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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-28 14:03:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-28 14:03:14 -0700 |
| commit | 0fe41b8982001cd14ee2c77cd776735a5024e98b (patch) | |
| tree | 83e65d595c413d55259ea14fb97748ce5efe5707 /arch/arm/kernel/time.c | |
| parent | eedf2c5296a8dfaaf9aec1a938c1d3bd73159a30 (diff) | |
| parent | 9759d22c8348343b0da4e25d6150c41712686c14 (diff) | |
| download | linux-0fe41b8982001cd14ee2c77cd776735a5024e98b.tar.bz2 | |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (422 commits)
[ARM] 5435/1: fix compile warning in sanity_check_meminfo()
[ARM] 5434/1: ARM: OMAP: Fix mailbox compile for 24xx
[ARM] pxa: fix the bad assumption that PCMCIA sockets always start with 0
[ARM] pxa: fix Colibri PXA300 and PXA320 LCD backlight pins
imxfb: Fix TFT mode
i.MX21/27: remove ifdef CONFIG_FB_IMX
imxfb: add clock support
mxc: add arch_reset() function
clkdev: add possibility to get a clock based on the device name
i.MX1: remove fb support from mach-imx
[ARM] pxa: build arch/arm/plat-pxa/mfp.c only when PXA3xx or ARCH_MMP defined
Gemini: Add support for Teltonika RUT100
Gemini: gpiolib based GPIO support v2
MAINTAINERS: add myself as Gemini architecture maintainer
ARM: Add Gemini architecture v3
[ARM] OMAP: Fix compile for omap2_init_common_hw()
MAINTAINERS: Add myself as Faraday ARM core variant maintainer
ARM: Add support for FA526 v2
[ARM] acorn,ebsa110,footbridge,integrator,sa1100: Convert asm/io.h to linux/io.h
[ARM] collie: fix two minor formatting nits
...
Diffstat (limited to 'arch/arm/kernel/time.c')
| -rw-r--r-- | arch/arm/kernel/time.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index c68b44aa88d2..4cdc4a0bd02d 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -33,6 +33,7 @@ #include <asm/leds.h> #include <asm/thread_info.h> +#include <asm/stacktrace.h> #include <asm/mach/time.h> /* @@ -55,14 +56,22 @@ EXPORT_SYMBOL(rtc_lock); #ifdef CONFIG_SMP unsigned long profile_pc(struct pt_regs *regs) { - unsigned long fp, pc = instruction_pointer(regs); + struct stackframe frame; - if (in_lock_functions(pc)) { - fp = regs->ARM_fp; - pc = ((unsigned long *)fp)[-1]; - } + if (!in_lock_functions(regs->ARM_pc)) + return regs->ARM_pc; + + frame.fp = regs->ARM_fp; + frame.sp = regs->ARM_sp; + frame.lr = regs->ARM_lr; + frame.pc = regs->ARM_pc; + do { + int ret = unwind_frame(&frame); + if (ret < 0) + return 0; + } while (in_lock_functions(frame.pc)); - return pc; + return frame.pc; } EXPORT_SYMBOL(profile_pc); #endif |