diff options
Diffstat (limited to 'scripts/basic')
| -rw-r--r-- | scripts/basic/Makefile | 2 | ||||
| -rw-r--r-- | scripts/basic/docproc.c | 166 | ||||
| -rw-r--r-- | scripts/basic/fixdep.c | 145 | ||||
| -rw-r--r-- | scripts/basic/hash.c | 64 |
4 files changed, 229 insertions, 148 deletions
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile index 09559951df12..4c324a1f1e0e 100644 --- a/scripts/basic/Makefile +++ b/scripts/basic/Makefile @@ -9,7 +9,7 @@ # fixdep: Used to generate dependency information during build process # docproc: Used in Documentation/DocBook -hostprogs-y := fixdep docproc hash +hostprogs-y := fixdep docproc always := $(hostprogs-y) # fixdep is needed to compile other host programs diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c index 99ca7a698687..98dec87974d0 100644 --- a/scripts/basic/docproc.c +++ b/scripts/basic/docproc.c @@ -34,12 +34,14 @@ * */ +#define _GNU_SOURCE #include <stdio.h> #include <stdlib.h> #include <string.h> #include <ctype.h> #include <unistd.h> #include <limits.h> +#include <errno.h> #include <sys/types.h> #include <sys/wait.h> @@ -54,6 +56,7 @@ typedef void FILEONLY(char * file); FILEONLY *internalfunctions; FILEONLY *externalfunctions; FILEONLY *symbolsonly; +FILEONLY *findall; typedef void FILELINE(char * file, char * line); FILELINE * singlefunctions; @@ -65,13 +68,31 @@ FILELINE * docsection; #define KERNELDOCPATH "scripts/" #define KERNELDOC "kernel-doc" #define DOCBOOK "-docbook" +#define LIST "-list" #define FUNCTION "-function" #define NOFUNCTION "-nofunction" #define NODOCSECTIONS "-no-doc-sections" static char *srctree, *kernsrctree; -void usage (void) +static char **all_list = NULL; +static int all_list_len = 0; + +static void consume_symbol(const char *sym) +{ + int i; + + for (i = 0; i < all_list_len; i++) { + if (!all_list[i]) + continue; + if (strcmp(sym, all_list[i])) + continue; + all_list[i] = NULL; + break; + } +} + +static void usage (void) { fprintf(stderr, "Usage: docproc {doc|depend} file\n"); fprintf(stderr, "Input is read from file.tmpl. Output is sent to stdout\n"); @@ -84,7 +105,7 @@ void usage (void) /* * Execute kernel-doc with parameters given in svec */ -void exec_kernel_doc(char **svec) +static void exec_kernel_doc(char **svec) { pid_t pid; int ret; @@ -129,7 +150,7 @@ struct symfile struct symfile symfilelist[MAXFILES]; int symfilecnt = 0; -void add_new_symbol(struct symfile *sym, char * symname) +static void add_new_symbol(struct symfile *sym, char * symname) { sym->symbollist = realloc(sym->symbollist, (sym->symbolcnt + 1) * sizeof(char *)); @@ -137,14 +158,14 @@ void add_new_symbol(struct symfile *sym, char * symname) } /* Add a filename to the list */ -struct symfile * add_new_file(char * filename) +static struct symfile * add_new_file(char * filename) { symfilelist[symfilecnt++].filename = strdup(filename); return &symfilelist[symfilecnt - 1]; } /* Check if file already are present in the list */ -struct symfile * filename_exist(char * filename) +static struct symfile * filename_exist(char * filename) { int i; for (i=0; i < symfilecnt; i++) @@ -157,20 +178,20 @@ struct symfile * filename_exist(char * filename) * List all files referenced within the template file. * Files are separated by tabs. */ -void adddep(char * file) { printf("\t%s", file); } -void adddep2(char * file, char * line) { line = line; adddep(file); } -void noaction(char * line) { line = line; } -void noaction2(char * file, char * line) { file = file; line = line; } +static void adddep(char * file) { printf("\t%s", file); } +static void adddep2(char * file, char * line) { line = line; adddep(file); } +static