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perf trace: Use the autogenerated mmap 'prot' string/id table

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No change in behaviour:

  # perf trace -e mmap sleep 1
       0.000 ( 0.009 ms): sleep/751870 mmap(len: 143317, prot: READ, flags: PRIVATE, fd: 3)                  = 0x7fa96d0f7000
       0.028 ( 0.004 ms): sleep/751870 mmap(len: 8192, prot: READ|WRITE, flags: PRIVATE|ANONYMOUS)           = 0x7fa96d0f5000
       0.037 ( 0.005 ms): sleep/751870 mmap(len: 1872744, prot: READ, flags: PRIVATE|DENYWRITE, fd: 3)       = 0x7fa96cf2b000
       0.044 ( 0.011 ms): sleep/751870 mmap(addr: 0x7fa96cf50000, len: 1376256, prot: READ|EXEC, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x25000) = 0x7fa96cf50000
       0.056 ( 0.007 ms): sleep/751870 mmap(addr: 0x7fa96d0a0000, len: 307200, prot: READ, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x175000) = 0x7fa96d0a0000
       0.064 ( 0.007 ms): sleep/751870 mmap(addr: 0x7fa96d0eb000, len: 24576, prot: READ|WRITE, flags: PRIVATE|FIXED|DENYWRITE, fd: 3, off: 0x1bf000) = 0x7fa96d0eb000
       0.075 ( 0.005 ms): sleep/751870 mmap(addr: 0x7fa96d0f1000, len: 13160, prot: READ|WRITE, flags: PRIVATE|FIXED|ANONYMOUS) = 0x7fa96d0f1000
       0.253 ( 0.005 ms): sleep/751870 mmap(len: 218049136, prot: READ, flags: PRIVATE, fd: 3)               = 0x7fa95ff38000
  #
  #
  # set -o vi
  # strace -e mmap sleep 1
  mmap(NULL, 143317, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f333bd83000
  mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f333bd81000
  mmap(NULL, 1872744, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f333bbb7000
  mmap(0x7f333bbdc000, 1376256, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7f333bbdc000
  mmap(0x7f333bd2c000, 307200, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x175000) = 0x7f333bd2c000
  mmap(0x7f333bd77000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1bf000) = 0x7f333bd77000
  mmap(0x7f333bd7d000, 13160, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f333bd7d000
  mmap(NULL, 218049136, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f332ebc4000
  +++ exited with 0 +++
  #

And you can as well tweak 'perf trace's output to more closely match
strace's:

  # perf config trace.show_arg_names=no
  # perf config trace.show_duration=no
  # perf config trace.show_prefix=yes
  # perf config trace.show_timestamp=no
  # perf config trace.show_zeros=yes
  # perf config trace.no_inherit=yes
  # perf trace -e mmap sleep 1
  mmap(NULL, 143317, PROT_READ, MAP_PRIVATE, 3, 0)                      = 0x7f0d287ca000
  mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS)     = 0x7f0d287c8000
  mmap(NULL, 1872744, PROT_READ, MAP_PRIVATE|MAP_DENYWRITE, 3, 0)       = 0x7f0d285fe000
  mmap(0x7f0d28623000, 1376256, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x25000) = 0x7f0d28623000
  mmap(0x7f0d28773000, 307200, PROT_READ, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x175000) = 0x7f0d28773000
  mmap(0x7f0d287be000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1bf000) = 0x7f0d287be000
  mmap(0x7f0d287c4000, 13160, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS) = 0x7f0d287c4000
  mmap(NULL, 218049136, PROT_READ, MAP_PRIVATE, 3, 0)                   = 0x7f0d1b60b000
  #

  # perf config | grep ^trace
  trace.show_arg_names=no
  trace.show_duration=no
  trace.show_prefix=yes
  trace.show_timestamp=no
  trace.show_zeros=yes
  trace.no_inherit=yes
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2020-10-01 11:23:38 -03:00
parent 08fc476214
commit 388968d864
2 changed files with 21 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
tools/perf/Makefile.perf
View File

@ -555,6 +555,13 @@ move_mount_flags_tbl := $(srctree)/tools/perf/trace/beauty/move_mount_flags.sh
$(move_mount_flags_array): $(linux_uapi_dir)/fs.h $(move_mount_flags_tbl)
$(Q)$(SHELL) '$(move_mount_flags_tbl)' $(linux_uapi_dir) > $@
mmap_prot_array := $(beauty_outdir)/mmap_prot_array.c
mmap_prot_tbl := $(srctree)/tools/perf/trace/beauty/mmap_prot.sh
$(mmap_prot_array): $(asm_generic_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman-common.h $(mmap_prot_tbl)
$(Q)$(SHELL) '$(mmap_prot_tbl)' $(asm_generic_uapi_dir) $(arch_asm_uapi_dir) > $@
prctl_option_array := $(beauty_outdir)/prctl_option_array.c
prctl_hdr_dir := $(srctree)/tools/include/uapi/linux/
prctl_option_tbl := $(srctree)/tools/perf/trace/beauty/prctl_option.sh
@ -716,6 +723,7 @@ prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioc
$(vhost_virtio_ioctl_array) \
$(madvise_behavior_array) \
$(mmap_flags_array) \
$(mmap_prot_array) \
$(mremap_flags_array) \
$(mount_flags_array) \
$(move_mount_flags_array) \
@ -1015,6 +1023,7 @@ clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clea
$(OUTPUT)$(fspick_arrays) \
$(OUTPUT)$(madvise_behavior_array) \
$(OUTPUT)$(mmap_flags_array) \
$(OUTPUT)$(mmap_prot_array) \
$(OUTPUT)$(mremap_flags_array) \
$(OUTPUT)$(mount_flags_array) \
$(OUTPUT)$(move_mount_flags_array) \

36
tools/perf/trace/beauty/mmap.c
View File

@ -1,34 +1,22 @@
// 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)
#include "trace/beauty/generated/mmap_prot_array.c"
static DEFINE_STRARRAY(mmap_prot, "PROT_");
static size_t mmap__scnprintf_prot(unsigned long prot, char *bf, size_t size, bool show_prefix)
{
const char *prot_prefix = "PROT_";
int printed = 0, prot = arg->val;
bool show_prefix = arg->show_string_prefix;
return strarray__scnprintf_flags(&strarray__mmap_prot, bf, size, show_prefix, prot);
}
if (prot == PROT_NONE)
return scnprintf(bf, size, "%sNONE", show_prefix ? prot_prefix : "");
#define P_MMAP_PROT(n) \
if (prot & PROT_##n) { \
printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? prot_prefix :"", #n); \
prot &= ~PROT_##n; \
}
static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size, struct syscall_arg *arg)
{
unsigned long prot = arg->val;
P_MMAP_PROT(READ);
P_MMAP_PROT(WRITE);
P_MMAP_PROT(EXEC);
P_MMAP_PROT(SEM);
P_MMAP_PROT(GROWSDOWN);
P_MMAP_PROT(GROWSUP);
#undef P_MMAP_PROT
if (prot == 0)
return scnprintf(bf, size, "%sNONE", arg->show_string_prefix ? strarray__mmap_prot.prefix : "");
if (prot)
printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", prot);
return printed;
return mmap__scnprintf_prot(prot, bf, size, arg->show_string_prefix);
}
#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot