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Pull v0.9.0 from upstream

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Jeremy 2024-01-10 17:02:33 -06:00
parent c78e984f3a
commit 71090c680b
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GPG Key ID: BE03111EB7ED6E2E
53 changed files with 1346 additions and 1100 deletions
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276
CMakeLists.txt vendored
View File

@ -2,10 +2,31 @@ cmake_minimum_required(VERSION 3.5)
project(libdwarf C CXX)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
include_directories( ${PROJECT_BINARY_DIR} )
# libdwarf
option(BUILD_NON_SHARED "build archive library libdwarf[p].a" TRUE)
option(BUILD_SHARED
"build shared library libdwarf[p].so and use it" FALSE)
# This adds compiler option -Wall (gcc compiler warnings)
option(WALL "Add -Wall" FALSE)
option(LIBDWARF_STATIC "add -DLIBDWARF_STATIC" FALSE)
option(BUILD_DWARFDUMP "Build dwarfdump (default is YES)" TRUE)
option(BUILD_DWARFGEN "Build dwarfgen (default is NO)" FALSE)
message(STATUS "Building dwarfgen ... ${BUILD_DWARFGEN}")
option(BUILD_DWARFEXAMPLE "Build dwarfexample (default is NO)" FALSE)
message(STATUS "Building dwarfexample... ${BUILD_DWARFEXAMPLE}")
option(DO_TESTING "Do certain api tests (default is NO)" FALSE)
message(STATUS "Building api tests ... ${DOTESTS}")
### end what was configure.cmake
option(PIC_ALWAYS "Build libdwarf with position-independent code for both static and shared (default is NO)" FALSE)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
include_directories( ${PROJECT_BINARY_DIR} )
# used to compile on MSVC upto 2013 where snprintf is not available
macro(msvc_posix target)
@ -87,12 +108,6 @@ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# would probably do this anyway).
set_property(GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS TRUE)
enable_testing()
# always include project's folder to includes
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_INCLUDE_CURRENT_DIR_IN_INTERFACE ON)
### begin what was configure.cmake
# cmake macros
include(TestBigEndian)
@ -114,181 +129,68 @@ if (${isBigEndian})
set ( WORDS_BIGENDIAN 1 )
endif()
# check_include_file( "sys/types.h" HAVE_SYS_TYPES_H) // Only used by dwarfgen
# check_include_file( "sys/stat.h" HAVE_SYS_STAT_H ) // Only used by dwarfgen
# check_include_file( "inttypes.h" HAVE_INTTYPES_H ) // Unused
# check_include_file( "memory.h" HAVE_MEMORY_H ) // Unused
# check_include_file( "strings.h" HAVE_STRINGS_H ) // Unused
check_include_file( "sys/types.h" HAVE_SYS_TYPES_H)
check_include_file( "sys/stat.h" HAVE_SYS_STAT_H )
check_include_file( "stdint.h" HAVE_STDINT_H )
check_include_file( "unistd.h" HAVE_UNISTD_H )
# check_include_file( "sgidefs.h" HAVE_SGIDEFS_H ) // Unused
check_include_file( "stdafx.h" HAVE_STDAFX_H )
check_include_file( "fcntl.h" HAVE_FCNTL_H )
### cmake provides no way to guarantee uint32_t present.
### configure does guarantee that.
# HAVE_UINTPTR_T: Unused
# uintptr_t: Unused
# HAVE_INTPTR_T: Unused
# if(HAVE_STDINT_H)
# check_c_source_compiles("
# #include <stdint.h>
# int main()
# {
# uintptr_t i; i = 12;
# return (int)i;
# }" HAVE_UINTPTR_T)
# check_c_source_compiles("
# #include <stdint.h>
# int main()
# {
# intptr_t i; i = 12;
# return (int)i;
# }" HAVE_INTPTR_T)
# endif()
# if (HAVE_UINTPTR_T)
# message(STATUS "HAVE_UINTPTR_T 1: uintptr_t defined in stdint.h... YES")
# else()
# message(STATUS "uintptr_t defined in stdint.h... NO")
# set(uintptr_t "unsigned long long int" )
# message(STATUS "Setting #define uintptr_t " ${uintptr_t})
# endif()
# if (uintptr_t)
# message(STATUS "uintptr_t value considered YES ")
# else()
# message(STATUS "uintptr_t value considered NO ")
# endif()
# if (HAVE_INTPTR_T)
# message(STATUS "HAVE_INTPTR_T 1: intptr_t defined in stdint.h... YES")
# else()
# message(STATUS "intptr_t defined in stdint.h... NO")
# set(uintptr_t "long long int" )
# message(STATUS "Setting #define intptr_t " ${intptr_t})
# endif()
# if (intptr_t)
# message(STATUS "intptr_t value considered YES ")
# else()
# message(STATUS "intptr_t value considered NO ")
# endif()
# Unused
# check_c_source_compiles("
# static unsigned foo( unsigned x,
# __attribute__ ((unused)) int y)
# {
# unsigned x2 = x + 1;
# return x2;
# }
# int main(void) {
# unsigned y = 0;
# y = foo(12,y);
# return 0;
# }" HAVE_UNUSED_ATTRIBUTE)
# message(STATUS "Checking compiler supports __attribute__ unused... ${HAVE_UNUSED_ATTRIBUTE}")
# Redundant
# check_c_source_compiles([=[
# #include "stdafx.h"
# int main()
# {
# int p; p = 27;
# return 0;
# }]=] HAVE_STDAFX_H)
#message(STATUS "Checking have windows stdafx.h... ${HAVE_STDAFX_H}")
set(CMAKE_REQUIRED_LIBRARIES z)
check_c_source_compiles( [=[
#include "zlib.h"
if(HAVE_STDINT_H)
check_c_source_compiles("
#include <stdint.h>
int main()
{
Bytef dest[100];
uLongf destlen = 100;
Bytef *src = 0;
uLong srclen = 3;
int res = uncompress(dest,&destlen,src,srclen);
if (res == Z_OK) {
/* ALL IS WELL */
}
return 0;
} ]=] HAVE_ZLIB )
check_c_source_compiles( [=[
#include "zlib.h"
uintptr_t i; i = 12;
return (int)i;
}" HAVE_UINTPTR_T)
check_c_source_compiles("
#include <stdint.h>
int main()
{
Bytef dest[100];
uLongf destlen = 100;
Bytef *src = 0;
uLong srclen = 3;
int res = uncompress(dest,&destlen,src,srclen);
if (res == Z_OK) {
/* ALL IS WELL */
}
return 0;
} ]=] HAVE_ZLIB_H )
set(CMAKE_REQUIRED_LIBRARIES)
if (HAVE_ZLIB)
# For linking in libz
set(DW_FZLIB "z")
intptr_t i; i = 12;
return (int)i;
}" HAVE_INTPTR_T)
endif()
if (HAVE_UINTPTR_T)
message(STATUS "HAVE_UINTPTR_T 1: uintptr_t defined in stdint.h... YES")
else()
message(STATUS "uintptr_t defined in stdint.h... NO")
set(uintptr_t "unsigned long long int" )
message(STATUS "Setting #define uintptr_t " ${uintptr_t})
endif()
if (uintptr_t)
message(STATUS "uintptr_t value considered YES ")
else()
message(STATUS "uintptr_t value considered NO ")
endif()
if (HAVE_INTPTR_T)
message(STATUS "HAVE_INTPTR_T 1: intptr_t defined in stdint.h... YES")
else()
message(STATUS "intptr_t defined in stdint.h... NO")
set(intptr_t "long long int" )
message(STATUS "Setting #define intptr_t " ${intptr_t})
endif()
if (intptr_t)
message(STATUS "intptr_t value considered YES ")
else()
message(STATUS "intptr_t value considered NO ")
endif()
set(CMAKE_REQUIRED_LIBRARIES zstd )
check_c_source_compiles( [=[
#include "zstd.h"
int main()
{
char * dest[100];
size_t destlen = 100;
char *src = 0;
size_t srclen = 3;
size_t res = ZSTD_decompress(dest,destlen,src,srclen);
if (res == destlen) {
/* ALL IS WELL */
}
return 0;
} ]=] HAVE_ZSTD )
check_c_source_compiles( [=[
#include "zstd.h"
int main()
{
char * dest[100];
size_t destlen = 100;
char *src = 0;
size_t srclen = 3;
size_t res = ZSTD_decompress(dest,destlen,src,srclen);
if (res == destlen) {
/* ALL IS WELL */
}
return 0;
} ]=] HAVE_ZSTD_H )
set(CMAKE_REQUIRED_LIBRARIES)
if (HAVE_ZSTD)
# For linking in libzstd
set(DW_FZSTD "zstd")
# Zlib and ZSTD need to be found otherwise disable it
find_package(ZLIB)
find_package(ZSTD)
if (ZLIB_FOUND AND ZSTD_FOUND )
set(HAVE_ZLIB TRUE)
set(HAVE_ZLIB_H TRUE)
set(HAVE_ZSTD TRUE)
set(HAVE_ZSTD_H TRUE)
endif()
# Unused
# check_c_source_compiles([=[
# #include <stdint.h>
# int main()
# {
# intptr_t p;
# p = 27;
# return 0;
# }]=] HAVE_INTPTR_T)
message(STATUS "CMAKE_SIZEOF_VOID_P ... " ${CMAKE_SIZEOF_VOID_P} )
# libdwarf
option(BUILD_NON_SHARED "build archive library libdwarf[p].a" TRUE)
option(BUILD_SHARED
"build shared library libdwarf[p].so and use it" FALSE)
# This adds compiler option -Wall (gcc compiler warnings)
option(WALL "Add -Wall" FALSE)
option(LIBDWARF_STATIC "add -DLIBDWARF_STATIC" FALSE)
# DW_FWALLXX are gnu C++ options.
if (WALL)
set(DW_FWALLXX -Wall -Wextra -Wno-unused-private-field -Wpointer-arith -Wmissing-declarations -Wcomment -Wformat -Wpedantic -Wuninitialized -Wshadow -Wno-long-long -Werror)
@ -304,40 +206,14 @@ endif()
# unset(DW_LIBDWARF_STATIC)
#endif()
option(BUILD_DWARFDUMP "Build dwarfdump (default is YES)" FALSE)
option(BUILD_DWARFGEN "Build dwarfgen (default is NO)" FALSE)
message(STATUS "Building dwarfgen ... ${BUILD_DWARFGEN}")
option(BUILD_DWARFEXAMPLE "Build dwarfexample (default is NO)" FALSE)
message(STATUS "Building dwarfexample... ${BUILD_DWARFEXAMPLE}")
option(DO_TESTING "Do certain api tests (default is NO)" FALSE)
message(STATUS "Building api tests ... ${DOTESTS}")
### end what was configure.cmake
option(PIC_ALWAYS "Build libdwarf with position-independent code for both static and shared (default is NO)" FALSE)
configure_file(cmake/config.h.cmake config.h)
if(BUILD_NON_SHARED)
set(DW_LIBDWARF_STATIC -DLIBDWARF_STATIC)
set(BUILD_SHARED_LIBS NO)
set(DWARF_TARGETS dwarf-static)
set(DWARF_TYPES STATIC)
set(dwarf-target dwarf-static)
set(DWARFP_TARGETS dwarfp-static)
set(DWARFP_TYPES STATIC)
set(dwarfp-target dwarfp-static)
set(DW_LIBDWARF_STATIC -DLIBDWARF_STATIC)
set(BUILD_SHARED_LIBS NO)
else()
unset(DW_LIBDWARF_STATIC)
set(BUILD_SHARED_LIBS YES)
set(DWARF_TARGETS dwarf-shared)
set(DWARF_TYPES SHARED)
set(dwarf-target dwarf-shared)
set(DWARFP_TARGETS dwarfp-shared)
set(DWARFP_TYPES SHARED)
set(dwarfp-target dwarfp-shared)
unset(DW_LIBDWARF_STATIC)
set(BUILD_SHARED_LIBS YES)
endif()
add_subdirectory(src/lib/libdwarf)
@ -351,13 +227,13 @@ if ( BUILD_DWARFEXAMPLE )
endif()
if ( BUILD_DWARFGEN )
set(LIBDWARF_INCLUDE_DIR ../libdwarf)
add_subdirectory(src/lib/libdwarfp)
add_subdirectory(src/bin/dwarfgen)
add_subdirectory(src/lib/libdwarfp)
add_subdirectory(src/bin/dwarfgen)
endif()
if (DO_TESTING)
add_subdirectory(test)
enable_testing()
add_subdirectory(test)
endif()
message(STATUS "Install prefix ... ${CMAKE_INSTALL_PREFIX}" )

2
cmake/FindZSTD.cmake vendored
View File

@ -58,6 +58,6 @@ find_package_handle_standard_args(ZSTD REQUIRED_VARS ZSTD_LIBRARIES ZSTD_INCLUDE
if (ZSTD_FOUND)
if (NOT TARGET ZSTD::ZSTD)
add_library(ZSTD::ZSTD UNKNOWN IMPORTED)
set_target_properties(ZSTD::ZSTD PROPERTIES IMPORTED_LOCATION "${ZSTD_LIBRARIES}" INTERFACE_INCLUDE_DIRECTORIES "${ZSTD_INCLUDE_DIRS}")
set_target_properties(ZSTD::ZSTD PROPERTIES IMPORTED_LOCATION "${ZSTD_LIBRARIES}" INTERFACE_INCLUDE_DIRECTORIES "${ZSTD_INCLUDE_DIR}")
endif ()
endif ()

26
cmake/config.h.cmake vendored
View File

@ -10,41 +10,24 @@
/* Define to 1 if you have the <dlfcn.h> header file. */
#cmakedefine HAVE_DLFCN_H 1
/* Define to 1 if you have the <libelf.h> header file. */
#cmakedefine HAVE_INTTYPES_H 1
/* Define to 1 if you have the <fcntl.h> header file. */
#cmakedefine HAVE_FCNTL_H 1
/* Define to 1 if you have the <malloc.h> header file. */
#cmakedefine HAVE_MALLOC_H 1
/* Define to 1 if you have the <memory.h> header file. */
#cmakedefine HAVE_MEMORY_H 1
/* Set to 1 if big endian . */
#cmakedefine WORDS_BIGENDIAN 1
/* Define to 1 if you have the <sgidefs.h> header file. */
#cmakedefine HAVE_SGIDEFS_H 1
/* Define to 1 if you have the <stdint.h> header file. */
#cmakedefine HAVE_STDINT_H 1
/* Define to 1 if you have the <strings.h> header file. */
#cmakedefine HAVE_STRINGS_H 1
/* Define to 1 if you have the <sys/stat.h> header file. */
#cmakedefine HAVE_SYS_STAT_H 1
/* Define to 1 if you have the <sys/types.h> header file. */
#cmakedefine HAVE_SYS_TYPES_H 1
/* Define to HAVE_UINTPTR_T 1 if the system has the type `uintptr_t'. */
#cmakedefine HAVE_UINTPTR_T 1
/* Define to 1 if the system has the type `intptr_t'. */
#cmakedefine HAVE_INTPTR_T
/* Define to the uintptr_t to the type of an unsigned integer
type wide enough to hold a pointer
@ -55,15 +38,18 @@
/* Define to 1 if you have the <unistd.h> header file. */
#cmakedefine HAVE_UNISTD_H 1
/* Set to 1 if __attribute__ ((unused)) is available. */
#cmakedefine HAVE_UNUSED_ATTRIBUTE 1
/* Set to 1 if zlib decompression is available. */
#cmakedefine HAVE_ZLIB 1
/* Define to 1 if you have the <zlib.h> header file. */
#cmakedefine HAVE_ZLIB_H 1
/* Set to 1 if zstd decompression is available. */
#cmakedefine HAVE_ZSTD 1
/* Define to 1 if you have the <zstd.h> header file. */
#cmakedefine HAVE_ZSTD_H 1
/* Define to the sub-directory where libtool stores uninstalled libraries. */
#cmakedefine LT_OBJDIR 1

239
patches/CMakeLists.patch
View File

@ -1,239 +0,0 @@
--- CMakeLists.txt 2023-11-13 10:57:07.278246800 -0500
+++ CMakeListsUpdated.txt 2023-11-13 11:11:35.551623300 -0500
@@ -11,7 +11,7 @@
macro(msvc_posix target)
if(MSVC AND ("${MSVC_VERSION}" LESS 1900))
# under VS 2015
- target_compile_definitions(${target} PUBLIC
+ target_compile_definitions(${target} PUBLIC
snprintf=_snprintf)
endif()
endmacro()
@@ -36,7 +36,7 @@
if (LIBDWARF_CRT STREQUAL "MT")
message(STATUS "Using MT runtime by compile flag replacement")
# taken from the CMake FAQ
- foreach(flag_v
+ foreach(flag_v
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_RELEASE CMAKE_C_FLAGS_MINSIZEREL
CMAKE_C_FLAGS_RELWITHDEBINFO
@@ -102,7 +102,7 @@
include(CheckSymbolExists)
### Version also appears in configure.ac
set(VERSION 0.9.0)
-set(PACKAGE_VERSION "\"${VERSION}\"")
+set(PACKAGE_VERSION "\"${VERSION}\"")
set(PACKAGE_NAME "libdwarf" )
set(PACKAGE_STRING "\"${PACKAGE_NAME} ${VERSION}\"")
string(REGEX REPLACE "[\"]" "" tarname1 "${PACKAGE_STRING}" )
@@ -114,83 +114,87 @@
set ( WORDS_BIGENDIAN 1 )
endif()
-check_include_file( "sys/types.h" HAVE_SYS_TYPES_H)
-check_include_file( "sys/stat.h" HAVE_SYS_STAT_H )
-check_include_file( "inttypes.h" HAVE_INTTYPES_H )
-check_include_file( "memory.h" HAVE_MEMORY_H )
-check_include_file( "strings.h" HAVE_STRINGS_H )
+# check_include_file( "sys/types.h" HAVE_SYS_TYPES_H) // Only used by dwarfgen
+# check_include_file( "sys/stat.h" HAVE_SYS_STAT_H ) // Only used by dwarfgen
+# check_include_file( "inttypes.h" HAVE_INTTYPES_H ) // Unused
+# check_include_file( "memory.h" HAVE_MEMORY_H ) // Unused
+# check_include_file( "strings.h" HAVE_STRINGS_H ) // Unused
check_include_file( "stdint.h" HAVE_STDINT_H )
check_include_file( "unistd.h" HAVE_UNISTD_H )
-check_include_file( "sgidefs.h" HAVE_SGIDEFS_H )
+# check_include_file( "sgidefs.h" HAVE_SGIDEFS_H ) // Unused
check_include_file( "stdafx.h" HAVE_STDAFX_H )
-check_include_file( "fcntl.h" HAVE_FCNTL_H )
+check_include_file( "fcntl.h" HAVE_FCNTL_H )
### cmake provides no way to guarantee uint32_t present.
### configure does guarantee that.
-if(HAVE_STDINT_H)
- check_c_source_compiles("
- #include <stdint.h>
- int main()
- {
- uintptr_t i; i = 12;
- return (int)i;
- }" HAVE_UINTPTR_T)
- check_c_source_compiles("
- #include <stdint.h>
- int main()
- {
- intptr_t i; i = 12;
- return (int)i;
- }" HAVE_INTPTR_T)
-endif()
-if (HAVE_UINTPTR_T)
- message(STATUS "HAVE_UINTPTR_T 1: uintptr_t defined in stdint.h... YES")
-else()
- message(STATUS "uintptr_t defined in stdint.h... NO")
- set(uintptr_t "unsigned long long int" )
- message(STATUS "Setting #define uintptr_t " ${uintptr_t})
-endif()
-if (uintptr_t)
- message(STATUS "uintptr_t value considered YES ")
-else()
- message(STATUS "uintptr_t value considered NO ")
-endif()
-if (HAVE_INTPTR_T)
- message(STATUS "HAVE_INTPTR_T 1: intptr_t defined in stdint.h... YES")
-else()
- message(STATUS "intptr_t defined in stdint.h... NO")
- set(uintptr_t "long long int" )
- message(STATUS "Setting #define intptr_t " ${intptr_t})
-endif()
-if (intptr_t)
- message(STATUS "intptr_t value considered YES ")
-else()
- message(STATUS "intptr_t value considered NO ")
-endif()
-
-
-check_c_source_compiles("
- static unsigned foo( unsigned x,
- __attribute__ ((unused)) int y)
- {
- unsigned x2 = x + 1;
- return x2;
- }
-
- int main(void) {
- unsigned y = 0;
- y = foo(12,y);
- return 0;
- }" HAVE_UNUSED_ATTRIBUTE)
-message(STATUS "Checking compiler supports __attribute__ unused... ${HAVE_UNUSED_ATTRIBUTE}")
-
-check_c_source_compiles([=[
- #include "stdafx.h"
- int main()
- {
- int p; p = 27;
- return 0;
- }]=] HAVE_STDAFX_H)
+# HAVE_UINTPTR_T: Unused
+# uintptr_t: Unused
+# HAVE_INTPTR_T: Unused
+# if(HAVE_STDINT_H)
+# check_c_source_compiles("
+# #include <stdint.h>
+# int main()
+# {
+# uintptr_t i; i = 12;
+# return (int)i;
+# }" HAVE_UINTPTR_T)
+# check_c_source_compiles("
+# #include <stdint.h>
+# int main()
+# {
+# intptr_t i; i = 12;
+# return (int)i;
+# }" HAVE_INTPTR_T)
+# endif()
+# if (HAVE_UINTPTR_T)
+# message(STATUS "HAVE_UINTPTR_T 1: uintptr_t defined in stdint.h... YES")
+# else()
+# message(STATUS "uintptr_t defined in stdint.h... NO")
+# set(uintptr_t "unsigned long long int" )
+# message(STATUS "Setting #define uintptr_t " ${uintptr_t})
+# endif()
+# if (uintptr_t)
+# message(STATUS "uintptr_t value considered YES ")
+# else()
+# message(STATUS "uintptr_t value considered NO ")
+# endif()
+# if (HAVE_INTPTR_T)
+# message(STATUS "HAVE_INTPTR_T 1: intptr_t defined in stdint.h... YES")
+# else()
+# message(STATUS "intptr_t defined in stdint.h... NO")
+# set(uintptr_t "long long int" )
+# message(STATUS "Setting #define intptr_t " ${intptr_t})
+# endif()
+# if (intptr_t)
+# message(STATUS "intptr_t value considered YES ")
+# else()
+# message(STATUS "intptr_t value considered NO ")
+# endif()
+
+# Unused
+# check_c_source_compiles("
+# static unsigned foo( unsigned x,
+# __attribute__ ((unused)) int y)
+# {
+# unsigned x2 = x + 1;
+# return x2;
+# }
+
+# int main(void) {
+# unsigned y = 0;
+# y = foo(12,y);
+# return 0;
+# }" HAVE_UNUSED_ATTRIBUTE)
+# message(STATUS "Checking compiler supports __attribute__ unused... ${HAVE_UNUSED_ATTRIBUTE}")
+
+# Redundant
+# check_c_source_compiles([=[
+# #include "stdafx.h"
+# int main()
+# {
+# int p; p = 27;
+# return 0;
+# }]=] HAVE_STDAFX_H)
#message(STATUS "Checking have windows stdafx.h... ${HAVE_STDAFX_H}")
set(CMAKE_REQUIRED_LIBRARIES z)
@@ -223,7 +227,7 @@
return 0;
} ]=] HAVE_ZLIB_H )
set(CMAKE_REQUIRED_LIBRARIES)
-if (HAVE_ZLIB)
+if (HAVE_ZLIB)
# For linking in libz
set(DW_FZLIB "z")
endif()
@@ -264,21 +268,21 @@
endif()
-
-check_c_source_compiles([=[
-#include <stdint.h>
-int main()
-{
- intptr_t p;
- p = 27;
- return 0;
-}]=] HAVE_INTPTR_T)
+# Unused
+# check_c_source_compiles([=[
+# #include <stdint.h>
+# int main()
+# {
+# intptr_t p;
+# p = 27;
+# return 0;
+# }]=] HAVE_INTPTR_T)
message(STATUS "CMAKE_SIZEOF_VOID_P ... " ${CMAKE_SIZEOF_VOID_P} )
-# libdwarf
+# libdwarf
option(BUILD_NON_SHARED "build archive library libdwarf[p].a" TRUE)
-option(BUILD_SHARED
+option(BUILD_SHARED
"build shared library libdwarf[p].so and use it" FALSE)
# This adds compiler option -Wall (gcc compiler warnings)
@@ -300,7 +304,7 @@
# unset(DW_LIBDWARF_STATIC)
#endif()
-option(BUILD_DWARFDUMP "Build dwarfdump (default is YES)" TRUE)
+option(BUILD_DWARFDUMP "Build dwarfdump (default is YES)" FALSE)
option(BUILD_DWARFGEN "Build dwarfgen (default is NO)" FALSE)
message(STATUS "Building dwarfgen ... ${BUILD_DWARFGEN}")

