diff options
| author | Warner Losh <imp@bsdimp.com> | 2022-01-08 20:04:18 -0700 |
|---|---|---|
| committer | Warner Losh <imp@bsdimp.com> | 2022-01-28 15:53:41 -0700 |
| commit | fd5bec9ad28eaa454feaad46e68a76b9eeedb3ff (patch) | |
| tree | af6051f691e3a6a50f8f16301669db1ac09e9446 /bsd-user/strace.c | |
| parent | e625c7ef5c07431a708f9fb0d98cbfeea1ad3ccc (diff) | |
bsd-user/strace.c: print_taken_signal
print_taken_signal() prints signals when we're tracing signals.
Signed-off-by: Stacey Son <sson@FreeBSD.org>
Signed-off-by: Kyle Evans <kevans@freebsd.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'bsd-user/strace.c')
| -rw-r--r-- | bsd-user/strace.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/bsd-user/strace.c b/bsd-user/strace.c index be40b8a20c..a77d10dd6b 100644 --- a/bsd-user/strace.c +++ b/bsd-user/strace.c @@ -31,6 +31,24 @@ int do_strace; /* * Utility functions */ +static const char * +get_comma(int last) +{ + return (last) ? "" : ","; +} + +/* + * Prints out raw parameter using given format. Caller needs + * to do byte swapping if needed. + */ +static void +print_raw_param(const char *fmt, abi_long param, int last) +{ + char format[64]; + + (void)snprintf(format, sizeof(format), "%s%s", fmt, get_comma(last)); + gemu_log(format, param); +} static void print_sysctl(const struct syscallname *name, abi_long arg1, abi_long arg2, abi_long arg3, abi_long arg4, abi_long arg5, @@ -239,3 +257,82 @@ void print_openbsd_syscall_ret(int num, abi_long ret) print_syscall_ret(num, ret, openbsd_scnames, ARRAY_SIZE(openbsd_scnames)); } + +static void +print_signal(abi_ulong arg, int last) +{ + const char *signal_name = NULL; + switch (arg) { + case TARGET_SIGHUP: + signal_name = "SIGHUP"; + break; + case TARGET_SIGINT: + signal_name = "SIGINT"; + break; + case TARGET_SIGQUIT: + signal_name = "SIGQUIT"; + break; + case TARGET_SIGILL: + signal_name = "SIGILL"; + break; + case TARGET_SIGABRT: + signal_name = "SIGABRT"; + break; + case TARGET_SIGFPE: + signal_name = "SIGFPE"; + break; + case TARGET_SIGKILL: + signal_name = "SIGKILL"; + break; + case TARGET_SIGSEGV: + signal_name = "SIGSEGV"; + break; + case TARGET_SIGPIPE: + signal_name = "SIGPIPE"; + break; + case TARGET_SIGALRM: + signal_name = "SIGALRM"; + break; + case TARGET_SIGTERM: + signal_name = "SIGTERM"; + break; + case TARGET_SIGUSR1: + signal_name = "SIGUSR1"; + break; + case TARGET_SIGUSR2: + signal_name = "SIGUSR2"; + break; + case TARGET_SIGCHLD: + signal_name = "SIGCHLD"; + break; + case TARGET_SIGCONT: + signal_name = "SIGCONT"; + break; + case TARGET_SIGSTOP: + signal_name = "SIGSTOP"; + break; + case TARGET_SIGTTIN: + signal_name = "SIGTTIN"; + break; + case TARGET_SIGTTOU: + signal_name = "SIGTTOU"; + break; + } + if (signal_name == NULL) { + print_raw_param("%ld", arg, last); + return; + } + gemu_log("%s%s", signal_name, get_comma(last)); +} + +void print_taken_signal(int target_signum, const target_siginfo_t *tinfo) +{ + /* + * Print the strace output for a signal being taken: + * --- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} --- + */ + gemu_log("%d ", getpid()); + gemu_log("--- "); + print_signal(target_signum, 1); + gemu_log(" ---\n"); +} |