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authorArnd Bergmann <arnd@arndb.de>2009-06-18 13:55:29 -0400
committerMichal Simek <monstr@monstr.eu>2009-07-06 04:26:57 -0400
commit3183e06863f49a500fc76427db4d60825a26f81b (patch)
tree749cfd09f4469a2ad08321ad10afbad4d92dfcdb /arch/microblaze/kernel/entry.S
parent0a58458341fd571e521be542ff746a4a8995980c (diff)
microblaze: clean up signal handling
When legacy signal handling is disabled, the arch/microblaze/kernel/signal.c implementation can be much simpler, as most of it is handled generically from kernel/signal.c. This is also a prerequisite for using the generic asm/unistd.h, which does not provide __NR_sigreturn, because this macro is referenced by the current signal.c implementation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel/entry.S')
-rw-r--r--arch/microblaze/kernel/entry.S23
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 91a0e7b185dd..ea7107652d8d 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -449,17 +449,6 @@ C_ENTRY(sys_execve_wrapper):
449 brid sys_execve; /* Do real work (tail-call).*/ 449 brid sys_execve; /* Do real work (tail-call).*/
450 nop; 450 nop;
451 451
452C_ENTRY(sys_sigsuspend_wrapper):
453 swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
454 swi r4, r1, PTO+PT_R4;
455 la r6, r1, PTO; /* add user context as 2nd arg */
456 bralid r15, sys_sigsuspend; /* Do real work.*/
457 nop;
458 lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
459 lwi r4, r1, PTO+PT_R4;
460 bri ret_from_trap /* fall through will not work here due to align */
461 nop;
462
463C_ENTRY(sys_rt_sigsuspend_wrapper): 452C_ENTRY(sys_rt_sigsuspend_wrapper):
464 swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ 453 swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
465 swi r4, r1, PTO+PT_R4; 454 swi r4, r1, PTO+PT_R4;
@@ -471,18 +460,6 @@ C_ENTRY(sys_rt_sigsuspend_wrapper):
471 bri ret_from_trap /* fall through will not work here due to align */ 460 bri ret_from_trap /* fall through will not work here due to align */
472 nop; 461 nop;
473 462
474
475C_ENTRY(sys_sigreturn_wrapper):
476 swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
477 swi r4, r1, PTO+PT_R4;
478 la r5, r1, PTO; /* add user context as 1st arg */
479 brlid r15, sys_sigreturn; /* Do real work.*/
480 nop;
481 lwi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
482 lwi r4, r1, PTO+PT_R4;
483 bri ret_from_trap /* fall through will not work here due to align */
484 nop;
485
486C_ENTRY(sys_rt_sigreturn_wrapper): 463C_ENTRY(sys_rt_sigreturn_wrapper):
487 swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */ 464 swi r3, r1, PTO+PT_R3; /* restore saved r3, r4 registers */
488 swi r4, r1, PTO+PT_R4; 465 swi r4, r1, PTO+PT_R4;