3
pull.sh
View File

@ -5,7 +5,8 @@ rm -rfv cmake src CMakeLists.txt COPYING
echo "Fetching"
git clone https://github.com/davea42/libdwarf-code.git
cd libdwarf-code
git checkout "6216e185863f41d6f19ab850caabfff7326020d7" # v0.8.0
#git checkout "6216e185863f41d6f19ab850caabfff7326020d7" # v0.8.0
git checkout "8b0bd09d8c77d45a68cb1bb00a54186a92b683d9" # v0.9.0
cd ..
echo "Copying files"
mkdir -p src/lib

63
src/lib/libdwarf/CMakeLists.txt vendored
View File

@ -91,50 +91,34 @@ endif()
include(GNUInstallDirs)
list(LENGTH DWARF_TARGETS targetCount)
math(EXPR targetCount "${targetCount} - 1")
list(APPEND DWARF_LIBS ${LIBELF_LIBRARIES})
if (DW_FZLIB)
list(APPEND DWARF_LIBS z)
if(BUILD_SHARED)
add_library(dwarf SHARED ${SOURCES} ${HEADERS} ${CONFIGURATION_FILES})
add_library(libdwarf::dwarf-shared ALIAS dwarf)
else()
add_library(dwarf STATIC ${SOURCES} ${HEADERS} ${CONFIGURATION_FILES})
add_library(libdwarf::dwarf-static ALIAS dwarf)
endif()
if (DW_FZSTD)
list(APPEND DWARF_LIBS zstd)
endif()
foreach(i RANGE ${targetCount})
list(GET DWARF_TARGETS ${i} target)
list(GET DWARF_TYPES ${i} type)
add_library(${target} ${type} ${SOURCES} ${HEADERS}
${GENNAMES_OUTPUT} ${CONFIGURATION_FILES})
add_library(libdwarf::${target} ALIAS ${target})
set_folder(${target} src/lib/libdwarf)
target_compile_options(${target} PRIVATE ${COMPILER_FLAGS}
${DW_FWALL})
msvc_posix(${target})
target_compile_definitions(${target} PUBLIC ${DEFS})
target_include_directories(
${target}
PUBLIC
set_folder(dwarf src/lib/libdwarf)
target_compile_options(dwarf PRIVATE ${COMPILER_FLAGS} ${DW_FWALL})
msvc_posix(dwarf)
target_compile_definitions(dwarf PUBLIC ${DEFS})
target_include_directories(dwarf PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
)
if(ZLIB_FOUND AND ZSTD_FOUND)
target_link_libraries(dwarf PRIVATE ZLIB::ZLIB ZSTD::ZSTD )
endif()
target_link_libraries(${target} PUBLIC ${DW_FZLIB} ${DW_FZSTD} )
set(SUFFIX $<$<EQUAL:${CMAKE_SIZEOF_VOID_P},8>:64>)
set(LIBDIR lib${SUFFIX})
set(BINDIR bin${SUFFIX})
set_target_properties(${target} PROPERTIES OUTPUT_NAME dwarf)
set(SUFFIX $<$<EQUAL:${CMAKE_SIZEOF_VOID_P},8>:64>)
set(LIBDIR lib${SUFFIX})
set(BINDIR bin${SUFFIX})
install(TARGETS ${target}
RUNTIME DESTINATION ${BINDIR}
LIBRARY DESTINATION ${LIBDIR}
ARCHIVE DESTINATION ${LIBDIR})
endforeach()
install(TARGETS dwarf
RUNTIME DESTINATION ${BINDIR}
LIBRARY DESTINATION ${LIBDIR}
ARCHIVE DESTINATION ${LIBDIR})
configure_file(libdwarf.pc.cmake libdwarf.pc @ONLY )
@ -142,8 +126,7 @@ configure_file(libdwarf.pc.cmake libdwarf.pc @ONLY )
# another CMakeLists.txt to make install work properly
# for cmake before cmake 3.13. This also works
# for newer cmake.
add_custom_target(dd DEPENDS ${DWARF_TARGETS} dwarfdump)
install(TARGETS ${DWARF_TARGETS} EXPORT libdwarfTargets
install(TARGETS dwarf EXPORT libdwarfTargets
ARCHIVE DESTINATION lib
LIBRARY DESTINATION lib
INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")

14
src/lib/libdwarf/dwarf_abbrev.c vendored
View File

@ -39,6 +39,8 @@
#include "libdwarf_private.h"
#include "dwarf_base_types.h"
#include "dwarf_opaque.h"
#include "libdwarf_private.h"
#include "dwarf_util.h"
#include "dwarf_abbrev.h"
#include "dwarf_alloc.h"
#include "dwarf_error.h"
@ -168,15 +170,7 @@ dwarf_get_abbrev(Dwarf_Debug dbg,
Dwarf_Unsigned abbrev_implicit_const_count_out = 0;
int res = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"calling dwarf_get_abbrev "
"either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_abbrev()");
if (dbg->de_debug_abbrev.dss_data == 0) {
/* Loads abbrev section (and .debug_info as we do those
together). */
@ -372,7 +366,7 @@ dwarf_get_abbrev_entry_b(Dwarf_Abbrev abbrev,
}
dbg = abbrev->dab_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"calling dwarf_get_abbrev_entry_b() "

14
src/lib/libdwarf/dwarf_alloc.c vendored
View File

@ -584,7 +584,7 @@ _dwarf_get_alloc(Dwarf_Debug dbg,
unsigned int type = alloc_type;
short action = 0;
if (dbg == NULL) {
if (IS_INVALID_DBG(dbg)) {
#if DEBUG_ALLOC
printf("libdwarfdetector ALLOC dbg null "
"ret NULL type 0x%x size %lu line %d %s\n",
@ -748,7 +748,7 @@ dwarf_dealloc_die( Dwarf_Die die)
return;
}
dbg = context->cc_dbg;
if (!dbg ||dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
return;
}
dwarf_dealloc(dbg,die,DW_DLA_DIE);
@ -813,7 +813,7 @@ dwarf_dealloc(Dwarf_Debug dbg,
#endif /* DEBUG_ALLOC*/
return;
}
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
/* App error, or an app that failed in a
dwarf_init*() or dwarf_elf_init*() call.
@ -994,7 +994,7 @@ _dwarf_get_debug(Dwarf_Unsigned filesize)
Dwarf_Debug dbg;
dbg = (Dwarf_Debug) malloc(sizeof(struct Dwarf_Debug_s));
if (dbg == NULL) {
if (!dbg) {
return NULL;
}
memset(dbg, 0, sizeof(struct Dwarf_Debug_s));
@ -1069,11 +1069,7 @@ _dwarf_free_all_of_one_debug(Dwarf_Debug dbg)
{
unsigned g = 0;
if (dbg == NULL) {
_dwarf_free_static_errlist();
return DW_DLV_NO_ENTRY;
}
if (dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_free_static_errlist();
return DW_DLV_NO_ENTRY;
}

8
src/lib/libdwarf/dwarf_arange.c vendored
View File

@ -416,11 +416,7 @@ dwarf_get_aranges(Dwarf_Debug dbg,
/* ***** BEGIN CODE ***** */
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_aranges()");
res = _dwarf_load_section(dbg, &dbg->de_debug_aranges, error);
if (res != DW_DLV_OK) {
return res;
@ -500,7 +496,7 @@ _dwarf_get_aranges_addr_offsets(Dwarf_Debug dbg,
if (error != NULL)
*error = NULL;
if (dbg == NULL) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}

7
src/lib/libdwarf/dwarf_crc32.c vendored
View File

@ -45,6 +45,7 @@
#include "libdwarf.h"
#include "libdwarf_private.h"
#include "dwarf_base_types.h"
#include "dwarf_util.h"
#include "dwarf_opaque.h"
#include "dwarf_error.h"
@ -75,11 +76,7 @@ dwarf_crc32 (Dwarf_Debug dbg,unsigned char *crcbuf,
unsigned int init = 0;
int fd = -1;
if (!dbg) {
_dwarf_error_string(dbg,error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: Bad call to dwarf_crc32");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_crc32()");
if (!crcbuf) {
return DW_DLV_NO_ENTRY;
}

3
src/lib/libdwarf/dwarf_debug_sup.c vendored
View File

@ -56,7 +56,7 @@ static void
get_sup_fields(Dwarf_Debug dbg,
struct Dwarf_Section_s **sec_out)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return;
}
*sec_out = &dbg->de_debug_sup;
@ -97,6 +97,7 @@ dwarf_get_debug_sup(Dwarf_Debug dbg,
Dwarf_Small *enddata = 0;
Dwarf_Unsigned size = 0;
CHECK_DBG(dbg,error,"dwarf_get_debug_sup()");
res = load_sup(dbg,error);
if (res != DW_DLV_OK) {
return res;

1
src/lib/libdwarf/dwarf_debugaddr.c vendored
View File

@ -105,6 +105,7 @@ dwarf_debug_addr_table(Dwarf_Debug dbg,
/* we will instantiate this below */
Dwarf_Debug_Addr_Table newad = 0;
CHECK_DBG(dbg,error,"dwarf_debug_addr_table()");
res = _dwarf_load_section(dbg, &dbg->de_debug_addr,error);
if (res == DW_DLV_NO_ENTRY) {
return res;

28
src/lib/libdwarf/dwarf_debuglink.c vendored
View File

@ -939,7 +939,17 @@ _dwarf_extract_buildid(Dwarf_Debug dbg,
and are only valid while that dbg is open.
debuglink_path_returned.
crc_returned, buildid_owner_name_returned,
buildid_returned, */
buildid_returned,
Caller must initialize the passed-in pointers
debuglink_fullpath_returned
and paths_returned to zero, and other arguments
to zero or sensible values before calling.
If the dbg was set up via dwarf_init_b(fd... )
then dbg->de_path will be 0, a null pointer
which makes some of this less than useful.
*/
int
dwarf_gnu_debuglink(Dwarf_Debug dbg,
char ** debuglink_path_returned, /* do not free*/
@ -951,7 +961,7 @@ dwarf_gnu_debuglink(Dwarf_Debug dbg,
char ** buildid_owner_name_returned,
unsigned char ** buildid_returned,
unsigned * buildid_length_returned,
char *** paths_returned,
char *** paths_returned, /* caller frees */
unsigned * paths_count_returned,
Dwarf_Error* error)
{
@ -962,6 +972,7 @@ dwarf_gnu_debuglink(Dwarf_Debug dbg,
struct Dwarf_Section_s * pdebuglink = 0;
struct Dwarf_Section_s * pbuildid = 0;
CHECK_DBG(dbg,error,"dwarf_gnu_debuglink()");
if (dbg->de_gnu_debuglink.dss_size) {
pdebuglink = &dbg->de_gnu_debuglink;
res = _dwarf_load_section(dbg, pdebuglink,error);
@ -978,9 +989,14 @@ dwarf_gnu_debuglink(Dwarf_Debug dbg,
}
if (!pdebuglink && !pbuildid) {
*debuglink_fullpath_returned = strdup(dbg->de_path);
*debuglink_fullpath_length_returned =
if (dbg->de_path) {
*debuglink_fullpath_returned = strdup(dbg->de_path);
*debuglink_fullpath_length_returned =
(unsigned)strlen(dbg->de_path);
} else {
*debuglink_fullpath_returned = 0;
*debuglink_fullpath_length_returned = 0;
}
return DW_DLV_OK;
}
@ -1011,7 +1027,8 @@ dwarf_gnu_debuglink(Dwarf_Debug dbg,
}
}
dwarfstring_constructor(&debuglink_fullpath);
pathname = (char *)dbg->de_path;
pathname = dbg->de_path?(char *)dbg->de_path:
"";
if (pathname && paths_returned) {
/* Caller wants paths created and returned. */
res = _dwarf_construct_linkedto_path(
@ -1059,6 +1076,7 @@ dwarf_add_debuglink_global_path(Dwarf_Debug dbg,
char **glpaths = 0;
char *path1 = 0;
CHECK_DBG(dbg,error,"dwarf_add_debuglink_global_path()");
glpath_count_in = dbg->de_gnu_global_path_count;
glpath_count_out = glpath_count_in+1;
glpaths = (char **)malloc(sizeof(char *)*

10
src/lib/libdwarf/dwarf_debugnames.c vendored
View File

@ -779,13 +779,7 @@ dwarf_dnames_header(Dwarf_Debug dbg,
Dwarf_Small *curptr = 0;
int res = 0;
if (!dbg) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: Dwarf_Debug argument in "
"dwarf_dnames_header() "
"call is NULL");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_dnames_header()");
res = _dwarf_load_section(dbg, &dbg->de_debug_names, error);
if (res != DW_DLV_OK) {
return res;
@ -1497,7 +1491,7 @@ dwarf_dnames_name(Dwarf_Dnames_Head dn,
return DW_DLV_ERROR;
}
dbg = dn->dn_dbg;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"a call to dwarf_dnames_name() "

