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path: root/arch/mips/kernel/signal_n32.c
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Diffstat (limited to 'arch/mips/kernel/signal_n32.c')
-rw-r--r--arch/mips/kernel/signal_n32.c26
1 files changed, 6 insertions, 20 deletions
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index bb277e82d42..2c5df818c65 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -39,13 +39,13 @@
#include <asm/fpu.h>
#include <asm/cpu-features.h>
#include <asm/war.h>
+#include <asm/vdso.h>
#include "signal-common.h"
/*
* Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
*/
-#define __NR_N32_rt_sigreturn 6211
#define __NR_N32_restart_syscall 6214
extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *);
@@ -67,27 +67,13 @@ struct ucontextn32 {
compat_sigset_t uc_sigmask; /* mask last for extensibility */
};
-#if ICACHE_REFILLS_WORKAROUND_WAR == 0
-
-struct rt_sigframe_n32 {
- u32 rs_ass[4]; /* argument save space for o32 */
- u32 rs_code[2]; /* signal trampoline */
- struct compat_siginfo rs_info;
- struct ucontextn32 rs_uc;
-};
-
-#else /* ICACHE_REFILLS_WORKAROUND_WAR */
-
struct rt_sigframe_n32 {
u32 rs_ass[4]; /* argument save space for o32 */
- u32 rs_pad[2];
+ u32 rs_pad[2]; /* Was: signal trampoline */
struct compat_siginfo rs_info;
struct ucontextn32 rs_uc;
- u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */
};
-#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
-
extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat);
asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs)
@@ -173,7 +159,7 @@ badframe:
force_sig(SIGSEGV, current);
}
-static int setup_rt_frame_n32(struct k_sigaction * ka,
+static int setup_rt_frame_n32(void *sig_return, struct k_sigaction *ka,
struct pt_regs *regs, int signr, sigset_t *set, siginfo_t *info)
{
struct rt_sigframe_n32 __user *frame;
@@ -184,8 +170,6 @@ static int setup_rt_frame_n32(struct k_sigaction * ka,
if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
goto give_sigsegv;
- install_sigtramp(frame->rs_code, __NR_N32_rt_sigreturn);
-
/* Create siginfo. */
err |= copy_siginfo_to_user32(&frame->rs_info, info);
@@ -219,7 +203,7 @@ static int setup_rt_frame_n32(struct k_sigaction * ka,
regs->regs[ 5] = (unsigned long) &frame->rs_info;
regs->regs[ 6] = (unsigned long) &frame->rs_uc;
regs->regs[29] = (unsigned long) frame;
- regs->regs[31] = (unsigned long) frame->rs_code;
+ regs->regs[31] = (unsigned long) sig_return;
regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler;
DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n",
@@ -235,5 +219,7 @@ give_sigsegv:
struct mips_abi mips_abi_n32 = {
.setup_rt_frame = setup_rt_frame_n32,
+ .rt_signal_return_offset =
+ offsetof(struct mips_vdso, n32_rt_signal_trampoline),
.restart = __NR_N32_restart_syscall
};