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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 09:05:12 +07:00
5ce29d522e
To match strace output:
# cat mmap.c
#include <sys/mman.h>
int main(void)
{
mmap(0, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
return 0;
}
# strace -e mmap ./mmap |& grep -v ^+++
mmap(NULL, 103484, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f5bae400000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5bae3fe000
mmap(NULL, 3889792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f5bade40000
mmap(0x7f5bae1ec000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x7f5bae1ec000
mmap(0x7f5bae1f2000, 14976, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f5bae1f2000
mmap(NULL, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5bae419000
# trace -e mmap ./mmap |& grep -v ^+++
mmap(NULL, 103484, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f6646c25000
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS) = 0x7f6646c23000
mmap(NULL, 3889792, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f6646665000
mmap(0x7f6646a11000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x7f6646a11000
mmap(0x7f6646a17000, 14976, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS) = 0x7f6646a17000
mmap(NULL, 4096, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_ANONYMOUS) = 0x7f6646c3e000
#
Reported-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-nt49d6iqle80cw8f529ovaqi@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
100 lines
3.0 KiB
C
100 lines
3.0 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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const char *prot_prefix = "PROT_";
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int printed = 0, prot = arg->val;
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bool show_prefix = arg->show_string_prefix;
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if (prot == PROT_NONE)
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return scnprintf(bf, size, "%sNONE", show_prefix ? prot_prefix : "");
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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%s", printed ? "|" : "", show_prefix ? prot_prefix :"", #n); \
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prot &= ~PROT_##n; \
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}
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P_MMAP_PROT(READ);
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P_MMAP_PROT(WRITE);
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P_MMAP_PROT(EXEC);
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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, bool show_prefix)
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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, "MAP_");
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return strarray__scnprintf_flags(&strarray__mmap_flags, bf, size, show_prefix, 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, arg->show_string_prefix);
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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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const char *flags_prefix = "MREMAP_";
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bool show_prefix = arg->show_string_prefix;
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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%s", printed ? "|" : "", show_prefix ? flags_prefix : "", #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, "MADV_");
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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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