diff options
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.build | 12 | ||||
| -rw-r--r-- | scripts/genksyms/genksyms.c | 77 | ||||
| -rw-r--r-- | scripts/genksyms/genksyms.h | 1 |
3 files changed, 63 insertions, 27 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index e8e7d27cfc9a..3cb445cc7432 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -140,6 +140,15 @@ cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $< %.i: %.c FORCE $(call if_changed_dep,cc_i_c) +quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@ +cmd_cc_symtypes_c = \ + $(CPP) -D__GENKSYMS__ $(c_flags) $< \ + | $(GENKSYMS) -T $@ >/dev/null; \ + test -s $@ || rm -f $@ + +%.symtypes : %.c FORCE + $(call if_changed_dep,cc_symtypes_c) + # C (.c) files # The C file is compiled and updated dependency information is generated. # (See cmd_cc_o_c + relevant part of rule_cc_o_c) @@ -166,7 +175,8 @@ cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $< cmd_modversions = \ if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \ $(CPP) -D__GENKSYMS__ $(c_flags) $< \ - | $(GENKSYMS) -a $(ARCH) \ + | $(GENKSYMS) $(if $(KBUILD_SYMTYPES), \ + -T $(@D)/$(@F:.o=.symtypes)) -a $(ARCH) \ > $(@D)/.tmp_$(@F:.o=.ver); \ \ $(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \ diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c index 5b0344e20d61..b0381823e404 100644 --- a/scripts/genksyms/genksyms.c +++ b/scripts/genksyms/genksyms.c @@ -42,7 +42,7 @@ static FILE *debugfile; int cur_line = 1; char *cur_filename; -static int flag_debug, flag_dump_defs, flag_warnings; +static int flag_debug, flag_dump_defs, flag_dump_types, flag_warnings; static const char *arch = ""; static const char *mod_prefix = ""; @@ -50,6 +50,7 @@ static int errors; static int nsyms; static struct symbol *expansion_trail; +static struct symbol *visited_symbols; static const char *const symbol_type_name[] = { "normal", "typedef", "enum", "struct", "union" @@ -176,6 +177,7 @@ struct symbol *add_symbol(const char *name, enum symbol_type type, sym->type = type; sym->defn = defn; sym->expansion_trail = NULL; + sym->visited = NULL; sym->is_extern = is_extern; sym->hash_next = symtab[h]; @@ -236,26 +238,11 @@ static int equal_list(struct string_list *a, struct string_list *b) static void print_node(FILE * f, struct string_list *list) { - switch (list->tag) { - case SYM_STRUCT: - putc('s', f); - goto printit; - case SYM_UNION: - putc('u', f); - goto printit; - case SYM_ENUM: - putc('e', f); - goto printit; - case SYM_TYPEDEF: - putc('t', f); - goto printit; - - printit: + if (list->tag != SYM_NORMAL) { + putc(symbol_type_name[list->tag][0], f); putc('#', f); - case SYM_NORMAL: - fputs(list->string, f); - break; } + fputs(list->string, f); } static void print_list(FILE * f, struct string_list *list) @@ -287,9 +274,9 @@ static void print_list(FILE * f, struct string_list *list) } } -static unsigned long expand_and_crc_list(struct string_list *list, - unsigned long crc) +static unsigned long expand_and_crc_sym(struct symbol *sym, unsigned long crc) { + struct string_list *list = sym->defn; struct string_list **e, **b; struct string_list *tmp, **tmp2; int elem = 1; @@ -332,7 +319,7 @@ static unsigned long expand_and_crc_list(struct string_list *list, } else { subsym->expansion_trail = expansion_trail; expansion_trail = subsym; - crc = expand_and_crc_list(subsym->defn, crc); + crc = expand_and_crc_sym(subsym, crc); } break; @@ -382,12 +369,22 @@ static unsigned long expand_and_crc_list(struct string_list *list, } else { subsym->expansion_trail = expansion_trail; expansion_trail = subsym; - crc = expand_and_crc_list(subsym->defn, crc); + crc = expand_and_crc_sym(subsym, crc); } break; } } + { + static struct symbol **end = &visited_symbols; + + if (!sym->visited) { + *end = sym; + end = &sym->visited; + sym->visited = (struct symbol *)-1L; + } + } + return crc; } @@ -406,7 +403,7 @@ void export_symbol(const char *name) expansion_trail = (struct symbol *)-1L; - crc = expand_and_crc_list(sym->defn, 0xffffffff) ^ 0xffffffff; + crc = expand_and_crc_sym(sym, 0xffffffff) ^ 0xffffffff; sym = expansion_trail; while (sym != (struct symbol *)-1L) { @@ -464,6 +461,7 @@ static void genksyms_usage(void) int main(int argc, char **argv) { + FILE *dumpfile = NULL; int o; #ifdef __GNU_LIBRARY__ @@ -473,15 +471,16 @@ int main(int argc, char **argv) {"warnings", 0, 0, 'w'}, {"quiet", 0, 0, 'q'}, {"dump", 0, 0, 'D'}, + {"dump-types", 1, 0, 'T'}, {"version", 0, 0, 'V'}, {"help", 0, 0, 'h'}, {0, 0, 0, 0} }; - while ((o = getopt_long(argc, argv, "a:dwqVDk:p:", + while ((o = getopt_long(argc, argv, "a:dwqVDT:k:p:", &long_opts[0], NULL)) != EOF) #else /* __GNU_LIBRARY__ */ - while ((o = getopt(argc, argv, "a:dwqVDk:p:")) != EOF) + while ((o = getopt(argc, argv, "a:dwqVDT:k:p:")) != EOF) #endif /* __GNU_LIBRARY__ */ switch (o) { case 'a': @@ -502,6 +501,14 @@ int main(int argc, char **argv) case 'D': flag_dump_defs = 1; break; + case 'T': + flag_dump_types = 1; + dumpfile = fopen(optarg, "w"); + if (!dumpfile) { + perror(optarg); + return 1; + } + break; case 'h': genksyms_usage(); return 0; @@ -524,6 +531,24 @@ int main(int argc, char **argv) yyparse(); + if (flag_dump_types && visited_symbols) { + while (visited_symbols != (struct symbol *)-1L) { + struct symbol *sym = visited_symbols; + + if (sym->type != SYM_NORMAL) { + putc(symbol_type_name[sym->type][0], dumpfile); + putc('#', dumpfile); + } + fputs(sym->name, dumpfile); + putc(' ', dumpfile); + print_list(dumpfile, sym->defn); + putc('\n', dumpfile); + + visited_symbols = sym->visited; + sym->visited = NULL; + } + } + if (flag_debug) { fprintf(debugfile, "Hash table occupancy %d/%d = %g\n", nsyms, HASH_BUCKETS, diff --git a/scripts/genksyms/genksyms.h b/scripts/genksyms/genksyms.h index ab6f34f38735..2668287aa498 100644 --- a/scripts/genksyms/genksyms.h +++ b/scripts/genksyms/genksyms.h @@ -41,6 +41,7 @@ struct symbol { enum symbol_type type; struct string_list *defn; struct symbol *expansion_trail; + struct symbol *visited; int is_extern; }; |