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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2010-05-21 18:06:42 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2013-04-17 21:44:46 +0200 |
| commit | 19c4d593f0b4bd46f6d923a3e514719982a22058 (patch) | |
| tree | d49347eeaf897139242020418fd104f1c2daed91 /arch/arm/kernel/entry-common.S | |
| parent | 55bdd694116597d2f16510b121463cd579ba78da (diff) | |
| download | linux-19c4d593f0b4bd46f6d923a3e514719982a22058.tar.gz | |
ARM: ARMv7-M: Add support for exception handling
This patch implements the exception handling for the ARMv7-M architecture (pretty different from the A or R profiles). It bases on work done earlier by Catalin for 2.6.33 but was nearly completely rewritten to use a pt_regs layout compatible to the A profile. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Jonathan Austin <jonathan.austin@arm.com> Tested-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
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 3248cde504ed..c45e0027613b 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -339,6 +339,9 @@ ENDPROC(ftrace_stub) .align 5 ENTRY(vector_swi) +#ifdef CONFIG_CPU_V7M + v7m_exception_entry +#else sub sp, sp, #S_FRAME_SIZE stmia sp, {r0 - r12} @ Calling r0 - r12 ARM( add r8, sp, #S_PC ) @@ -349,6 +352,7 @@ ENTRY(vector_swi) str lr, [sp, #S_PC] @ Save calling PC str r8, [sp, #S_PSR] @ Save CPSR str r0, [sp, #S_OLD_R0] @ Save OLD_R0 +#endif zero_fp /* |