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| author | Brian Gerst <brgerst@gmail.com> | 2009-02-10 09:51:47 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-11 12:40:45 +0100 |
| commit | 9c8bb6b534d1c89a20bf9bb45e1471cf8f4747c0 (patch) | |
| tree | 7584daacae9325b1694468467f607ada11573186 /arch | |
| parent | 253f29a4ae9cc6cdc7b94f96517f27a93885a6ce (diff) | |
| download | linux-9c8bb6b534d1c89a20bf9bb45e1471cf8f4747c0.tar.gz linux-9c8bb6b534d1c89a20bf9bb45e1471cf8f4747c0.tar.bz2 linux-9c8bb6b534d1c89a20bf9bb45e1471cf8f4747c0.zip | |
x86: drop -fno-stack-protector annotations after pt_regs fixes
Now that no functions rely on struct pt_regs being passed by value,
various "no stack protector" annotations can be dropped.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/Makefile | 18 |
1 files changed, 0 insertions, 18 deletions
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index b1f8be33300d..37fa30bada17 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -24,24 +24,6 @@ CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp) CFLAGS_hpet.o := $(nostackp) CFLAGS_tsc.o := $(nostackp) CFLAGS_paravirt.o := $(nostackp) -# -# On x86_32, register frame is passed verbatim on stack as struct -# pt_regs. gcc considers the parameter to belong to the callee and -# with -fstack-protector it copies pt_regs to the callee's stack frame -# to put the structure after the stack canary causing changes made by -# the exception handlers to be lost. Turn off stack protector for all -# files containing functions which take struct pt_regs from register -# frame. -# -# The proper way to fix this is to teach gcc that the argument belongs -# to the caller for these functions, oh well... -# -ifdef CONFIG_X86_32 -CFLAGS_process_32.o := $(nostackp) -CFLAGS_vm86_32.o := $(nostackp) -CFLAGS_signal.o := $(nostackp) -CFLAGS_traps.o := $(nostackp) -endif obj-y := process_$(BITS).o signal.o entry_$(BITS).o obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o |