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gdb with python support integration

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This commits enables gdb's python support. In order to make it work, we
had to create a python fork with some patches to the buildsystem, and
also had to patch gdb as well.
This commit is contained in:
Guy Shimko 2024-12-04 21:26:00 +02:00
parent dc882d9598
commit b4c559e7d4
6 changed files with 96 additions and 153 deletions
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7
Dockerfile
View File

@ -2,6 +2,9 @@ FROM ubuntu:24.04
# Install dependencies
RUN apt update && apt install -y \
bison \
file \
flex \
g++ \
g++-aarch64-linux-gnu \
g++-arm-linux-gnueabi \
@ -14,10 +17,14 @@ RUN apt update && apt install -y \
gcc-mips-linux-gnu \
gcc-mipsel-linux-gnu \
gcc-powerpc-linux-gnu \
git \
libncurses-dev \
m4 \
make \
patch \
pkg-config \
python3.12 \
libpython3-dev \
texinfo \
wget \
xz-utils

14
Makefile
View File

@ -2,7 +2,7 @@ ARCHS := x86_64 arm aarch64 powerpc mips mipsel
TARGETS := $(addprefix build-, $(ARCHS))
PACK_TARGETS := $(addprefix pack-, $(ARCHS))
.PHONY: clean help download_packages build patch-gdb build-docker-image $(TARGETS) $(PACK_TARGETS)
.PHONY: clean help download_packages build build-docker-image $(TARGETS) $(PACK_TARGETS)
help:
@echo "Usage:"
@ -32,21 +32,13 @@ build/download-packages.stamp: build/build-docker-image.stamp src/download_packa
download-packages: build/download-packages.stamp
build/patch-gdb.stamp: build/build-docker-image.stamp src/gdb_static.patch build/download-packages.stamp
docker run --user $(shell id -u):$(shell id -g) \
--rm --volume .:/app/gdb gdb-static env TERM=xterm-256color \
/app/gdb/src/patch_gdb.sh /app/gdb/build/packages/gdb /app/gdb/src/gdb_static.patch
touch build/patch-gdb.stamp
patch-gdb: build/patch-gdb.stamp
build: $(TARGETS)
$(TARGETS): build-%: download-packages patch-gdb build-docker-image
$(TARGETS): build-%: download-packages build-docker-image
mkdir -p build
docker run --user $(shell id -u):$(shell id -g) \
--rm --volume .:/app/gdb gdb-static env TERM=xterm-256color \
/app/gdb/src/build.sh $* /app/gdb/build/ /app/gdb/src/gdb_static.patch
/app/gdb/src/build.sh $* /app/gdb/build/ /app/gdb/src
pack: $(PACK_TARGETS)

