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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-23 08:00:08 +0100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-04 00:15:50 +0100 |
| commit | 47880695011964be808d3151f0f47bd6626f6f2f (patch) | |
| tree | f9f175b1932cbc70108f775b972b95b799c9441c /arch/avr32 | |
| parent | take sys_rt_sigsuspend() prototype to linux/syscalls.h (diff) | |
| download | linux-47880695011964be808d3151f0f47bd6626f6f2f.tar.xz linux-47880695011964be808d3151f0f47bd6626f6f2f.zip | |
avr32: switch to generic sigaltstack
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'arch/avr32')
| -rw-r--r-- | arch/avr32/Kconfig | 1 | ||||
| -rw-r--r-- | arch/avr32/kernel/signal.c | 15 | ||||
| -rw-r--r-- | arch/avr32/kernel/syscall-stubs.S | 6 | ||||
| -rw-r--r-- | arch/avr32/kernel/syscall_table.S | 2 |
4 files changed, 4 insertions, 20 deletions
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig index 2ae6591b3a55..e888b72b6e10 100644 --- a/arch/avr32/Kconfig +++ b/arch/avr32/Kconfig @@ -17,6 +17,7 @@ config AVR32 select GENERIC_CLOCKEVENTS select HAVE_MOD_ARCH_SPECIFIC select MODULES_USE_ELF_RELA + select GENERIC_SIGALTSTACK help AVR32 is a high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c index 5e01c3a40ced..b80c0b3d2bab 100644 --- a/arch/avr32/kernel/signal.c +++ b/arch/avr32/kernel/signal.c @@ -21,12 +21,6 @@ #include <asm/ucontext.h> #include <asm/syscalls.h> -asmlinkage int sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss, - struct pt_regs *regs) -{ - return do_sigaltstack(uss, uoss, regs->sp); -} - struct rt_sigframe { struct siginfo info; @@ -91,7 +85,7 @@ asmlinkage int sys_rt_sigreturn(struct pt_regs *regs) if (restore_sigcontext(regs, &frame->uc.uc_mcontext)) goto badframe; - if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT) + if (restore_altstack(&frame->uc.uc_stack)) goto badframe; pr_debug("Context restored: pc = %08lx, lr = %08lx, sp = %08lx\n", @@ -175,12 +169,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Set up the ucontext */ err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(NULL, &frame->uc.uc_link); - err |= __put_user((void __user *)current->sas_ss_sp, - &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->sp), - &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, - &frame->uc.uc_stack.ss_size); + err |= __save_altstack(&frame->uc.uc_stack, regs->sp); err |= setup_sigcontext(&frame->uc.uc_mcontext, regs); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); diff --git a/arch/avr32/kernel/syscall-stubs.S b/arch/avr32/kernel/syscall-stubs.S index 275aab9731fd..b5fc927cd398 100644 --- a/arch/avr32/kernel/syscall-stubs.S +++ b/arch/avr32/kernel/syscall-stubs.S @@ -20,12 +20,6 @@ __sys_rt_sigsuspend: mov r10, sp rjmp sys_rt_sigsuspend - .global __sys_sigaltstack - .type __sys_sigaltstack,@function -__sys_sigaltstack: - mov r10, sp - rjmp sys_sigaltstack - .global __sys_rt_sigreturn .type __sys_rt_sigreturn,@function __sys_rt_sigreturn: diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S index f27bb878da6b..017a904180c8 100644 --- a/arch/avr32/kernel/syscall_table.S +++ b/arch/avr32/kernel/syscall_table.S @@ -115,7 +115,7 @@ sys_call_table: .long sys_statfs .long sys_fstatfs /* 100 */ .long sys_vhangup - .long __sys_sigaltstack + .long sys_sigaltstack .long sys_syslog .long sys_setitimer .long sys_getitimer /* 105 */ |