355
src/lib/libdwarf/dwarf_die_deliv.c vendored
View File

@ -570,10 +570,15 @@ fill_in_dwp_offsets_if_present(Dwarf_Debug dbg,
return DW_DLV_OK;
}
/* If returning DW_DLV_OK this will
push the cudie pointer back up through
local_cudie_return if local_cudie_return
is non-null. */
static int
finish_cu_context_via_cudie_inner(
Dwarf_Debug dbg,
Dwarf_CU_Context cu_context,
Dwarf_Die *local_cudie_return,
Dwarf_Error *error)
{
/* DW4: Look for DW_AT_dwo_id and
@ -587,7 +592,8 @@ finish_cu_context_via_cudie_inner(
/* Must call the internal siblingof so
we do not depend on the dbg...de_cu_context
used by and for dwarf_cu_header_* calls. */
used by and for dwarf_cu_header_* calls.
Safe because we know the correct cu_context. */
resdwo = _dwarf_siblingof_internal(dbg,NULL,
cu_context,
cu_context->cc_is_info,
@ -601,8 +607,11 @@ finish_cu_context_via_cudie_inner(
error);
if (resdwob == DW_DLV_NO_ENTRY) {
/* The CU die has no children */
dwarf_dealloc_die(cudie);
cudie = 0;
if (local_cudie_return) {
*local_cudie_return = cudie;
} else {
dwarf_dealloc_die(cudie);
}
cu_context->cc_cu_die_has_children = FALSE;
return DW_DLV_OK;
}
@ -616,7 +625,11 @@ finish_cu_context_via_cudie_inner(
if (resdwob == DW_DLV_OK) {
cu_context->cc_cu_die_tag = cutag;
}
dwarf_dealloc_die(cudie);
if (local_cudie_return) {
*local_cudie_return = cudie;
} else {
dwarf_dealloc_die(cudie);
}
return resdwob;
}
if (resdwo == DW_DLV_NO_ENTRY) {
@ -994,6 +1007,43 @@ dwarf_next_cu_header_d(Dwarf_Debug dbg,
res = _dwarf_next_cu_header_internal(dbg,
is_info,
NULL,
cu_header_length,
version_stamp,
abbrev_offset,
address_size,
offset_size,
extension_size,
signature,
&has_signature,
typeoffset,
next_cu_offset,
header_cu_type,
error);
return res;
}
int
dwarf_next_cu_header_e(Dwarf_Debug dbg,
Dwarf_Bool is_info,
Dwarf_Die * cu_die_out,
Dwarf_Unsigned * cu_header_length,
Dwarf_Half * version_stamp,
Dwarf_Unsigned * abbrev_offset,
Dwarf_Half * address_size,
Dwarf_Half * offset_size,
Dwarf_Half * extension_size,
Dwarf_Sig8 * signature,
Dwarf_Unsigned * typeoffset,
Dwarf_Unsigned * next_cu_offset,
Dwarf_Half * header_cu_type,
Dwarf_Error * error)
{
Dwarf_Bool has_signature = FALSE;
int res = 0;
res = _dwarf_next_cu_header_internal(dbg,
is_info,
cu_die_out,
cu_header_length,
version_stamp,
abbrev_offset,
@ -1429,10 +1479,14 @@ assign_correct_unit_type(Dwarf_CU_Context cu_context)
}
}
/* If local_cudie_return non-null, and returning DW_DLV_OK,
then we return a valid CU_DIE through
local_cudie_return. */
static int
finish_up_cu_context_from_cudie(Dwarf_Debug dbg,
Dwarf_Unsigned offset,
Dwarf_CU_Context cu_context,
Dwarf_Die *cudie_return,
Dwarf_Error *error)
{
int version = cu_context->cc_version_stamp;
@ -1471,8 +1525,7 @@ finish_up_cu_context_from_cudie(Dwarf_Debug dbg,
and even DW3 and DW4 and some non-std DW2 */
{
res = finish_cu_context_via_cudie_inner(dbg,
cu_context,
error);
cu_context,cudie_return, error);
if (res == DW_DLV_ERROR) {
return res;
}
@ -1582,6 +1635,9 @@ _dwarf_calculate_next_cu_context_offset(Dwarf_CU_Context cu_context)
return next_cu_offset;
}
/* If local_cudie_return non-null, and returning DW_DLV_OK,
then we return a valid CU_DIE through
local_cudie_return. */
int
_dwarf_create_a_new_cu_context_record_on_list(
Dwarf_Debug dbg,
@ -1590,6 +1646,7 @@ _dwarf_create_a_new_cu_context_record_on_list(
Dwarf_Unsigned section_size,
Dwarf_Unsigned new_cu_offset,
Dwarf_CU_Context *context_out,
Dwarf_Die *cudie_return,
Dwarf_Error *error)
{
int res = 0;
@ -1610,7 +1667,7 @@ _dwarf_create_a_new_cu_context_record_on_list(
/* The called func does not dealloc cu_context
in case of error, so we do it here. */
res = finish_up_cu_context_from_cudie(dbg,new_cu_offset,
cu_context,error);
cu_context,cudie_return,error);
if (res == DW_DLV_ERROR) {
local_dealloc_cu_context(dbg,cu_context);
return res;
@ -1693,6 +1750,7 @@ _dwarf_load_die_containing_section(Dwarf_Debug dbg,
int
_dwarf_next_cu_header_internal(Dwarf_Debug dbg,
Dwarf_Bool is_info,
Dwarf_Die *cu_die_out,
Dwarf_Unsigned * cu_header_length,
Dwarf_Half * version_stamp,
Dwarf_Unsigned * abbrev_offset,
@ -1713,6 +1771,7 @@ _dwarf_next_cu_header_internal(Dwarf_Debug dbg,
{
/* Offset for current and new CU. */
Dwarf_Unsigned new_offset = 0;
Dwarf_Die local_cudie = 0;
/* CU Context for current CU. */
Dwarf_CU_Context cu_context = 0;
@ -1724,13 +1783,7 @@ _dwarf_next_cu_header_internal(Dwarf_Debug dbg,
/* ***** BEGIN CODE ***** */
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: calling dwarf_next_cuheader_d() "
"Either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_next_cuheader_[d,e]()");
if (is_info) {
dis =&dbg->de_info_reading;
dataptr = dbg->de_debug_info.dss_data;
@ -1748,73 +1801,6 @@ _dwarf_next_cu_header_internal(Dwarf_Debug dbg,
return res;
}
}
#if 0
/* Get offset into .debug_info of next CU.
If dbg has no context,
this has to be the first one. */
if (!dis->de_cu_context) {
Dwarf_Small *dataptr = is_info?
dbg->de_debug_info.dss_data:
dbg->de_debug_types.dss_data;
new_offset = 0;
if (!dataptr) {
Dwarf_Error err2= 0;
int resd = is_info?
_dwarf_load_debug_info(dbg, &err2):
_dwarf_load_debug_types(dbg,&err2);
if (resd != DW_DLV_OK) {
if (reloc_incomplete(resd,err2)) {
/* We will assume all is ok, though it is not.
Relocation errors need not be fatal. */
char msg_buf[300];
char *dwerrmsg = 0;
char *msgprefix =
"Relocations did not complete successfully, "
"but we are " " ignoring error: ";
size_t totallen = 0;
size_t prefixlen = 0;
dwerrmsg = dwarf_errmsg(err2);
prefixlen = strlen(msgprefix);
totallen = prefixlen + strlen(dwerrmsg);
if ( totallen >= sizeof(msg_buf)) {
/* Impossible unless something corrupted.
Provide a shorter dwerrmsg*/
const char * m=
"Error:corrupted dwarf message table!");
_dwarf_safe_strcpy(msg_buf,
sizeof(msg_buf),
m,strlen(m));
} else {
_dwarf_safe_strcpy,strcpy(msg_buf,
sizeof(msg_buf),msgprefix,
prefixlen);
_dwarf_safe_strcpy(msg_buf+prefixlen,
sizeof(msg_buf)-prefixlen,
dwerrmsg,strlen(dwerrmsg));
}
dwarf_insert_harmless_error(dbg,msg_buf);
/* Fall thru to use the newly loaded section.
even though it might not be adequately
relocated. */
if (resd == DW_DLV_ERROR) {
dwarf_dealloc_error(dbg,err2);
err2 = 0;
}
} else {
if (error) {
*error = err2;
err2 = 0;
}
/* There is nothing here, or
what is here is damaged. */
return resd;
}
}
}
}
#endif /*0*/
if (!dis->de_cu_context) {
/* We are leaving new_offset zero. We are at the
start of a section. */
@ -1847,16 +1833,21 @@ _dwarf_next_cu_header_internal(Dwarf_Debug dbg,
if (!cu_context) {
res = _dwarf_create_a_new_cu_context_record_on_list(
dbg,dis,is_info,section_size,new_offset,
&cu_context,error);
&cu_context,&local_cudie,error);
if (res != DW_DLV_OK) {
if (local_cudie) {
dwarf_dealloc_die(local_cudie);
}
return res;
}
}
/* Next assignment is what makes
_dwarf_next_cu_header*()
_dwarf_next_cu_header_d()
with no offset presented work to march
through all the CUs in order. Other places
creating a cu_context do not set de_cu_context. */
creating a cu_context do not set de_cu_context.
if callers use dwarf_next_cu_header_e() this
is unimportant but not harmful. */
dis->de_cu_context = cu_context;
if (cu_header_length) {
*cu_header_length = cu_context->cc_length;
@ -1915,6 +1906,24 @@ _dwarf_next_cu_header_internal(Dwarf_Debug dbg,
*error = 0;
}
}
if (cu_die_out) {
if (!local_cudie) {
/* This is safe since we know the
correct cu_context */
res = _dwarf_siblingof_internal(dbg,NULL,
cu_context, is_info,&local_cudie,error);
if (res != DW_DLV_OK) {
return res;
}
*cu_die_out = local_cudie;
} else {
*cu_die_out = local_cudie;
}
} else {
if (local_cudie) {
dwarf_dealloc_die(local_cudie);
}
}
return DW_DLV_OK;
}
@ -1964,14 +1973,7 @@ dwarf_die_from_hash_signature(Dwarf_Debug dbg,
Dwarf_Bool is_type_unit = FALSE;
int sres = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: calling dwarf_die_from_hash_signature()"
"Either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_die_from_hash_signature()");
sres = _dwarf_load_debug_info(dbg,error);
if (sres == DW_DLV_ERROR) {
return sres;
@ -2480,22 +2482,100 @@ is_cu_tag(int t)
we must be informed!. */
int
dwarf_siblingof_b(Dwarf_Debug dbg,
Dwarf_Die die,
Dwarf_Bool is_info,
Dwarf_Die die,
Dwarf_Bool is_info,
Dwarf_Die *caller_ret_die,
Dwarf_Error *error)
{
int res = 0;
Dwarf_CU_Context context = 0;
CHECK_DBG(dbg,error,"dwarf_siblingof_b()");
if (die) {
CHECK_DIE(die,DW_DLV_ERROR);
context = die->di_cu_context;
/* Ignore is_info passed-in, we have the correct
value in cu_context. */
is_info = die->di_cu_context->cc_is_info;
} else {
/* This is the pre-0.9.0 way, and is assuming
that the 'dis' has the correct cu context.
Which might not be true if a caller
used dwarf_next_cu_header_d() twice in a
row before calling dwarf_siblingof_b().
Use dwarf_next_cu_header_e() instead of
dwarf_next_cu_header_d() */
context = is_info? dbg->de_info_reading.de_cu_context:
dbg->de_types_reading.de_cu_context;
}
res = _dwarf_siblingof_internal(dbg,die,
context, is_info,caller_ret_die,error);
return res;
}
int
dwarf_siblingof_c(Dwarf_Die die,
Dwarf_Die * caller_ret_die, Dwarf_Error * error)
{
int res = 0;
Dwarf_Debug_InfoTypes dis = 0;
dis = is_info? &dbg->de_info_reading:
&dbg->de_types_reading;
Dwarf_Debug dbg = 0;
Dwarf_Bool is_info = FALSE;
CHECK_DIE(die,DW_DLV_ERROR);
dbg = die->di_cu_context->cc_dbg;
is_info = die->di_cu_context->cc_is_info;
res = _dwarf_siblingof_internal(dbg,die,
die?die->di_cu_context:dis->de_cu_context,
is_info,caller_ret_die,error);
die->di_cu_context, is_info,
caller_ret_die,error);
return res;
}
static int
dw_start_load_root_die(Dwarf_Debug dbg,
Dwarf_CU_Context context,
Dwarf_Bool is_info,
Dwarf_Small *dataptr,
Dwarf_Byte_Ptr *die_info_ptr,
Dwarf_Byte_Ptr *die_info_end,
Dwarf_Error *error)
{
/* Find root die of cu */
/* die_info_end is untouched here, need not be set in this
branch. */
Dwarf_Off off2 = 0;
Dwarf_Unsigned headerlen = 0;
Dwarf_Byte_Ptr cu_info_start = 0;
int cres = 0;
/* If we've not loaded debug_info
context will be NULL. */
if (!context) {
local_dealloc_cu_context(dbg,context);
_dwarf_error_string(dbg,error,
DW_DLE_DBG_NO_CU_CONTEXT,
"DW_DLE_DBG_NO_CU_CONTEXT:"
" Setting up a new CU failed loading root die");
return DW_DLV_ERROR;
}
off2 = context->cc_debug_offset;
cu_info_start = dataptr + off2;
cres = _dwarf_length_of_cu_header(dbg, off2,is_info,
&headerlen,error);
if (cres != DW_DLV_OK) {
return cres;
}
*die_info_ptr = cu_info_start + headerlen;
*die_info_end = _dwarf_calculate_info_section_end_ptr(context);
/* Recording the CU die pointer so we can later access
for special FORMs relating to .debug_str_offsets
and .debug_addr */
context->cc_cu_die_offset_present = TRUE;
context->cc_cu_die_global_sec_offset = off2 + headerlen;
return DW_DLV_OK;
}
static int
_dwarf_siblingof_internal(Dwarf_Debug dbg,
Dwarf_Die die,
@ -2517,7 +2597,7 @@ _dwarf_siblingof_internal(Dwarf_Debug dbg,
/* Since die may be NULL, we rely on the input argument. */
Dwarf_Small *dataptr = 0;
if (dbg == NULL) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
@ -2526,35 +2606,12 @@ _dwarf_siblingof_internal(Dwarf_Debug dbg,
if (!dataptr) {
return DW_DLV_NO_ENTRY;
}
if (die == NULL) {
/* Find root die of cu */
/* die_info_end is untouched here, need not be set in this
branch. */
Dwarf_Off off2 = 0;
Dwarf_Unsigned headerlen = 0;
int cres = 0;
/* If we've not loaded debug_info
context will be NULL. */
if (!context) {
local_dealloc_cu_context(dbg,context);
return DW_DLV_ERROR;
if (!die) {
dieres = dw_start_load_root_die(dbg,context,is_info,
dataptr,&die_info_ptr,&die_info_end,error);
if (dieres != DW_DLV_OK) {
return dieres;
}
off2 = context->cc_debug_offset;
cu_info_start = dataptr + off2;
cres = _dwarf_length_of_cu_header(dbg, off2,is_info,
&headerlen,error);
if (cres != DW_DLV_OK) {
return cres;
}
die_info_ptr = cu_info_start + headerlen;
die_info_end = _dwarf_calculate_info_section_end_ptr(context);
/* Recording the CU die pointer so we can later access
for special FORMs relating to .debug_str_offsets
and .debug_addr */
context->cc_cu_die_offset_present = TRUE;
context->cc_cu_die_global_sec_offset = off2 + headerlen;
} else {
/* Find sibling die. */
Dwarf_Bool has_child = false;
@ -2718,6 +2775,11 @@ _dwarf_siblingof_internal(Dwarf_Debug dbg,
return DW_DLV_NO_ENTRY;
}
if ((*die_info_ptr) == 0) {
/* We are not at the end of the section, but a
valid DIE will not start with a zero byte.
We will just assume it is a padding byte and is
not an error. An error report will appear
later if actually reading DIEs*/
return DW_DLV_NO_ENTRY;
}
ret_die = (Dwarf_Die) _dwarf_get_alloc(dbg, DW_DLA_DIE, 1);
@ -2730,7 +2792,6 @@ _dwarf_siblingof_internal(Dwarf_Debug dbg,
ret_die->di_debug_ptr = die_info_ptr;
ret_die->di_cu_context =
die == NULL ? context : die->di_cu_context;
dieres = _dwarf_leb128_uword_wrapper(dbg,
&die_info_ptr,die_info_end,&utmp,error);
if (dieres == DW_DLV_ERROR) {
@ -2987,12 +3048,7 @@ dwarf_offdie_b(Dwarf_Debug dbg,
Dwarf_Unsigned highest_code = 0;
struct Dwarf_Section_s * secdp = 0;
if (dbg == NULL) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"in call to dwarf_offdie_b()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_offdie_b()");
if (is_info) {
dis =&dbg->de_info_reading;
secdp = &dbg->de_debug_info;
@ -3021,9 +3077,12 @@ dwarf_offdie_b(Dwarf_Debug dbg,
a fresh section setup. */
section_size = secdp->dss_size;
do {
/* We do not want this to return cu_die as
we only want the last one to create DIE,
and that will be done just below. */
lres = _dwarf_create_a_new_cu_context_record_on_list(
dbg, dis,is_info,section_size,new_cu_offset,
&cu_context,error);
&cu_context,NULL,error);
if (lres != DW_DLV_OK) {
return lres;
}
@ -3158,10 +3217,17 @@ dwarf_get_real_section_name(Dwarf_Debug dbg,
Dwarf_Error *error)
{
unsigned i = 0;
char tbuf[100];
size_t std_sec_name_len = strlen(std_section_name);
char tbuf[100] = {0};
size_t std_sec_name_len = 0;
tbuf[0] = 0;
CHECK_DBG(dbg,error,"dwarf_get_real_section_name()");
if (!std_section_name || 0 == std_section_name[0]) {
_dwarf_error_string(dbg,error,DW_DLE_SECTION_NAME_BIG,
"DW_DLE_SECTION_NAME_BIG: Actually the "
"section name is empty, not big.");
return DW_DLV_ERROR;
}
std_sec_name_len = strlen(std_section_name);
/* std_section_name never has the .dwo on the end,
so allow for that and allow one (arbitrarily) more. */
if ((std_sec_name_len + 5) < sizeof(tbuf)) {
@ -3171,10 +3237,6 @@ dwarf_get_real_section_name(Dwarf_Debug dbg,
sizeof(tbuf)-std_sec_name_len,
".dwo",4);
}
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
for (i=0; i < dbg->de_debug_sections_total_entries; i++) {
struct Dwarf_dbg_sect_s *sdata = &dbg->de_debug_sections[i];
struct Dwarf_Section_s *section = sdata->ds_secdata;
@ -3228,10 +3290,7 @@ dwarf_get_die_section_name(Dwarf_Debug dbg,
{
struct Dwarf_Section_s *sec = 0;
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_die_section_name()");
if (is_info) {
sec = &dbg->de_debug_info;
} else {

5
src/lib/libdwarf/dwarf_dsc.c vendored
View File

@ -175,10 +175,7 @@ int dwarf_discr_list(Dwarf_Debug dbg,
Dwarf_Small * dscblockp = 0;
Dwarf_Unsigned dscblocklen = 0;
if (!dbg){
_dwarf_error(NULL, error, DW_DLE_DBG_NULL); \
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_discr_list()");
if (blocklen == 0) {
return DW_DLV_NO_ENTRY;
}

6
src/lib/libdwarf/dwarf_elf_load_headers.c vendored
View File

@ -1786,7 +1786,10 @@ elf_load_elf_header32(
res = generic_ehdr_from_32(ep,ehdr,&ehdr32,errcode);
if (res != DW_DLV_OK) {
free(ehdr);
return res;
}
ep->f_machine = ehdr->ge_machine;
ep->f_flags = ehdr->ge_flags;
return res;
}
static int
@ -1812,7 +1815,10 @@ elf_load_elf_header64(
res = generic_ehdr_from_64(ep,ehdr,&ehdr64,errcode);
if (res != DW_DLV_OK) {
free(ehdr);
return res;
}
ep->f_machine = ehdr->ge_machine;
ep->f_flags = ehdr->ge_flags;
return res;
}

2
src/lib/libdwarf/dwarf_elfread.c vendored
View File

@ -618,6 +618,8 @@ _dwarf_elf_nlsetup(int fd,
}
intfc = binary_interface->ai_object;
intfc->f_path = strdup(true_path);
(*dbg)->de_obj_machine = intfc->f_machine;
(*dbg)->de_obj_flags = intfc->f_flags;
return res;
}

2
src/lib/libdwarf/dwarf_elfread.h vendored
View File

@ -186,10 +186,12 @@ typedef struct elf_filedata_s {
int f_is_64bit;
unsigned f_endian;
Dwarf_Unsigned f_filesize;
Dwarf_Unsigned f_flags;
/* Elf size, not DWARF. 32 or 64 */
Dwarf_Small f_offsetsize;
Dwarf_Small f_pointersize;
int f_ftype;
int f_path_source;
Dwarf_Unsigned f_max_secdata_offset;
Dwarf_Unsigned f_max_progdata_offset;

4
src/lib/libdwarf/dwarf_error.c vendored
View File

@ -42,6 +42,7 @@
#include "libdwarf_private.h"
#include "dwarf_base_types.h"
#include "dwarf_opaque.h"
#include "dwarf_util.h"
#include "dwarf_alloc.h"
#include "dwarf_string.h"
#include "dwarf_error.h"
@ -84,7 +85,8 @@ dwarf_error_creation(Dwarf_Debug dbg,
char *errmsg)
{
dwarfstring m;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return;
}
dwarfstring_constructor(&m);

3
src/lib/libdwarf/dwarf_find_sigref.c vendored
View File

@ -146,7 +146,7 @@ _dwarf_find_CU_Context_given_sig(Dwarf_Debug dbg,
#endif /*0*/
lres = _dwarf_create_a_new_cu_context_record_on_list(
dbg, dis,is_info,section_size,new_cu_offset,
&cu_context,error);
&cu_context,NULL,error);
if (lres == DW_DLV_ERROR) {
return lres;
}
@ -183,6 +183,7 @@ dwarf_find_die_given_sig8(Dwarf_Debug dbg,
Dwarf_Error *error)
{
int res = 0;
CHECK_DBG(dbg,error,"dwarf_find_die_given_sig8()");
res = _dwarf_internal_find_die_given_sig8(
dbg,0,ref,die_out,is_info,error);
return res;

5
src/lib/libdwarf/dwarf_form.c vendored
View File

@ -119,7 +119,7 @@ get_attr_dbg(Dwarf_Debug *dbg_out,
return DW_DLV_ERROR;
}
dbg = cup->cc_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_ATTR_DBG_NULL,
"DW_DLE_ATTR_DBG_NULL: Stale or null Dwarf_Debug"
"in a Dwarf_CU_Context" );
@ -210,6 +210,7 @@ dwarf_uncompress_integer_block_a(Dwarf_Debug dbg,
Dwarf_Byte_Ptr endptr = (Dwarf_Byte_Ptr)input_block+
input_length_in_bytes;
CHECK_DBG(dbg,error,"dwarf_uncompress_integer_block_a()");
output_length_in_units = 0;
remain = (Dwarf_Signed)input_length_in_bytes;
ptr = input_block;
@ -1321,7 +1322,7 @@ dwarf_formflag(Dwarf_Attribute attr,
return DW_DLV_ERROR;
}
dbg = cu_context->cc_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_ATTR_DBG_NULL,
"DW_DLE_ATTR_DBG_NULL: dwarf_formflag() attribute"
" passed in has NULL or stale Dwarf_Debug pointer");

