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perf trace: Add beautifier for mmap prot parm
[root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.984 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd62ae000 1.114 ( 0.016 ms): mmap(addr: 0, len: 125100, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xd628f000 1.252 ( 0.020 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: 2050, fd: 3, off: 0) = 0xc1600000 1.282 ( 0.024 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.315 ( 0.026 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: 2066, fd: 3, off: 1757184) = 0xc19ad000 1.352 ( 0.017 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: 50, fd: 4294967295, off: 0) = 0xc19b3000 1.415 ( 0.011 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628e000 1.440 ( 0.011 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: 34, fd: 4294967295, off: 0) = 0xd628c000 1.569 ( 0.019 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.591 ( 0.017 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.616 ( 0.016 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 2.105 ( 0.018 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: 2, fd: 3, off: 0 ) = 0xcfe9c000 [root@zoo ~]# Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-q1ubhdd9wigxneam616ggdsn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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@ -11,6 +11,7 @@
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#include <libaudit.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long arg)
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{
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@ -19,6 +20,36 @@ static size_t syscall_arg__scnprintf_hex(char *bf, size_t size, unsigned long ar
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#define SCA_HEX syscall_arg__scnprintf_hex
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static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, unsigned long arg)
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{
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int printed = 0, prot = arg;
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if (prot == PROT_NONE)
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return scnprintf(bf, size, "NONE");
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#define P_MMAP_PROT(n) \
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if (prot & PROT_##n) { \
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printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
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prot &= ~PROT_##n; \
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}
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P_MMAP_PROT(EXEC);
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P_MMAP_PROT(READ);
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P_MMAP_PROT(WRITE);
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#ifdef PROT_SEM
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P_MMAP_PROT(SEM);
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#endif
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P_MMAP_PROT(GROWSDOWN);
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P_MMAP_PROT(GROWSUP);
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#undef P_MMAP_PROT
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if (prot)
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printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
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return printed;
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}
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#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
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static struct syscall_fmt {
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const char *name;
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const char *alias;
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@ -40,10 +71,14 @@ static struct syscall_fmt {
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.arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
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{ .name = "lstat", .errmsg = true, .alias = "newlstat", },
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{ .name = "mmap", .hexret = true,
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.arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
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.arg_scnprintf = { [0] = SCA_HEX, /* addr */
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[2] = SCA_MMAP_PROT, /* prot */ }, },
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{ .name = "mprotect", .errmsg = true,
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.arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
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{ .name = "mremap", .hexret = true, },
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.arg_scnprintf = { [0] = SCA_HEX, /* start */
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[2] = SCA_MMAP_PROT, /* prot */ }, },
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{ .name = "mremap", .hexret = true,
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.arg_scnprintf = { [0] = SCA_HEX, /* addr */
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[4] = SCA_HEX, /* new_addr */ }, },
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{ .name = "munmap", .errmsg = true,
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.arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
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{ .name = "open", .errmsg = true, },
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