87
src/build.sh
View File

@ -2,7 +2,7 @@
# Include utils library
script_dir=$(dirname "$0")
. "$script_dir/utils.sh"
source "$script_dir/utils.sh"
function set_compliation_variables() {
# Set compilation variables such as which compiler to use.
@ -208,6 +208,64 @@ function build_ncurses() {
popd > /dev/null
}
function build_python() {
# Build python.
#
# Parameters:
# $1: python package directory
# $2: target architecture
#
# Echoes:
# The python build directory
#
# Returns:
# 0: success
# 1: failure
local python_dir="$1"
local target_arch="$2"
local python_lib_dir="$(realpath "$python_dir/build-$target_arch")"
echo "$python_lib_dir"
mkdir -p "$python_lib_dir"
# Having a python-config file is an indication that we successfully built python.
if [[ -f "$python_lib_dir/python-config" ]]; then
>&2 echo "Skipping build: libpython already built for $target_arch"
return 0
fi
pushd "$python_lib_dir" > /dev/null
>&2 fancy_title "Building python for $target_arch"
export LINKFORSHARED=" "
export MODULE_BUILDTYPE="static"
export CONFIG_SITE="$python_dir/config.site-static"
>&2 CFLAGS="-static" LDFLAGS="-static" ../configure \
--prefix=$(realpath .) \
--disable-test-modules \
--with-ensurepip=no \
--without-decimal-contextvar \
--build=x86_64-pc-linux-gnu \
--host=$HOST \
--with-build-python=/usr/bin/python3.12 \
--disable-ipv6 \
--disable-shared
>&2 make -j $(nproc)
if [[ $? -ne 0 ]]; then
return 1
fi
# Install python (in build dir using the prefix set above), in order to have a bash (for cross-compilation) python3-config that works.
>&2 make install
if [[ $? -ne 0 ]]; then
return 1
fi
>&2 fancy_title "Finished building python for $target_arch"
popd > /dev/null
}
function build_libmpfr() {
# Build libmpfr.
#
@ -298,7 +356,8 @@ function build_gdb() {
>&2 fancy_title "Building gdb for $target_arch"
../configure --enable-static --enable-tui --with-static-standard-libraries --disable-inprocess-agent \
../configure -C --enable-static --with-static-standard-libraries --disable-inprocess-agent \
--enable-tui --with-python=/app/gdb/build/packages/cpython-static/build-$target_arch/bin/python3-config \
"--with-libiconv-prefix=$libiconv_prefix" --with-libiconv-type=static \
"--with-gmp=$libgmp_prefix" \
"--with-mpfr=$libmpfr_prefix" \
@ -395,9 +454,11 @@ function build_gdb_with_dependencies() {
# Parameters:
# $1: target architecture
# $2: build directory
# $3: src directory
local target_arch="$1"
local build_dir="$2"
local source_dir="$3"
local packages_dir="$build_dir/packages"
local artifacts_dir="$build_dir/artifacts"
@ -427,15 +488,19 @@ function build_gdb_with_dependencies() {
if [[ $? -ne 0 ]]; then
return 1
fi
set_ncurses_link_variables "$ncursesw_build_dir"
build_and_install_gdb "$packages_dir/gdb" \
"$iconv_build_dir/lib/.libs/" \
"$gmp_build_dir/.libs/" \
"$mpfr_build_dir/src/.libs/" \
"$artifacts_dir" \
"$target_arch"
python_build_dir="$(build_python "$packages_dir/cpython-static" "$target_arch")"
if [[ $? -ne 0 ]]; then
return 1
fi
build_and_install_gdb "$packages_dir/binutils-gdb" \
"$iconv_build_dir/lib/.libs/" \
"$gmp_build_dir/.libs/" \
"$mpfr_build_dir/src/.libs/" \
"$artifacts_dir" \
"$target_arch"
if [[ $? -ne 0 ]]; then
return 1
fi
@ -443,11 +508,11 @@ function build_gdb_with_dependencies() {
function main() {
if [[ $# -ne 3 ]]; then
>&2 echo "Usage: $0 <target_arch> <build_dir>"
>&2 echo "Usage: $0 <target_arch> <build_dir> <src_dir>"
exit 1
fi
build_gdb_with_dependencies "$1" "$2"
build_gdb_with_dependencies "$1" "$2" "$3"
if [[ $? -ne 0 ]]; then
>&2 echo "Error: failed to build gdb with dependencies"
exit 1

14
src/download_packages.sh
View File

@ -5,11 +5,10 @@ script_dir=$(dirname "$0")
. "$script_dir/utils.sh"
# List of package URLs to download
PACKAGE_URLS=(
SOURCE_URLS=(
"https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.17.tar.gz"
"https://ftp.gnu.org/pub/gnu/gmp/gmp-6.3.0.tar.xz"
"https://ftp.gnu.org/pub/gnu/mpfr/mpfr-4.2.1.tar.xz"
"https://ftp.gnu.org/gnu/gdb/gdb-15.2.tar.xz"
"https://ftp.gnu.org/pub/gnu/ncurses/ncurses-6.5.tar.gz"
)
@ -188,7 +187,7 @@ function download_gdb_packages() {
fancy_title "Starting download of GDB packages"
for url in "${PACKAGE_URLS[@]}"; do
for url in "${SOURCE_URLS[@]}"; do
package_dir=$(package_url_to_dir "$url")
download_and_extract_package "$url" "$package_dir" &
download_pids+=($!)
@ -202,8 +201,15 @@ function download_gdb_packages() {
fi
done
fancy_title "Finished downloading GDB packages"
if [[ ! -d gdb-static ]]; then
git clone https://github.com/guyush1/binutils-gdb.git --single-branch --branch gdb-static
fi
if [[ ! -d python3.12-static ]]; then
git clone https://github.com/guyush1/cpython-static.git --single-branch --branch python3.12-static
fi
fancy_title "Finished downloading GDB packages"
popd
}

