#include <asm/system.h>
#include <asm/fpu.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_O32_sigreturn 4119
-#define __NR_O32_rt_sigreturn 4193
#define __NR_O32_restart_syscall 4253
/* 32-bit compatibility types */
compat_sigset_t uc_sigmask; /* mask last for extensibility */
};
-/*
- * Horribly complicated - with the bloody RM9000 workarounds enabled
- * the signal trampolines is moving to the end of the structure so we can
- * increase the alignment without breaking software compatibility.
- */
-#if ICACHE_REFILLS_WORKAROUND_WAR == 0
-
struct sigframe32 {
u32 sf_ass[4]; /* argument save space for o32 */
- u32 sf_code[2]; /* signal trampoline */
+ u32 sf_pad[2]; /* Was: signal trampoline */
struct sigcontext32 sf_sc;
compat_sigset_t sf_mask;
};
struct rt_sigframe32 {
u32 rs_ass[4]; /* argument save space for o32 */
- u32 rs_code[2]; /* signal trampoline */
+ u32 rs_pad[2]; /* Was: signal trampoline */
compat_siginfo_t rs_info;
struct ucontext32 rs_uc;
};
-#else /* ICACHE_REFILLS_WORKAROUND_WAR */
-
-struct sigframe32 {
- u32 sf_ass[4]; /* argument save space for o32 */
- u32 sf_pad[2];
- struct sigcontext32 sf_sc; /* hw context */
- compat_sigset_t sf_mask;
- u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */
-};
-
-struct rt_sigframe32 {
- u32 rs_ass[4]; /* argument save space for o32 */
- u32 rs_pad[2];
- compat_siginfo_t rs_info;
- struct ucontext32 rs_uc;
- u32 rs_code[8] __attribute__((aligned(32))); /* signal trampoline */
-};
-
-#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */
-
/*
* sigcontext handlers
*/
force_sig(SIGSEGV, current);
}
-static int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
- int signr, sigset_t *set)
+static int setup_frame_32(void *sig_return, struct k_sigaction *ka,
+ struct pt_regs *regs, int signr, sigset_t *set)
{
struct sigframe32 __user *frame;
int err = 0;
if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
goto give_sigsegv;
- err |= install_sigtramp(frame->sf_code, __NR_O32_sigreturn);
-
err |= setup_sigcontext32(regs, &frame->sf_sc);
err |= __copy_conv_sigset_to_user(&frame->sf_mask, set);
regs->regs[ 5] = 0;
regs->regs[ 6] = (unsigned long) &frame->sf_sc;
regs->regs[29] = (unsigned long) frame;
- regs->regs[31] = (unsigned long) frame->sf_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",
return -EFAULT;
}
-static int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs,
- int signr, sigset_t *set, siginfo_t *info)
+static int setup_rt_frame_32(void *sig_return, struct k_sigaction *ka,
+ struct pt_regs *regs, int signr, sigset_t *set,
+ siginfo_t *info)
{
struct rt_sigframe32 __user *frame;
int err = 0;
if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame)))
goto give_sigsegv;
- err |= install_sigtramp(frame->rs_code, __NR_O32_rt_sigreturn);
-
/* Convert (siginfo_t -> compat_siginfo_t) and copy to user. */
err |= copy_siginfo_to_user32(&frame->rs_info, info);
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",
*/
struct mips_abi mips_abi_32 = {
.setup_frame = setup_frame_32,
+ .signal_return_offset =
+ offsetof(struct mips_vdso, o32_signal_trampoline),
.setup_rt_frame = setup_rt_frame_32,
+ .rt_signal_return_offset =
+ offsetof(struct mips_vdso, o32_rt_signal_trampoline),
.restart = __NR_O32_restart_syscall
};