diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-trace.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c index 60ee811..81c20a6 100644 --- a/tools/perf/builtin-trace.c +++ b/tools/perf/builtin-trace.c @@ -11,6 +11,7 @@ #include <libaudit.h> #include <stdlib.h> +#include <sys/mman.h> static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long arg) { @@ -19,6 +20,36 @@ static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long ar #define SCA_HEX syscall_arg__scnprintf_hex +static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, unsigned long arg) +{ + int printed = 0, prot = arg; + + if (prot == PROT_NONE) + return scnprintf(bf, size, "NONE"); +#define P_MMAP_PROT(n) \ + if (prot & PROT_##n) { \ + printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \ + prot &= ~PROT_##n; \ + } + + P_MMAP_PROT(EXEC); + P_MMAP_PROT(READ); + P_MMAP_PROT(WRITE); +#ifdef PROT_SEM + P_MMAP_PROT(SEM); +#endif + P_MMAP_PROT(GROWSDOWN); + P_MMAP_PROT(GROWSUP); +#undef P_MMAP_PROT + + if (prot) + printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot); + + return printed; +} + +#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot + static struct syscall_fmt { const char *name; const char *alias; @@ -40,10 +71,14 @@ static struct syscall_fmt { .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, }, { .name = "lstat", .errmsg = true, .alias = "newlstat", }, { .name = "mmap", .hexret = true, - .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, + .arg_scnprintf = { [0] = SCA_HEX, /* addr */ + [2] = SCA_MMAP_PROT, /* prot */ }, }, { .name = "mprotect", .errmsg = true, - .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, - { .name = "mremap", .hexret = true, }, + .arg_scnprintf = { [0] = SCA_HEX, /* start */ + [2] = SCA_MMAP_PROT, /* prot */ }, }, + { .name = "mremap", .hexret = true, + .arg_scnprintf = { [0] = SCA_HEX, /* addr */ + [4] = SCA_HEX, /* new_addr */ }, }, { .name = "munmap", .errmsg = true, .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, }, { .name = "open", .errmsg = true, }, |