2009-11-16 05:52:56

by tip-bot for Wenji Huang

[permalink] [raw]
Subject: [PATCH] Kbuild: clean up marker

Drop Module.markers from cleaning list.

Signed-off-by: Wenji Huang <[email protected]>
---
Makefile | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 8278361..1c8c3e1 100644
--- a/Makefile
+++ b/Makefile
@@ -1198,7 +1198,7 @@ MRPROPER_FILES += .config .config.old include/asm .version .old_version \
include/linux/autoconf.h include/linux/version.h \
include/linux/utsrelease.h \
include/linux/bounds.h include/asm*/asm-offsets.h \
- Module.symvers Module.markers tags TAGS cscope*
+ Module.symvers tags TAGS cscope*

# clean - Delete most, but leave enough to build external modules
#
@@ -1217,7 +1217,7 @@ clean: archclean $(clean-dirs)
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' -o -name 'modules.order' \
- -o -name 'Module.markers' -o -name '.tmp_*.o.*' \
+ -o -name '.tmp_*.o.*' \
-o -name '*.gcno' \) -type f -print | xargs rm -f

# mrproper - Delete all generated files, including .config
@@ -1415,7 +1415,6 @@ $(clean-dirs):

clean: rm-dirs := $(MODVERDIR)
clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \
- $(KBUILD_EXTMOD)/Module.markers \
$(KBUILD_EXTMOD)/modules.order
clean: $(clean-dirs)
$(call cmd,rmdirs)
--
1.5.6


2009-11-16 05:53:17

by tip-bot for Wenji Huang

[permalink] [raw]
Subject: [PATCH] Kbuild: clear marker out of modpost

Remove the unnecessary functions and variables.

Signed-off-by: Wenji Huang <[email protected]>
---
scripts/mod/modpost.c | 164 -------------------------------------------------
scripts/mod/modpost.h | 3 -
2 files changed, 0 insertions(+), 167 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 801a16a..204e3f0 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -451,8 +451,6 @@ static int parse_elf(struct elf_info *info, const char *filename)
info->export_unused_gpl_sec = i;
else if (strcmp(secname, "__ksymtab_gpl_future") == 0)
info->export_gpl_future_sec = i;
- else if (strcmp(secname, "__markers_strings") == 0)
- info->markers_strings_sec = i;

if (sechdrs[i].sh_type != SHT_SYMTAB)
continue;
@@ -1509,62 +1507,6 @@ static void check_sec_ref(struct module *mod, const char *modname,
}
}

-static void get_markers(struct elf_info *info, struct module *mod)
-{
- const Elf_Shdr *sh = &info->sechdrs[info->markers_strings_sec];
- const char *strings = (const char *) info->hdr + sh->sh_offset;
- const Elf_Sym *sym, *first_sym, *last_sym;
- size_t n;
-
- if (!info->markers_strings_sec)
- return;
-
- /*
- * First count the strings. We look for all the symbols defined
- * in the __markers_strings section named __mstrtab_*. For
- * these local names, the compiler puts a random .NNN suffix on,
- * so the names don't correspond exactly.
- */
- first_sym = last_sym = NULL;
- n = 0;
- for (sym = info->symtab_start; sym < info->symtab_stop; sym++)
- if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT &&
- sym->st_shndx == info->markers_strings_sec &&
- !strncmp(info->strtab + sym->st_name,
- "__mstrtab_", sizeof "__mstrtab_" - 1)) {
- if (first_sym == NULL)
- first_sym = sym;
- last_sym = sym;
- ++n;
- }
-
- if (n == 0)
- return;
-
- /*
- * Now collect each name and format into a line for the output.
- * Lines look like:
- * marker_name vmlinux marker %s format %d
- * The format string after the second \t can use whitespace.
- */
- mod->markers = NOFAIL(malloc(sizeof mod->markers[0] * n));
- mod->nmarkers = n;
-
- n = 0;
- for (sym = first_sym; sym <= last_sym; sym++)
- if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT &&
- sym->st_shndx == info->markers_strings_sec &&
- !strncmp(info->strtab + sym->st_name,
- "__mstrtab_", sizeof "__mstrtab_" - 1)) {
- const char *name = strings + sym->st_value;
- const char *fmt = strchr(name, '\0') + 1;
- char *line = NULL;
- asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt);
- NOFAIL(line);
- mod->markers[n++] = line;
- }
-}
-
static void read_symbols(char *modname)
{
const char *symname;
@@ -1620,8 +1562,6 @@ static void read_symbols(char *modname)
get_src_version(modname, mod->srcversion,
sizeof(mod->srcversion)-1);