void noaction(char * line) { line = line; } +static void noaction2(char * file, char * line) { file = file; line = line; } /* Echo the line without further action */ -void printline(char * line) { printf("%s", line); } +static void printline(char * line) { printf("%s", line); } /* * Find all symbols in filename that are exported with EXPORT_SYMBOL & * EXPORT_SYMBOL_GPL (& EXPORT_SYMBOL_GPL_FUTURE implicitly). * All symbols located are stored in symfilelist. */ -void find_export_symbols(char * filename) +static void find_export_symbols(char * filename) { FILE * fp; struct symfile *sym; @@ -227,7 +248,7 @@ void find_export_symbols(char * filename) * intfunc uses -nofunction * extfunc uses -function */ -void docfunctions(char * filename, char * type) +static void docfunctions(char * filename, char * type) { int i,j; int symcnt = 0; @@ -248,6 +269,7 @@ void docfunctions(char * filename, char * type) struct symfile * sym = &symfilelist[i]; for (j=0; j < sym->symbolcnt; j++) { vec[idx++] = type; + consume_symbol(sym->symbollist[j].name); vec[idx++] = sym->symbollist[j].name; } } @@ -258,15 +280,15 @@ void docfunctions(char * filename, char * type) fflush(stdout); free(vec); } -void intfunc(char * filename) { docfunctions(filename, NOFUNCTION); } -void extfunc(char * filename) { docfunctions(filename, FUNCTION); } +static void intfunc(char * filename) { docfunctions(filename, NOFUNCTION); } +static void extfunc(char * filename) { docfunctions(filename, FUNCTION); } /* * Document specific function(s) in a file. * Call kernel-doc with the following parameters: * kernel-doc -docbook -function function1 [-function function2] */ -void singfunc(char * filename, char * line) +static void singfunc(char * filename, char * line) { char *vec[200]; /* Enough for specific functions */ int i, idx = 0; @@ -287,6 +309,11 @@ void singfunc(char * filename, char * line) vec[idx++] = &line[i]; } } + for (i = 0; i < idx; i++) { + if (strcmp(vec[i], FUNCTION)) + continue; + consume_symbol(vec[i + 1]); + } vec[idx++] = filename; vec[idx] = NULL; exec_kernel_doc(vec); @@ -297,7 +324,7 @@ void singfunc(char * filename, char * line) * Call kernel-doc with the following parameters: * kernel-doc -docbook -function "doc section" filename */ -void docsect(char *filename, char *line) +static void docsect(char *filename, char *line) { char *vec[6]; /* kerneldoc -docbook -function "section" file NULL */ char *s; @@ -306,6 +333,13 @@ void docsect(char *filename, char *line) if (*s == '\n') *s = '\0'; + if (asprintf(&s, "DOC: %s", line) < 0) { + perror("asprintf"); + exit(1); + } + consume_symbol(s); + free(s); + vec[0] = KERNELDOC; vec[1] = DOCBOOK; vec[2] = FUNCTION; @@ -315,6 +349,84 @@ void docsect(char *filename, char *line) exec_kernel_doc(vec); } +static void find_all_symbols(char *filename) +{ + char *vec[4]; /* kerneldoc -list file NULL */ + pid_t pid; + int ret, i, count, start; + char real_filename[PATH_MAX + 1]; + int pipefd[2]; + char *data, *str; + size_t data_len = 0; + + vec[0] = KERNELDOC; + vec[1] = LIST; + vec[2] = filename; + vec[3] = NULL; + + if (pipe(pipefd)) { + perror("pipe"); + exit(1); + } + + switch (pid=fork()) { + case -1: + perror("fork"); + exit(1); + case 0: + close(pipefd[0]); + dup2(pipefd[1], 1); + memset(real_filename, 0, sizeof(real_filename)); + strncat(real_filename, kernsrctree, PATH_MAX); + strncat(real_filename, "/" KERNELDOCPATH KERNELDOC, + PATH_MAX - strlen(real_filename)); + execvp(real_filename, vec); + fprintf(stderr, "exec "); + perror(real_filename); + exit(1); + default: + close(pipefd[1]); + data = malloc(4096); + do { + while ((ret = read(pipefd[0], + data + data_len, + 4096)) > 0) { + data_len += ret; + data = realloc(data, data_len + 4096); + } + } while (ret == -EAGAIN); + if (ret != 0) { + perror("read"); + exit(1); + } + waitpid(pid, &ret ,0); + } + if (WIFEXITED(ret)) + exitstatus |= WEXITSTATUS(ret); + else + exitstatus = 0xff; + + count = 0; + /* poor man's strtok, but with counting */ + for (i = 0; i < data_len; i++) { + if (data[i] == '\n') { + count++; + data[i] = '\0'; + } + } + start = all_list_len; + all_list_len += count; + all_list = realloc(all_list, sizeof(char *) * all_list_len); + str = data; + for (i = 0; i < data_len && start != all_list_len; i++) { + if (data[i] == '\0') { + all_list[start] = str; + str = data + i + 1; + start++; + } + } +} + /* * Parse file, calling action specific functions for: * 1) Lines containing !E @@ -322,9 +434,10 @@ void docsect(char *filename, char *line) * 3) Lines containing !D * 4) Lines containing !F * 5) Lines containing !P - * 6) Default lines - lines not matching the above + * 6) Lines containing !C + * 7) Default lines - lines not matching the above */ -void parse_file(FILE *infile) +static void parse_file(FILE *infile) { char line[MAXLINESZ]; char * s; @@ -365,6 +478,12 @@ void parse_file(FILE *infile) s++; docsection(line + 2, s); break; + case 'C': + while (*s && !isspace(*s)) s++; + *s = '\0'; + if (findall) + findall(line+2); + break; default: defaultline(line); } @@ -380,6 +499,7 @@ void parse_file(FILE *infile) int main(int argc, char *argv[]) { FILE * infile; + int i; srctree = getenv("SRCTREE"); if (!srctree) @@ -415,6 +535,7 @@ int main(int argc, char *argv[]) symbolsonly = find_export_symbols; singlefunctions = noaction2; docsection = noaction2; + findall = find_all_symbols; parse_file(infile); /* Rewind to start from beginning of file again */ @@ -425,8 +546,16 @@ int main(int argc, char *argv[]) symbolsonly = printline; singlefunctions = singfunc; docsection = docsect; + findall = NULL; parse_file(infile); + + for (i = 0; i < all_list_len; i++) { + if (!all_list[i]) + continue; + fprintf(stderr, "Warning: didn't use docs for %s\n", + all_list[i]); + } } else if (strcmp("depend", argv[1]) == 0) { @@ -439,6 +568,7 @@ int main(int argc, char *argv[]) symbolsonly = adddep; singlefunctions = adddep2; docsection = adddep2; + findall = adddep; parse_file(infile); printf("\n"); } diff --git a/scripts/basic/fixdep.c b/scripts/basic/fixdep.c index 72c15205bb2b..c9a16abacab4 100644 --- a/scripts/basic/fixdep.c +++ b/scripts/basic/fixdep.c @@ -16,16 +16,15 @@ * tells make when to remake a file. * * To use this list as-is however has the drawback that virtually - * every file in the kernel includes <linux/config.h> which then again - * includes <linux/autoconf.h> + * every file in the kernel includes autoconf.h. * - * If the user re-runs make *config, linux/autoconf.h will be + * If the user re-runs make *config, autoconf.h will be * regenerated. make notices that and will rebuild every file which * includes autoconf.h, i.e. basically all files. This is extremely * annoying if the user just changed CONFIG_HIS_DRIVER from n to m. * * So we play the same trick that "mkdep" played before. We replace - * the dependency on linux/autoconf.h by a dependency on every config + * the dependency on autoconf.h by a dependency on every config * option which is mentioned in any of the listed prequisites. * * kconfig populates a tree in include/config/ with an empty file @@ -74,7 +73,7 @@ * cmd_<target> = <cmdline> * * and then basically copies the .