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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-03-31 01:43:32 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-03-31 16:42:22 +0300 |
| commit | 997bba8cf1875d9715e792c445e1a9c7a4c365e2 (patch) | |
| tree | a73251940791014ce79331d8c0167c2a0dd7ae12 /tools/perf/builtin-trace.c | |
| parent | 3ed5ca2efff70e9f589087c2013789572901112d (diff) | |
| download | linux-997bba8cf1875d9715e792c445e1a9c7a4c365e2.tar.xz | |
perf trace: Pretty print seccomp() args
E.g:
# trace -e seccomp
200.061 (0.009 ms): :2441/2441 seccomp(op: FILTER, flags: TSYNC ) = -1 EFAULT Bad address
200.910 (0.121 ms): :2441/2441 seccomp(op: FILTER, flags: TSYNC, uargs: 0x7fff57479fe0) = 0
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-t369uckshlwp4evkks4bcoo7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-trace.c')
| -rw-r--r-- | tools/perf/builtin-trace.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 6485576f3337..0c8bcb94934e 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -40,6 +40,10 @@ #include <sys/mman.h> #include <linux/futex.h> #include <linux/err.h> +#include <linux/seccomp.h> +#include <linux/filter.h> +#include <linux/audit.h> +#include <sys/ptrace.h> /* For older distros: */ #ifndef MAP_STACK @@ -1001,6 +1005,46 @@ static const char *tioctls[] = { static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401); #endif /* defined(__i386__) || defined(__x86_64__) */ +static size_t syscall_arg__scnprintf_seccomp_op(char *bf, size_t size, struct syscall_arg *arg) +{ + int op = arg->val; + size_t printed = 0; + + switch (op) { +#define P_SECCOMP_SET_MODE_OP(n) case SECCOMP_SET_MODE_##n: printed = scnprintf(bf, size, #n); break + P_SECCOMP_SET_MODE_OP(STRICT); + P_SECCOMP_SET_MODE_OP(FILTER); +#undef P_SECCOMP_SET_MODE_OP + default: printed = scnprintf(bf, size, "%#x", op); break; + } + + return printed; +} + +#define SCA_SECCOMP_OP syscall_arg__scnprintf_seccomp_op + +static size_t syscall_arg__scnprintf_seccomp_flags(char *bf, size_t size, + struct syscall_arg *arg) +{ + int printed = 0, flags = arg->val; + +#define P_FLAG(n) \ + if (flags & SECCOMP_FILTER_FLAG_##n) { \ + printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ + flags &= ~SECCOMP_FILTER_FLAG_##n; \ + } + + P_FLAG(TSYNC); +#undef P_FLAG + + if (flags) + printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags); + + return printed; +} + +#define SCA_SECCOMP_FLAGS syscall_arg__scnprintf_seccomp_flags + #define STRARRAY(arg, name, array) \ .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \ .arg_parm = { [arg] = &strarray__##array, } @@ -1234,6 +1278,9 @@ static struct syscall_fmt { .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, }, { .name = "rt_tgsigqueueinfo", .errmsg = true, .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, }, + { .name = "seccomp", .errmsg = true, + .arg_scnprintf = { [0] = SCA_SECCOMP_OP, /* op */ + [1] = SCA_SECCOMP_FLAGS, /* flags */ }, }, { .name = "select", .errmsg = true, .timeout = true, }, { .name = "sendmmsg", .errmsg = true, .arg_scnprintf = { [0] = SCA_FD, /* fd */ |