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documentation: split & improve the readme file

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This commit splits the readme file into 2 files - the readme which
contains instructions on how to download our latest release, and on how
to use our build scripts in order to quickly build gdb statically. The
second file is a compilation guide that contains explanations on how to
manually compile gdb statically.
This commit is contained in:
Guy Shimko 2024-10-30 22:57:05 +02:00
parent 08909223f2
commit fe4c0763e8
2 changed files with 100 additions and 97 deletions
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106
README.md
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@ -1,8 +1,12 @@
# Repository of static gdb and gdbserver
The statically compiled gdb / gdbserver binaries are avaliable to download under github releases!
## **The statically compiled gdb / gdbserver binaries are avaliable to download under github releases!**
# Compiling gdb using docker
link: [gdb-static github releases](https://github.com/guyush1/gdb-static/releases)
## For manual gdb/gdbserver compilation instructions, have a look at the compilation.md file
## Compiling gdb using docker
This repository contains a dockerfile and build scripts to compile gdb and gdbserver statically for multiple architectures.
Currently, the supported architectures are:
@ -14,7 +18,7 @@ You can easily expand it to support more architectures by adding the appropriate
NOTE: You don't need to interact with the dockerfile directly, as the Makefile will take care of everything for you.
## Building for a specific architecture
### Building for a specific architecture
To build for a specific architecture, you can use the following command:
```bash
@ -35,108 +39,16 @@ build/
...
```
## Building for all architectures
### Building for all architectures
To build for all architectures, you can use the following command:
```bash
make build
```
## Cleaning the build
### Cleaning the build
To clean the build, you can use the following command:
```bash
make clean
```
# Notes about this file - read before proceeding!
While i already provided the gdb/gdbserver-15 statically compiled binaries handed out to you, some people might want to compile it to a different architecture, or compile a newer version of gdb in the future :). This rest of the file contains my compilation documentation so that you could save yourself some time and do it yourself, if you wish.
## <VARAIBLES> in the script
When specifying the compilation dir throughout the compilation process (specified as <COMPILATION_DIR_PATH> in this file), DO NOT use relative pathing, or bash characters such as `~`. They will not get parsed correctly! Instead, use absolute paths only.
Examples to the <VARIABLES> throughout the script:
<CROSS_COMPILER_C> - arm-linux-gnueabi-gcc
<CROSS_COMPILER_CPP> - arm-linux-gnueabi-g++
<HOST_NAME> - arm-linux-gnueabi
<COMPILATION_DIR_PATH> - /home/username/projects/libgmp-x.y.z/build-arm/
Environment info:
- glibc version: 2.39-0ubuntu8.3 (NOTE: When i compiled gdb-15 using an older glibc, such as the one i had in my ubuntu-20.04 machine, i received a segfault in gdb...).
# Compiling gdb statically to the host platform
## 1) Compiling iconv
While compiling iconv is not a must, the libc-provided iconv (a utility to convert between encodings) may fail on different architectures,
at least in my experiance. Thus, I recommended using a custom libiconv and compiling it into gdb.
Download the source from https://github.com/roboticslibrary/libiconv.git
Make sure to check out to a stable tag (in my case - v1.17).
Work according to the following steps:
I) run `./gitsub.sh pull`
II) run `./autogen.sh` to create the configure script from configure.sh.
III) create a build dir (e.g build), and then cd into it.
IV) run `../configure --enable-static`
V) run `cp -r ./include ./lib/.libs/`
VI) run `mkdir ./lib/.libs/lib/`
VII) run `cp ./lib/.libs/libiconv.a ./lib/.libs/lib/`
## 2) Compiling gdb
Clone gdb from sourceware - https://sourceware.org/git/binutils-gdb.git.
I checked out to the 15.2 tag.
Work according to the following steps:
I) Apply my patches (gdb_static.patch). If you are not on the exact tag i used (15.2) - you might need to apply them manually, and change some stuff.
II) create a build dir.
III) run `../configure --enable-static --with-static-standard-libraries --disable-tui --disable-inprocess-agent --with-libiconv-prefix=<COMPILATION_DIR_PATH>/lib/.libs/ --with-libiconv-type=static`
IV) run `make all-gdb -j$(nproc)` - for gdbserver, run `make all-gdbserver -j$(nproc)`.
gdb will sit under gdb/gdb.
gdbserver will sit under gdbserver/gdbserver.
# Cross compiling gdb statically to other architectures.
Cross compiling gdb statically is a bit more complicated then regular static compilation. In order to cross compile gdb statically, we will need to compile libgmp and libmpfr as well as iconv.
## 1) Compiling iconv
Work according to the same process as described under the compilation to the host platform, aside from the configure script:
IV) run `../configure --enable-static CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --host=<HOST_NAME>`
## 2) Compiling libgmp
Download and extract the latest edition from https://gmplib.org/.
I used the 6.3.0 edition.
Work according to the following steps:
I) Create a build dir and cd into it.
II) run `../configure CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --enable-static --host=<HOST_NAME>`
III) run `make -j$(nproc)`
IV) run `mkdir ./.libs/include/`
V) run `cp gmp.h ./.libs/include/`
VI) run `mkdir ./.libs/lib`
VII) run `cp ./.libs/libgmp.a ./.libs/lib`
## 3) Compiling libmpfr
Download and extract the latest edition from https://www.mpfr.org/.
I used the 4.2.1 edition.
Work according to the following steps:
I) Create a build dir and cd into it.