70
src/gdb_static.patch
View File

@ -1,70 +0,0 @@
diff --git a/Makefile.in b/Makefile.in
index f12c251f9c8..eed512b2d18 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -31593,7 +31593,7 @@ configure-readline:
$$s/$$module_srcdir/configure \
--srcdir=$${topdir}/$$module_srcdir \
$(HOST_CONFIGARGS) --build=${build_alias} --host=${host_alias} \
- --target=${target_alias} \
+ --target=${target_alias} --enable-static \
|| exit 1
@endif readline
@@ -40793,7 +40793,7 @@ configure-libcc1:
$$s/$$module_srcdir/configure \
--srcdir=$${topdir}/$$module_srcdir \
$(HOST_CONFIGARGS) --build=${build_alias} --host=${host_alias} \
- --target=${target_alias} --enable-shared \
+ --target=${target_alias} --enable-static --disable-shared \
|| exit 1
@endif libcc1
diff --git a/configure b/configure
index 6466b97f3ec..2ab23dcb81e 100755
--- a/configure
+++ b/configure
@@ -9398,7 +9398,7 @@ case " $configdirs " in
*" lto-plugin "* | *" libcc1 "* | *" gdbserver "*)
# When these are to be built as shared libraries, the same applies to
# libiberty.
- extra_host_libiberty_configure_flags=--enable-shared
+ extra_host_libiberty_configure_flags="--enable-static --disable-shared"
;;
esac
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 84bc54b303e..c81269ced78 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -148,7 +148,7 @@ LIBTOOL = @LIBTOOL@
# Set this up with gcc if you have gnu ld and the loader will print out
# line numbers for undefined references.
#CC_LD = g++ -static
-CC_LD = $(LIBTOOL) $(SILENT_FLAG) --mode=link $(CXX) $(CXX_DIALECT)
+CC_LD = $(LIBTOOL) $(SILENT_FLAG) --mode=link $(CXX) -all-static $(CXX_DIALECT)
# Where is our "include" directory? Typically $(srcdir)/../include.
# This is essentially the header file directory for the library
diff --git a/gdbserver/Makefile.in b/gdbserver/Makefile.in
index 6148ccf9121..2a9c9720d1a 100644
--- a/gdbserver/Makefile.in
+++ b/gdbserver/Makefile.in
@@ -83,7 +83,7 @@ COMPILE = $(ECHO_CXX) $(COMPILE.pre) $(INTERNAL_CFLAGS) $(INCLUDE_SERVER_H) \
# Set this up with gcc if you have gnu ld and the loader will print out
# line numbers for undefinded refs.
#CC_LD = g++ -static
-CC_LD = $(CXX) $(CXX_DIALECT)
+CC_LD = $(CXX) -static $(CXX_DIALECT)
# Where is the "include" directory? Traditionally ../include or ./include
INCLUDE_DIR = ${srcdir}/../include
@@ -405,7 +405,7 @@ IPA_LIB = libinproctrace.so
$(IPA_LIB): $(sort $(IPA_OBJS)) ${CDEPS}
$(SILENCE) rm -f $(IPA_LIB)
- $(ECHO_CXXLD) $(CC_LD) -shared -fPIC -Wl,--soname=$(IPA_LIB) \
+ $(ECHO_CXXLD) $(CC_LD) -static -fPIC -Wl,--soname=$(IPA_LIB) \
-Wl,--no-undefined $(INTERNAL_CFLAGS) $(INTERNAL_LDFLAGS) \
$(CXXFLAGS) \
-o $(IPA_LIB) ${IPA_OBJS} $(LIBIBERTY_FOR_SHLIB) -ldl -pthread

57
src/patch_gdb.sh
View File

@ -1,57 +0,0 @@
#!/bin/bash
# Include utils library
script_dir=$(dirname "$0")
. "$script_dir/utils.sh"
function apply_patch() {
# Apply a patch to a directory.
#
# Parameters:
# $1: directory
# $2: path of patch
#
# Returns:
# 0: success
# 1: failure
local dir="$1"
local patch="$(realpath "$2")"
pushd "$dir" > /dev/null
if [[ $? -ne 0 ]]; then
return 1
fi
# Check if the patch was already applied
if ! patch -p1 --dry-run < "$patch" &>/dev/null; then
>&2 echo "Error: patch already applied"
popd > /dev/null
return 1
fi
patch -p1 < "$patch"
if [[ $? -ne 0 ]]; then
popd > /dev/null
return 1
fi
popd > /dev/null
}
function main() {
if [[ $# -ne 2 ]]; then
>&2 echo "Usage: $0 <gdb_dir> <gdb_patch>"
exit 1
fi
fancy_title "Applying GDB patch"
apply_patch "$1" "$2"
if [[ $? -ne 0 ]]; then
>&2 echo "Error: failed to apply GDB patch"
exit 1
fi
fancy_title "Finished applying GDB patch"
}
main "$@"