diff options
Diffstat (limited to 'scripts')
-rw-r--r-- | scripts/mod/modpost.c | 164 | ||||
-rw-r--r-- | 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 fb0f9b711af3..c16c0a0e2464 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c | |||
@@ -460,8 +460,6 @@ static int parse_elf(struct elf_info *info, const char *filename) | |||
460 | info->export_unused_gpl_sec = i; | 460 | info->export_unused_gpl_sec = i; |
461 | else if (strcmp(secname, "__ksymtab_gpl_future") == 0) | 461 | else if (strcmp(secname, "__ksymtab_gpl_future") == 0) |
462 | info->export_gpl_future_sec = i; | 462 | info->export_gpl_future_sec = i; |
463 | else if (strcmp(secname, "__markers_strings") == 0) | ||
464 | info->markers_strings_sec = i; | ||
465 | 463 | ||
466 | if (sechdrs[i].sh_type != SHT_SYMTAB) | 464 | if (sechdrs[i].sh_type != SHT_SYMTAB) |
467 | continue; | 465 | continue; |
@@ -1518,62 +1516,6 @@ static void check_sec_ref(struct module *mod, const char *modname, | |||
1518 | } | 1516 | } |
1519 | } | 1517 | } |
1520 | 1518 | ||
1521 | static void get_markers(struct elf_info *info, struct module *mod) | ||
1522 | { | ||
1523 | const Elf_Shdr *sh = &info->sechdrs[info->markers_strings_sec]; | ||
1524 | const char *strings = (const char *) info->hdr + sh->sh_offset; | ||
1525 | const Elf_Sym *sym, *first_sym, *last_sym; | ||
1526 | size_t n; | ||
1527 | |||
1528 | if (!info->markers_strings_sec) | ||
1529 | return; | ||
1530 | |||
1531 | /* | ||
1532 | * First count the strings. We look for all the symbols defined | ||
1533 | * in the __markers_strings section named __mstrtab_*. For | ||
1534 | * these local names, the compiler puts a random .NNN suffix on, | ||
1535 | * so the names don't correspond exactly. | ||
1536 | */ | ||
1537 | first_sym = last_sym = NULL; | ||
1538 | n = 0; | ||
1539 | for (sym = info->symtab_start; sym < info->symtab_stop; sym++) | ||
1540 | if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT && | ||
1541 | sym->st_shndx == info->markers_strings_sec && | ||
1542 | !strncmp(info->strtab + sym->st_name, | ||
1543 | "__mstrtab_", sizeof "__mstrtab_" - 1)) { | ||
1544 | if (first_sym == NULL) | ||
1545 | first_sym = sym; | ||
1546 | last_sym = sym; | ||
1547 | ++n; | ||
1548 | } | ||
1549 | |||
1550 | if (n == 0) | ||
1551 | return; | ||
1552 | |||
1553 | /* | ||
1554 | * Now collect each name and format into a line for the output. | ||
1555 | * Lines look like: | ||
1556 | * marker_name vmlinux marker %s format %d | ||
1557 | * The format string after the second \t can use whitespace. | ||
1558 | */ | ||
1559 | mod->markers = NOFAIL(malloc(sizeof mod->markers[0] * n)); | ||
1560 | mod->nmarkers = n; | ||
1561 | |||
1562 | n = 0; | ||
1563 | for (sym = first_sym; sym <= last_sym; sym++) | ||
1564 | if (ELF_ST_TYPE(sym->st_info) == STT_OBJECT && | ||
1565 | sym->st_shndx == info->markers_strings_sec && | ||
1566 | !strncmp(info->strtab + sym->st_name, | ||
1567 | "__mstrtab_", sizeof "__mstrtab_" - 1)) { | ||
1568 | const char *name = strings + sym->st_value; | ||
1569 | const char *fmt = strchr(name, '\0') + 1; | ||
1570 | char *line = NULL; | ||
1571 | asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt); | ||
1572 | NOFAIL(line); | ||
1573 | mod->markers[n++] = line; | ||
1574 | } | ||