- get_markers(&info, mod);
-
parse_elf_finish(&info);

/* Our trick to get versioning for module struct etc. - it's
@@ -1976,96 +1916,6 @@ static void write_dump(const char *fname)
write_if_changed(&buf, fname);
}

-static void add_marker(struct module *mod, const char *name, const char *fmt)
-{
- char *line = NULL;
- asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt);
- NOFAIL(line);
-
- mod->markers = NOFAIL(realloc(mod->markers, ((mod->nmarkers + 1) *
- sizeof mod->markers[0])));
- mod->markers[mod->nmarkers++] = line;
-}
-
-static void read_markers(const char *fname)
-{
- unsigned long size, pos = 0;
- void *file = grab_file(fname, &size);
- char *line;
-
- if (!file) /* No old markers, silently ignore */
- return;
-
- while ((line = get_next_line(&pos, file, size))) {
- char *marker, *modname, *fmt;
- struct module *mod;
-
- marker = line;
- modname = strchr(marker, '\t');
- if (!modname)
- goto fail;
- *modname++ = '\0';
- fmt = strchr(modname, '\t');
- if (!fmt)
- goto fail;
- *fmt++ = '\0';
- if (*marker == '\0' || *modname == '\0')
- goto fail;
-
- mod = find_module(modname);
- if (!mod) {
- mod = new_module(modname);
- mod->skip = 1;
- }
- if (is_vmlinux(modname)) {
- have_vmlinux = 1;
- mod->skip = 0;
- }
-
- if (!mod->skip)
- add_marker(mod, marker, fmt);
- }
- release_file(file, size);
- return;
-fail:
- fatal("parse error in markers list file\n");
-}
-
-static int compare_strings(const void *a, const void *b)
-{
- return strcmp(*(const char **) a, *(const char **) b);
-}
-
-static void write_markers(const char *fname)
-{
- struct buffer buf = { };
- struct module *mod;
- size_t i;
-
- for (mod = modules; mod; mod = mod->next)
- if ((!external_module || !mod->skip) && mod->markers != NULL) {
- /*
- * Sort the strings so we can skip duplicates when
- * we write them out.
- */
- qsort(mod->markers, mod->nmarkers,
- sizeof mod->markers[0], &compare_strings);
- for (i = 0; i < mod->nmarkers; ++i) {
- char *line = mod->markers[i];
- buf_write(&buf, line, strlen(line));
- while (i + 1 < mod->nmarkers &&
- !strcmp(mod->markers[i],
- mod->markers[i + 1]))
- free(mod->markers[i++]);
- free(mod->markers[i]);
- }
- free(mod->markers);
- mod->markers = NULL;
- }
-
- write_if_changed(&buf, fname);
-}
-
struct ext_sym_list {
struct ext_sym_list *next;
const char *file;
@@ -2077,8 +1927,6 @@ int main(int argc, char **argv)
struct buffer buf = { };
char *kernel_read = NULL, *module_read = NULL;
char *dump_write = NULL;
- char *markers_read = NULL;
- char *markers_write = NULL;
int opt;
int err;
struct ext_sym_list *extsym_iter;
@@ -2122,12 +1970,6 @@ int main(int argc, char **argv)
case 'w':
warn_unresolved = 1;
break;
- case 'M':
- markers_write = optarg;
- break;
- case 'K':
- markers_read = optarg;
- break;
default:
exit(1);
}
@@ -2182,11 +2024,5 @@ int main(int argc, char **argv)
"'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n",
sec_mismatch_count);

