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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-02-12 19:20:27 +0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-10-20 10:40:53 -0300 |
| commit | 82fd7314c7df8c5555dce027df6f2c98ca5a927f (patch) | |
| tree | 2d16a8c07c1fc6d03405c79a695075c4432ece87 /sysdeps/unix/sysv/linux/powerpc/sysdep.h | |
| parent | 2c6cabb3a442f467e78c702cffbd5f003f87f44f (diff) | |
| download | glibc-82fd7314c7df8c5555dce027df6f2c98ca5a927f.tar.gz glibc-82fd7314c7df8c5555dce027df6f2c98ca5a927f.tar.xz glibc-82fd7314c7df8c5555dce027df6f2c98ca5a927f.zip | |
powerpc: Remove backtrace implementation
The powerpc optimization to provide a fast stacktrace requires some ad-hoc code to handle Linux signal frames and the change is fragile once the kernel decides to slight change its execution sequence [1]. The generic implementation work as-is and it should be future proof since the kernel provides the expected CFI directives in vDSO shared page. Checked on powerpc-linux-gnu, powerpc64le-linux-gnu, and powerpc64-linux-gnu. [1] https://sourceware.org/pipermail/libc-alpha/2021-January/122027.html
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc/sysdep.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/powerpc/sysdep.h | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/sysdep.h b/sysdeps/unix/sysv/linux/powerpc/sysdep.h index 4b9d43c636..ff9644d209 100644 --- a/sysdeps/unix/sysv/linux/powerpc/sysdep.h +++ b/sysdeps/unix/sysv/linux/powerpc/sysdep.h @@ -255,11 +255,4 @@ #define HAVE_GETTIMEOFDAY_VSYSCALL "__kernel_gettimeofday" #define HAVE_GET_TBFREQ "__kernel_get_tbfreq" -#if defined(__PPC64__) || defined(__powerpc64__) -# define HAVE_SIGTRAMP_RT64 "__kernel_sigtramp_rt64" -#else -# define HAVE_SIGTRAMP_32 "__kernel_sigtramp32" -# define HAVE_SIGTRAMP_RT32 "__kernel_sigtramp_rt32" -#endif - #endif /* _LINUX_POWERPC_SYSDEP_H */ |