Commit 2f967f1d authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf trace beauty: Use the mmap flags table generated from headers 

Instead of requiring us to go on and edit sources to add new flag.

  # perf trace -e *mmap sleep 0.1
     0.025 ( 0.005 ms): sleep/29876 mmap(len: 163746, prot: READ, flags: PRIVATE, fd: 3) = 0x7faa68ad1000
     0.059 ( 0.004 ms): sleep/29876 mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS) = 0x7faa68acf000
     0.069 ( 0.006 ms): sleep/29876 mmap(len: 3889792, prot: EXEC|READ, flags: PRIVATE|DENYWRITE, fd: 3) = 0x7faa6851f000
     0.086 ( 0.009 ms): sleep/29876 mmap(addr: 0x7faa688cb000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 1753088) = 0x7faa688cb000
     0.101 ( 0.005 ms): sleep/29876 mmap(addr: 0x7faa688d1000, len: 14976, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS) = 0x7faa688d1000
     0.348 ( 0.005 ms): sleep/29876 mmap(len: 111950656, prot: READ, flags: PRIVATE, fd: 3) = 0x7faa61a5b000
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ggmoy6vxoygh5yim890ht0kf@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent fbd7458d

tools/perf/trace/beauty/mmap.c

+11 −37
Original line number Diff line number Diff line 
// SPDX-License-Identifier: LGPL-2.1

#include <uapi/linux/mman.h>

#include <linux/log2.h>



static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,

					       struct syscall_arg *arg)
@@ -30,50 +31,23 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, 


#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot



static size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size)

{

#include "trace/beauty/generated/mmap_flags_array.c"

       static DEFINE_STRARRAY(mmap_flags);



       return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, flags);

}



static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,

						struct syscall_arg *arg)

{

	int printed = 0, flags = arg->val;

	unsigned long flags = arg->val;



	if (flags & MAP_ANONYMOUS)

		arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */



#define	P_MMAP_FLAG(n) \

	if (flags & MAP_##n) { \

		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \

		flags &= ~MAP_##n; \

	}



	P_MMAP_FLAG(SHARED);

	P_MMAP_FLAG(PRIVATE);

#ifdef MAP_32BIT

	P_MMAP_FLAG(32BIT);

#endif

	P_MMAP_FLAG(ANONYMOUS);

	P_MMAP_FLAG(DENYWRITE);

	P_MMAP_FLAG(EXECUTABLE);

	P_MMAP_FLAG(FILE);

	P_MMAP_FLAG(FIXED);

#ifdef MAP_FIXED_NOREPLACE

	P_MMAP_FLAG(FIXED_NOREPLACE);

#endif

	P_MMAP_FLAG(GROWSDOWN);

	P_MMAP_FLAG(HUGETLB);

	P_MMAP_FLAG(LOCKED);

	P_MMAP_FLAG(NONBLOCK);

	P_MMAP_FLAG(NORESERVE);

	P_MMAP_FLAG(POPULATE);

	P_MMAP_FLAG(STACK);

	P_MMAP_FLAG(UNINITIALIZED);

#ifdef MAP_SYNC

	P_MMAP_FLAG(SYNC);

#endif

#undef P_MMAP_FLAG



	if (flags)

		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);



	return printed;

	return mmap__scnprintf_flags(flags, bf, size);

}



#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags

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