1575 | } | ||
1576 | |||
1577 | static void read_symbols(char *modname) | 1519 | static void read_symbols(char *modname) |
1578 | { | 1520 | { |
1579 | const char *symname; | 1521 | const char *symname; |
@@ -1629,8 +1571,6 @@ static void read_symbols(char *modname) | |||
1629 | get_src_version(modname, mod->srcversion, | 1571 | get_src_version(modname, mod->srcversion, |
1630 | sizeof(mod->srcversion)-1); | 1572 | sizeof(mod->srcversion)-1); |
1631 | 1573 | ||
1632 | get_markers(&info, mod); | ||
1633 | |||
1634 | parse_elf_finish(&info); | 1574 | parse_elf_finish(&info); |
1635 | 1575 | ||
1636 | /* Our trick to get versioning for module struct etc. - it's | 1576 | /* Our trick to get versioning for module struct etc. - it's |
@@ -1985,96 +1925,6 @@ static void write_dump(const char *fname) | |||
1985 | write_if_changed(&buf, fname); | 1925 | write_if_changed(&buf, fname); |
1986 | } | 1926 | } |
1987 | 1927 | ||
1988 | static void add_marker(struct module *mod, const char *name, const char *fmt) | ||
1989 | { | ||
1990 | char *line = NULL; | ||
1991 | asprintf(&line, "%s\t%s\t%s\n", name, mod->name, fmt); | ||
1992 | NOFAIL(line); | ||
1993 | |||
1994 | mod->markers = NOFAIL(realloc(mod->markers, ((mod->nmarkers + 1) * | ||
1995 | sizeof mod->markers[0]))); | ||
1996 | mod->markers[mod->nmarkers++] = line; | ||
1997 | } | ||
1998 | |||
1999 | static void read_markers(const char *fname) | ||
2000 | { | ||
2001 | unsigned long size, pos = 0; | ||
2002 | void *file = grab_file(fname, &size); | ||
2003 | char *line; | ||
2004 | |||
2005 | if (!file) /* No old markers, silently ignore */ | ||
2006 | return; | ||
2007 | |||
2008 | while ((line = get_next_line(&pos, file, size))) { | ||
2009 | char *marker, *modname, *fmt; | ||
2010 | struct module *mod; | ||
2011 | |||
2012 | marker = line; | ||
2013 | modname = strchr(marker, '\t'); | ||
2014 | if (!modname) | ||
2015 | goto fail; | ||
2016 | *modname++ = '\0'; | ||
2017 | fmt = strchr(modname, '\t'); | ||
2018 | if (!fmt) | ||
2019 | goto fail; | ||
2020 | *fmt++ = '\0'; | ||
2021 | if (*marker == '\0' || *modname == '\0') | ||
2022 | goto fail; | ||
2023 | |||
2024 | mod = find_module(modname); | ||
2025 | if (!mod) { | ||
2026 | mod = new_module(modname); | ||
2027 | mod->skip = 1; | ||
2028 | } | ||
2029 | if (is_vmlinux(modname)) { | ||
2030 | have_vmlinux = 1; | ||
2031 | mod->skip = 0; | ||
2032 | } | ||
2033 | |||
2034 | if (!mod->skip) | ||
2035 | add_marker(mod, marker, fmt); | ||
2036 | } | ||
2037 | release_file(file, size); | ||
2038 | return; | ||
2039 | fail: | ||
2040 | fatal("parse error in markers list file\n"); | ||
2041 | } | ||
2042 | |||
2043 | static int compare_strings(const void *a, const void *b) | ||
2044 | { | ||
2045 | return strcmp(*(const char **) a, *(const char **) b); | ||
2046 | } | ||
2047 | |||
2048 | static void write_markers(const char *fname) | ||
2049 | { | ||
2050 | struct buffer buf = { }; | ||
2051 | struct module *mod; | ||
2052 | size_t i; | ||
2053 | |||
2054 | for (mod = modules; mod; mod = mod->next) | ||
2055 | if ((!external_module || !mod->skip) && mod->markers != NULL) { | ||
2056 | /* | ||
2057 | * Sort the strings so we can skip duplicates when | ||
2058 | * we write them out. | ||
2059 | */ | ||
