Bug#951237: glibc/mips: bpo patch: mips: Fix argument passing for inlined syscalls on Linux [BZ #25523]
Package: src:glibc
Version: 2.29
Severity: serious
https://sourceware.org/bugzilla/show_bug.cgi?id=25523
https://sourceware.org/git/?p=glibc.git;a=commit;h=4fbba6fe904d0094ddc4284066b3860d119cbd4a
mips: Fix argument passing for inlined syscalls on Linux [BZ #25523]
According to [gcc documentation][1], temporary variables must be used for
the desired content to not be call-clobbered.
Fix the Linux inline syscall templates by adding temporary variables,
much like what x86 did before
(commit 381a0c26d73e0f074c962e0ab53b99a6c327066d).
Tested with gcc 9.2.0, both cross-compiled and natively on Loongson
3A4000.
[1]: https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html
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