diff options
Diffstat (limited to 'arch/arm/kernel/traps.c')
| -rw-r--r-- | arch/arm/kernel/traps.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 45d2a032d89..2fb0a4cfb37 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -30,6 +30,7 @@ #include <asm/traps.h> #include "ptrace.h" +#include "signal.h" const char *processor_modes[]= { "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" , @@ -683,6 +684,14 @@ void __init trap_init(void) memcpy((void *)0xffff0000, __vectors_start, __vectors_end - __vectors_start); memcpy((void *)0xffff0200, __stubs_start, __stubs_end - __stubs_start); memcpy((void *)0xffff1000 - kuser_sz, __kuser_helper_start, kuser_sz); + + /* + * Copy signal return handlers into the vector page, and + * set sigreturn to be a pointer to these. + */ + memcpy((void *)KERN_SIGRETURN_CODE, sigreturn_codes, + sizeof(sigreturn_codes)); + flush_icache_range(0xffff0000, 0xffff0000 + PAGE_SIZE); modify_domain(DOMAIN_USER, DOMAIN_CLIENT); } |