II) run `../configure CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --enable-static --with-gmp-build=<COMPILATION_DIR_PATH> --host=<HOST_NAME>`
III) run `make -j$(nproc)`
IV) run `mkdir ./src/.libs/lib`
V) run `cp ./src/.libs/libmpfr.a ./src/.libs/lib`
VI) run `mkdir ./src/.libs/include`
VII) run `cp ../src/mpfr.h ./src/.libs/include/`
## 4) Compiling gdb
Work according to the same process as described under the compilation to the host platform, aside from the configure script:
III) run `../configure --enable-static --with-static-standard-libraries --disable-tui --disable-inprocess-agent --with-libiconv-prefix=<COMPILATION_DIR_PATH>/lib/.libs/ --with-libiconv-type=static --with-gmp=<COMPILATION_DIR_PATH>/.libs/ --with-mpfr=<COMPILATION_DIR_PATH>/src/.libs/ CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --host=<HOST_NAME>`

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@ -0,0 +1,91 @@
# Notes about this file - read before proceeding!
While i have already provided the gdb/gdbserver-15 statically compiled binaries for you, some people might want to compile it to a different architecture (without our build scripts), or compile a newer version of gdb in the future :). The rest of the file contains a documentation of the compilation process, in order to help you out.
## <VARAIBLES> in the script
When specifying the compilation dir throughout the compilation process (specified as <COMPILATION_DIR_PATH> in this file), DO NOT use relative pathing, or bash characters such as `~`. They will not get parsed correctly! Instead, use absolute paths only.
Examples to the <VARIABLES> throughout the script:
<CROSS_COMPILER_C> - arm-linux-gnueabi-gcc
<CROSS_COMPILER_CPP> - arm-linux-gnueabi-g++
<HOST_NAME> - arm-linux-gnueabi
<COMPILATION_DIR_PATH> - /home/username/projects/libgmp-x.y.z/build-arm/
Environment info:
- glibc version: 2.39-0ubuntu8.3 (NOTE: When i compiled gdb-15 using an older glibc, such as the one i had in my ubuntu-20.04 machine, i received a segfault in gdb...).
# Compiling gdb statically to the host platform
## 1) Compiling iconv
While compiling iconv is not a must, the libc-provided iconv (a utility to convert between encodings) may fail on different architectures,
at least in my experiance. Thus, I recommended using a custom libiconv and compiling it into gdb.
Download the source from https://github.com/roboticslibrary/libiconv.git
Make sure to check out to a stable tag (in my case - v1.17).
Work according to the following steps:
I) run `./gitsub.sh pull`
II) run `./autogen.sh` to create the configure script from configure.sh.
III) create a build dir (e.g build), and then cd into it.
IV) run `../configure --enable-static`
V) run `cp -r ./include ./lib/.libs/`
VI) run `mkdir ./lib/.libs/lib/`
VII) run `cp ./lib/.libs/libiconv.a ./lib/.libs/lib/`
## 2) Compiling gdb
Clone gdb from sourceware - https://sourceware.org/git/binutils-gdb.git.
I checked out to the 15.2 tag.
Work according to the following steps:
I) Apply my patches (gdb_static.patch). If you are not on the exact tag i used (15.2) - you might need to apply them manually, and change some stuff.
II) create a build dir.
III) run `../configure --enable-static --with-static-standard-libraries --disable-tui --disable-inprocess-agent --with-libiconv-prefix=<COMPILATION_DIR_PATH>/lib/.libs/ --with-libiconv-type=static`
IV) run `make all-gdb -j$(nproc)` - for gdbserver, run `make all-gdbserver -j$(nproc)`.
gdb will sit under gdb/gdb.
gdbserver will sit under gdbserver/gdbserver.
# Cross compiling gdb statically to other architectures.
Cross compiling gdb statically is a bit more complicated then regular static compilation. In order to cross compile gdb statically, we will need to compile libgmp and libmpfr as well as iconv.
## 1) Compiling iconv
Work according to the same process as described under the compilation to the host platform, aside from the configure script:
IV) run `../configure --enable-static CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --host=<HOST_NAME>`
## 2) Compiling libgmp
Download and extract the latest edition from https://gmplib.org/.
I used the 6.3.0 edition.
Work according to the following steps:
I) Create a build dir and cd into it.
II) run `../configure CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --enable-static --host=<HOST_NAME>`
III) run `make -j$(nproc)`
IV) run `mkdir ./.libs/include/`
V) run `cp gmp.h ./.libs/include/`
VI) run `mkdir ./.libs/lib`
VII) run `cp ./.libs/libgmp.a ./.libs/lib`
## 3) Compiling libmpfr
Download and extract the latest edition from https://www.mpfr.org/.
I used the 4.2.1 edition.
Work according to the following steps:
I) Create a build dir and cd into it.
II) run `../configure CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --enable-static --with-gmp-build=<COMPILATION_DIR_PATH> --host=<HOST_NAME>`
III) run `make -j$(nproc)`
IV) run `mkdir ./src/.libs/lib`
V) run `cp ./src/.libs/libmpfr.a ./src/.libs/lib`
VI) run `mkdir ./src/.libs/include`
VII) run `cp ../src/mpfr.h ./src/.libs/include/`
## 4) Compiling gdb
Work according to the same process as described under the compilation to the host platform, aside from the configure script:
III) run `../configure --enable-static --with-static-standard-libraries --disable-tui --disable-inprocess-agent --with-libiconv-prefix=<COMPILATION_DIR_PATH>/lib/.libs/ --with-libiconv-type=static --with-gmp=<COMPILATION_DIR_PATH>/.libs/ --with-mpfr=<COMPILATION_DIR_PATH>/src/.libs/ CC=<CROSS_COMPILER_C> CXX=<CROSS_COMPILER_CPP> --host=<HOST_NAME>`