perf trace: Add beautifier for mmap flags parm
[root@zoo ~]# perf trace -e mmap,mprotect sleep 1 0.992 ( 0.015 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa60be000 1.108 ( 0.012 ms): mmap(addr: 0, len: 125100, prot: READ, flags: PRIVATE, fd: 3, off: 0 ) = 0xa609f000 1.209 ( 0.014 ms): mmap(addr: 0x33c1600000, len: 3896312, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3, off: 0) = 0xc1600000 1.232 ( 0.018 ms): mprotect(start: 0x33c17ad000, len: 2097152, prot: NONE ) = 0 1.255 ( 0.018 ms): mmap(addr: 0x33c19ad000, len: 24576, prot: READ|WRITE, flags: PRIVATE|DENYWRITE|FIXED, fd: 3, off: 1757184) = 0xc19ad000 1.281 ( 0.011 ms): mmap(addr: 0x33c19b3000, len: 17400, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS|FIXED, fd: 4294967295, off: 0) = 0xc19b3000 1.328 ( 0.008 ms): mmap(addr: 0, len: 4096, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609e000 1.346 ( 0.008 ms): mmap(addr: 0, len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS, fd: 4294967295, off: 0) = 0xa609c000 1.443 ( 0.013 ms): mprotect(start: 0x606000, len: 4096, prot: READ ) = 0 1.459 ( 0.011 ms): mprotect(start: 0x33c19ad000, len: 16384, prot: READ ) = 0 1.477 ( 0.011 ms): mprotect(start: 0x33c1420000, len: 4096, prot: READ ) = 0 1.855 ( 0.013 ms): mmap(addr: 0, len: 104789808, prot: READ, flags: PRIVATE, fd: 3, off: 0) = 0x9fcac000 [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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@ -50,6 +50,44 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, unsigned l
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#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
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static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size, unsigned long arg)
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{
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int printed = 0, flags = arg;
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#define P_MMAP_FLAG(n) \
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if (flags & MAP_##n) { \
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printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
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flags &= ~MAP_##n; \
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}
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P_MMAP_FLAG(SHARED);
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P_MMAP_FLAG(PRIVATE);
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P_MMAP_FLAG(32BIT);
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P_MMAP_FLAG(ANONYMOUS);
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P_MMAP_FLAG(DENYWRITE);
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P_MMAP_FLAG(EXECUTABLE);
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P_MMAP_FLAG(FILE);
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P_MMAP_FLAG(FIXED);
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P_MMAP_FLAG(GROWSDOWN);
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P_MMAP_FLAG(HUGETLB);
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P_MMAP_FLAG(LOCKED);
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P_MMAP_FLAG(NONBLOCK);
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P_MMAP_FLAG(NORESERVE);
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P_MMAP_FLAG(POPULATE);
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P_MMAP_FLAG(STACK);
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#ifdef MAP_UNINITIALIZED
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P_MMAP_FLAG(UNINITIALIZED);
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#endif
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#undef P_MMAP_FLAG
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if (flags)
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printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
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return printed;
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}
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#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
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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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@ -72,7 +110,8 @@ static struct syscall_fmt {
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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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[2] = SCA_MMAP_PROT, /* prot */ }, },
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[2] = SCA_MMAP_PROT, /* prot */
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[3] = SCA_MMAP_FLAGS, /* flags */ }, },
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{ .name = "mprotect", .errmsg = true,
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.arg_scnprintf = { [0] = SCA_HEX, /* start */
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[2] = SCA_MMAP_PROT, /* prot */ }, },
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