<target>.d file to stdout, in the - * process filtering out the dependency on linux/autoconf.h and adding + * process filtering out the dependency on autoconf.h and adding * dependencies on include/config/my/option.h for every * CONFIG_MY_OPTION encountered in any of the prequisites. * @@ -125,8 +124,7 @@ char *target; char *depfile; char *cmdline; -void usage(void) - +static void usage(void) { fprintf(stderr, "Usage: fixdep <depfile> <target> <cmdline>\n"); exit(1); @@ -135,43 +133,41 @@ void usage(void) /* * Print out the commandline prefixed with cmd_<target filename> := */ -void print_cmdline(void) +static void print_cmdline(void) { printf("cmd_%s := %s\n\n", target, cmdline); } -char * str_config = NULL; -int size_config = 0; -int len_config = 0; +struct item { + struct item *next; + unsigned int len; + unsigned int hash; + char name[0]; +}; -/* - * Grow the configuration string to a desired length. - * Usually the first growth is plenty. - */ -void grow_config(int len) -{ - while (len_config + len > size_config) { - if (size_config == 0) - size_config = 2048; - str_config = realloc(str_config, size_config *= 2); - if (str_config == NULL) - { perror("fixdep:malloc"); exit(1); } - } -} +#define HASHSZ 256 +static struct item *hashtab[HASHSZ]; +static unsigned int strhash(const char *str, unsigned int sz) +{ + /* fnv32 hash */ + unsigned int i, hash = 2166136261U; + for (i = 0; i < sz; i++) + hash = (hash ^ str[i]) * 0x01000193; + return hash; +} /* * Lookup a value in the configuration string. */ -int is_defined_config(const char * name, int len) +static int is_defined_config(const char *name, int len, unsigned int hash) { - const char * pconfig; - const char * plast = str_config + len_config - len; - for ( pconfig = str_config + 1; pconfig < plast; pconfig++ ) { - if (pconfig[ -1] == '\n' - && pconfig[len] == '\n' - && !memcmp(pconfig, name, len)) + struct item *aux; + + for (aux = hashtab[hash % HASHSZ]; aux; aux = aux->next) { + if (aux->hash == hash && aux->len == len && + memcmp(aux->name, name, len) == 0) return 1; } return 0; @@ -180,54 +176,69 @@ int is_defined_config(const char * name, int len) /* * Add a new value to the configuration string. */ -void define_config(const char * name, int len) +static void define_config(const char *name, int len, unsigned int hash) { - grow_config(len + 1); + struct item *aux = malloc(sizeof(*aux) + len); - memcpy(str_config+len_config, name, len); - len_config += len; - str_config[len_config++] = '\n'; + if (!aux) { + perror("fixdep:malloc"); + exit(1); + } + memcpy(aux->name, name, len); + aux->len = len; + aux->hash = hash; + aux->next = hashtab[hash % HASHSZ]; + hashtab[hash % HASHSZ] = aux; } /* * Clear the set of configuration strings. */ -void clear_config(void) +static void clear_config(void) { - len_config = 0; - define_config("", 0); + struct item *aux, *next; + unsigned int i; + + for (i = 0; i < HASHSZ; i++) { + for (aux = hashtab[i]; aux; aux = next) { + next = aux->next; + free(aux); + } + hashtab[i] = NULL; + } } /* * Record the use of a CONFIG_* word. */ -void use_config(char *m, int slen) +static void use_config(const char *m, int slen) { - char s[PATH_MAX]; - char *p; + unsigned int hash = strhash(m, slen); + int c, i; - if (is_defined_config(m, slen)) + if (is_defined_config(m, slen, hash)) return; - define_config(m, slen); + define_config(m, slen, hash); - memcpy(s, m, slen); s[slen] = 0; - - for (p = s; p < s + slen; p++) { - if (*p == '_') - *p = '/'; + printf(" $(wildcard include/config/"); + for (i = 0; i < slen; i++) { + c = m[i]; + if (c == '_') + c = '/'; else - *p = tolower((int)*p); + c = tolower(c); + putchar(c); } - printf(" $(wildcard include/config/%s.h) \\\n", s); + printf(".h) \\\n"); } -void