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| author | Mikulas Patocka <mpatocka@redhat.com> | 2023-09-28 21:55:20 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-10-18 15:32:16 -0700 |
| commit | 6fad9b4bb91dcc824f9c00a36ee843883b58313b (patch) | |
| tree | f4cd35611ee0b219b1430288f07e7c8770eb5093 /linux-user | |
| parent | e6e66b03287331abc6f184456dbc6d25505590ec (diff) | |
| download | qemu-6fad9b4bb91dcc824f9c00a36ee843883b58313b.zip qemu-6fad9b4bb91dcc824f9c00a36ee843883b58313b.tar.gz qemu-6fad9b4bb91dcc824f9c00a36ee843883b58313b.tar.bz2 | |
linux-user/mips: fix abort on integer overflow
QEMU mips userspace emulation crashes with "qemu: unhandled CPU exception
0x15 - aborting" when one of the integer arithmetic instructions detects
an overflow.
This patch fixes it so that it delivers SIGFPE with FPE_INTOVF instead.
Cc: qemu-stable@nongnu.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Message-Id: <3ef979a8-3ee1-eb2d-71f7-d788ff88dd11@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/mips/cpu_loop.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c index 8735e58..990b03e 100644 --- a/linux-user/mips/cpu_loop.c +++ b/linux-user/mips/cpu_loop.c @@ -180,7 +180,9 @@ done_syscall: } force_sig_fault(TARGET_SIGFPE, si_code, env->active_tc.PC); break; - + case EXCP_OVERFLOW: + force_sig_fault(TARGET_SIGFPE, TARGET_FPE_INTOVF, env->active_tc.PC); + break; /* The code below was inspired by the MIPS Linux kernel trap * handling code in arch/mips/kernel/traps.c. */ |