- if (markers_read)
- read_markers(markers_read);
-
- if (markers_write)
- write_markers(markers_write);
-
return err;
}
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 09f58e3..be987a4 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -112,8 +112,6 @@ struct module {
int has_init;
int has_cleanup;
struct buffer dev_table_buf;
- char **markers;
- size_t nmarkers;
char srcversion[25];
};

@@ -128,7 +126,6 @@ struct elf_info {
Elf_Section export_gpl_sec;
Elf_Section export_unused_gpl_sec;
Elf_Section export_gpl_future_sec;
- Elf_Section markers_strings_sec;
const char *strtab;
char *modinfo;
unsigned int modinfo_len;
--
1.5.6

2009-11-16 06:26:26

by Cong Wang

[permalink] [raw]
Subject: Re: [PATCH] Kbuild: clean up marker

On Mon, Nov 16, 2009 at 1:49 PM, Wenji Huang <[email protected]> wrote:
> Drop Module.markers from cleaning list.
>
> Signed-off-by: Wenji Huang <[email protected]>

Acked-by: WANG Cong <[email protected]>

Cc: Sam Ravnborg <[email protected]>

> ---
>  Makefile |    5 ++---
>  1 files changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index 8278361..1c8c3e1 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1198,7 +1198,7 @@ MRPROPER_FILES += .config .config.old include/asm .version .old_version \
>                   include/linux/autoconf.h include/linux/version.h      \
>                   include/linux/utsrelease.h                            \
>                   include/linux/bounds.h include/asm*/asm-offsets.h     \
> -                 Module.symvers Module.markers tags TAGS cscope*
> +                 Module.symvers tags TAGS cscope*
>
>  # clean - Delete most, but leave enough to build external modules
>  #
> @@ -1217,7 +1217,7 @@ clean: archclean $(clean-dirs)
>                \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
>                -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
>                -o -name '*.symtypes' -o -name 'modules.order' \
> -               -o -name 'Module.markers' -o -name '.tmp_*.o.*' \
> +               -o -name '.tmp_*.o.*' \
>                -o -name '*.gcno' \) -type f -print | xargs rm -f
>
>  # mrproper - Delete all generated files, including .config
> @@ -1415,7 +1415,6 @@ $(clean-dirs):
>
>  clean: rm-dirs := $(MODVERDIR)
>  clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \
> -                   $(KBUILD_EXTMOD)/Module.markers \
>                    $(KBUILD_EXTMOD)/modules.order
>  clean: $(clean-dirs)
>        $(call cmd,rmdirs)
> --
> 1.5.6
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
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> Please read the FAQ at  http://www.tux.org/lkml/
>

