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authorMichal Simek <monstr@monstr.eu>2009-11-13 08:26:49 +0100
committerMichal Simek <monstr@monstr.eu>2009-12-14 08:44:55 +0100
commitf7816e284b72820b295b2d377cc635d7305f6728 (patch)
tree055076ff17b771eb53105f3ab69ca0e5e95f2871 /arch/microblaze
parent5dd48a235c3f78620e582ebb253d64d02747d173 (diff)
downloadop-kernel-dev-f7816e284b72820b295b2d377cc635d7305f6728.zip
op-kernel-dev-f7816e284b72820b295b2d377cc635d7305f6728.tar.gz
microblaze: Remove saving and restoring before calling signal code
Saving is done in SAVE_STATE macros that's why another save discard previous saved value. This change has no effect to normal programs because they ends in any exception and they are killed. On the other side has effect on debugging. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/entry.S4
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index e3ecb36..7417d9a 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -711,15 +711,11 @@ C_ENTRY(ret_from_exc):
* (in a possibly modified form) after do_signal returns.
* store return registers separately because this macros is use
* for others exceptions */
- swi r3, r1, PTO + PT_R3;
- swi r4, r1, PTO + PT_R4;
la r5, r1, PTO; /* Arg 1: struct pt_regs *regs */
add r6, r0, r0; /* Arg 2: sigset_t *oldset */
addi r7, r0, 0; /* Arg 3: int in_syscall */
bralid r15, do_signal; /* Handle any signals */
nop;
- lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
- lwi r4, r1, PTO+PT_R4;
/* Finally, return to user state. */
1: swi r0, r0, PER_CPU(KM); /* Now officially in user state. */
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