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[PATCH v3 32/41] linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP
From: |
Richard Henderson |
Subject: |
[PATCH v3 32/41] linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP_FPE |
Date: |
Fri, 1 Oct 2021 13:11:42 -0400 |
The kernel vectors both of these through unhandled_exception, which
results in force_sig(SIGSEGV). This isn't very useful for userland
when enabling overflow traps or fpu traps, but c'est la vie.
Cc: Stafford Horne <shorne@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/openrisc/cpu_loop.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/linux-user/openrisc/cpu_loop.c b/linux-user/openrisc/cpu_loop.c
index f6360db47c..de5417a262 100644
--- a/linux-user/openrisc/cpu_loop.c
+++ b/linux-user/openrisc/cpu_loop.c
@@ -56,13 +56,17 @@ void cpu_loop(CPUOpenRISCState *env)
break;
case EXCP_DPF:
case EXCP_IPF:
- case EXCP_RANGE:
info.si_signo = TARGET_SIGSEGV;
info.si_errno = 0;
info.si_code = TARGET_SEGV_MAPERR;
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
+ case EXCP_RANGE:
+ case EXCP_FPE:
+ /* ??? The kernel vectors both of these to unhandled_exception. */
+ force_sig(TARGET_SIGSEGV);
+ break;
case EXCP_ALIGN:
info.si_signo = TARGET_SIGBUS;
info.si_errno = 0;
@@ -77,13 +81,6 @@ void cpu_loop(CPUOpenRISCState *env)
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
- case EXCP_FPE:
- info.si_signo = TARGET_SIGFPE;
- info.si_errno = 0;
- info.si_code = 0;
- info._sifields._sigfault._addr = env->pc;
- queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
- break;
case EXCP_INTERRUPT:
/* We processed the pending cpu work above. */
break;
--
2.25.1
- [PATCH v3 09/41] linux-user/host/alpha: Populate host_signal.h, (continued)
- [PATCH v3 09/41] linux-user/host/alpha: Populate host_signal.h, Richard Henderson, 2021/10/01
- [PATCH v3 20/41] linux-user: Add cpu_loop_exit_segv, Richard Henderson, 2021/10/01
- [PATCH v3 24/41] target/cris: Make cris_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/01
- [PATCH v3 25/41] target/hexagon: Remove hexagon_cpu_tlb_fill, Richard Henderson, 2021/10/01
- [PATCH v3 27/41] target/i386: Implement x86_cpu_record_sigsegv, Richard Henderson, 2021/10/01
- [PATCH v3 28/41] target/m68k: Make m68k_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/01
- [PATCH v3 17/41] linux-user/host/riscv: Improve host_signal_write, Richard Henderson, 2021/10/01
- [PATCH v3 19/41] hw/core: Add TCGCPUOps.record_sigsegv, Richard Henderson, 2021/10/01
- [PATCH v3 32/41] linux-user/openrisc: Adjust signal for EXCP_RANGE, EXCP_FPE,
Richard Henderson <=
- [PATCH v3 30/41] target/mips: Make mips_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/01
- [PATCH v3 31/41] target/nios2: Implement nios2_cpu_record_sigsegv, Richard Henderson, 2021/10/01
- [PATCH v3 35/41] target/riscv: Make riscv_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/01
- [PATCH v3 37/41] target/s390x: Implement s390_cpu_record_sigsegv, Richard Henderson, 2021/10/01
- [PATCH v3 39/41] target/sparc: Make sparc_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/01
- [PATCH v3 26/41] target/hppa: Make hppa_cpu_tlb_fill sysemu only, Richard Henderson, 2021/10/01