80
src/lib/libdwarf/dwarf_frame.c vendored
View File

@ -59,6 +59,7 @@
/* Dwarf_Unsigned is always 64 bits */
#define INVALIDUNSIGNED(x) ((x) & (((Dwarf_Unsigned)1) << 63))
/* Simply assumes error is a Dwarf_Error * in its context */
#define FDE_NULL_CHECKS_AND_SET_DBG(fde,dbg ) \
do { \
if ((fde) == NULL) { \
@ -66,16 +67,13 @@
return DW_DLV_ERROR; \
} \
(dbg)= (fde)->fd_dbg; \
if ((dbg) == NULL) { \
if (IS_INVALID_DBG((dbg))) { \
_dwarf_error_string(NULL, error, DW_DLE_FDE_DBG_NULL,\
"DW_DLE_FDE_DBG_NULL: An fde contains a stale "\
"Dwarf_Debug "); \
return DW_DLV_ERROR; \
} \
if ((dbg)->de_magic != DBG_IS_VALID) { \
_dwarf_error(NULL, error, DW_DLE_FDE_DBG_NULL);\
return DW_DLV_ERROR; \
} } while (0)
} while (0)
#define MIN(a,b) (((a) < (b))? (a):(b))
@ -182,6 +180,8 @@ dwarf_get_frame_section_name(Dwarf_Debug dbg,
Dwarf_Error *error)
{
struct Dwarf_Section_s *sec = 0;
CHECK_DBG(dbg,error,"dwarf_get_frame_section_name()");
if (error != NULL) {
*error = NULL;
}
@ -200,6 +200,8 @@ dwarf_get_frame_section_name_eh_gnu(Dwarf_Debug dbg,
Dwarf_Error *error)
{
struct Dwarf_Section_s *sec = 0;
CHECK_DBG(dbg,error,"dwarf_get_frame_section_name_eh_gnu()");
if (error != NULL) {
*error = NULL;
}
@ -1978,12 +1980,8 @@ dwarf_get_fde_list_eh(Dwarf_Debug dbg,
Dwarf_Error * error)
{
int res = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_fde_list_eh()");
res = _dwarf_load_section(dbg,
&dbg->de_debug_frame_eh_gnu,error);
if (res != DW_DLV_OK) {
@ -2018,13 +2016,7 @@ dwarf_get_fde_list(Dwarf_Debug dbg,
{
int res = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: dwarf_get_fde_list: "
"Either null Dwarf_Debug or it is"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_fde_list()");
res = _dwarf_load_section(dbg, &dbg->de_debug_frame,error);
if (res != DW_DLV_OK) {
return res;
@ -2074,13 +2066,7 @@ dwarf_get_fde_for_die(Dwarf_Debug dbg,
struct cie_fde_prefix_s prefix;
struct cie_fde_prefix_s prefix_c;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: in dwarf_get_fde_for_die(): "
"Either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_fde_for_die()");
if (!die ) {
_dwarf_error_string(NULL, error, DW_DLE_DIE_NULL,
"DW_DLE_DIE_NUL: in dwarf_get_fde_for_die(): "
@ -2254,11 +2240,7 @@ dwarf_get_fde_range(Dwarf_Fde fde,
}
dbg = fde->fd_dbg;
if (dbg == NULL) {
_dwarf_error(NULL, error, DW_DLE_FDE_DBG_NULL);
return DW_DLV_ERROR;
}
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_FDE_DBG_NULL,
"DW_DLE_FDE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");
@ -2298,7 +2280,7 @@ dwarf_get_fde_exception_info(Dwarf_Fde fde,
Dwarf_Debug dbg;
dbg = fde->fd_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_FDE_DBG_NULL,
"DW_DLE_FDE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");
@ -2335,7 +2317,7 @@ dwarf_get_cie_info_b(Dwarf_Cie cie,
return DW_DLV_ERROR;
}
dbg = cie->ci_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_CIE_DBG_NULL,
"DW_DLE_CIE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");
@ -2388,7 +2370,7 @@ _dwarf_get_fde_info_for_a_pc_row(Dwarf_Fde fde,
}
dbg = fde->fd_dbg;
if (dbg == NULL) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error(NULL, error, DW_DLE_FDE_DBG_NULL);
return DW_DLV_ERROR;
}
@ -2472,10 +2454,12 @@ _dwarf_get_fde_info_for_a_pc_row(Dwarf_Fde fde,
}
int
dwarf_get_fde_info_for_all_regs3(Dwarf_Fde fde,
dwarf_get_fde_info_for_all_regs3_b(Dwarf_Fde fde,
Dwarf_Addr pc_requested,
Dwarf_Regtable3 * reg_table,
Dwarf_Addr * row_pc,
Dwarf_Bool * has_more_rows,
Dwarf_Addr * subsequent_pc,
Dwarf_Error * error)
{
@ -2522,7 +2506,7 @@ dwarf_get_fde_info_for_all_regs3(Dwarf_Fde fde,
res = _dwarf_get_fde_info_for_a_pc_row(fde, pc_requested,
&fde_table,
dbg->de_frame_cfa_col_number,
NULL,NULL,
has_more_rows,subsequent_pc,
error);
if (res != DW_DLV_OK) {
free(reg_table_i.rt3_rules);
@ -2587,6 +2571,19 @@ dwarf_get_fde_info_for_all_regs3(Dwarf_Fde fde,
return DW_DLV_OK;
}
int
dwarf_get_fde_info_for_all_regs3(Dwarf_Fde fde,
Dwarf_Addr pc_requested,
Dwarf_Regtable3 * reg_table,
Dwarf_Addr * row_pc,
Dwarf_Error * error)
{
int res = dwarf_get_fde_info_for_all_regs3_b(fde,pc_requested,
reg_table,row_pc,NULL,NULL,error);
return res;
}
/* Table_column DW_FRAME_CFA_COL is not meaningful.
Use dwarf_get_fde_info_for_cfa_reg3_b() to get the CFA.
Call dwarf_set_frame_cfa_value() to set the correct column
@ -2659,7 +2656,7 @@ dwarf_get_fde_info_for_reg3_c(Dwarf_Fde fde,
int res = DW_DLV_ERROR;
Dwarf_Debug dbg = 0;
int table_real_data_size = 0;
Dwarf_Unsigned table_real_data_size = 0;
FDE_NULL_CHECKS_AND_SET_DBG(fde, dbg);
@ -2835,7 +2832,7 @@ dwarf_get_fde_instr_bytes(Dwarf_Fde inFde,
return DW_DLV_ERROR;
}
dbg = inFde->fd_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_FDE_DBG_NULL,
"DW_DLE_FDE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");
@ -3100,7 +3097,6 @@ dwarf_get_frame_instruction_a(Dwarf_Frame_Instr_Head head,
The dwarf_ version is preferred over the obsolete _dwarf version.
_dwarf version kept for compatibility.
*/
/* ARGSUSED 4 */
int
_dwarf_fde_section_offset(Dwarf_Debug dbg, Dwarf_Fde in_fde,
Dwarf_Off * fde_off, Dwarf_Off * cie_off,
@ -3109,7 +3105,6 @@ _dwarf_fde_section_offset(Dwarf_Debug dbg, Dwarf_Fde in_fde,
return dwarf_fde_section_offset(dbg,in_fde,fde_off,
cie_off,error);
}
/* ARGSUSED 4 */
int
dwarf_fde_section_offset(Dwarf_Debug dbg, Dwarf_Fde in_fde,
Dwarf_Off * fde_off, Dwarf_Off * cie_off,
@ -3118,6 +3113,7 @@ dwarf_fde_section_offset(Dwarf_Debug dbg, Dwarf_Fde in_fde,
char *start = 0;
char *loc = 0;
CHECK_DBG(dbg,error,"dwarf_fde_section_offset()");
if (!in_fde) {
_dwarf_error(dbg, error, DW_DLE_FDE_NULL);
return DW_DLV_ERROR;
@ -3135,14 +3131,13 @@ dwarf_fde_section_offset(Dwarf_Debug dbg, Dwarf_Fde in_fde,
The dwarf_ version is preferred over the obsolete _dwarf version.
_dwarf version kept for compatibility.
*/
/* ARGSUSED 4 */
int
_dwarf_cie_section_offset(Dwarf_Debug dbg, Dwarf_Cie in_cie,
Dwarf_Off * cie_off, Dwarf_Error * error)
{
return dwarf_cie_section_offset(dbg,in_cie,cie_off,error);
}
/* ARGSUSED 4 */
int
dwarf_cie_section_offset(Dwarf_Debug dbg, Dwarf_Cie in_cie,
Dwarf_Off * cie_off, Dwarf_Error * error)
@ -3150,6 +3145,7 @@ dwarf_cie_section_offset(Dwarf_Debug dbg, Dwarf_Cie in_cie,
char *start = 0;
char *loc = 0;
CHECK_DBG(dbg,error,"dwarf_cie_section_offset()");
if (!in_cie) {
_dwarf_error(dbg, error, DW_DLE_CIE_NULL);
return DW_DLV_ERROR;
@ -3405,7 +3401,7 @@ _dwarf_frame_constructor(Dwarf_Debug dbg, void *frame)
{
struct Dwarf_Frame_s *fp = frame;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_ERROR;
}
return init_reg_rules_alloc(dbg,fp,

11
src/lib/libdwarf/dwarf_gdbindex.c vendored
View File

@ -183,14 +183,7 @@ dwarf_gdbindex_header(Dwarf_Debug dbg,
Dwarf_Small *startdata = 0;
Dwarf_Unsigned version_in = 0;
if (!dbg) {
_dwarf_error_string(NULL, error,
DW_DLE_GDB_INDEX_INDEX_ERROR,
"DW_DLE_GDB_INDEX_INDEX_ERROR:"
" passed in NULL Dwarf_Debut to"
" dwarf_gdbindex_header");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_gdbindex_header()");
if (!dbg->de_debug_gdbindex.dss_size) {
return DW_DLV_NO_ENTRY;
}
@ -805,7 +798,7 @@ dwarf_gdbindex_string_by_offset(Dwarf_Gdbindex gdbindexptr,
return DW_DLV_ERROR;
}
dbg = gdbindexptr->gi_dbg;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
emit_no_value_msg(NULL,DW_DLE_GDB_INDEX_INDEX_ERROR,
"DW_DLE_GDB_INDEX_INDEX_ERROR: "
"The gdbindex Dwarf_Debug in"

34
src/lib/libdwarf/dwarf_generic_init.c vendored
View File

@ -85,6 +85,7 @@ dwarf_init_path_dl(path true_path and globals, dbg1
#include "libdwarf.h"
#include "libdwarf_private.h"
#include "dwarf_base_types.h"
#include "dwarf_util.h"
#include "dwarf_opaque.h"
#include "dwarf_alloc.h"
#include "dwarf_error.h"
@ -223,6 +224,27 @@ dwarf_init_path_dl(const char *path,
dl_path_count,path_source,error);
return res;
}
#if 0
/* for debugging */
static void
dump_header_fields(const char *w,Dwarf_Debug dbg)
{
printf("dadebug dumping certain fields of %s\n",w);
printf("ftype : %d\n",dbg->de_ftype);
printf("machine : %llu\n",dbg->de_obj_machine);
printf("flags : 0x%llx\n",dbg->de_obj_flags);
printf("pointer size : %u\n",dbg->de_pointer_size);
printf("big_endian? : %u\n",dbg->de_big_endian_object);
printf("ubcount : %u\n",dbg->de_universalbinary_count);
printf("ubindex : %u\n",dbg->de_universalbinary_index);
printf("ub offset : %llu\n",dbg->de_obj_ub_offset);
printf("path source : %u\n",dbg->de_path_source);
printf("comdat group# : %u\n",dbg->de_groupnumber);
exit(0);
}
#endif
int
dwarf_init_path_dl_a(const char *path,
char * true_path_out_buffer,
@ -343,6 +365,7 @@ dwarf_init_path_dl_a(const char *path,
}
final_common_settings(dbg,file_path,fd,
lpath_source,path_source,error);
dbg->de_ftype = ftype;
*ret_dbg = dbg;
return res;
}
@ -359,6 +382,7 @@ dwarf_init_path_dl_a(const char *path,
}
final_common_settings(dbg,file_path,fd,
lpath_source,path_source,error);
dbg->de_ftype = ftype;
*ret_dbg = dbg;
return res;
}
@ -373,6 +397,7 @@ dwarf_init_path_dl_a(const char *path,
}
final_common_settings(dbg,file_path,fd,
lpath_source,path_source,error);
dbg->de_ftype = ftype;
*ret_dbg = dbg;
return res;
}
@ -479,7 +504,7 @@ dwarf_init_b(int fd,
int
dwarf_finish(Dwarf_Debug dbg)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_free_static_errlist();
return DW_DLV_OK;
}
@ -536,9 +561,8 @@ dwarf_set_tied_dbg(Dwarf_Debug dbg,
Dwarf_Debug tieddbg,
Dwarf_Error*error)
{
if (!dbg) {
DWARF_DBG_ERROR(NULL, DW_DLE_DBG_NULL, DW_DLV_ERROR);
}
CHECK_DBG(dbg,error,"dwarf_set_tied_dbg()");
dbg->de_tied_data.td_tied_object = tieddbg;
if (tieddbg) {
tieddbg->de_tied_data.td_is_tied_object = TRUE;
@ -551,7 +575,7 @@ int
dwarf_get_tied_dbg(Dwarf_Debug dbg, Dwarf_Debug *tieddbg_out,
Dwarf_Error*error)
{
(void)error;
CHECK_DBG(dbg,error,"dwarf_get_tied_dbg()");
*tieddbg_out = dbg->de_tied_data.td_tied_object;
return DW_DLV_OK;
}

61
src/lib/libdwarf/dwarf_global.c vendored
View File

@ -647,7 +647,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
a few lines above. */
Dwarf_Unsigned context_count = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"calling for pubnames-like data Dwarf_Debug "
@ -714,6 +714,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
return DW_DLV_ERROR;
}
@ -726,6 +727,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return mres;
}
@ -745,6 +747,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
return DW_DLV_ERROR;
}
@ -778,6 +781,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return DW_DLV_ERROR;
}
@ -789,6 +793,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return mres;
}
@ -801,6 +806,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
_dwarf_error(dbg, error, version_err_num);
return DW_DLV_ERROR;
@ -817,6 +823,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return DW_DLV_ERROR;
}
@ -830,6 +837,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return mres;
}
@ -850,6 +858,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return mres;
}
@ -861,6 +870,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
_dwarf_error(dbg, error, length_err_num);
return DW_DLV_ERROR;
@ -878,6 +888,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
return mres;
}
@ -890,6 +901,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
*out_phead_chain = 0;
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
_dwarf_error(dbg, error, length_err_num);
return DW_DLV_ERROR;
@ -927,6 +939,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
return res;
}
@ -935,7 +948,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
/* The section is empty.
Nowhere to record pubnames_context); */
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
/* pubnames_context = 0; reset at top of loop */
continue;
}
}
@ -958,6 +971,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
return res;
}
@ -983,6 +997,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
return res;
}
@ -1000,6 +1015,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
return DW_DLV_ERROR;
}
@ -1014,6 +1030,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,
context_DLA_code);
pubnames_context = 0;
}
dealloc_globals_chain(dbg,*out_phead_chain);
*out_phead_chain = 0;
@ -1045,6 +1062,7 @@ _dwarf_internal_get_pubnames_like(Dwarf_Debug dbg,
_dwarf_error(dbg, error, length_err_num);
if (!pubnames_context_on_list) {
dwarf_dealloc(dbg,pubnames_context,context_DLA_code);
pubnames_context = 0;
}
dealloc_globals_chain(dbg,*out_phead_chain);
*out_phead_chain = 0;
@ -1136,6 +1154,7 @@ dwarf_globals_by_type(Dwarf_Debug dbg,
segfault! */
*contents = 0;
*ret_count = 0;
CHECK_DBG(dbg,error,"dwarf_globals_by_type()");
switch(requested_section){
case DW_GL_GLOBALS:
section = &dbg->de_debug_pubnames;
@ -1237,6 +1256,8 @@ dwarf_get_globals(Dwarf_Debug dbg,
Dwarf_Error *error)
{
int res = 0;
CHECK_DBG(dbg,error,"dwarf_get_globals()");
res = dwarf_globals_by_type(dbg,
DW_GL_GLOBALS,ret_globals,return_count,error);
return res;
@ -1254,6 +1275,7 @@ dwarf_get_pubtypes(Dwarf_Debug dbg,
Dwarf_Error *error)
{
int res = 0;
CHECK_DBG(dbg,error,"dwarf_get_pubtypes()");
res = dwarf_globals_by_type(dbg,
DW_GL_PUBTYPES,types,return_count,error);
return res;
@ -1280,6 +1302,9 @@ _dwarf_internal_globals_dealloc(Dwarf_Debug dbg,
struct Dwarf_Global_Context_s *glcp = 0;
struct Dwarf_Global_Context_s *lastglcp = 0;
if (IS_INVALID_DBG(dbg)) {
return;
}
if (!dwgl) {
return;
}
@ -1363,7 +1388,9 @@ dwarf_global_cu_offset(Dwarf_Global global,
}
con = global->gl_context;
if (con == NULL) {
_dwarf_error(NULL, error, DW_DLE_GLOBAL_CONTEXT_NULL);
_dwarf_error_string(NULL, error, DW_DLE_GLOBAL_CONTEXT_NULL,
"DW_DLE_GLOBAL_CONTEXT_NULL in call of "
"dwarf_global_cu_offset()");
return DW_DLV_ERROR;
}
*cu_header_offset = con->pu_offset_of_cu_header;
@ -1422,7 +1449,9 @@ dwarf_global_name_offsets(Dwarf_Global global,
con = global->gl_context;
if (con == NULL) {
_dwarf_error(NULL, error, DW_DLE_GLOBAL_CONTEXT_NULL);
_dwarf_error_string(NULL, error, DW_DLE_GLOBAL_CONTEXT_NULL,
"DW_DLE_GLOBAL_CONTEXT_NULL in call of "
"dwarf_global_name_offsets()");
return DW_DLV_ERROR;
}
@ -1437,12 +1466,7 @@ dwarf_global_name_offsets(Dwarf_Global global,
with 2 million pubnames entries. */
#define MIN_CU_HDR_SIZE 10
dbg = con->pu_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_global_name_offsets()");
/* Cannot refer to debug_types, see p141 of
DWARF4 Standard */
if (dbg->de_debug_info.dss_size &&
@ -1544,14 +1568,7 @@ dwarf_get_globals_header(Dwarf_Global global,
return DW_DLV_ERROR;
}
dbg = con->pu_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"calling dwarf_get_globals_header() "
"either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_globals_header()");
if (category) {
*category = con->pu_global_category;
}
@ -1609,7 +1626,7 @@ dwarf_get_cu_die_offset_given_cu_header_offset_b(Dwarf_Debug dbg,
Dwarf_Off headerlen = 0;
int cres = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: "
"calling dwarf_get_cu_die_offset_given"
@ -1652,9 +1669,11 @@ dwarf_CU_dieoffset_given_die(Dwarf_Die die,
return DW_DLV_OK;
}
int dwarf_return_empty_pubnames(Dwarf_Debug dbg, int flag)
/* Just sets a flag in dbg record if it can. */
int
dwarf_return_empty_pubnames(Dwarf_Debug dbg, int flag)
{
if (dbg == NULL) {
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_OK;
}
if (flag && flag != 1) {

13
src/lib/libdwarf/dwarf_gnu_index.c vendored
View File

@ -138,7 +138,7 @@ get_pubxx_fields(Dwarf_Debug dbg,
int *errnum_out,
const char **errstr_out)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return;
}
if (for_gnu_pubnames) {
@ -569,12 +569,7 @@ dwarf_get_gnu_index_head(Dwarf_Debug dbg,
struct Dwarf_Gnu_IBlock_s *iblock_array = 0;
int res = 0;
if (!dbg) {
_dwarf_error_string(dbg,error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: in "
"dwarf_get_gnu_index_head");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_gnu_index_head()");
res = load_pub_section(dbg,for_gnu_pubnames,error);
if (res != DW_DLV_OK) {
return res;
@ -661,12 +656,12 @@ _dwarf_free_gnu_index_head_content(Dwarf_Gnu_Index_Head head)
void
dwarf_gnu_index_dealloc(Dwarf_Gnu_Index_Head head)
{
Dwarf_Debug dbg;
Dwarf_Debug dbg = 0;
if (!head) {
return;
}
dbg = head->gi_dbg;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return;
}
_dwarf_free_gnu_index_head_content(head);

13
src/lib/libdwarf/dwarf_groups.c vendored
View File

@ -44,6 +44,7 @@
#include "libdwarf_private.h"
#include "dwarf_base_types.h"
#include "dwarf_opaque.h"
#include "dwarf_util.h"
#include "dwarf_error.h"
#include "dwarf_tsearch.h"
@ -186,16 +187,18 @@ _dwarf_section_get_target_group_from_map(Dwarf_Debug dbg,
/* New May 2017. So users can find out what groups (dwo or COMDAT)
are in the object and how much to allocate so one can get the
group-section map data. */
int dwarf_sec_group_sizes(Dwarf_Debug dbg,
int
dwarf_sec_group_sizes(Dwarf_Debug dbg,
Dwarf_Unsigned * section_count_out,
Dwarf_Unsigned * group_count_out,
Dwarf_Unsigned * selected_group_out,
Dwarf_Unsigned * map_entry_count_out,
Dwarf_Error * error)
{
struct Dwarf_Group_Data_s *grp = &dbg->de_groupnumbers;
struct Dwarf_Group_Data_s *grp = 0;
(void)error;
CHECK_DBG(dbg,error,"dwarf_sec_group_sizes()");
grp = &dbg->de_groupnumbers;
*section_count_out = grp->gd_number_of_sections;
*group_count_out = grp->gd_number_of_groups;
*selected_group_out = dbg->de_groupnumber;
@ -258,7 +261,8 @@ map_sort_compar(const void*l, const void*r)
values and this function fills in the array entries.
Output ordered by group number and section number.
*/
int dwarf_sec_group_map(Dwarf_Debug dbg,
int
dwarf_sec_group_map(Dwarf_Debug dbg,
Dwarf_Unsigned map_entry_count,
Dwarf_Unsigned * group_numbers_array,
Dwarf_Unsigned * sec_numbers_array,
@ -268,6 +272,7 @@ int dwarf_sec_group_map(Dwarf_Debug dbg,
Dwarf_Unsigned i = 0;
struct Dwarf_Group_Data_s *grp = 0;
CHECK_DBG(dbg,error,"dwarf_sec_group_map()");
if (temp_map_data) {
_dwarf_error(dbg,error,DW_DLE_GROUP_INTERNAL_ERROR);
return DW_DLV_ERROR;

