diff options
Diffstat (limited to 'linux-user/signal.c')
| -rw-r--r-- | linux-user/signal.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c index 1055507224..dc34ae7bbb 100644 --- a/linux-user/signal.c +++ b/linux-user/signal.c @@ -2620,6 +2620,15 @@ get_sigframe(struct target_sigaction *ka, CPUMIPSState *regs, size_t frame_size) return (sp - frame_size) & ~7; } +static void mips_set_hflags_isa_mode_from_pc(CPUMIPSState *env) +{ + if (env->insn_flags & (ASE_MIPS16 | ASE_MICROMIPS)) { + env->hflags &= ~MIPS_HFLAG_M16; + env->hflags |= (env->active_tc.PC & 1) << MIPS_HFLAG_M16_SHIFT; + env->active_tc.PC &= ~(target_ulong) 1; + } +} + # if defined(TARGET_ABI_MIPSO32) /* compare linux/arch/mips/kernel/signal.c:setup_frame() */ static void setup_frame(int sig, struct target_sigaction * ka, @@ -2662,6 +2671,7 @@ static void setup_frame(int sig, struct target_sigaction * ka, * since it returns to userland using eret * we cannot do this here, and we must set PC directly */ regs->active_tc.PC = regs->active_tc.gpr[25] = ka->_sa_handler; + mips_set_hflags_isa_mode_from_pc(regs); unlock_user_struct(frame, frame_addr, 1); return; @@ -2709,6 +2719,7 @@ long do_sigreturn(CPUMIPSState *regs) #endif regs->active_tc.PC = regs->CP0_EPC; + mips_set_hflags_isa_mode_from_pc(regs); /* I am not sure this is right, but it seems to work * maybe a problem with nested signals ? */ regs->CP0_EPC = 0; @@ -2771,6 +2782,7 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka, * since it returns to userland using eret * we cannot do this here, and we must set PC directly */ env->active_tc.PC = env->active_tc.gpr[25] = ka->_sa_handler; + mips_set_hflags_isa_mode_from_pc(env); unlock_user_struct(frame, frame_addr, 1); return; @@ -2804,6 +2816,7 @@ long do_rt_sigreturn(CPUMIPSState *env) goto badframe; env->active_tc.PC = env->CP0_EPC; + mips_set_hflags_isa_mode_from_pc(env); /* I am not sure this is right, but it seems to work * maybe a problem with nested signals ? */ env->CP0_EPC = 0; |