diff options
Diffstat (limited to 'linux-user/mips')
| -rw-r--r-- | linux-user/mips/cpu_loop.c | 46 |
1 files changed, 26 insertions, 20 deletions
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c index 32f9fc1..4fa24cc 100644 --- a/linux-user/mips/cpu_loop.c +++ b/linux-user/mips/cpu_loop.c @@ -40,29 +40,25 @@ enum { BRK_DIVZERO = 7 }; -static int do_break(CPUMIPSState *env, target_siginfo_t *info, - unsigned int code) +static void do_tr_or_bp(CPUMIPSState *env, unsigned int code, bool trap) { - int ret = -1; + target_ulong pc = env->active_tc.PC; switch (code) { case BRK_OVERFLOW: + force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTOVF, pc); + break; case BRK_DIVZERO: - info->si_signo = TARGET_SIGFPE; - info->si_errno = 0; - info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV; - queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info); - ret = 0; + force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTDIV, pc); break; default: - info->si_signo = TARGET_SIGTRAP; - info->si_errno = 0; - queue_signal(env, info->si_signo, QEMU_SI_FAULT, &*info); - ret = 0; + if (trap) { + force_sig(TARGET_SIGTRAP); + } else { + force_sig_fault(TARGET_SIGTRAP, TARGET_TRAP_BRKPT, pc); + } break; } - - return ret; } void cpu_loop(CPUMIPSState *env) @@ -205,6 +201,13 @@ done_syscall: abi_ulong trap_instr; unsigned int code; + /* + * FIXME: It would be better to decode the trap number + * during translate, and store it in error_code while + * raising the exception. We should not be re-reading + * the opcode here. + */ + if (env->hflags & MIPS_HFLAG_M16) { if (env->insn_flags & ASE_MICROMIPS) { /* microMIPS mode */ @@ -257,9 +260,7 @@ done_syscall: } } - if (do_break(env, &info, code) != 0) { - goto error; - } + do_tr_or_bp(env, code, false); } break; case EXCP_TRAP: @@ -267,6 +268,13 @@ done_syscall: abi_ulong trap_instr; unsigned int code = 0; + /* + * FIXME: It would be better to decode the trap number + * during translate, and store it in error_code while + * raising the exception. We should not be re-reading + * the opcode here. + */ + if (env->hflags & MIPS_HFLAG_M16) { /* microMIPS mode */ abi_ulong instr[2]; @@ -293,9 +301,7 @@ done_syscall: } } - if (do_break(env, &info, code) != 0) { - goto error; - } + do_tr_or_bp(env, code, true); } break; case EXCP_ATOMIC: |