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perf trace beauty: Add script to autogenerate mremap's flags args string/id table
It'll also conditionally generate the defines, so that if we don't have those when building a new tool tarball in an older systems, we get those, and we need them sometimes in the actual scnprintf routine, such as when checking if a flags means we have an extra arg, like with MREMAP_FIXED. $ tools/perf/trace/beauty/mremap_flags.sh static const char *mremap_flags[] = { [ilog2(1) + 1] = "MAYMOVE", #ifndef MREMAP_MAYMOVE #define MREMAP_MAYMOVE 1 #endif [ilog2(2) + 1] = "FIXED", #ifndef MREMAP_FIXED #define MREMAP_FIXED 2 #endif [ilog2(4) + 1] = "DONTUNMAP", #ifndef MREMAP_DONTUNMAP #define MREMAP_DONTUNMAP 4 #endif }; $ 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>
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d758d5d474
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9012e3dda2
3 changed files with 39 additions and 19 deletions
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@ -537,6 +537,12 @@ mmap_flags_tbl := $(srctree)/tools/perf/trace/beauty/mmap_flags.sh
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$(mmap_flags_array): $(linux_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman-common.h $(mmap_flags_tbl)
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$(mmap_flags_array): $(linux_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman.h $(asm_generic_uapi_dir)/mman-common.h $(mmap_flags_tbl)
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$(Q)$(SHELL) '$(mmap_flags_tbl)' $(linux_uapi_dir) $(asm_generic_uapi_dir) $(arch_asm_uapi_dir) > $@
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$(Q)$(SHELL) '$(mmap_flags_tbl)' $(linux_uapi_dir) $(asm_generic_uapi_dir) $(arch_asm_uapi_dir) > $@
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mremap_flags_array := $(beauty_outdir)/mremap_flags_array.c
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mremap_flags_tbl := $(srctree)/tools/perf/trace/beauty/mremap_flags.sh
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$(mremap_flags_array): $(linux_uapi_dir)/mman.h $(mremap_flags_tbl)
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$(Q)$(SHELL) '$(mremap_flags_tbl)' $(linux_uapi_dir) > $@
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mount_flags_array := $(beauty_outdir)/mount_flags_array.c
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mount_flags_array := $(beauty_outdir)/mount_flags_array.c
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mount_flags_tbl := $(srctree)/tools/perf/trace/beauty/mount_flags.sh
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mount_flags_tbl := $(srctree)/tools/perf/trace/beauty/mount_flags.sh
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@ -710,6 +716,7 @@ prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioc
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$(vhost_virtio_ioctl_array) \
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$(vhost_virtio_ioctl_array) \
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$(madvise_behavior_array) \
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$(madvise_behavior_array) \
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$(mmap_flags_array) \
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$(mmap_flags_array) \
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$(mremap_flags_array) \
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$(mount_flags_array) \
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$(mount_flags_array) \
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$(move_mount_flags_array) \
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$(move_mount_flags_array) \
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$(perf_ioctl_array) \
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$(perf_ioctl_array) \
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@ -1008,6 +1015,7 @@ clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clea
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$(OUTPUT)$(fspick_arrays) \
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$(OUTPUT)$(fspick_arrays) \
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$(OUTPUT)$(madvise_behavior_array) \
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$(OUTPUT)$(madvise_behavior_array) \
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$(OUTPUT)$(mmap_flags_array) \
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$(OUTPUT)$(mmap_flags_array) \
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$(OUTPUT)$(mremap_flags_array) \
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$(OUTPUT)$(mount_flags_array) \
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$(OUTPUT)$(mount_flags_array) \
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$(OUTPUT)$(move_mount_flags_array) \
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$(OUTPUT)$(move_mount_flags_array) \
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$(OUTPUT)$(drm_ioctl_array) \
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$(OUTPUT)$(drm_ioctl_array) \
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@ -34,7 +34,7 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
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#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
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#define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
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#include "trace/beauty/generated/mmap_flags_array.c"
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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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static DEFINE_STRARRAY(mmap_flags, "MAP_");
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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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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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{
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@ -54,28 +54,22 @@ static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
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#define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
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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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#include "trace/beauty/generated/mremap_flags_array.c"
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struct syscall_arg *arg)
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static DEFINE_STRARRAY(mremap_flags, "MREMAP_");
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static size_t mremap__scnprintf_flags(unsigned long flags, char *bf, size_t size, bool show_prefix)
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{
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{
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const char *flags_prefix = "MREMAP_";
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return strarray__scnprintf_flags(&strarray__mremap_flags, bf, size, show_prefix, flags);
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bool show_prefix = arg->show_string_prefix;
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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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static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size, struct syscall_arg *arg)
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if (flags & MREMAP_##n) { \
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{
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printed += scnprintf(bf + printed, size - printed, "%s%s%s", printed ? "|" : "", show_prefix ? flags_prefix : "", #n); \
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unsigned long flags = arg->val;
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flags &= ~MREMAP_##n; \
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}
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P_MREMAP_FLAG(MAYMOVE);
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if (!(flags & MREMAP_FIXED))
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P_MREMAP_FLAG(FIXED);
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arg->mask |= (1 << 5); /* Mask 5th ('new_address') args, ignored */
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P_MREMAP_FLAG(DONTUNMAP);
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#undef P_MREMAP_FLAG
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if (flags)
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return mremap__scnprintf_flags(flags, bf, size, arg->show_string_prefix);
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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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}
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#define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
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#define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
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18
tools/perf/trace/beauty/mremap_flags.sh
Executable file
18
tools/perf/trace/beauty/mremap_flags.sh
Executable file
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@ -0,0 +1,18 @@
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#!/bin/sh
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# SPDX-License-Identifier: LGPL-2.1
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if [ $# -ne 1 ] ; then
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linux_header_dir=tools/include/uapi/linux
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else
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linux_header_dir=$1
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fi
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linux_mman=${linux_header_dir}/mman.h
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printf "static const char *mremap_flags[] = {\n"
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regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MREMAP_([[:alnum:]_]+)[[:space:]]+((0x)?[[:xdigit:]]+)[[:space:]]*.*'
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egrep -q $regex ${linux_mman} && \
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(egrep $regex ${linux_mman} | \
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sed -r "s/$regex/\2 \1 \1 \1 \2/g" | \
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xargs printf "\t[ilog2(%s) + 1] = \"%s\",\n#ifndef MREMAP_%s\n#define MREMAP_%s %s\n#endif\n")
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printf "};\n"
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