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| author | Andy Lutomirski <luto@mit.edu> | 2011-08-10 11:15:30 -0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2011-08-10 18:55:29 -0500 |
| commit | f3fb5b7bb70d6e679c15fef85707810a067f5fb6 (patch) | |
| tree | d60a40c24a1f340529065e6801621d5e6deb9e3f /arch/x86/kernel | |
| parent | c149a665ac488e0dac22a42287f45ad1bda06ff1 (diff) | |
| download | blackbird-op-linux-f3fb5b7bb70d6e679c15fef85707810a067f5fb6.tar.gz blackbird-op-linux-f3fb5b7bb70d6e679c15fef85707810a067f5fb6.zip | |
x86: Remove unnecessary compile flag tweaks for vsyscall code
As of commit 98d0ac38ca7b1b7a552c9a2359174ff84decb600
Author: Andy Lutomirski <luto@mit.edu>
Date: Thu Jul 14 06:47:22 2011 -0400
x86-64: Move vread_tsc and vread_hpet into the vDSO
user code no longer directly calls into code in arch/x86/kernel/, so
we don't need compile flag hacks to make it safe. All vdso code is
in the vdso directory now.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/835cd05a4c7740544d09723d6ba48f4406f9826c.1312988155.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/Makefile | 13 | ||||
| -rw-r--r-- | arch/x86/kernel/vsyscall_64.c | 3 |
2 files changed, 0 insertions, 16 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 2deef3d2435a..3d1ac3978707 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -17,19 +17,6 @@ CFLAGS_REMOVE_ftrace.o = -pg CFLAGS_REMOVE_early_printk.o = -pg endif -# -# vsyscalls (which work on the user stack) should have -# no stack-protector checks: -# -nostackp := $(call cc-option, -fno-stack-protector) -CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp) -CFLAGS_hpet.o := $(nostackp) -CFLAGS_paravirt.o := $(nostackp) -GCOV_PROFILE_vsyscall_64.o := n -GCOV_PROFILE_hpet.o := n -GCOV_PROFILE_tsc.o := n -GCOV_PROFILE_paravirt.o := n - obj-y := process_$(BITS).o signal.o entry_$(BITS).o obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o obj-y += time.o ioport.o ldt.o dumpstack.o diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c index 93a0d46d9569..bf8e9ffee6e9 100644 --- a/arch/x86/kernel/vsyscall_64.c +++ b/arch/x86/kernel/vsyscall_64.c @@ -18,9 +18,6 @@ * use the vDSO. */ -/* Disable profiling for userspace code: */ -#define DISABLE_BRANCH_PROFILING - #include <linux/time.h> #include <linux/init.h> #include <linux/kernel.h> |
