This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
Re: [PATCH] Rework -fno-omit-frame-pointer support on i386
- From: Nix <nix at esperi dot org dot uk>
- To: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- Cc: libc-alpha at sourceware dot org
- Date: Mon, 09 Jan 2017 19:02:27 +0000
- Subject: Re: [PATCH] Rework -fno-omit-frame-pointer support on i386
- Authentication-results: sourceware.org; auth=none
- References: <1483966550-21038-1-git-send-email-adhemerval.zanella@linaro.org>
On 9 Jan 2017, Adhemerval Zanella stated:
> ifeq ($(subdir),misc)
> sysdep_routines += ioperm iopl vm86
> -CFLAGS-epoll_pwait.o += $(uses-6-syscall-arguments)
> -CFLAGS-epoll_pwait.os += $(uses-6-syscall-arguments)
> -CFLAGS-mmap.o += $(uses-6-syscall-arguments)
> -CFLAGS-mmap.os += $(uses-6-syscall-arguments)
> -CFLAGS-mmap64.o += $(uses-6-syscall-arguments)
> -CFLAGS-mmap64.os += $(uses-6-syscall-arguments)
> -CFLAGS-pselect.o += $(uses-6-syscall-arguments)
> -CFLAGS-pselect.os += $(uses-6-syscall-arguments)
> -CFLAGS-rtld-mmap.os += $(uses-6-syscall-arguments)
> -endif
Nice!
> diff --git a/sysdeps/unix/sysv/linux/i386/configure.ac b/sysdeps/unix/sysv/linux/i386/configure.ac
> index 1a11da6..06ccb7b 100644
> --- a/sysdeps/unix/sysv/linux/i386/configure.ac
> +++ b/sysdeps/unix/sysv/linux/i386/configure.ac
> @@ -3,5 +3,24 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
>
> arch_minimum_kernel=2.6.32
>
> +# Check if CFLAGS sets -fno-omit-frame-pointer
> +AC_CACHE_CHECK(for if compiler flags sets -fno-omit-frame-pointer,
Perhaps "for -fno-omit-frame-pointer in CFLAGS" might read better.
--
NULL && (void)