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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-08-15 15:51:48 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-08-15 15:51:48 (GMT) |
| commit | 9b2616c2e8cc98ca98bbb40cad83a8d3d859e840 (patch) | |
| tree | 5a971fa57298d58529d3ae82b68cbfc7139bde7b /arch/arm/kernel | |
| parent | 590a94d93475fa6cca257f161ae268ed3a2395b5 (diff) | |
| parent | ac25150f2c55ea26447af0fa1d4e2bb07f97384d (diff) | |
| download | linux-9b2616c2e8cc98ca98bbb40cad83a8d3d859e840.tar.xz | |
Merge branch 'for-rmk-2.6.32' of git://git.pengutronix.de/git/ukl/linux-2.6 into devel-stable
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/armksyms.c | 1 | ||||
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 10 | ||||
| -rw-r--r-- | arch/arm/kernel/entry-common.S | 19 |
3 files changed, 24 insertions, 6 deletions
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c index 531e186..0e62770 100644 --- a/arch/arm/kernel/armksyms.c +++ b/arch/arm/kernel/armksyms.c @@ -186,4 +186,5 @@ EXPORT_SYMBOL(_find_next_bit_be); #ifdef CONFIG_FUNCTION_TRACER EXPORT_SYMBOL(mcount); +EXPORT_SYMBOL(__gnu_mcount_nc); #endif diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 468425f..3d727a8 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -161,6 +161,8 @@ ENDPROC(__und_invalid) @ r4 - orig_r0 (see pt_regs definition in ptrace.h) @ stmia r5, {r0 - r4} + + asm_trace_hardirqs_off .endm .align 5 @@ -215,9 +217,6 @@ ENDPROC(__dabt_svc) __irq_svc: svc_entry -#ifdef CONFIG_TRACE_IRQFLAGS - bl trace_hardirqs_off -#endif #ifdef CONFIG_PREEMPT get_thread_info tsk ldr r8, [tsk, #TI_PREEMPT] @ get preempt count @@ -391,6 +390,8 @@ ENDPROC(__pabt_svc) @ Clear FP to mark the first stack frame @ zero_fp + + asm_trace_hardirqs_off .endm .macro kuser_cmpxchg_check @@ -445,9 +446,6 @@ __irq_usr: usr_entry kuser_cmpxchg_check -#ifdef CONFIG_TRACE_IRQFLAGS - bl trace_hardirqs_off -#endif get_thread_info tsk #ifdef CONFIG_PREEMPT ldr r8, [tsk, #TI_PREEMPT] @ get preempt count diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index a0540c9..df19e8b 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -118,6 +118,25 @@ ftrace_call: #else +ENTRY(__gnu_mcount_nc) + stmdb sp!, {r0-r3, lr} + ldr r0, =ftrace_trace_function + ldr r2, [r0] + adr r0, ftrace_stub + cmp r0, r2 + bne gnu_trace + ldmia sp!, {r0-r3, ip, lr} + bx ip + +gnu_trace: + ldr r1, [sp, #20] @ lr of instrumented routine + mov r0, lr + sub r0, r0, #MCOUNT_INSN_SIZE + mov lr, pc + mov pc, r2 + ldmia sp!, {r0-r3, ip, lr} + bx ip + ENTRY(mcount) stmdb sp!, {r0-r3, lr} ldr r0, =ftrace_trace_function |