2060 | qsort(mod->markers, mod->nmarkers, | ||
2061 | sizeof mod->markers[0], &compare_strings); | ||
2062 | for (i = 0; i < mod->nmarkers; ++i) { | ||
2063 | char *line = mod->markers[i]; | ||
2064 | buf_write(&buf, line, strlen(line)); | ||
2065 | while (i + 1 < mod->nmarkers && | ||
2066 | !strcmp(mod->markers[i], | ||
2067 | mod->markers[i + 1])) | ||
2068 | free(mod->markers[i++]); | ||
2069 | free(mod->markers[i]); | ||
2070 | } | ||
2071 | free(mod->markers); | ||
2072 | mod->markers = NULL; | ||
2073 | } | ||
2074 | |||
2075 | write_if_changed(&buf, fname); | ||
2076 | } | ||
2077 | |||
2078 | struct ext_sym_list { | 1928 | struct ext_sym_list { |
2079 | struct ext_sym_list *next; | 1929 | struct ext_sym_list *next; |
2080 | const char *file; | 1930 | const char *file; |
@@ -2086,8 +1936,6 @@ int main(int argc, char **argv) | |||
2086 | struct buffer buf = { }; | 1936 | struct buffer buf = { }; |
2087 | char *kernel_read = NULL, *module_read = NULL; | 1937 | char *kernel_read = NULL, *module_read = NULL; |
2088 | char *dump_write = NULL; | 1938 | char *dump_write = NULL; |
2089 | char *markers_read = NULL; | ||
2090 | char *markers_write = NULL; | ||
2091 | int opt; | 1939 | int opt; |
2092 | int err; | 1940 | int err; |
2093 | struct ext_sym_list *extsym_iter; | 1941 | struct ext_sym_list *extsym_iter; |
@@ -2131,12 +1979,6 @@ int main(int argc, char **argv) | |||
2131 | case 'w': | 1979 | case 'w': |
2132 | warn_unresolved = 1; | 1980 | warn_unresolved = 1; |
2133 | break; | 1981 | break; |
2134 | case 'M': | ||
2135 | markers_write = optarg; | ||
2136 | break; | ||
2137 | case 'K': | ||
2138 | markers_read = optarg; | ||
2139 | break; | ||
2140 | default: | 1982 | default: |
2141 | exit(1); | 1983 | exit(1); |
2142 | } | 1984 | } |
@@ -2191,11 +2033,5 @@ int main(int argc, char **argv) | |||
2191 | "'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n", | 2033 | "'make CONFIG_DEBUG_SECTION_MISMATCH=y'\n", |
2192 | sec_mismatch_count); | 2034 | sec_mismatch_count); |
2193 | 2035 | ||
2194 | if (markers_read) | ||
2195 | read_markers(markers_read); | ||
2196 | |||
2197 | if (markers_write) | ||
2198 | write_markers(markers_write); | ||
2199 | |||
2200 | return err; | 2036 | return err; |
2201 | } | 2037 | } |
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h index 09f58e33d227..be987a44f250 100644 --- a/scripts/mod/modpost.h +++ b/scripts/mod/modpost.h | |||
@@ -112,8 +112,6 @@ struct module { | |||
112 | int has_init; | 112 | int has_init; |
113 | int has_cleanup; | 113 | int has_cleanup; |
114 | struct buffer dev_table_buf; | 114 | struct buffer dev_table_buf; |
115 | char **markers; | ||
116 | size_t nmarkers; | ||
117 | char srcversion[25]; | 115 | char srcversion[25]; |
118 | }; | 116 | }; |
119 | 117 | ||
@@ -128,7 +126,6 @@ struct elf_info { | |||
128 | Elf_Section export_gpl_sec; | 126 | Elf_Section export_gpl_sec; |
129 | Elf_Section export_unused_gpl_sec; | 127 | Elf_Section export_unused_gpl_sec; |
130 | Elf_Section export_gpl_future_sec; | 128 | Elf_Section export_gpl_future_sec; |
131 | Elf_Section markers_strings_sec; | ||
132 | const char *strtab; | 129 | const char *strtab; |
133 | char *modinfo; | 130 | char *modinfo; |
134 | unsigned int modinfo_len; | 131 | unsigned int modinfo_len; |