40
src/lib/libdwarf/dwarf_harmless.c vendored
View File

@ -67,6 +67,7 @@
#include "dwarf_base_types.h"
#include "dwarf_safe_strcpy.h"
#include "dwarf_opaque.h"
#include "dwarf_util.h"
#include "dwarf_frame.h"
#include "dwarf_harmless.h"
@ -76,12 +77,19 @@
/* The pointers returned here through errmsg_ptrs_array
become invalidated by any call to libdwarf. Any call.
*/
int dwarf_get_harmless_error_list(Dwarf_Debug dbg,
int
dwarf_get_harmless_error_list(Dwarf_Debug dbg,
unsigned count,
const char ** errmsg_ptrs_array,
unsigned * errs_count)
{
struct Dwarf_Harmless_s *dhp = &dbg->de_harmless_errors;
struct Dwarf_Harmless_s *dhp = 0;
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_NO_ENTRY;
}
dhp = &dbg->de_harmless_errors;
if (!dhp->dh_errors) {
dhp->dh_errs_count = 0;
return DW_DLV_NO_ENTRY;
@ -120,13 +128,20 @@ int dwarf_get_harmless_error_list(Dwarf_Debug dbg,
/* Insertion made public is only for testing the harmless error code,
it is not necessarily useful for libdwarf client code aside
from code testing libdwarf. */
void dwarf_insert_harmless_error(Dwarf_Debug dbg,
void
dwarf_insert_harmless_error(Dwarf_Debug dbg,
char *newerror)
{
struct Dwarf_Harmless_s *dhp = &dbg->de_harmless_errors;
struct Dwarf_Harmless_s *dhp = 0;
unsigned next = 0;
unsigned cur = dhp->dh_next_to_use;
char *msgspace;
unsigned cur = 0;
char *msgspace = 0;
if (IS_INVALID_DBG(dbg)) {
return;
}
dhp = &dbg->de_harmless_errors;
cur = dhp->dh_next_to_use;
if (!dhp->dh_errors) {
dhp->dh_errs_count++;
return;
@ -155,11 +170,18 @@ void dwarf_insert_harmless_error(Dwarf_Debug dbg,
Remember the maxcount we record is 1 > the user count,
so we adjust it so it looks like the user count.
*/
unsigned dwarf_set_harmless_error_list_size(Dwarf_Debug dbg,
unsigned
dwarf_set_harmless_error_list_size(Dwarf_Debug dbg,
unsigned maxcount )
{
struct Dwarf_Harmless_s *dhp = &dbg->de_harmless_errors;
unsigned prevcount = dhp->dh_maxcount;
struct Dwarf_Harmless_s *dhp = 0;
unsigned prevcount = 0;
if (IS_INVALID_DBG(dbg)) {
return 0;
}
dhp = &dbg->de_harmless_errors;
prevcount = dhp->dh_maxcount;
if (maxcount != 0) {
++maxcount;
if (maxcount != dhp->dh_maxcount) {

166
src/lib/libdwarf/dwarf_init_finish.c vendored
View File

@ -1,7 +1,7 @@
/*
Copyright (C) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
Portions Copyright (C) 2008-2010 Arxan Technologies, Inc. All Rights Reserved.
Portions Copyright (C) 2009-2022 David Anderson. All Rights Reserved.
Portions Copyright (C) 2009-2023 David Anderson. All Rights Reserved.
Portions Copyright (C) 2010-2012 SN Systems Ltd. All Rights Reserved.
This program is free software; you can redistribute it
@ -53,10 +53,8 @@
#include "dwarf_secname_ck.h"
#include "dwarf_setup_sections.h"
#ifdef HAVE_ZLIB_H
#if defined(HAVE_ZLIB_H) && defined(HAVE_ZSTD_H)
#include "zlib.h"
#endif
#ifdef HAVE_ZSTD_H
#include "zstd.h"
#endif
@ -713,7 +711,6 @@ _dwarf_setup(Dwarf_Debug dbg, Dwarf_Error * error)
dbg->de_assume_string_in_bounds =
_dwarf_assume_string_in_bounds;
/* First make an arbitrary assumption. */
dbg->de_same_endian = 1;
dbg->de_copy_word = _dwarf_memcpy_noswap_bytes;
obj = dbg->de_obj_file;
endianness = obj->ai_methods->om_get_byte_order(obj->ai_object);
@ -721,14 +718,12 @@ _dwarf_setup(Dwarf_Debug dbg, Dwarf_Error * error)
#ifdef WORDS_BIGENDIAN
dbg->de_big_endian_object = 1;
if (endianness == DW_END_little) {
dbg->de_same_endian = 0;
dbg->de_big_endian_object = 0;
dbg->de_copy_word = _dwarf_memcpy_swap_bytes;
}
#else /* little endian */
dbg->de_big_endian_object = 0;
if (endianness == DW_END_big ) {
dbg->de_same_endian = 0;
dbg->de_big_endian_object = 1;
dbg->de_copy_word = _dwarf_memcpy_swap_bytes;
}
@ -1029,7 +1024,7 @@ dwarf_object_init_b(Dwarf_Obj_Access_Interface_a* obj,
Filesize is to set up a sensible default hash tree
size. */
dbg = _dwarf_get_debug(filesize);
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
DWARF_DBG_ERROR(dbg, DW_DLE_DBG_ALLOC, DW_DLV_ERROR);
}
dbg->de_errhand = errhand;
@ -1129,7 +1124,7 @@ int
dwarf_object_finish(Dwarf_Debug dbg)
{
int res = 0;
/* do not use CHECK_DBG */
_dwarf_harmless_cleanout(&dbg->de_harmless_errors);
res = _dwarf_free_all_of_one_debug(dbg);
/* see dwarf_error.h dwarf_error.c Relevant
@ -1138,7 +1133,7 @@ dwarf_object_finish(Dwarf_Debug dbg)
return res;
}
#if defined(HAVE_ZLIB) || defined(HAVE_ZSTD)
#if defined(HAVE_ZLIB) && defined(HAVE_ZSTD)
/* case 1:
The input stream is assumed to contain
the four letters
@ -1253,7 +1248,6 @@ do_decompress(Dwarf_Debug dbg,
" The compressed section is not properly formatted");
return DW_DLV_ERROR;
}
#ifdef HAVE_ZLIB
if (!zstdcompress) {
/* According to zlib.net zlib essentially never expands
the data when compressing. There is no statement
@ -1297,16 +1291,6 @@ do_decompress(Dwarf_Debug dbg,
return DW_DLV_ERROR;
}
}
#else /* !HAVE_ZLIB */
if (!zstdcompress) {
_dwarf_error_string(dbg, error,
DW_DLE_ZDEBUG_REQUIRES_ZLIB,
"DW_DLE_ZDEBUG_REQUIRES_ZLIB: "
" zlib is missing, cannot decomreess a zlib section");
return DW_DLV_ERROR;
}
#endif /* HAVE_ZLIB */
#ifdef HAVE_ZSTD
if (zstdcompress) {
/* According to zlib.net zlib essentially never expands
the data when compressing. There is no statement
@ -1350,15 +1334,6 @@ do_decompress(Dwarf_Debug dbg,
return DW_DLV_ERROR;
}
}
#else /* !HAVE_ZSTD */
if (zstdcompress) {
_dwarf_error_string(dbg, error,
DW_DLE_ZDEBUG_REQUIRES_ZLIB,
"DW_DLE_ZDEBUG_REQUIRES_ZLIB: "
" zstd is missing, cannot decomreess a libzstd section");
return DW_DLV_ERROR;
}
#endif /* HAVE_ZSTD */
if ((src +srclen) > endsection) {
_dwarf_error_string(dbg, error,
DW_DLE_ZLIB_SECTION_SHORT,
@ -1379,7 +1354,6 @@ do_decompress(Dwarf_Debug dbg,
return DW_DLV_ERROR;
}
/* uncompress is a zlib function. */
#ifdef HAVE_ZLIB
if (!zstdcompress) {
int res = 0;
uLongf dlen = destlen;
@ -1398,8 +1372,6 @@ do_decompress(Dwarf_Debug dbg,
DW_DLV_ERROR);
}
}
#endif /* HAVE_ZLIB */
#ifdef HAVE_ZSTD
if (zstdcompress) {
size_t zsize =
ZSTD_decompress(dest,destlen,src,srclen);
@ -1412,7 +1384,6 @@ do_decompress(Dwarf_Debug dbg,
return DW_DLV_ERROR;
}
}
#endif /* HAVE_ZSTD */
/* Z_OK */
section->dss_data = dest;
section->dss_size = destlen;
@ -1420,7 +1391,7 @@ do_decompress(Dwarf_Debug dbg,
section->dss_did_decompress = TRUE;
return DW_DLV_OK;
}
#endif /* HAVE_ZLIB || HAVE_ZSTD */
#endif /* HAVE_ZLIB && HAVE_ZSTD */
/* Load the ELF section with the specified index and set its
dss_data pointer to the memory where it was loaded. */
@ -1488,19 +1459,19 @@ _dwarf_load_section(Dwarf_Debug dbg,
DWARF_DBG_ERROR(dbg, DW_DLE_COMPRESSED_EMPTY_SECTION,
DW_DLV_ERROR);
}
#if defined(HAVE_ZLIB) || defined(HAVE_ZSTD)
#if defined(HAVE_ZLIB) && defined(HAVE_ZSTD)
res = do_decompress(dbg,section,error);
if (res != DW_DLV_OK) {
return res;
}
#else
#else /* !defined(HAVE_ZLIB) && defined(HAVE_ZSTD) */
_dwarf_error_string(dbg, error,
DW_DLE_ZDEBUG_REQUIRES_ZLIB,
"DW_DLE_ZDEBUG_REQUIRES_ZLIB: "
" zlib and zstd are missing, cannot"
" decompress section.");
return DW_DLV_ERROR;
#endif
#endif /* defined(HAVE_ZLIB) && defined(HAVE_ZSTD) */
section->dss_did_decompress = TRUE;
}
if (_dwarf_apply_relocs == 0) {
@ -1552,6 +1523,9 @@ dwarf_get_section_max_offsets_d(Dwarf_Debug dbg,
Dwarf_Unsigned * debug_loclists_size,
Dwarf_Unsigned * debug_rnglists_size)
{
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_NO_ENTRY;
}
if (debug_info_size) {
*debug_info_size = dbg->de_debug_info.dss_size;
}
@ -1623,26 +1597,46 @@ dwarf_get_section_info_by_name(Dwarf_Debug dbg,
Dwarf_Addr *section_addr,
Dwarf_Unsigned *section_size,
Dwarf_Error * error)
{
return dwarf_get_section_info_by_name_a(dbg,
section_name,
section_addr,
section_size,
0,0,
error);
}
int
dwarf_get_section_info_by_name_a(Dwarf_Debug dbg,
const char *section_name,
Dwarf_Addr *section_addr,
Dwarf_Unsigned *section_size,
Dwarf_Unsigned *section_flags,
Dwarf_Unsigned *section_offset,
Dwarf_Error * error)
{
struct Dwarf_Obj_Access_Interface_a_s * obj = 0;
Dwarf_Unsigned section_count = 0;
Dwarf_Unsigned section_index = 0;
struct Dwarf_Obj_Access_Section_a_s doas;
*section_addr = 0;
*section_size = 0;
if (!dbg) {
_dwarf_error_string(dbg,error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: null dbg passed to "
"dwarf_get_section_info_by_name");
return DW_DLV_ERROR;
CHECK_DBG(dbg,error,"dwarf_get_section_info_by_name_a()");
if (section_addr) {
*section_addr = 0;
}
if (section_size) {
*section_size = 0;
}
if (section_flags) {
*section_flags = 0;
}
if (section_offset) {
*section_offset = 0;
}
if (!section_name) {
_dwarf_error_string(dbg,error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: null section_name pointer "
"passed to "
"dwarf_get_section_info_by_name");
"dwarf_get_section_info_by_name_a");
return DW_DLV_ERROR;
}
if (!section_name[0]) {
@ -1674,8 +1668,18 @@ dwarf_get_section_info_by_name(Dwarf_Debug dbg,
continue;
}
if (!strcmp(section_name,doas.as_name)) {
*section_addr = doas.as_addr;
*section_size = doas.as_size;
if (section_addr) {
*section_addr = doas.as_addr;
}
if (section_size) {
*section_size = doas.as_size;
}
if (section_flags) {
*section_flags = doas.as_flags;
}
if (section_offset) {
*section_offset = doas.as_offset;
}
return DW_DLV_OK;
}
}
@ -1691,10 +1695,41 @@ dwarf_get_section_info_by_index(Dwarf_Debug dbg,
Dwarf_Unsigned *section_size,
Dwarf_Error * error)
{
*section_addr = 0;
*section_size = 0;
*section_name = NULL;
return dwarf_get_section_info_by_index_a(dbg,
section_index,
section_name,
section_addr,
section_size,
0,0,
error);
}
int
dwarf_get_section_info_by_index_a(Dwarf_Debug dbg,
int section_index,
const char **section_name,
Dwarf_Addr *section_addr,
Dwarf_Unsigned *section_size,
Dwarf_Unsigned *section_flags,
Dwarf_Unsigned *section_offset,
Dwarf_Error * error)
{
CHECK_DBG(dbg,error,"dwarf_get_section_info_by_index_a()");
if (section_addr) {
*section_addr = 0;
}
if (section_size) {
*section_size = 0;
}
if (section_name) {
*section_name = 0;
}
if (section_flags) {
*section_flags = 0;
}
if (section_offset) {
*section_offset = 0;
}
/* Check if we have a valid section index */
if (section_index >= 0 && section_index <
dwarf_get_section_count(dbg)) {
@ -1712,9 +1747,21 @@ dwarf_get_section_info_by_index(Dwarf_Debug dbg,
DWARF_DBG_ERROR(dbg, err, DW_DLV_ERROR);
}
*section_addr = doas.as_addr;
*section_size = doas.as_size;
*section_name = doas.as_name;
if (section_addr) {
*section_addr = doas.as_addr;
}
if (section_size) {
*section_size = doas.as_size;
}
if (section_name) {
*section_name = doas.as_name;
}
if (section_flags) {
*section_flags = doas.as_flags;
}
if (section_offset) {
*section_offset = doas.as_offset;
}
return DW_DLV_OK;
}
return DW_DLV_NO_ENTRY;
@ -1724,8 +1771,13 @@ dwarf_get_section_info_by_index(Dwarf_Debug dbg,
int
dwarf_get_section_count(Dwarf_Debug dbg)
{
struct Dwarf_Obj_Access_Interface_a_s * obj = dbg->de_obj_file;
if (NULL == obj) {
struct Dwarf_Obj_Access_Interface_a_s * obj = 0;
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_NO_ENTRY;
}
obj = dbg->de_obj_file;
if (!obj) {
/* -1 */
return DW_DLV_NO_ENTRY;
}

12
src/lib/libdwarf/dwarf_line.c vendored
View File

@ -1084,6 +1084,7 @@ dwarf_get_ranges_section_name(Dwarf_Debug dbg,
if (error != NULL) {
*error = NULL;
}
CHECK_DBG(dbg,error,"dwarf_get_ranges_section_name()");
sec = &dbg->de_debug_ranges;
if (sec->dss_size == 0) {
/* We don't have such a section at all. */
@ -1099,6 +1100,8 @@ dwarf_get_aranges_section_name(Dwarf_Debug dbg,
Dwarf_Error * error)
{
struct Dwarf_Section_s *sec = 0;
CHECK_DBG(dbg,error,"dwarf_get_aranges_section_name()");
if (error != NULL) {
*error = NULL;
}
@ -1116,6 +1119,8 @@ dwarf_get_line_section_name(Dwarf_Debug dbg,
Dwarf_Error * error)
{
struct Dwarf_Section_s *sec = 0;
CHECK_DBG(dbg,error,"dwarf_get_line_section_name)");
if (error != NULL) {
*error = NULL;
}
@ -1160,11 +1165,11 @@ dwarf_get_string_section_name(Dwarf_Debug dbg,
{
struct Dwarf_Section_s *sec = 0;
CHECK_DBG(dbg,error,"dwarf_get_string_section_name()");
/* ***** BEGIN CODE ***** */
if (error != NULL) {
*error = NULL;
}
sec = &dbg->de_debug_str;
if (sec->dss_size == 0) {
/* We don't have such a section at all. */
@ -2540,9 +2545,10 @@ _dwarf_update_chain_list( Dwarf_Chain chain_line,
}
void
_dwarf_free_chain_entries(Dwarf_Debug dbg,Dwarf_Chain head,int count)
_dwarf_free_chain_entries(Dwarf_Debug dbg,Dwarf_Chain head,
Dwarf_Unsigned count)
{
int i = 0;
Dwarf_Unsigned i = 0;
Dwarf_Chain curr_chain = head;
for (i = 0; i < count; i++) {
Dwarf_Chain t = curr_chain;

2
src/lib/libdwarf/dwarf_line.h vendored
View File

@ -479,7 +479,7 @@ void _dwarf_report_bad_lnct( Dwarf_Debug dbg,
void _dwarf_update_chain_list( Dwarf_Chain chain_line,
Dwarf_Chain *head_chain, Dwarf_Chain *curr_chain);
void _dwarf_free_chain_entries(Dwarf_Debug dbg,Dwarf_Chain head,
int count);
Dwarf_Unsigned count);
int _dwarf_line_context_constructor(Dwarf_Debug dbg, void *m);
void _dwarf_line_context_destructor(void *m);

28
src/lib/libdwarf/dwarf_loc.c vendored
View File

@ -65,7 +65,7 @@ _dwarf_locdesc_c_constructor(Dwarf_Debug dbg, void *locd)
{
Dwarf_Locdesc_c ldp = (Dwarf_Locdesc_c)locd;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_ERROR;
}
ldp->ld_lle_value = DW_LLE_VALUE_BOGUS;
@ -344,13 +344,7 @@ _dwarf_setup_loc(Dwarf_Attribute attr,
*cucontext_ret = attr->ar_cu_context;
dbg = attr->ar_cu_context->cc_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_ATTR_DBG_NULL,
"DW_DLE_ATTR_DBG_NULL The Attribute passed to "
"dwarf_get_loclist_c() "
"points to an invalid Dwarf_Debug");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"_dwarf_get_loclist_lle_count()");
*dbg_ret = dbg;
blkres = dwarf_whatform(attr, &form, error);
if (blkres != DW_DLV_OK) {
@ -1611,14 +1605,7 @@ dwarf_get_loclist_c(Dwarf_Attribute attr,
return DW_DLV_ERROR;
}
dbg = attr->ar_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL Dwarf_Debug, improper Dwarf_Attribute "
"argument passed to "
"dwarf_get_loclist_c()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_loclist_c()");
/* ***** BEGIN CODE ***** */
setup_res = _dwarf_setup_loc(attr, &dbg,&cucontext, &form, error);
@ -1764,14 +1751,7 @@ dwarf_loclist_from_expr_c(Dwarf_Debug dbg,
Dwarf_Small version_stamp = dwarf_version;
int res = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL or bad Dwarf_Debug "
"argument passed to "
"dwarf_loclist_from_expr_c()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_loclist_from_expr_c()");
llhead = (Dwarf_Loc_Head_c)_dwarf_get_alloc(dbg,
DW_DLA_LOC_HEAD_C, 1);
if (!llhead) {

