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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 23:08:50 (GMT) |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-15 23:08:50 (GMT) |
commit | 65a6ec0d72a07f16719e9b7a96e1c4bae044b591 (patch) | |
tree | 344e03a5039a44982c1b78d6113633b21b434820 /arch/arm/nwfpe/entry.S | |
parent | 541010e4b8921cd781ff02ae68028501457045b6 (diff) | |
parent | 0181b61a988424b5cc44fe09e6968142359c815e (diff) | |
download | linux-65a6ec0d72a07f16719e9b7a96e1c4bae044b591.tar.xz |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (95 commits)
[ARM] 4578/1: CM-x270: PCMCIA support
[ARM] 4577/1: ITE 8152 PCI bridge support
[ARM] 4576/1: CM-X270 machine support
[ARM] pxa: Avoid pxa_gpio_mode() in gpio_direction_{in,out}put()
[ARM] pxa: move pxa_set_mode() from pxa2xx_mainstone.c to mainstone.c
[ARM] pxa: move pxa_set_mode() from pxa2xx_lubbock.c to lubbock.c
[ARM] pxa: Make cpu_is_pxaXXX dependent on configuration symbols
[ARM] pxa: PXA3xx base support
[NET] smc91x: fix PXA DMA support code
[SERIAL] Fix console initialisation ordering
[ARM] pxa: tidy up arch/arm/mach-pxa/Makefile
[ARM] Update arch/arm/Kconfig for drivers/Kconfig changes
[ARM] 4600/1: fix kernel build failure with build-id-supporting binutils
[ARM] 4599/1: Preserve ATAG list for use with kexec (2.6.23)
[ARM] Rename consistent_sync() as dma_cache_maint()
[ARM] 4572/1: ep93xx: add cirrus logic edb9307 support
[ARM] 4596/1: S3C2412: Correct IRQs for SDI+CF and add decoding support
[ARM] 4595/1: ns9xxx: define registers as void __iomem * instead of volatile u32
[ARM] 4594/1: ns9xxx: use the new gpio functions
[ARM] 4593/1: ns9xxx: implement generic clockevents
...
Diffstat (limited to 'arch/arm/nwfpe/entry.S')
-rw-r--r-- | arch/arm/nwfpe/entry.S | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/arch/arm/nwfpe/entry.S b/arch/arm/nwfpe/entry.S index 1dc13bc..48bca0d 100644 --- a/arch/arm/nwfpe/entry.S +++ b/arch/arm/nwfpe/entry.S @@ -70,13 +70,24 @@ floating point instructions. GCC attempts to group floating point instructions to allow the emulator to spread the cost of the trap over several floating point instructions. */ +#include <asm/asm-offsets.h> + .globl nwfpe_enter nwfpe_enter: mov r4, lr @ save the failure-return addresses mov sl, sp @ we access the registers via 'sl' - ldr r5, [sp, #60] @ get contents of PC; + ldr r5, [sp, #S_PC] @ get contents of PC; + mov r6, r0 @ save the opcode emulate: + ldr r1, [sp, #S_PSR] @ fetch the PSR + bl checkCondition @ check the condition + cmp r0, #0 @ r0 = 0 ==> condition failed + + @ if condition code failed to match, next insn + beq next @ get the next instruction; + + mov r0, r6 @ prepare for EmulateAll() bl EmulateAll @ emulate the instruction cmp r0, #0 @ was emulation successful moveq pc, r4 @ no, return failure @@ -91,18 +102,10 @@ next: teqne r2, #0x0E000000 movne pc, r9 @ return ok if not a fp insn - str r5, [sp, #60] @ update PC copy in regs + str r5, [sp, #S_PC] @ update PC copy in regs mov r0, r6 @ save a copy - ldr r1, [sp, #64] @ fetch the condition codes - bl checkCondition @ check the condition - cmp r0, #0 @ r0 = 0 ==> condition failed - - @ if condition code failed to match, next insn - beq next @ get the next instruction; - - mov r0, r6 @ prepare for EmulateAll() - b emulate @ if r0 != 0, goto EmulateAll + b emulate @ check condition and emulate @ We need to be prepared for the instructions at .Lx1 and .Lx2 @ to fault. Emit the appropriate exception gunk to fix things up. |