parse_config_file(char *map, size_t len) +static void parse_config_file(const char *map, size_t len) { - int *end = (int *) (map + len); + const int *end = (const int *) (map + len); /* start at +1, so that p can never be < map */ - int *m = (int *) map + 1; - char *p, *q; + const int *m = (const int *) map + 1; + const char *p, *q; for (; m < end; m++) { if (*m == INT_CONF) { p = (char *) m ; goto conf; } @@ -256,7 +267,7 @@ void parse_config_file(char *map, size_t len) } /* test is s ends in sub */ -int strrcmp(char *s, char *sub) +static int strrcmp(char *s, char *sub) { int slen = strlen(s); int sublen = strlen(sub); @@ -267,7 +278,7 @@ int strrcmp(char *s, char *sub) return memcmp(s + slen - sublen, sub, sublen); } -void do_config_file(char *filename) +static void do_config_file(const char *filename) { struct stat st; int fd; @@ -275,7 +286,7 @@ void do_config_file(char *filename) fd = open(filename, O_RDONLY); if (fd < 0) { - fprintf(stderr, "fixdep: "); + fprintf(stderr, "fixdep: error opening config file: "); perror(filename); exit(2); } @@ -298,7 +309,7 @@ void do_config_file(char *filename) close(fd); } -void parse_dep_file(void *map, size_t len) +static void parse_dep_file(void *map, size_t len) { char *m = map; char *end = m + len; @@ -326,7 +337,7 @@ void parse_dep_file(void *map, size_t len) p++; } memcpy(s, m, p-m); s[p-m] = 0; - if (strrcmp(s, "include/linux/autoconf.h") && + if (strrcmp(s, "include/generated/autoconf.h") && strrcmp(s, "arch/um/include/uml-config.h") && strrcmp(s, ".ver")) { printf(" %s \\\n", s); @@ -338,7 +349,7 @@ void parse_dep_file(void *map, size_t len) printf("$(deps_%s):\n", target); } -void print_deps(void) +static void print_deps(void) { struct stat st; int fd; @@ -346,11 +357,15 @@ void print_deps(void) fd = open(depfile, O_RDONLY); if (fd < 0) { - fprintf(stderr, "fixdep: "); + fprintf(stderr, "fixdep: error opening depfile: "); perror(depfile); exit(2); } - fstat(fd, &st); + if (fstat(fd, &st) < 0) { + fprintf(stderr, "fixdep: error fstat'ing depfile: "); + perror(depfile); + exit(2); + } if (st.st_size == 0) { fprintf(stderr,"fixdep: %s is empty\n",depfile); close(fd); @@ -370,7 +385,7 @@ void print_deps(void) close(fd); } -void traps(void) +static void traps(void) { static char test[] __attribute__((aligned(sizeof(int)))) = "CONF"; int *p = (int *)test; diff --git a/scripts/basic/hash.c b/scripts/basic/hash.c deleted file mode 100644 index 3299ad7fc8c0..000000000000 --- a/scripts/basic/hash.c +++ /dev/null @@ -1,64 +0,0 @@ -/* - * Copyright (C) 2008 Red Hat, Inc., Jason Baron <jbaron@redhat.com> - * - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#define DYNAMIC_DEBUG_HASH_BITS 6 - -static const char *program; - -static void usage(void) -{ - printf("Usage: %s <djb2|r5> <modname>\n", program); - exit(1); -} - -/* djb2 hashing algorithm by Dan Bernstein. From: - * http://www.cse.yorku.ca/~oz/hash.html - */ - -unsigned int djb2_hash(char *str) -{ - unsigned long hash = 5381; - int c; - - c = *str; - while (c) { - hash = ((hash << 5) + hash) + c; - c = *++str; - } - return (unsigned int)(hash & ((1 << DYNAMIC_DEBUG_HASH_BITS) - 1)); -} - -unsigned int r5_hash(char *str) -{ - unsigned long hash = 0; - int c; - - c = *str; - while (c) { - hash = (hash + (c << 4) + (c >> 4)) * 11; - c = *++str; - } - return (unsigned int)(hash & ((1 << DYNAMIC_DEBUG_HASH_BITS) - 1)); -} - -int main(int argc, char *argv[]) -{ - program = argv[0]; - - if (argc != 3) - usage(); - if (!strcmp(argv[1], "djb2")) - printf("%d\n", djb2_hash(argv[2])); - else if (!strcmp(argv[1], "r5")) - printf("%d\n", r5_hash(argv[2])); - else - usage(); - exit(0); -} - |