return newsp;
}
-static void save_user_regs(CPUPPCState *env, struct target_mcontext *frame,
- int sigret)
+static void save_user_regs(CPUPPCState *env, struct target_mcontext *frame)
{
target_ulong msr = env->msr;
int i;
/* Store MSR. */
__put_user(msr, &frame->mc_gregs[TARGET_PT_MSR]);
+}
+static void encode_trampoline(int sigret, uint32_t *tramp)
+{
/* Set up the sigreturn trampoline: li r0,sigret; sc. */
if (sigret) {
- __put_user(0x38000000UL | sigret, &frame->tramp[0]);
- __put_user(0x44000002UL, &frame->tramp[1]);
+ __put_user(0x38000000 | sigret, &tramp[0]);
+ __put_user(0x44000002, &tramp[1]);
}
}
__put_user(sig, &sc->signal);
/* Save user regs. */
- save_user_regs(env, &frame->mctx, TARGET_NR_sigreturn);
+ save_user_regs(env, &frame->mctx);
+
+ /* Construct the trampoline code on the stack. */
+ encode_trampoline(TARGET_NR_sigreturn, (uint32_t *)&frame->mctx.tramp);
/* The kernel checks for the presence of a VDSO here. We don't
emulate a vdso, so use a sigreturn system call. */
}
frame = &rt_sf->uc.tuc_mcontext;
- save_user_regs(env, frame, TARGET_NR_rt_sigreturn);
+ save_user_regs(env, frame);
+ encode_trampoline(TARGET_NR_rt_sigreturn, (uint32_t *)&frame->tramp);
/* The kernel checks for the presence of a VDSO here. We don't
emulate a vdso, so use a sigreturn system call. */