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2f967f1dbb
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: Arnaldo Carvalho de Melo <acme@redhat.com>
96 lines
2.6 KiB
C
96 lines
2.6 KiB
C
// SPDX-License-Identifier: LGPL-2.1
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#include <uapi/linux/mman.h>
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#include <linux/log2.h>
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static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
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struct syscall_arg *arg)
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{
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int printed = 0, prot = arg->val;
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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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P_MMAP_PROT(SEM);
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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 size_t mmap__scnprintf_flags(unsigned long flags, char *bf, size_t size)
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{
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#include "trace/beauty/generated/mmap_flags_array.c"
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static DEFINE_STRARRAY(mmap_flags);
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return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, flags);
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}
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static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
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struct syscall_arg *arg)
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{
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unsigned long flags = arg->val;
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if (flags & MAP_ANONYMOUS)
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arg->mask |= (1 << 4) | (1 << 5); /* Mask 4th ('fd') and 5th ('offset') args, ignored */
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return mmap__scnprintf_flags(flags, bf, size);
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}
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#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
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static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
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struct syscall_arg *arg)
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{
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int printed = 0, flags = arg->val;
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#define P_MREMAP_FLAG(n) \
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if (flags & MREMAP_##n) { \
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printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
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flags &= ~MREMAP_##n; \
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}
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P_MREMAP_FLAG(MAYMOVE);
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P_MREMAP_FLAG(FIXED);
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#undef P_MREMAP_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_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
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static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size)
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{
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#include "trace/beauty/generated/madvise_behavior_array.c"
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static DEFINE_STRARRAY(madvise_advices);
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if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL)
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return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]);
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return scnprintf(bf, size, "%#", behavior);
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}
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static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
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struct syscall_arg *arg)
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{
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return madvise__scnprintf_behavior(arg->val, bf, size);
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}
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#define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
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