From 82fd7314c7df8c5555dce027df6f2c98ca5a927f Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Fri, 12 Feb 2021 19:20:27 +0300 Subject: 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 --- sysdeps/unix/sysv/linux/powerpc/sysdep.h | 7 ------- 1 file changed, 7 deletions(-) (limited to 'sysdeps/unix/sysv/linux/powerpc/sysdep.h') 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 */ -- cgit 1.4.1