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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/dl-vdso-setup.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/dl-vdso-setup.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/dl-vdso-setup.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/sysdeps/unix/sysv/linux/dl-vdso-setup.h b/sysdeps/unix/sysv/linux/dl-vdso-setup.h index daf9873c4e..75b00a0046 100644 --- a/sysdeps/unix/sysv/linux/dl-vdso-setup.h +++ b/sysdeps/unix/sysv/linux/dl-vdso-setup.h @@ -47,15 +47,6 @@ setup_vdso_pointers (void) #ifdef HAVE_GET_TBFREQ GLRO(dl_vdso_get_tbfreq) = dl_vdso_vsym (HAVE_GET_TBFREQ); #endif -#ifdef HAVE_SIGTRAMP_RT64 - GLRO(dl_vdso_sigtramp_rt64) = dl_vdso_vsym (HAVE_SIGTRAMP_RT64); -#endif -#ifdef HAVE_SIGTRAMP_RT32 - GLRO(dl_vdso_sigtramp_rt32) = dl_vdso_vsym (HAVE_SIGTRAMP_RT32); -#endif -#ifdef HAVE_SIGTRAMP_32 - GLRO(dl_vdso_sigtramp_32) = dl_vdso_vsym (HAVE_SIGTRAMP_32); -#endif } #endif |