Old versions of llvm-readelf didn't have parens in its output for `-d`.
So instead of looking for parens, look for word boundaries.
Differential Revision: https://phabricator.services.mozilla.com/D188897
Elfhack is the main reason we're not using lld on Linux/Android
shippable builds, because the way it works doesn't go well with how lld
lays out ELF binaries. By leveraging the linker itself (BFD and lld both
having recently gained the ability to generate the compact relocation
info themselves), we can achieve a similar result to what elfhack is
doing, while allowing to use lld.
See more in-depth background on https://glandium.org/blog/?p=4297
Differential Revision: https://phabricator.services.mozilla.com/D187089
Elfhack acts as a linker, and it uses the `elf_header` symbol to point
at the ELF header in the injected code that applies relocations.
Both GNU ld and lld expose a `__ehdr_start` symbol with the same meaning,
so rename the `elf_header` symbol for compatibility. This will allow to
reuse the code in the upcoming replacement for elfhack.
Differential Revision: https://phabricator.services.mozilla.com/D187088
Because it bumps the alignment requirement on aarch64, we make the
elfhack test create more relocations to make the .rela.dyn section large
enough for the test to pass.
Differential Revision: https://phabricator.services.mozilla.com/D181684
I'm pretty sure there are other theoretical problems in the code,
notably when a single section is larger than 4GB, but by the time
we reach that limit, bug 1839740 will have been fixed.
Differential Revision: https://phabricator.services.mozilla.com/D182447
Bug 1747782 changed the format to SHT_RELR, but what's produced is still
different from a real SHT_RELR section, because it uses a terminating
nul entry.
Differential Revision: https://phabricator.services.mozilla.com/D181689
For a few NDK releases now, the situation has been simplified wrt
headers and libraries, and while we're currently still using things here
and there because we never changed our ways, we can simplify things a
lot by using the new simplified things. This involves:
- Using a --target that contains the Android version, making clang set
__ANDROID_API__ itself, and makes it look in $sysroot/usr/lib/$target/$ver
when linking.
- Using the sysroot that is under toolchains/llvm/prebuilt/*.
- Removing the hacks around libstdc++/libc++.
This ends up emptying stlport compiler flags, which allows to remove a
bunch of things.
Differential Revision: https://phabricator.services.mozilla.com/D172039
For a few NDK releases now, the situation has been simplified wrt
headers and libraries, and while we're currently still using things here
and there because we never changed our ways, we can simplify things a
lot by using the new simplified things. This involves:
- Using a --target that contains the Android version, making clang set
__ANDROID_API__ itself, and makes it look in $sysroot/usr/lib/$target/$ver
when linking.
- Using the sysroot that is under toolchains/llvm/prebuilt/*.
- Removing the hacks around libstdc++/libc++.
This ends up emptying stlport compiler flags, which allows to remove a
bunch of things.
Differential Revision: https://phabricator.services.mozilla.com/D172039
This reduces the archive size while keeping the compiler functional. This should not impact the quality of debug information of the compiled files
The size reduction is significant: from 236MB down to48MB.
Differential Revision: https://phabricator.services.mozilla.com/D167706
Switches from `buildconfig.substs` to `bootstrap_toolchain` for the repackage job
Refactors mozpack/dmg to not depend on the environment; Moves path resolution of tools up to `mozbuild.action.{make_dmg|unpack_dmg}`
Update syntax to python 3.7+
Differential Revision: https://phabricator.services.mozilla.com/D163129
Switches from `buildconfig.substs` to `bootstrap_toolchain` for the repackage job
Refactors mozpack/dmg to not depend on the environment; Moves path resolution of tools up to `mozbuild.action.{make_dmg|unpack_dmg}`
Update syntax to python 3.7+
Differential Revision: https://phabricator.services.mozilla.com/D163129
Its use was removed from Firefox in bug 552864, in Thunderbird in bug 668869
and in Seamonkey in bug 722262. That was 10 years ago.
Differential Revision: https://phabricator.services.mozilla.com/D147484
