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authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-28 14:03:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-28 14:03:14 -0700
commit0fe41b8982001cd14ee2c77cd776735a5024e98b (patch)
tree83e65d595c413d55259ea14fb97748ce5efe5707 /arch/arm/kernel/entry-armv.S
parenteedf2c5296a8dfaaf9aec1a938c1d3bd73159a30 (diff)
parent9759d22c8348343b0da4e25d6150c41712686c14 (diff)
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/entry-armv.S')
-rw-r--r--arch/arm/kernel/entry-armv.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 85040cfeb5e..d662a2f1fd8 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -20,6 +20,7 @@
#include <asm/vfpmacros.h>
#include <mach/entry-macro.S>
#include <asm/thread_notify.h>
+#include <asm/unwind.h>
#include "entry-header.S"
@@ -123,6 +124,8 @@ ENDPROC(__und_invalid)
#endif
.macro svc_entry, stack_hole=0
+ UNWIND(.fnstart )
+ UNWIND(.save {r0 - pc} )
sub sp, sp, #(S_FRAME_SIZE + \stack_hole)
SPFIX( tst sp, #4 )
SPFIX( bicne sp, sp, #4 )
@@ -196,6 +199,7 @@ __dabt_svc:
ldr r0, [sp, #S_PSR]
msr spsr_cxsf, r0
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
+ UNWIND(.fnend )
ENDPROC(__dabt_svc)
.align 5
@@ -228,6 +232,7 @@ __irq_svc:
bleq trace_hardirqs_on
#endif
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
+ UNWIND(.fnend )
ENDPROC(__irq_svc)
.ltorg
@@ -278,6 +283,7 @@ __und_svc:
ldr lr, [sp, #S_PSR] @ Get SVC cpsr
msr spsr_cxsf, lr
ldmia sp, {r0 - pc}^ @ Restore SVC registers
+ UNWIND(.fnend )
ENDPROC(__und_svc)
.align 5
@@ -320,6 +326,7 @@ __pabt_svc:
ldr r0, [sp, #S_PSR]
msr spsr_cxsf, r0
ldmia sp, {r0 - pc}^ @ load r0 - pc, cpsr
+ UNWIND(.fnend )
ENDPROC(__pabt_svc)
.align 5
@@ -343,6 +350,8 @@ ENDPROC(__pabt_svc)
#endif
.macro usr_entry
+ UNWIND(.fnstart )
+ UNWIND(.cantunwind ) @ don't unwind the user space
sub sp, sp, #S_FRAME_SIZE
stmib sp, {r1 - r12}
@@ -420,6 +429,7 @@ __dabt_usr:
mov r2, sp
adr lr, ret_from_exception
b do_DataAbort
+ UNWIND(.fnend )
ENDPROC(__dabt_usr)
.align 5
@@ -450,6 +460,7 @@ __irq_usr:
mov why, #0
b ret_to_user
+ UNWIND(.fnend )
ENDPROC(__irq_usr)
.ltorg
@@ -484,6 +495,7 @@ __und_usr:
#else
b __und_usr_unknown
#endif
+ UNWIND(.fnend )
ENDPROC(__und_usr)
@
@@ -671,14 +683,18 @@ __pabt_usr:
enable_irq @ Enable interrupts
mov r1, sp @ regs
bl do_PrefetchAbort @ call abort handler
+ UNWIND(.fnend )
/* fall through */
/*
* This is the return code to user mode for abort handlers
*/
ENTRY(ret_from_exception)
+ UNWIND(.fnstart )
+ UNWIND(.cantunwind )
get_thread_info tsk
mov why, #0
b ret_to_user
+ UNWIND(.fnend )
ENDPROC(__pabt_usr)
ENDPROC(ret_from_exception)
@@ -688,6 +704,8 @@ ENDPROC(ret_from_exception)
* previous and next are guaranteed not to be the same.
*/
ENTRY(__switch_to)
+ UNWIND(.fnstart )
+ UNWIND(.cantunwind )
add ip, r1, #TI_CPU_SAVE
ldr r3, [r2, #TI_TP_VALUE]
stmia ip!, {r4 - sl, fp, sp, lr} @ Store most regs on stack
@@ -717,6 +735,7 @@ ENTRY(__switch_to)
bl atomic_notifier_call_chain
mov r0, r5
ldmia r4, {r4 - sl, fp, sp, pc} @ Load all regs saved previously
+ UNWIND(.fnend )
ENDPROC(__switch_to)
__INIT