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author | Fangrui Song <maskray@google.com> | 2022-09-26 19:50:13 -0700 |
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committer | Arsen Arsenović <arsen@gcc.gnu.org> | 2023-08-07 22:59:37 +0200 |
commit | 407a2c9abd3dc3ebde0443980bdacbdf83a98374 (patch) | |
tree | f593a1063ea276c7c89d2f5bb3149cf1f8a2f902 /test-driver | |
parent | a885ec2485bed6549ab9384a455433f3fd547603 (diff) | |
download | gcc-407a2c9abd3dc3ebde0443980bdacbdf83a98374.zip gcc-407a2c9abd3dc3ebde0443980bdacbdf83a98374.tar.gz gcc-407a2c9abd3dc3ebde0443980bdacbdf83a98374.tar.bz2 |
binutils, gdb: support zstd compressed debug sections
PR29397 PR29563: Add new configure option --with-zstd which defaults to
auto. If pkgconfig/libzstd.pc is found, define HAVE_ZSTD and support
zstd compressed debug sections for most tools.
* bfd: for addr2line, objdump --dwarf, gdb, etc
* gas: support --compress-debug-sections=zstd
* ld: support ELFCOMPRESS_ZSTD input and --compress-debug-sections=zstd
* objcopy: support ELFCOMPRESS_ZSTD input for
--decompress-debug-sections and --compress-debug-sections=zstd
* gdb: support ELFCOMPRESS_ZSTD input. The bfd change references zstd
symbols, so gdb has to link against -lzstd in this patch.
If zstd is not supported, ELFCOMPRESS_ZSTD input triggers an error. We
can avoid HAVE_ZSTD if binutils-gdb imports zstd/ like zlib/, but this
is too heavyweight, so don't do it for now.
```
% ld/ld-new a.o
ld/ld-new: a.o: section .debug_abbrev is compressed with zstd, but BFD is not built with zstd support
...
% ld/ld-new a.o --compress-debug-sections=zstd
ld/ld-new: --compress-debug-sections=zstd: ld is not built with zstd support
% binutils/objcopy --compress-debug-sections=zstd a.o b.o
binutils/objcopy: --compress-debug-sections=zstd: binutils is not built with zstd support
% binutils/objcopy b.o --decompress-debug-sections
binutils/objcopy: zstd.o: section .debug_abbrev is compressed with zstd, but BFD is not built with zstd support
...
```
config/ChangeLog:
* zstd.m4: New file.
ChangeLog:
* configure: Regenerate.
* configure.ac: Add --with-zstd.
Diffstat (limited to 'test-driver')
0 files changed, 0 insertions, 0 deletions