linux-user/aarch64: Set siginfo_t addr field for SIGTRAP signals

When generating a TRAP_BRKPT SIGTRAP, set the siginfo_t addr field
to the PC where the breakpoint/singlestep trap occurred; this is
what the kernel does for this signal for this architecture.

Fixes: Coverity 1459154
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20210813131809.28655-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

diff --git a/linux-user/aarch64/cpu_loop.c b/linux-user/aarch64/cpu_loop.c
index 5425b85659a9bdcb7ad14bb44feb28f475ae8687..980e734e54f3af63c0e65aef08ac1901bb1c3ca0 100644 (file)
--- a/linux-user/aarch64/cpu_loop.c
+++ b/linux-user/aarch64/cpu_loop.c
@@ -150,6 +150,7 @@ void cpu_loop(CPUARMState *env)
             info.si_signo = TARGET_SIGTRAP;
             info.si_errno = 0;
             info.si_code = TARGET_TRAP_BRKPT;
+            info._sifields._sigfault._addr = env->pc;
             queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
             break;
         case EXCP_SEMIHOST: