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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-02-16 11:42:09 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-02-19 12:27:35 +0100 |
| commit | c4c5716e16c4ee971dec446a7e4801fbb8a1066b (patch) | |
| tree | a1fb65c5b694bdc0b61bcd06371c2204968eb3b3 /arch/arm/kernel/entry-common.S | |
| parent | [ARM] 5384/1: unwind: Add stack unwinding support for loadable modules (diff) | |
| download | linux-c4c5716e16c4ee971dec446a7e4801fbb8a1066b.tar.xz linux-c4c5716e16c4ee971dec446a7e4801fbb8a1066b.zip | |
[ARM] 5385/2: unwind: Add unwinding information to exception entry points
This is needed to allow or stop the unwinding at certain points in the
kernel like exception entries.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel/entry-common.S')
| -rw-r--r-- | arch/arm/kernel/entry-common.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index 49a6ba926c2b..b8c1f1411440 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -11,6 +11,7 @@ #include <asm/unistd.h> #include <asm/ftrace.h> #include <mach/entry-macro.S> +#include <asm/unwind.h> #include "entry-header.S" @@ -22,6 +23,8 @@ * stack. */ ret_fast_syscall: + UNWIND(.fnstart ) + UNWIND(.cantunwind ) disable_irq @ disable interrupts ldr r1, [tsk, #TI_FLAGS] tst r1, #_TIF_WORK_MASK @@ -38,6 +41,7 @@ ret_fast_syscall: mov r0, r0 add sp, sp, #S_FRAME_SIZE - S_PC movs pc, lr @ return & move spsr_svc into cpsr + UNWIND(.fnend ) /* * Ok, we need to do extra processing, enter the slow path. |