41
src/lib/libdwarf/dwarf_loclists.c vendored
View File

@ -78,7 +78,7 @@ free_loclists_chain(Dwarf_Debug dbg, Dwarf_Chain head)
Dwarf_Chain cur = head;
Dwarf_Chain next = 0;
if (!head || !dbg) {
if (!head || IS_INVALID_DBG(dbg)) {
return;
}
for ( ;cur; cur = next) {
@ -511,14 +511,7 @@ dwarf_load_loclists(Dwarf_Debug dbg,
Dwarf_Loclists_Context *cxt = 0;
Dwarf_Unsigned count = 0;
if (!dbg) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL Dwarf_Debug "
"argument passed to "
"dwarf_load_loclists()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_load_loclists()");
if (dbg->de_loclists_context) {
if (loclists_count) {
*loclists_count = dbg->de_loclists_context_count;
@ -587,15 +580,7 @@ dwarf_get_loclist_offset_index_value(Dwarf_Debug dbg,
Dwarf_Small *offsetptr = 0;
Dwarf_Unsigned targetoffset = 0;
if (!dbg) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL Dwarf_Debug "
"argument passed to "
"dwarf_get_loclist_offset_index_value()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_loclist_offset_index_value()");
if (!dbg->de_loclists_context_count) {
return DW_DLV_NO_ENTRY;
}
@ -728,14 +713,7 @@ dwarf_get_loclist_context_basics(Dwarf_Debug dbg,
{
Dwarf_Loclists_Context con = 0;
if (!dbg) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL Dwarf_Debug "
"argument passed to "
"dwarf_get_loclist_context_basics()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_loclist_context_basics()");
if (!dbg->de_loclists_context_count) {
return DW_DLV_NO_ENTRY;
}
@ -815,14 +793,7 @@ int dwarf_get_loclist_lle(Dwarf_Debug dbg,
int res = 0;
unsigned address_size = 0;
if (!dbg) {
_dwarf_error_string(dbg, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL Dwarf_Debug "
"argument passed to "
"dwarf_get_loclist_lle()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_loclist_lle()");
if (!dbg->de_loclists_context_count) {
return DW_DLV_NO_ENTRY;
}
@ -1318,7 +1289,7 @@ dwarf_dealloc_loc_head_c(Dwarf_Loc_Head_c head)
return;
}
dbg = head->ll_dbg;
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return;
}
if (head->ll_first) {

27
src/lib/libdwarf/dwarf_machoread.c vendored
View File

@ -193,14 +193,14 @@ static int macho_get_section_info (void *obj,
struct generic_macho_section *sp = 0;
sp = macho->mo_dwarf_sections + section_index;
return_section->as_name = sp->dwarfsectname;
return_section->as_type = 0;
return_section->as_flags = 0;
return_section->as_addr = 0;
return_section->as_offset = 0;
return_section->as_size = sp->size;
return_section->as_link = 0;
return_section->as_info = 0;
return_section->as_name = sp->dwarfsectname;
return_section->as_type = 0;
return_section->as_flags = sp->flags;
return_section->as_addr = sp->addr;
return_section->as_offset = sp->offset;
return_section->as_size = sp->size;
return_section->as_link = 0;
return_section->as_info = 0;
return_section->as_addralign = 0;
return_section->as_entrysize = 0;
return DW_DLV_OK;
@ -342,7 +342,8 @@ load_macho_header32(dwarf_macho_object_access_internals_t *mfp,
*errcode = DW_DLE_MACHO_CORRUPT_HEADER;
return DW_DLV_ERROR;
}
mfp->mo_machine = mfp->mo_header.cputype;
mfp->mo_flags = mfp->mo_header.flags;
mfp->mo_command_start_offset = sizeof(mh32);
return DW_DLV_OK;
}
@ -383,6 +384,8 @@ load_macho_header64(dwarf_macho_object_access_internals_t *mfp,
*errcode = DW_DLE_MACHO_CORRUPT_HEADER;
return DW_DLV_ERROR;
}
mfp->mo_machine = mfp->mo_header.cputype;
mfp->mo_flags = mfp->mo_header.flags;
mfp->mo_command_start_offset = sizeof(mh64);
return DW_DLV_OK;
}
@ -887,6 +890,8 @@ _dwarf_macho_setup(int fd,
}
intfc = binary_interface->ai_object;
intfc->mo_path = strdup(true_path);
(*dbg)->de_obj_flags = intfc->mo_flags;
(*dbg)->de_obj_machine = intfc->mo_machine;
(*dbg)->de_universalbinary_index = universalnumber;
(*dbg)->de_universalbinary_count = universalbinary_count;
return res;
@ -1069,6 +1074,10 @@ _dwarf_macho_object_access_internals_init(
break;
}
}
if (sp->dwarfsectname[0] == 0) {
/* if not matched, keep the apple section name */
sp->dwarfsectname = sp->sectname;
}
}
return DW_DLV_OK;
}

2
src/lib/libdwarf/dwarf_machoread.h vendored
View File

@ -120,6 +120,8 @@ typedef struct dwarf_macho_filedata_s {
int mo_fd;
int mo_destruct_close_fd; /*aka: lib owns fd */
Dwarf_Unsigned mo_filesize;
Dwarf_Unsigned mo_machine;
Dwarf_Unsigned mo_flags;
Dwarf_Unsigned mo_inner_offset; /* for universal inner */
Dwarf_Small mo_offsetsize; /* 32 or 64 section data */
Dwarf_Small mo_pointersize;

2
src/lib/libdwarf/dwarf_macro.c vendored
View File

@ -223,7 +223,7 @@ dwarf_get_macro_details(Dwarf_Debug dbg,
unsigned long count = 0;
unsigned long max_count = (unsigned long) maximum_count;
_dwarf_reset_index_macro_stack(&msdata);
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL: Either null or it contains"
"a stale Dwarf_Debug pointer");

2
src/lib/libdwarf/dwarf_macro5.c vendored
View File

@ -1596,7 +1596,7 @@ int dwarf_get_macro_section_name(Dwarf_Debug dbg,
{
struct Dwarf_Section_s *sec = 0;
(void)error;
CHECK_DBG(dbg,error,"dwarf_get_macro_section_name()");
sec = &dbg->de_debug_macro;
if (sec->dss_size == 0) {
/* We don't have such a section at all. */

33
src/lib/libdwarf/dwarf_object_detector.c vendored
View File

@ -115,6 +115,22 @@ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/* A flag not public to users. */
static int _dwarf_global_debuglink_crc_suppress;
#if 0
/* debugging only */
static void
dump_bytes(char * msg,Dwarf_Small * start, long len)
{
Dwarf_Small *end = start + len;
Dwarf_Small *cur = start;
printf("%s ",msg);
for (; cur < end; cur++) {
printf("%02x ", *cur);
}
printf("\n");
}
#endif
int
dwarf_suppress_debuglink_crc(int dw_suppress)
{
@ -709,6 +725,9 @@ match_buildid(
return TRUE;
}
/* we need the crc byte order to match that
of the object file so a comparison works.
Here we fix up when there is a mismatch */
static int
_dwarf_debuglink_finder_newpath(
char * path_in,
@ -718,7 +737,8 @@ _dwarf_debuglink_finder_newpath(
dwarfstring *m,
int * fd_out)
{
unsigned char lcrc[4];
unsigned char lcrc[4] = {0,0,0,0};
unsigned char newcrc[4] = {0,0,0,0};
char *debuglinkpath = 0; /* must be freed */
unsigned char *crc = 0;
char *debuglinkfullpath = 0;
@ -771,7 +791,6 @@ _dwarf_debuglink_finder_newpath(
free(paths);
paths = 0;
memset(&lcrc[0],0,sizeof(lcrc));
if (!_dwarf_get_suppress_debuglink_crc() &&crc_in && !crc) {
int res1 = 0;
@ -787,7 +806,8 @@ _dwarf_debuglink_finder_newpath(
return DW_DLV_NO_ENTRY;
}
if (res1 == DW_DLV_OK) {
crc = &lcrc[0];
dbg->de_copy_word((void *)newcrc,(void *)lcrc,4);
crc=&newcrc[0];
}
}
free(debuglinkfullpath);
@ -851,7 +871,8 @@ _dwarf_debuglink_finder_internal(
DW_GROUPNUMBER_ANY,
0,0, &dbg, &error);
if (res == DW_DLV_ERROR) {
*errcode = dwarf_errno(error);
/* error codes all >=0 && < 2000 */
*errcode = (int)dwarf_errno(error);
dwarf_dealloc_error(dbg,error);
error = 0;
return res;
@ -867,7 +888,7 @@ _dwarf_debuglink_finder_internal(
lpath, &error);
if (res != DW_DLV_OK){
if (res == DW_DLV_ERROR) {
*errcode = dwarf_errno(error);
*errcode = (int)dwarf_errno(error);
dwarf_dealloc_error(dbg,error);
error = 0;
}
@ -882,7 +903,7 @@ _dwarf_debuglink_finder_internal(
&buildid, &buildid_length,
&paths, &paths_count, &error);
if (res == DW_DLV_ERROR) {
*errcode = dwarf_errno(error);
*errcode = (int)dwarf_errno(error);
dwarf_dealloc_error(dbg,error);
dwarf_finish(dbg);
return DW_DLV_NO_ENTRY;

29
src/lib/libdwarf/dwarf_opaque.h vendored
View File

@ -594,9 +594,10 @@ struct Dwarf_Debug_s {
under de_obj_file. */
int de_fd;
char de_owns_fd;
Dwarf_Small de_ftype; /* DW_FTYPE_PE, ... */
char de_in_tdestroy; /* for de_alloc_tree DW202309-001 */
/* DW_PATHSOURCE_BASIC or MACOS or DEBUGLINK */
unsigned char de_path_source;
Dwarf_Small de_path_source;
/* de_path is only set automatically if dwarf_init_path()
was used to initialize things.
Used with the .gnu_debuglink section. */
@ -627,8 +628,26 @@ struct Dwarf_Debug_s {
leave this zero. */
Dwarf_Unsigned de_filesize;
/* The value is what the object file encodes for
the machine, In an Elf Header, for example, its value
comes from the e_machine field.
MACOS provides a cputype field.
PE provides IMAGE_FILE_HEADER.Machine.
Inspect de_ftype using the value of
de_obj_machine or the following de_obj_* fields. */
Dwarf_Unsigned de_obj_machine;
/* For DW_FTYPE_APPLEUNIVERSAL this is the
offset of an executable object in the multi-executable
file. For all other de_ftype values this has
value zero. */
Dwarf_Unsigned de_obj_ub_offset;
/* The flags field from an Elf or Macos header
or the Charactersics field from a PE header. */
Dwarf_Unsigned de_obj_flags;
/* number of bytes in a pointer of the target in various .debug_
sections. 4 in 32bit, 8 in MIPS 64, ia64. */
sections. 4 in 32bit, 8 in MIPS 64, ia64.
This is taken from object file headers. */
Dwarf_Small de_pointer_size;
/* set at creation of a Dwarf_Debug to say if form_string
@ -738,8 +757,8 @@ struct Dwarf_Debug_s {
Dwarf_Xu_Index_Header de_cu_hashindex_data;
Dwarf_Xu_Index_Header de_tu_hashindex_data;
void (*de_copy_word) (void *, const void *, unsigned long);
unsigned char de_same_endian;
void (*de_copy_word) (void *dw_targ, const void *dw_src,
unsigned long dw_len);
unsigned char de_elf_must_close; /* If non-zero, then
it was dwarf_init (not dwarf_elf_init)
so must elf_end() */
@ -902,6 +921,7 @@ int _dwarf_create_a_new_cu_context_record_on_list(
Dwarf_Unsigned section_size,
Dwarf_Unsigned new_cu_offset,
Dwarf_CU_Context *context_out,
Dwarf_Die *cu_die_out,
Dwarf_Error *error);
Dwarf_Unsigned _dwarf_calculate_next_cu_context_offset(
Dwarf_CU_Context cu_context);
@ -949,6 +969,7 @@ int _dwarf_section_in_group_by_name(Dwarf_Debug dbg,
int
_dwarf_next_cu_header_internal(Dwarf_Debug dbg,
Dwarf_Bool is_info,
Dwarf_Die * cu_die_out,
Dwarf_Unsigned * cu_header_length,
Dwarf_Half * version_stamp,
Dwarf_Unsigned * abbrev_offset,

19
src/lib/libdwarf/dwarf_peread.c vendored
View File

@ -241,10 +241,10 @@ pe_get_section_info (void *obj,
sp = pep->pe_sectionptr + section_index;
return_section->as_name = sp->dwarfsectname;
return_section->as_type = 0;
return_section->as_flags = 0;
return_section->as_flags = sp->Characteristics;
return_section->as_addr = pep->pe_OptionalHeader.ImageBase +
sp->VirtualAddress;
return_section->as_offset = 0;
return_section->as_offset = sp->PointerToRawData;
/* SizeOfRawData can be rounded or truncated,
use VirtualSize for the real analog of Elf
section size. */
@ -400,6 +400,9 @@ pe_load_section (void *obj, Dwarf_Unsigned section_index,
*return_data = sp->loaded_data;
return DW_DLV_OK;
}
if (sp->section_irrelevant_to_dwarf) {
return DW_DLV_NO_ENTRY;
}
if (!sp->VirtualSize) {
return DW_DLV_NO_ENTRY;
}
@ -577,10 +580,11 @@ _dwarf_pe_load_dwarf_section_headers(
filesect.SizeOfRawData);
irrelevant = is_irrelevant_section(sec_outp->dwarfsectname,
sec_outp->VirtualSize);
sec_outp->section_irrelevant_to_dwarf = irrelevant;
if (irrelevant) {
sec_outp->VirtualSize = 0;
sec_outp->SizeOfRawData = 0;
}else{
continue;
}
{
/* A Heuristic, allowing large virtual size
but not unlimited as we will malloc it
later, as Virtualsize. */
@ -740,7 +744,8 @@ _dwarf_load_pe_sections(
ifh.SizeOfOptionalHeader);
ASNAR(word_swap,pep->pe_FileHeader.Characteristics,
ifh.Characteristics);
pep->pe_machine = pep->pe_FileHeader.Machine;
pep->pe_flags = pep->pe_FileHeader.Characteristics;
pep->pe_optional_header_offset = pep->pe_nt_header_offset+
sizeof(ifh);
if (pep->pe_offsetsize == 32) {
@ -879,6 +884,8 @@ _dwarf_pe_setup(int fd,
return res;
}
pep = binary_interface->ai_object;
(*dbg)->de_obj_flags = pep->pe_flags;
(*dbg)->de_obj_machine = pep->pe_machine;
pep->pe_path = strdup(true_path);
return res;
}

4
src/lib/libdwarf/dwarf_peread.h vendored
View File

@ -107,6 +107,7 @@ struct dwarf_pe_generic_image_section_header
Dwarf_Unsigned NumberOfLinenumbers;
Dwarf_Unsigned Characteristics;
Dwarf_Small * loaded_data; /* must be freed. */
Dwarf_Bool section_irrelevant_to_dwarf;
};
#define DWARF_PE_IMAGE_NT_OPTIONAL_HDR32_MAGIC 0x10b
@ -123,11 +124,12 @@ typedef struct pe_filedata_s {
int pe_destruct_close_fd; /*aka: lib owns fd */
int pe_is_64bit;
Dwarf_Unsigned pe_filesize;
Dwarf_Unsigned pe_flags;
Dwarf_Unsigned pe_machine;
Dwarf_Small pe_offsetsize; /* 32 or 64 section data */
Dwarf_Small pe_pointersize;
int pe_ftype;
unsigned pe_endian;
/*Dwarf_Small pe_machine; */
void (*pe_copy_word) (void *, const void *, unsigned long);
Dwarf_Unsigned pe_nt_header_offset;
Dwarf_Unsigned pe_optional_header_offset;

66
src/lib/libdwarf/dwarf_query.c vendored
View File

@ -58,10 +58,7 @@ int dwarf_get_offset_size(Dwarf_Debug dbg,
Dwarf_Half * offset_size,
Dwarf_Error * error)
{
if (dbg == 0) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_offset_size()");
*offset_size = dbg->de_length_size;
return DW_DLV_OK;
}
@ -96,10 +93,7 @@ dwarf_get_address_size(Dwarf_Debug dbg,
{
Dwarf_Half address_size = 0;
if (dbg == 0) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_address_size()");
address_size = dbg->de_pointer_size;
*ret_addr_size = address_size;
return DW_DLV_OK;
@ -250,9 +244,9 @@ dwarf_offset_list(Dwarf_Debug dbg,
Dwarf_Chain_2 head_chain = 0;
Dwarf_Chain_2 *plast = &head_chain;
CHECK_DBG(dbg,error,"dwarf_offset_list()");
*offbuf = NULL;
*offcnt = 0;
res = dwarf_offdie_b(dbg,offset,is_info,&die,error);
if (DW_DLV_OK != res) {
return res;
@ -298,7 +292,7 @@ dwarf_offset_list(Dwarf_Debug dbg,
}
/* Move to next sibling next sibling */
sib_die = 0;
res = dwarf_siblingof_b(dbg,cur_die,is_info,&sib_die,error);
res = dwarf_siblingof_c(cur_die,&sib_die,error);
if (cur_die != die) {
dwarf_dealloc(dbg,cur_die,DW_DLA_DIE);
}
@ -2113,7 +2107,7 @@ dwarf_get_universalbinary_count(
Dwarf_Unsigned *current_index,
Dwarf_Unsigned *available_count)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_NO_ENTRY;
}
if (!dbg->de_universalbinary_count ) {
@ -2127,3 +2121,53 @@ dwarf_get_universalbinary_count(
}
return DW_DLV_OK;
}
/* Never returns DW_DLV_ERROR */
int
dwarf_machine_architecture(Dwarf_Debug dbg,
Dwarf_Small *dw_ftype,
Dwarf_Small *dw_obj_pointersize,
Dwarf_Bool *dw_obj_is_big_endian,
Dwarf_Unsigned *dw_obj_machine,
Dwarf_Unsigned *dw_obj_flags,
Dwarf_Small *dw_path_source,
Dwarf_Unsigned *dw_ub_offset,
Dwarf_Unsigned *dw_ub_count,
Dwarf_Unsigned *dw_ub_index,
Dwarf_Unsigned *dw_comdat_groupnumber)
{
if (IS_INVALID_DBG(dbg)) {
return DW_DLV_NO_ENTRY;
}
if (dw_ftype) {
*dw_ftype = dbg->de_ftype;
}
if (dw_obj_pointersize) {
*dw_obj_pointersize = dbg->de_pointer_size;
}
if (dw_obj_is_big_endian) {
*dw_obj_is_big_endian = dbg->de_big_endian_object;
}
if (dw_obj_machine) {
*dw_obj_machine = dbg->de_obj_machine;
}
if (dw_obj_flags) {
*dw_obj_flags = dbg->de_obj_flags;
}
if (dw_path_source) {
*dw_path_source = dbg->de_path_source;
}
if (dw_ub_offset) {
*dw_ub_offset = dbg->de_obj_ub_offset;
}
if (dw_ub_count) {
*dw_ub_count = dbg->de_universalbinary_count;
}
if (dw_ub_index) {
*dw_ub_index = dbg->de_universalbinary_index;
}
if (dw_comdat_groupnumber) {
*dw_comdat_groupnumber = dbg->de_groupnumber;
}
return DW_DLV_OK;
}

5
src/lib/libdwarf/dwarf_ranges.c vendored
View File

@ -135,10 +135,7 @@ int dwarf_get_ranges_b(Dwarf_Debug dbg,
Dwarf_Bool rangeslocal = TRUE;
(void)offset_size;
if (!dbg) {
_dwarf_error(NULL, error, DW_DLE_DBG_NULL);
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_ranges_b()");
address_size = localdbg->de_pointer_size; /* default */
if (die) {
/* If we wind up using the tied file the die_version

49
src/lib/libdwarf/dwarf_rnglists.c vendored
View File

@ -540,14 +540,7 @@ int dwarf_load_rnglists(
Dwarf_Rnglists_Context *cxt = 0;
Dwarf_Unsigned count = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL"
"NULL or invalid Dwarf_Debug "
"argument passed to "
"dwarf_load_rnglists()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_load_rnglists");
if (dbg->de_rnglists_context) {
if (rnglists_count) {
*rnglists_count = dbg->de_rnglists_context_count;
@ -585,7 +578,7 @@ _dwarf_dealloc_rnglists_context(Dwarf_Debug dbg)
Dwarf_Unsigned i = 0;
Dwarf_Rnglists_Context * rngcon = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
if (IS_INVALID_DBG(dbg)) {
return;
}
if (!dbg->de_rnglists_context) {
@ -621,14 +614,7 @@ dwarf_get_rnglist_offset_index_value(
Dwarf_Unsigned targetoffset = 0;
Dwarf_Unsigned localoffset = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL "
"NULL or invalid dbg "
"argument passed to "
"dwarf_get_rnglist_offset_index_value()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_rnglist_offset_index_value()");
if (!dbg->de_rnglists_context) {
return DW_DLV_NO_ENTRY;
}
@ -767,14 +753,8 @@ int dwarf_get_rnglist_context_basics(
Dwarf_Error *error)
{
Dwarf_Rnglists_Context con = 0;
if (!dbg) {
_dwarf_error_string(NULL, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL "
"NULL dbg "
"argument passed to "
"dwarf_get_rnglist_context_basics()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_rnglist_context_basics()");
if (!dbg->de_rnglists_context_count) {
return DW_DLV_NO_ENTRY;
}
@ -853,14 +833,7 @@ int dwarf_get_rnglist_rle(
unsigned address_size = 0;
Dwarf_Unsigned secsize = 0;
if (!dbg) {
_dwarf_error_string(NULL, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL "
"NULL dbg "
"argument passed to "
"dwarf_get_rnglist_rle()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_rnglist_rle()");
secsize = dbg->de_debug_rnglists.dss_size;
if (!dbg->de_rnglists_context_count) {
return DW_DLV_NO_ENTRY;
@ -1311,14 +1284,8 @@ dwarf_rnglists_get_rle_head(
memset(&shead,0,sizeof(shead));
ctx = attr->ar_cu_context;
dbg = ctx->cc_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error,DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL "
"NULL or invalid dbg "
"argument passed to "
"dwarf_rnglists_get_rle_head()");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,
"dwarf_rnglists_get_rle_head() via attribute");
array = dbg->de_rnglists_context;
if (theform == DW_FORM_rnglistx) {
is_rnglistx = TRUE;