2009-11-16 06:31:09

by Cong Wang

[permalink] [raw]
Subject: Re: [PATCH] Kbuild: clear marker out of modpost

On Mon, Nov 16, 2009 at 1:49 PM, Wenji Huang <[email protected]> wrote:> Remove the unnecessary functions and variables.>> Signed-off-by: Wenji Huang <[email protected]>
I am not sure about this removal, Ingo seems to have otheropinions, please check:
http://lkml.org/lkml/2009/9/18/92
Adding Ingo into Cc:.
Thanks.
> --->  scripts/mod/modpost.c |  164 ------------------------------------------------->  scripts/mod/modpost.h |    3 ->  2 files changed, 0 insertions(+), 167 deletions(-)>> diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c> index 801a16a..204e3f0 100644> --- a/scripts/mod/modpost.c> +++ b/scripts/mod/modpost.c> @@ -451,8 +451,6 @@ static int parse_elf(struct elf_info *info, const char *filename)>                        info->export_unused_gpl_sec = i;>                else if (strcmp(secname, "__ksymtab_gpl_future") == 0)>                        info->export_gpl_future_sec = i;> -               else if (strcmp(secname, "__markers_strings") == 0)> -                       info->markers_strings_sec = i;>>                if (sechdrs[i].sh_type != SHT_SYMTAB)>                        continue;> @@ -1509,62 +1507,6 @@ static void check_sec_ref(struct module *mod, const char *modname,>        }>  }>> -static void get_markers(struct elf_info *info, struct module *mod)> -{> -       const Elf_Shdr *sh = &info->sechdrs[info->markers_strings_sec];> -       const char *strings = (const char *) info->hdr + sh->sh_offset;> -       const Elf_Sym *sym, *first_sym, *last_sym;> -       size_t n;> -> -       if (!info->markers_strings_sec)> -               return;> -> -       /*> -        * First count the strings.  We look for all the symbols defined> -        * in the __markers_strings section named __mstrtab_*.  For> -        * these local names, the compiler puts a random .NNN suffix on,> -        * so the names don't correspond exactly.> -        */> -       first_sym = last_sym = NULL;> -       n = 0;> -       for (sym = info->symtab_start; sym < info->symtab_stop; sym++)> -               if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT &&> -                   sym->st_shndx == info->markers_strings_sec &&> -                   !strncmp(info->strtab + sym->st_name,> -                            "__mstrtab_", sizeof "__mstrtab_" - 1)) {> -                       if (first_sym == NULL)> -                               first_sym = sym;> -                       last_sym = sym;> -                       ++n;> -               }> -> -       if (n == 0)> -               return;> -> -       /*> -        * Now collect each name and format into a line for the output.> -        * Lines look like:> -        *      marker_name     vmlinux marker %s format %d> -        * The format string after the second \t can use whitespace.> -        */> -       mod->markers = NOFAIL(malloc(sizeof mod->markers[0] * n));> -       mod->nmarkers = n;> -> -       n = 0;> -       for (sym = first_sym; sym <= last_sym; sym++)> -               if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT &&> -                   sym->st_shndx == info->markers_strings_sec &&> -                   !strncmp(info->strtab + sym->st_name,> -                            "__mstrtab_", sizeof "__mstrtab_" - 1)) {> -                       const char *name = strings + sym->st_value;> -                       const char *fmt = strchr(name, '\0') + 1;> -                       char *line = NULL;> -                       asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt);> -                       NOFAIL(line);> -                       mod->markers[n++] = line;> -               }> -}> ->  static void read_symbols(char *modname)>  {>        const char *symname;> @@ -1620,8 +1562,6 @@ static void read_symbols(char *modname)>                get_src_version(modname, mod->srcversion,>                                sizeof(mod->srcversion)-1);>> -       get_markers(&info, mod);> ->        parse_elf_finish(&info);>>        /* Our trick to get versioning for module struct etc. - it's> @@ -1976,96 +1916,6 @@ static void write_dump(const char *fname)>        write_if_changed(&buf, fname);>  }>> -static void add_marker(struct module *mod, const char *name, const char *fmt)> -{> -       char *line = NULL;> -       asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt);> -       NOFAIL(line);> -> -       mod->markers = NOFAIL(realloc(mod->markers, ((mod->nmarkers + 1) *> -                                                    sizeof mod->markers[0])));> -       mod->markers[mod->nmarkers++] = line;> -}> -> -static void read_markers(const char *fname)> -{> -       unsigned long size, pos = 0;> -       void *file = grab_file(fname, &size);> -       char *line;> -> -       if (!file)              /* No old markers, silently ignore */> -               return;> -> -       while ((line = get_next_line(&pos, file, size))) {> -               char *marker, *modname, *fmt;> -               struct module *mod;> -> -               marker = line;> -               modname = strchr(marker, '\t');> -               if (!modname)> -                       goto fail;> -               *modname++ = '\0';> -               fmt = strchr(modname, '\t');> -               if (!fmt)> -                       goto fail;> -               *fmt++ = '\0';> -               if (*marker == '\0' || *modname == '\0')> -                       goto fail;> -> -               mod = find_module(modname);> -               if (!mod) {> -                       mod = new_module(modname);> -                       mod->skip = 1;> -               }> -               if (is_vmlinux(modname)) {> -                       have_vmlinux = 1;> -                       mod->skip = 0;> -               }> -> -               if (!mod->skip)> -                       add_marker(mod, marker, fmt);> -       }> -       release_file(file, size);> -       return;> -fail:> -       fatal("parse error in markers list file\n");> -}> -> -static int compare_strings(const void *a, const void *b)> -{> -       return strcmp(*(const char **) a, *(const char **) b);> -}> -> -static void write_markers(const char *fname)> -{> -       struct buffer buf = { };> -       struct module *mod;> -       size_t i;> -> -       for (mod = modules; mod; mod = mod->next)> -               if ((!external_module || !mod->skip) && mod->markers != NULL) {> -                       /*> -                        * Sort the strings so we can skip duplicates when> -                        * we write them out.> -                        */> -                       qsort(mod->markers, mod->nmarkers,> -                             sizeof mod->markers[0], &compare_strings);> -                       for (i = 0; i < mod->nmarkers; ++i) {> -                               char *line = mod->markers[i];> -                               buf_write(&buf, line, strlen(line));> -                               while (i + 1 < mod->nmarkers &&> -                                      !strcmp(mod->markers[i],> -                                              mod->markers[i + 1]))> -                                       free(mod->markers[i++]);> -                               free(mod->markers[i]);> -                       }> -                       free(mod->markers);> -                       mod->markers = NULL;> -               }> -> -       write_if_changed(&buf, fname);> -}> ->  struct ext_sym_list {>        struct ext_sym_list *next;>        const char *file;> @@ -2077,8 +1927,6 @@ int main(int argc, char **argv)>        struct buffer buf = { };>        char *kernel_read = NULL, *module_read = NULL;>        char *dump_write = NULL;> -       char *markers_read = NULL;> -       char *markers_write = NULL;>        int opt;>        int err;>        struct ext_sym_list *extsym_iter;> @@ -2122,12 +1970,6 @@ int main(int argc, char **argv)>                case 'w':>                        warn_unresolved = 1;>                        break;> -                       case 'M':> -                               markers_write = optarg;> -                               break;> -                       case 'K':> -                               markers_read = optarg;> -                               break;>                default:>                        exit(1);>                }> @@ -2182,11 +2024,5 @@ int main(int argc, char **argv)>                     "'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n",>                     sec_mismatch_count);>> -       if (markers_read)> -               read_markers(markers_read);> -> -       if (markers_write)> -               write_markers(markers_write);> ->        return err;>  }> diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h> index 09f58e3..be987a4 100644> --- a/scripts/mod/modpost.h> +++ b/scripts/mod/modpost.h> @@ -112,8 +112,6 @@ struct module {>        int has_init;>        int has_cleanup;>        struct buffer dev_table_buf;> -       char **markers;> -       size_t nmarkers;>        char         srcversion[25];>  };>> @@ -128,7 +126,6 @@ struct elf_info {>        Elf_Section  export_gpl_sec;>        Elf_Section  export_unused_gpl_sec;>        Elf_Section  export_gpl_future_sec;> -       Elf_Section  markers_strings_sec;>        const char   *strtab;>        char         *modinfo;>        unsigned int modinfo_len;> --> 1.5.6>> --> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in> the body of a message to [email protected]> More majordomo info at  http://vger.kernel.org/majordomo-info.html> Please read the FAQ at  http://www.tux.org/lkml/>????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?

2009-11-18 21:21:25

by Andrew Morton

[permalink] [raw]
Subject: Re: [PATCH] Kbuild: clean up marker

On Mon, 16 Nov 2009 13:49:54 +0800
Wenji Huang <[email protected]> wrote:

> Drop Module.markers from cleaning list.

The changelog failed to explain the reason for this change. Please
always include that vital information in changelogs.

I, for one, don't have a clue why you made this change.

2009-11-19 01:00:12

by tip-bot for Wenji Huang

[permalink] [raw]
Subject: Re: [PATCH] Kbuild: clean up marker

Hi,

> The changelog failed to explain the reason for this change. Please
> always include that vital information in changelogs.
>
> I, for one, don't have a clue why you made this change.
>
>

Thanks for your comment. Please see updated one

[PATCH v2] Kbuild: clean up marker

already cc'd to you and mailing list.

Regards,
Wenji