5
src/lib/libdwarf/dwarf_str_offsets.c vendored
View File

@ -90,10 +90,7 @@ dwarf_open_str_offsets_table_access(Dwarf_Debug dbg,
Dwarf_Small *offsets_start_ptr = 0;
Dwarf_Unsigned sec_size = 0;
if (!dbg) {
_dwarf_error(NULL,error,DW_DLE_STR_OFFSETS_NULL_DBG);
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_open_str_offsets_table_access()");
if (!table_data) {
_dwarf_error(dbg,error,DW_DLE_STR_OFFSETS_NULLARGUMENT);
return DW_DLV_ERROR;

8
src/lib/libdwarf/dwarf_stringsection.c vendored
View File

@ -55,13 +55,7 @@ dwarf_get_str(Dwarf_Debug dbg,
void *begin = 0;
void *end = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(NULL, error, DW_DLE_DBG_NULL,
"DW_DLE_DBG_NULL:calling dwarf_get_str()"
"Either null or it contains"
"a stale Dwarf_Debug pointer");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_str()");
if (offset == dbg->de_debug_str.dss_size) {
/* Normal (if we've iterated thru the set of strings using
dwarf_get_str and are at the end). */

1
src/lib/libdwarf/dwarf_tied.c vendored
View File

@ -166,6 +166,7 @@ _dwarf_loop_reading_debug_info_for_cu(
memset(&signature,0,sizeof(signature));
sres = _dwarf_next_cu_header_internal(tieddbg,
is_info,
/* no CU die wanted*/ NULL,
&cu_header_length, &version_stamp,
&abbrev_offset, &address_size,
&length_size,&extension_size,

14
src/lib/libdwarf/dwarf_util.c vendored
View File

@ -148,7 +148,7 @@ dwarf_get_endian_copy_function(Dwarf_Debug dbg)
Dwarf_Bool
_dwarf_file_has_debug_fission_cu_index(Dwarf_Debug dbg)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return FALSE;
}
if (dbg->de_cu_hashindex_data) {
@ -159,7 +159,7 @@ _dwarf_file_has_debug_fission_cu_index(Dwarf_Debug dbg)
Dwarf_Bool
_dwarf_file_has_debug_fission_tu_index(Dwarf_Debug dbg)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return FALSE;
}
if (dbg->de_tu_hashindex_data ) {
@ -171,7 +171,7 @@ _dwarf_file_has_debug_fission_tu_index(Dwarf_Debug dbg)
Dwarf_Bool
_dwarf_file_has_debug_fission_index(Dwarf_Debug dbg)
{
if (!dbg) {
if (IS_INVALID_DBG(dbg)) {
return FALSE;
}
if (dbg->de_cu_hashindex_data ||
@ -629,8 +629,8 @@ copy_abbrev_table_to_new_table(Dwarf_Hash_Table htin,
Dwarf_Abbrev_List listent = entry_in[k];
Dwarf_Abbrev_List nextlistent = 0;
for (; listent ; listent = nextlistent) {
unsigned long newtmp = listent->abl_code;
unsigned long newhash = newtmp HT_MOD_OP
Dwarf_Unsigned newtmp = listent->abl_code;
Dwarf_Unsigned newhash = newtmp HT_MOD_OP
(entry_out_count -1);
nextlistent = listent->abl_next;
@ -743,7 +743,7 @@ _dwarf_get_abbrev_for_code(Dwarf_CU_Context context,
Dwarf_Byte_Ptr end_abbrev_ptr = 0;
Dwarf_Small *abbrev_section_start =
dbg->de_debug_abbrev.dss_data;
unsigned long hashable_val = 0;
Dwarf_Unsigned hashable_val = 0;
if (!hash_table_base->tb_entries) {
hash_table_base->tb_table_entry_count =
@ -883,7 +883,7 @@ printf("debugging: initial size %u\n",HT_DEFAULT_TABLE_SIZE);
return DW_DLV_NO_ENTRY;
}
do {
unsigned long new_hashable_val = 0;
Dwarf_Unsigned new_hashable_val = 0;
Dwarf_Off abb_goff = 0;
Dwarf_Unsigned atcount = 0;
Dwarf_Unsigned impl_const_count = 0;

22
src/lib/libdwarf/dwarf_util.h vendored
View File

@ -153,6 +153,13 @@ _dwarf_create_area_len_error(Dwarf_Debug dbg, Dwarf_Error *error,
(ptr) += lu_leblen; \
} while (0)
/* This is for use where the action taken must be local.
One cannot do a return. Reasons vary.
Use this in an if or assign the result to a
local small integer (normally an int). */
#define IS_INVALID_DBG(d) \
((!(d) || ((d)->de_magic != DBG_IS_VALID))?TRUE:FALSE)
/* Any error found here represents a bug that cannot
be dealloc-d as the caller will not know there was no dbg */
#define CHECK_DIE(die, error_ret_value) \
@ -178,6 +185,21 @@ _dwarf_create_area_len_error(Dwarf_Debug dbg, Dwarf_Error *error,
} \
} while (0)
/* Any error found here represents a bug that cannot
be fixed. Pass cd_funcname as a quoted string,
for example "dwarf_crc32" */
#define CHECK_DBG(cd_dbg,cd_er,cd_funcname) \
do { \
if (!(cd_dbg) || (cd_dbg)->de_magic != DBG_IS_VALID) { \
_dwarf_error_string(NULL, (cd_er), DW_DLE_DBG_NULL, \
"DW_DLE_DBG_NULL: " \
"dbg argument to " cd_funcname \
"either null or it contains" \
"a stale Dwarf_Debug pointer"); \
return DW_DLV_ERROR; \
} \
} while (0)
/*
Reads 'source' for 'length' bytes from unaligned addr.

32
src/lib/libdwarf/dwarf_xu_index.c vendored
View File

@ -195,13 +195,8 @@ dwarf_get_xu_index_header(Dwarf_Debug dbg,
Dwarf_Unsigned section_sizes_tab_offset = 0;
unsigned datalen32 = SIZEOFT32;
Dwarf_Small *section_end = 0;
/* FIXME */
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(0,error,DW_DLE_XU_TYPE_ARG_ERROR,
"DW_DLE_XU_TYPE_ARG_ERROR: Dwarf_Debug pointer "
"is not valid");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_xu_index_header()");
if (!section_type || !xuptr) {
_dwarf_error_string(0,error,DW_DLE_XU_TYPE_ARG_ERROR,
"DW_DLE_XU_TYPE_ARG_ERROR: section type or header "
@ -540,12 +535,7 @@ dwarf_get_xu_section_names(Dwarf_Xu_Index_Header xuhdr,
}
dbg = xuhdr->gx_dbg;
/* FIXME */
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(0,error,DW_DLE_XU_TYPE_ARG_ERROR,
"DW_DLE_XU_TYPE_ARG_ERROR: Dwarf_Debug pointer "
"from Dwarf_Xu_Index_Header is not valid");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_xu_section_names()");
if ( column_index >= xuhdr->gx_column_count_sections) {
dwarfstring s;
@ -608,12 +598,7 @@ dwarf_get_xu_section_offset(Dwarf_Xu_Index_Header xuhdr,
}
/* FIXME */
dbg = xuhdr->gx_dbg;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(0,error,DW_DLE_XU_TYPE_ARG_ERROR,
"DW_DLE_XU_TYPE_ARG_ERROR: Dwarf_Debug pointer "
"from Dwarf_Xu_Index_Header is not valid");
return DW_DLV_ERROR;
}
CHECK_DBG(dbg,error,"dwarf_get_xu_section_offset()");
sizerow = xuhdr->gx_section_sizes_offset +
xuhdr->gx_section_data;
offsetrow = xuhdr->gx_section_offsets_offset +
@ -931,6 +916,7 @@ _dwarf_get_debugfission_for_offset(Dwarf_Debug dbg,
Dwarf_Unsigned sect_index_base = 0;
Dwarf_Sig8 key;
CHECK_DBG(dbg,error,"_dwarf_get_debugfission_for_offset()");
sect_index_base = DW_SECT_INFO;
key = zerohashkey;
sres = _dwarf_get_xuhdr(dbg,key_type, &xuhdr,error);
@ -960,13 +946,7 @@ dwarf_get_debugfission_for_key(Dwarf_Debug dbg,
Dwarf_Unsigned percu_index = 0;
Dwarf_Xu_Index_Header xuhdr = 0;
if (!dbg || dbg->de_magic != DBG_IS_VALID) {
_dwarf_error_string(0,error,DW_DLE_XU_TYPE_ARG_ERROR,
"DW_DLE_XU_TYPE_ARG_ERROR: Dwarf_Debug pointer "
"is not valid");
return DW_DLV_ERROR;
/*FIXME */
}
CHECK_DBG(dbg,error,"dwarf_get_debugfission_for_key()");
if (!key || !key_type || !percu_out) {
_dwarf_error_string(0,error,DW_DLE_XU_TYPE_ARG_ERROR,
"DW_DLE_XU_TYPE_ARG_ERROR: dw_key, dw_keytype, or "

450
src/lib/libdwarf/libdwarf.h vendored
View File

@ -134,7 +134,7 @@ extern "C" {
associated with a dwarf frame. */
#define DW_DLX_NO_EH_OFFSET (-1LL)
/* The following value indicates that the producer
was unable to analyse the
was unable to analyze the
source file to generate Exception tables for this function. */
#define DW_DLX_EH_OFFSET_UNAVAILABLE (-2LL)
@ -777,7 +777,7 @@ typedef struct Dwarf_Rnglists_Head_s * Dwarf_Rnglists_Head;
associated with a dwarf frame. */
#define DW_DLX_NO_EH_OFFSET (-1LL)
/* The following value indicates that the producer
was unable to analyse the
was unable to analyze the
source file to generate Exception tables for this function. */
#define DW_DLX_EH_OFFSET_UNAVAILABLE (-2LL)
@ -1733,16 +1733,26 @@ DW_API int dwarf_get_tied_dbg(Dwarf_Debug dw_dbg,
@{
*/
/*! @brief Return information on the next CU header.
/*! @brief Return information on the next CU header(e).
New in v0.9.0 November 2023.
The library keeps track of where it is in the object file
and it knows where to find 'next'.
It returns the CU_DIE pointer through dw_cu_die;
@param dw_dbg
The Dwarf_Debug of interest.
@param dw_is_info
Pass in TRUE if reading through .debug_info
Pass in FALSE if reading through DWARF4
.debug_types.
@param dw_cu_die
Pass in a pointer to a Dwarf_Die. the call
sets the passed-in pointer to be a Compilation
Unit Die for use with dwarf_child() or any
other call requiring a Dwarf_Die argument.
@param dw_cu_header_length
Returns the length of the just-read CU header.
@param dw_version_stamp
@ -1783,9 +1793,55 @@ DW_API int dwarf_get_tied_dbg(Dwarf_Debug dw_dbg,
Returns DW_DLV_OK on success.
Returns DW_DLV_NO_ENTRY if all CUs have been read.
@see examplecuhdr
@see examplecuhdre
*/
DW_API int dwarf_next_cu_header_e(Dwarf_Debug dw_dbg,
Dwarf_Bool dw_is_info,
Dwarf_Die *dw_cu_die,
Dwarf_Unsigned *dw_cu_header_length,
Dwarf_Half *dw_version_stamp,
Dwarf_Off *dw_abbrev_offset,
Dwarf_Half *dw_address_size,
Dwarf_Half *dw_length_size,
Dwarf_Half *dw_extension_size,
Dwarf_Sig8 *dw_type_signature,
Dwarf_Unsigned *dw_typeoffset,
Dwarf_Unsigned *dw_next_cu_header_offset,
Dwarf_Half *dw_header_cu_type,
Dwarf_Error *dw_error);
/*! @brief Return information on the next CU header(d)
This is the version to use for linking against
libdwarf v0.8.0 and earlier (and it also works
for later versions).
This version will evenually be deprecated, but
that won't be for years.
The library keeps track of where it is in the object file
and it knows where to find 'next'.
In order to read the DIE tree of the CU this
records information in the dw_dbg data and
after a successful call to dwarf_next_cu_header_d()
only an immediate call to
dwarf_siblingof_b(dw_dbg,NULL,dw_is_info, &cu_die,...)
is guaranteed to return the correct DIE (a Compilation
Unit DIE).
Avoid any call to libdwarf
between a successful call to dwarf_next_cu_header_d() and
dwarf_siblingof_b(dw_dbg,NULL,dw_is_info, &cu_die,...)
to ensure the intended and correct Dwarf_Die is returned.
@see examplecuhdrd
All arguments are the same as dwarf_next_cu_header_e()
except that there is no dw_cu_die argument here.
*/
DW_API int dwarf_next_cu_header_d(Dwarf_Debug dw_dbg,
Dwarf_Bool dw_is_info,
Dwarf_Unsigned *dw_cu_header_length,
@ -1800,6 +1856,25 @@ DW_API int dwarf_next_cu_header_d(Dwarf_Debug dw_dbg,
Dwarf_Half *dw_header_cu_type,
Dwarf_Error *dw_error);
/*! @brief Return the next sibling DIE.
@param dw_die
Pass in a known DIE and this will retrieve
the next sibling in the chain.
@param dw_return_siblingdie
The DIE returned through the pointer.
@param dw_error
The usual error information, if any.
@return
Returns DW_DLV_OK etc.
@see example4
@see dwarf_get_die_infotypes
*/
DW_API int dwarf_siblingof_c(Dwarf_Die dw_die,
Dwarf_Die *dw_return_siblingdie,
Dwarf_Error *dw_error);
/*! @brief Return the first DIE or the next sibling DIE.
@param dw_dbg
@ -1833,6 +1908,7 @@ DW_API int dwarf_siblingof_b(Dwarf_Debug dw_dbg,
Any Dwarf_Die will work.
The values returned through the pointers
are about the CU for a DIE
@param dw_die
Some open Dwarf_Die.
@param dw_version
@ -2102,7 +2178,7 @@ DW_API Dwarf_Bool dwarf_addr_form_is_indexed(int dw_form);
/*! @brief Return the CU DIE offset given any DIE
Returns
the global debug_info section offset of the CU die
the global debug_info section offset of the CU DIE
in the CU containing the given_die
(the passed in DIE can be any DIE).
@ -3239,6 +3315,49 @@ DW_API int dwarf_discr_entry_s(Dwarf_Dsc_Head dw_dsc,
/*! @brief The list of source files from the line table header
The array returned by this function applies to
a single compilation unit (CU).
The returned array is indexed from 0 (zero) to
dw_filecount-1 when the function returns
DW_DLV_OK.
In referencing the array via a file-number from
a DW_AT_decl_file attribute one needs to
know if the CU is DWARF5 or not.
Line Table Version numbers match compilation unit
version numbers except that an experimental line table
with line table version 0xfe06 has
sometimes been used with DWARF4.
For DWARF5:
The file-number from a \b DW_AT_decl_file
is the proper index into the array of string pointers.
For DWARF2,3,4, including experimental line table
version 0xfe06 and a file-number from a \b DW_AT_decl_file:
-# If the file-number is zero there is no file name to find.
-# Otherwise subtract one(1) from the file-number and
use the new value as the index into the array
of string pointers.
The name strings returned are each assembled in the
following way by dwarf_srcfiles():
-# The file number denotes a name in the line table header.
-# If the name is not a full path (i.e. not starting
with / in posix/linux/MacOS) then prepend the appropriate
directory string from the line table header.
-# If the name is still not a full path then prepend
the content of the DW_AT_comp_dir attribute
of the CU DIE.
To retrieve the line table version call
dwarf_srclines_b() and dwarf_srclines_version().
@see examplec
@param dw_cu_die
The CU DIE in this CU.
@param dw_srcfiles
@ -3267,8 +3386,11 @@ DW_API int dwarf_srcfiles(Dwarf_Die dw_cu_die,
/*! @brief Initialize Dwarf_Line_Context for line table access
Returns Dwarf_Line_Context pointer, needed for
access to line table data.
access to line table data. Returns the line table
version number (needed to use dwarf_srcfiles()
properly).
@see examplec
@see exampled
@param dw_cudie
@ -3295,7 +3417,7 @@ DW_API int dwarf_srclines_b(Dwarf_Die dw_cudie,
/*! @brief Access source lines from line context
The access to Dwarf_Line data from
Provides access to Dwarf_Line data from
a Dwarf_Line_Context on a standard line table.
@param dw_linecontext
@ -3517,7 +3639,6 @@ DW_API int dwarf_srclines_files_indexes(
@return
DW_DLV_OK if it succeeds.
@see examplec
*/
DW_API int dwarf_srclines_files_data_b(
Dwarf_Line_Context dw_context,
@ -3577,9 +3698,15 @@ DW_API int dwarf_srclines_include_dir_data(
Dwarf_Error * dw_error);
/*! @brief The DWARF version number of this compile-unit
The .debug_lines[.dwo] t
actual tables:0 (header with no lines),
1 (standard table), or 2 (experimental).
The .debug_lines[.dwo] table count informs about
the line table version and the
type of line table involved.
Meaning of the value returned via dw_table_count:
- 0 The table is a header with no lines.
- 1 The table is a standard line table.
- 2 The table is an experimental line table.
@param dw_line_context
The Line Context of interest.
@ -4703,16 +4830,17 @@ DW_API int dwarf_debug_addr_table(Dwarf_Debug dw_dbg,
Dwarf_Unsigned *dw_length,
Dwarf_Half *dw_version,
Dwarf_Small *dw_address_size,
Dwarf_Unsigned *dw_dw_at_addr_base,
Dwarf_Unsigned *dw_at_addr_base,
Dwarf_Unsigned *dw_entry_count,
Dwarf_Unsigned *dw_next_table_offset,
Dwarf_Error *dw_error);
/*! @brief Return .debug_addr address given table index
@param dw_table_header
@param dw_dat
Pass in a Dwarf_Debug_Addr_Table pointer.
@param dw_table_header
@param dw_entry_index
Pass in a Dwarf_Debug_Addr_Table index to an address.
If out of the valid range 0 through
dw_entry_count-1 the function returns
@ -4727,8 +4855,7 @@ DW_API int dwarf_debug_addr_table(Dwarf_Debug dw_dbg,
If the dw_section_offset passed in is out of range
it returns DW_DLV_NO_ENTRY.
If it returns DW_DLV_ERROR only dw_error is
set, dw_address and dw_segment are not
set through the pointers.
set, dw_address is not set.
*/
DW_API int dwarf_debug_addr_by_index(Dwarf_Debug_Addr_Table dw_dat,
@ -4738,7 +4865,7 @@ DW_API int dwarf_debug_addr_by_index(Dwarf_Debug_Addr_Table dw_dat,
/*! @brief dealloc (free) a Dwarf_Attr_Table record.
@param dw_table_header
@param dw_dat
Pass in a valid Dwarf_Debug_Addr_Table pointer.
Does nothing if the dw_dat field is NULL.
@ -4825,7 +4952,8 @@ DW_API int dwarf_get_macro_context_by_offset(Dwarf_Die dw_die,
Dwarf_Unsigned * dw_macro_ops_data_length,
Dwarf_Error * dw_error);
/* New December 2020. Sometimes its necessary to know
/* New December 2020. libdwarf 0.1.0
Sometimes its necessary to know
a context total length including macro 5 header */
/*! @brief Return a macro context total length
@ -5333,6 +5461,7 @@ DW_API int dwarf_get_fde_instr_bytes(Dwarf_Fde dw_fde,
/*! @brief Return information on frame registers at a given pc value
An FDE at a given pc (code address)
This function is new in October 2023 version 0.9.0.
@param dw_fde
Pass in the FDE of interest.
@ -5345,6 +5474,14 @@ DW_API int dwarf_get_fde_instr_bytes(Dwarf_Fde dw_fde,
On success returns the address of the row of
frame data which may be a few counts off of
the pc requested.
@param dw_has_more_rows
On success returns FALSE if there are no more rows,
otherwise returns TRUE.
@param dw_subsequent_pc
On success this returns the address of the next pc
for which there is a register row, making access
to all the rows in sequence much more efficient
than just adding 1 to a pc value.
@param dw_error
The usual error detail return pointer.
@return
@ -5353,6 +5490,23 @@ DW_API int dwarf_get_fde_instr_bytes(Dwarf_Fde dw_fde,
in the table.
*/
DW_API int dwarf_get_fde_info_for_all_regs3_b(Dwarf_Fde dw_fde,
Dwarf_Addr dw_pc_requested,
Dwarf_Regtable3* dw_reg_table,
Dwarf_Addr* dw_row_pc,
Dwarf_Bool* dw_has_more_rows,
Dwarf_Addr* dw_subsequent_pc,
Dwarf_Error* dw_error);
/*! @brief @brief Return information on frame registers at a given pc value
Identical to dwarf_get_fde_info_for_all_regs3_b() except that
this doesn't output dw_has_more_rows and dw_subsequent_pc.
If you need to iterate through all rows of the FDE, consider
switching to dwarf_get_fde_info_for_all_regs3_b() as it is more
efficient.
*/
DW_API int dwarf_get_fde_info_for_all_regs3(Dwarf_Fde dw_fde,
Dwarf_Addr dw_pc_requested,
Dwarf_Regtable3* dw_reg_table,
@ -5362,9 +5516,9 @@ DW_API int dwarf_get_fde_info_for_all_regs3(Dwarf_Fde dw_fde,
/* See discussion of dw_value_type, libdwarf.h. */
/*! @brief Return details about a particular pc and register.
It is inefficient to iterate across all table_columns (registers)
It is efficient to iterate across all table_columns (registers)
using this function (dwarf_get_fde_info_for_reg3_c()).
Instead call dwarf_get_fde_info_for_all_regs3()
Or one could instead call dwarf_get_fde_info_for_all_regs3()
and index into the table it fills in.
If dw_value_type == DW_EXPR_EXPRESSION or
@ -5374,8 +5528,8 @@ DW_API int dwarf_get_fde_info_for_all_regs3(Dwarf_Fde dw_fde,
on runtime frame data which cannot be calculated
without a stack frame including registers (etc).
dwarf_get_fde_info_for_reg3_c() is new in Septmber 2023
to correct the incorrect type of the dw_offset
dwarf_get_fde_info_for_reg3_c() is new in libdwarf 0.8.0.
It corrects the incorrect type of the dw_offset
argument in dwarf_get_fde_info_for_reg3_b().
Both versions operate correctly.
@ -5396,7 +5550,7 @@ DW_API int dwarf_get_fde_info_for_all_regs3(Dwarf_Fde dw_fde,
On success returns a register number.
@param dw_offset
On success returns a signed register offset value when
dw_value_tyoe is DW_EXPR_OFFSET or DW_EXPER_VAL_OFFSET.
dw_value_type is DW_EXPR_OFFSET or DW_EXPER_VAL_OFFSET.
@param dw_block_content
On success returns a pointer to a block.
For example, for DW_EXPR_EXPRESSION the block
@ -5456,11 +5610,11 @@ DW_API int dwarf_get_fde_info_for_reg3_b(Dwarf_Fde dw_fde,
/*! @brief Get the value of the CFA for a particular pc value
@see dwarf_get_fde_info_for_reg3_c
@see dwarf_get_fde_info_for_reg3_c()
has essentially the same return values as
dwarf_get_fde_info_for_reg3_c but
it refers to the CFA (which is not part of the register
table) so function has no table column argument.
table) so this function has no table column argument.
New in September 2023, release 0.8.0.
dwarf_get_fde_info_for_cfa_reg3_c() returns dw_offset
@ -6370,8 +6524,8 @@ DW_API int dwarf_get_debug_sup(Dwarf_Debug dw_dbg,
/*! @defgroup debugnames Fast Access to .debug_names DWARF5
@{
The section is new in DWARF5 supersedes .debug_pubnames and
.debug_pubtypes in DWARF2, DWARF3, and DWARF4.
The section is new in DWARF5 and supersedes .debug_pubnames
and .debug_pubtypes in DWARF2, DWARF3, and DWARF4.
The functions provide a detailed reporting
of the content and structure of the table (so one
@ -7235,7 +7389,7 @@ DW_API int dwarf_get_gnu_index_block(Dwarf_Gnu_Index_Head dw_head,
@param dw_head
Pass in the Dwarf_Gnu_Index_head interest.
@param dw_number
@param dw_blocknumber
Pass in the block number of the block of interest.
0 through dw_index_block_count_out-1.
@param dw_entrynumber
@ -7878,7 +8032,17 @@ DW_API int dwarf_get_debugfission_for_key(Dwarf_Debug dw_dbg,
such arguments. Useful if you only care about some
of the data potentially returned.
Caller frees space returned by debuglink_fullpath_returned.
If dw_debuglink_fullpath returned is set by
the call the space allocated must be freed
by the caller with free(dw_debuglink_fullpath_returned).
if dw_debuglink_paths_returned is set by the call
the space allocated must be free by
the caller with free(dw_debuglink_paths_returned).
dwarf_finish() will not free strings
dw_debuglink_fullpath_returned or
dw_debuglink_paths_returned.
@param dw_dbg
The Dwarf_Debug of interest.
@ -7896,7 +8060,6 @@ DW_API int dwarf_get_debugfission_for_key(Dwarf_Debug dw_dbg,
@param dw_debuglink_path_length_returned
On success returns the strlen() of
dw_debuglink_fullpath_returned .
@param dw_buildid_type_returned
On success returns a pointer to integer with
a type code. See the buildid definition.
@ -7910,11 +8073,12 @@ DW_API int dwarf_get_debugfission_for_key(Dwarf_Debug dw_dbg,
On success this is set to the length of the
set of bytes pointed to by dw_buildid_returned .
@param dw_paths_returned
On success returns a pointer to an array of
On success sets a pointer to an array of
pointers to strings, each with a global path.
It actually points to an array of pointers
followed by a blob of strings, and freeing
all of that just means calling free(dw_paths_returned).
These strings must be freed by the caller,
dwarf_finish() will not free these strings.
Call free(dw_paths_returned).
@param dw_paths_length_returned
On success returns the length of the array of string
pointers dw_paths_returned points at.
@ -8351,6 +8515,11 @@ DW_API int dwarf_get_FORM_CLASS_name(enum Dwarf_Form_Class dw_fc,
/*! @defgroup objectsections Object Sections Data
@{
These functions are not often used. They
give access to section- and objectfile-related
information, and that sort of information
is not generally needed to understand DWARF content..
Section name access. Because names sections
such as .debug_info might
end with .dwo or be .zdebug or might not.
@ -8364,6 +8533,14 @@ DW_API int dwarf_get_FORM_CLASS_name(enum Dwarf_Form_Class dw_fc,
MacOS puts in its object sections (which
the MacOS reader translates).
These calls returning selected object header
{machine architecture,flags)
and section (offset, flags) data
are not of interest to most library callers:
dwarf_machine_architecture(),
dwarf_get_section_info_by_index_a(), and
dwarf_get_section_info_by_name_a().
The simple calls will not be documented in full detail here.
*/
@ -8497,15 +8674,16 @@ DW_API int dwarf_get_ranges_section_name(Dwarf_Debug dw_dbg,
This is not from DWARF information, it is
from object file headers.
*/
DW_API int dwarf_get_offset_size(Dwarf_Debug /*dbg*/,
DW_API int dwarf_get_offset_size(Dwarf_Debug dw_dbg,
Dwarf_Half * dw_offset_size,
Dwarf_Error * dw_error);
/*! @brief Get the address size as defined by the object
This is not from DWARF information, it is
from object file headers.
*/
DW_API int dwarf_get_address_size(Dwarf_Debug /*dbg*/,
DW_API int dwarf_get_address_size(Dwarf_Debug dw_dbg,
Dwarf_Half * dw_addr_size,
Dwarf_Error * dw_error);
@ -8540,7 +8718,20 @@ DW_API int dwarf_get_line_section_name_from_die(Dwarf_Die dw_die,
const char ** dw_section_name_out,
Dwarf_Error * dw_error);
/*! @brief Given a section name, get its size and address
/*! @brief Given a section name, get its size, address, etc
New in v0.9.0 November 2023.
This is not often used and is completely
unnecessary for most to call.
See dwarf_get_section_info_by_name() for the
older and still current version.
Any of the pointers
dw_section_addr, dw_section_size, dw_section_flags,
and dw_section_offset may be passed in as zero
and those will be ignored by the function.
@param dw_dbg
The Dwarf_Debug of interest.
@ -8553,18 +8744,61 @@ DW_API int dwarf_get_line_section_name_from_die(Dwarf_Die dw_die,
@param dw_section_size
On success returns the section size as defined
by an object header.
@param dw_section_flags
On success returns the section flags as defined
by an object header.
The flag meaning depends on which object format
is being read and the meaning is defined by
the object format.
We hope it is of some use.
In PE object files this
field is called @b Characteristics.
@param dw_section_offset
On success returns the section offset as defined
by an object header.
The offset meaning is supposedly an object file offset
but the meaning depends on the object file type(!).
We hope it is of some use.
@param dw_error
On error returns the usual error pointer.
@return
Returns DW_DLV_OK etc.
*/
DW_API int dwarf_get_section_info_by_name_a(Dwarf_Debug dw_dbg,
const char * dw_section_name,
Dwarf_Addr * dw_section_addr,
Dwarf_Unsigned* dw_section_size,
Dwarf_Unsigned* dw_section_flags,
Dwarf_Unsigned* dw_section_offset,
Dwarf_Error * dw_error);
/*! @brief Given a section name, get its size and address
See dwarf_get_section_info_by_name_a() for the
newest version which returns additional values.
Fields and meanings in dwarf_get_section_info_by_name()
are the same as in
dwarf_get_section_info_by_name_a()
except that the arguments dw_section_flags
and dw_section_offset are missing here.
*/
DW_API int dwarf_get_section_info_by_name(Dwarf_Debug dw_dbg,
const char * dw_section_name,
Dwarf_Addr * dw_section_addr,
Dwarf_Unsigned* dw_section_size,
Dwarf_Error * dw_error);
/*! @brief Given a section index, get its size and address
/*! @brief Given a section index, get its size and address, etc
See dwarf_get_section_info_by_index() for the
older and still current version.
Any of the pointers
dw_section_addr, dw_section_size, dw_section_flags,
and dw_section_offset may be passed in as zero
and those will be ignored by the function.
@param dw_dbg
The Dwarf_Debug of interest.
@ -8580,11 +8814,46 @@ DW_API int dwarf_get_section_info_by_name(Dwarf_Debug dw_dbg,
@param dw_section_size
On success returns the section size as defined
by an object header.
@param dw_section_flags
On success returns the section flags as defined
by an object header.
The flag meaning depends on which object format
is being read and the meaning is defined by
the object format. In PE object files this
field is called @b Characteristics.
We hope it is of some use.
@param dw_section_offset
On success returns the section offset as defined
by an object header.
The offset meaning is supposedly an object file offset
but the meaning depends on the object file type(!).
We hope it is of some use.
@param dw_error
On error returns the usual error pointer.
@return
Returns DW_DLV_OK etc.
*/
DW_API int dwarf_get_section_info_by_index_a(Dwarf_Debug dw_dbg,
int dw_section_index,
const char ** dw_section_name,
Dwarf_Addr* dw_section_addr,
Dwarf_Unsigned* dw_section_size,
Dwarf_Unsigned* dw_section_flags,
Dwarf_Unsigned* dw_section_offset,
Dwarf_Error* dw_error);
/*! @brief Given a section index, get its size and address
See dwarf_get_section_info_by_index_a() for the
newest version which returns additional values.
Fields and meanings in dwarf_get_section_info_by_index()
are the same as in
dwarf_get_section_info_by_index_a()
except that the arguments dw_section_flags
and dw_section_offset are missing here.
*/
DW_API int dwarf_get_section_info_by_index(Dwarf_Debug dw_dbg,
int dw_section_index,
const char ** dw_section_name,
@ -8592,6 +8861,95 @@ DW_API int dwarf_get_section_info_by_index(Dwarf_Debug dw_dbg,
Dwarf_Unsigned* dw_section_size,
Dwarf_Error* dw_error);
/*! @brief Get basic object information from Dwarf_Debug
Not all the fields here are relevant for all object
types, and the dw_obj_machine and dw_obj_flags
have ABI-defined values which have nothing to do
with DWARF.
dwarf_ub_offset, dw_ub_count, dw_ub_index only
apply to DW_FTYPE_APPLEUNIVERSAL.
dw_comdat_groupnumber only applies to DW_FTYPE_ELF.
Other than dw_dbg one can pass in NULL for any
pointer parameter whose value is not of interest.
@param dw_dbg
The Dwarf_Debug of interest.
@param dw_ftype
Pass in a pointer. On success the value
pointed to will be set to the the applicable
DW_FTYPE value (see libdwarf.h).
@param dw_obj_pointersize
Pass in a pointer. On success the value
pointed to will be set to the the applicable
pointer size, which is almost always either 4 or 8.
@param dw_obj_is_big_endian
Pass in a pointer. On success the value
pointed to will be set to either 1 (the object being
read is big-endia) or 0 (the object being read is
little-endian.
@param dw_obj_machine
Pass in a pointer. On success the value
pointed to will be set to a value that
the specific ABI uses for the machine-architecture
the object file says it is for.
@param dw_obj_flags
Pass in a pointer. On success the value
pointed to will be set to a value that
the specific ABI uses for a header record
flags word (in a PE object the flags word is
called @b Characteristics ).
@param dw_path_source
Pass in a pointer. On success the value
pointed to will be set to a value that
libdwarf sets to a DW_PATHSOURCE value
indicating what caused the file path.
@param dw_ub_offset
Pass in a pointer. On success
if the value of dw_ftype is DW_FTYPE_APPLEUNIVERSAL
the returned value will be set to the count
(in all other cases, the value is set to 0)
@param dw_ub_count
Pass in a pointer. On success
if the value of dw_ftype is DW_FTYPE_APPLEUNIVERSAL
the returned value will be set to the number
of object files in the binary
(in all other cases, the value is set to 0)
@param dw_ub_index
Pass in a pointer. On success
if the value of dw_ftype is DW_FTYPE_APPLEUNIVERSAL
the returned value will be set to the number
of the specific object from the universal-binary,
usable values are 0 through dw_ub_count-1.
(in all other cases, the value is set to 0)
@param dw_comdat_groupnumber
Pass in a pointer. On success
if the value of dw_ftype is DW_FTYPE_ELF
the returned value will be the comdat group
being referenced.
(in all other cases, the value is set to 0)
@return
Returns DW_DLV_NO_ENTRY if the Dwarf_Debug passed in
is null or stale. Otherwise returns DW_DLV_OK
and non-null return-value pointers will have
meaningful data.
*/
DW_API int dwarf_machine_architecture(Dwarf_Debug dw_dbg,
Dwarf_Small *dw_ftype,
Dwarf_Small *dw_obj_pointersize,
Dwarf_Bool *dw_obj_is_big_endian,
Dwarf_Unsigned *dw_obj_machine, /*architecture*/
Dwarf_Unsigned *dw_obj_flags,
Dwarf_Small *dw_path_source,
Dwarf_Unsigned *dw_ub_offset,
Dwarf_Unsigned *dw_ub_count,
Dwarf_Unsigned *dw_ub_index,
Dwarf_Unsigned *dw_comdat_groupnumber);
/*! @brief Get section count (of object file sections).
*/
DW_API int dwarf_get_section_count(Dwarf_Debug dw_dbg);
@ -8607,10 +8965,12 @@ DW_API int dwarf_get_section_count(Dwarf_Debug dw_dbg);
with MIPSpro 7.3.1.3 toolchain.).
@param dw_dbg
Pass in the Dwarf_Debug of interest.
Pass in a valid Dwarf_Debug of interest.
@return
Always returns DW_DLV_OK.
If the dw_dbg is non-null it returns DW_DLV_OK.
If dw_dbg is NULL it returns DW_DLV_NO_ENTRY.
*/
DW_API int dwarf_get_section_max_offsets_d(Dwarf_Debug dw_dbg,
Dwarf_Unsigned * dw_debug_info_size,
@ -8641,6 +9001,11 @@ DW_API int dwarf_get_section_max_offsets_d(Dwarf_Debug dw_dbg,
/*! @defgroup secgroups Section Groups Objectfile Data
@{
Section Groups are defined in the extended
Elf ABI and are usually seen in relocatable
Elf object files.
@link dwsec_sectiongroup Section Groups Overview @endlink
*/
@ -8948,6 +9313,11 @@ DW_API int dwarf_get_universalbinary_count(
actually opening a Dwarf_Debug.
These are crucial for libdwarf itself.
The dw_ftype returned is one of
DW_FTYPE_APPLEUNIVERSAL
DW_FTYPE_MACH_O
DW_FTYPE_ELF
DW_FTYPE_PE
*/
DW_API int dwarf_object_detector_path_b(const char * dw_path,

91
src/lib/libdwarf/meson.build vendored
View File

@ -64,15 +64,90 @@ libdwarf_src = [
zlib_deps = dependency('zlib', method: 'pkg-config', required: false)
libzstd_deps = dependency('libzstd', method: 'pkg-config', required: false)
if zlib_deps.found() == true
# set10 means set to 1 or 0. Ref man, see cfg_data.set10
# A variation on set().
config_h.set10('HAVE_ZLIB', true)
config_h.set10('HAVE_ZLIB_H', true)
if zlib_deps.found()
message(['mesondebug found base zlib',zlib_deps.found()])
endif
if libzstd_deps.found() == true
config_h.set10('HAVE_ZSTD', true)
config_h.set10('HAVE_ZSTD_H', true)
if libzstd_deps.found()
message(['mesondebug found base libzstd',libzstd_deps.found()])
endif
if zlib_deps.found()
message(['mesondebug found base zlib',zlib_deps.found()])
else
if fs.is_dir('/opt/local/lib') and fs.is_file('/opt/local/include/zlib.h')
message(['mesondebug /opt/local/include/zlib.h exists'])
zlib_deps = declare_dependency(link_args: [ '-L/opt/local/lib','-lz' ],
include_directories: ['/opt/local/include'])
message(['mesondebug zlib in /opt/local',zlib_deps.found()])
endif
endif
if libzstd_deps.found()
message(['mesondebug found base libzstd',libzstd_deps.found()])
else
if fs.is_dir('/opt/local/lib') and fs.is_file('/opt/local/include/zstd.h')
message(['mesondebug /opt/local/include/zstd.h exists'])
libzstd_deps = declare_dependency(link_args: ['-L/opt/local/lib','-lzstd' ],
include_directories: ['/opt/local/include'])
message(['mesondebug zstd in /opt/local', libzstd_deps.found()])
endif
endif
if zlib_deps.found()
message(['Have zlib'])
else
if fs.is_dir('/usr/local/lib') and fs.is_file('/usr/local/include/zlib.h')
message(['mesondebug /usr/local/include/zlib.h exists'])
zlib_deps = declare_dependency(link_args: [ '-L/usr/local/lib','-lz' ],
include_directories: ['/usr/local/include'])
message(['mesondebug zlib in /usr/local',zlib_deps.found()])
endif
endif
if libzstd_deps.found()
message(['Have libzstd'])
else
if fs.is_dir('/usr/local/lib') and fs.is_file('/usr/local/include/zstd.h')
message(['mesondebug /usr/local/include/zstd.h exists'])
libzstd_deps = declare_dependency(link_args: [ '-L/usr/local/lib',
'-lzstd' ],
include_directories: ['/usr/local/include'])
message(['mesondebug zstd in /usr/local',libzstd_deps.found()])
endif
endif
if zlib_deps.found()
if libzstd_deps.found()
message('mesondebug Have zlib and libzstd')
config_h.set10('HAVE_ZSTD_H',true)
config_h.set10('HAVE_ZSTD',true)
config_h.set10('HAVE_ZLIB_H',true)
config_h.set10('HAVE_ZLIB',true)
else
config_h.set10('HAVE_ZLIB_H',false)
config_h.set10('HAVE_ZLIB',false)
zlib_deps = dependency('',required: false)
if zlib_deps.found()
error('mesondebug libdwarf error zlib')
endif
message('mesondebug no libzstd, set zlib_deps', zlib_deps.found())
message('mesondebug Since builds and tests both ')
message('mesondebug leaving zlib set will be ignored in build and test')
endif
else
if libzstd_deps.found()
config_h.set10('HAVE_ZSTD_H',false)
config_h.set10('HAVE_ZSTD',false)
libszstd_deps = dependency('',required: false)
if libzstd_deps.found()
error('mesondebug libdwarf error libzstd')
endif
message('mesondebug no zlib, set libzstd_deps',libzstd_deps.found())
message('mesondebug Since builds and tests want both')
message('mesondebug leaving libzstd set will be ignored in build and test')
else
message('mesondebug found neither zlib nor libzstd')
endif
endif
if (lib_type == 'shared')