From: Rusty Russell Date: Mon, 10 Sep 2012 06:14:43 +0000 (+0930) Subject: configurator: add library testing X-Git-Url: https://git.ozlabs.org/?p=ccan;a=commitdiff_plain;h=1ca32ce6d8031a30d648db54cbf0e007f0b9bca5;hp=bbb4aa72f0a087b3a1441e912ccac576c907e618 configurator: add library testing In particular, HAVE_CLOCK_GETTIME_IN_LIBRT. --- diff --git a/tools/configurator/configurator.c b/tools/configurator/configurator.c index 14c40934..eb472846 100644 --- a/tools/configurator/configurator.c +++ b/tools/configurator/configurator.c @@ -53,20 +53,21 @@ struct test { const char *name; enum test_style style; const char *depends; + const char *link; const char *fragment; bool done; bool answer; }; static struct test tests[] = { - { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL, + { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL, NULL, "#include \n" "int main(int argc, char *argv[]) {\n" " return sizeof(off_t) == 4 ? 0 : 1;\n" "}\n" }, - { "HAVE_ALIGNOF", INSIDE_MAIN, NULL, + { "HAVE_ALIGNOF", INSIDE_MAIN, NULL, NULL, "return __alignof__(double) > 0 ? 0 : 1;" }, - { "HAVE_ASPRINTF", DEFINES_FUNC, NULL, + { "HAVE_ASPRINTF", DEFINES_FUNC, NULL, NULL, "#define _GNU_SOURCE\n" "#include \n" "static char *func(int x) {" @@ -74,60 +75,78 @@ static struct test tests[] = { " if (asprintf(&p, \"%u\", x) == -1) p = NULL;" " return p;\n" "}" }, - { "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL, + { "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL, NULL, "static int __attribute__((cold)) func(int x) { return x; }" }, - { "HAVE_ATTRIBUTE_CONST", DEFINES_FUNC, NULL, + { "HAVE_ATTRIBUTE_CONST", DEFINES_FUNC, NULL, NULL, "static int __attribute__((const)) func(int x) { return x; }" }, - { "HAVE_ATTRIBUTE_MAY_ALIAS", OUTSIDE_MAIN, NULL, + { "HAVE_ATTRIBUTE_MAY_ALIAS", OUTSIDE_MAIN, NULL, NULL, "typedef short __attribute__((__may_alias__)) short_a;" }, - { "HAVE_ATTRIBUTE_NORETURN", DEFINES_FUNC, NULL, + { "HAVE_ATTRIBUTE_NORETURN", DEFINES_FUNC, NULL, NULL, "#include \n" "static void __attribute__((noreturn)) func(int x) { exit(x); }" }, - { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, + { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, NULL, "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { }" }, - { "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL, + { "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL, NULL, "static int __attribute__((unused)) func(int x) { return x; }" }, - { "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL, + { "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL, NULL, "static int __attribute__((used)) func(int x) { return x; }" }, - { "HAVE_BACKTRACE", DEFINES_FUNC, NULL, + { "HAVE_BACKTRACE", DEFINES_FUNC, NULL, NULL, "#include \n" "static int func(int x) {" " void *bt[10];\n" " return backtrace(bt, 10) < x;\n" "}" }, - { "HAVE_BIG_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, + { "HAVE_BIG_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL, "union { int i; char c[sizeof(int)]; } u;\n" "u.i = 0x01020304;\n" "return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;" }, - { "HAVE_BSWAP_64", DEFINES_FUNC, "HAVE_BYTESWAP_H", + { "HAVE_BSWAP_64", DEFINES_FUNC, "HAVE_BYTESWAP_H", NULL, "#include \n" "static int func(int x) { return bswap_64(x); }" }, - { "HAVE_BUILTIN_CHOOSE_EXPR", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_CHOOSE_EXPR", INSIDE_MAIN, NULL, NULL, "return __builtin_choose_expr(1, 0, \"garbage\");" }, - { "HAVE_BUILTIN_CLZ", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_CLZ", INSIDE_MAIN, NULL, NULL, "return __builtin_clz(1) == (sizeof(int)*8 - 1) ? 0 : 1;" }, - { "HAVE_BUILTIN_CLZL", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_CLZL", INSIDE_MAIN, NULL, NULL, "return __builtin_clzl(1) == (sizeof(long)*8 - 1) ? 0 : 1;" }, - { "HAVE_BUILTIN_CLZLL", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_CLZLL", INSIDE_MAIN, NULL, NULL, "return __builtin_clzll(1) == (sizeof(long long)*8 - 1) ? 0 : 1;" }, - { "HAVE_BUILTIN_CONSTANT_P", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_CONSTANT_P", INSIDE_MAIN, NULL, NULL, "return __builtin_constant_p(1) ? 0 : 1;" }, - { "HAVE_BUILTIN_EXPECT", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_EXPECT", INSIDE_MAIN, NULL, NULL, "return __builtin_expect(argc == 1, 1) ? 0 : 1;" }, - { "HAVE_BUILTIN_FFSL", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_FFSL", INSIDE_MAIN, NULL, NULL, "return __builtin_ffsl(0L) == 0 ? 0 : 1;" }, - { "HAVE_BUILTIN_FFSLL", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_FFSLL", INSIDE_MAIN, NULL, NULL, "return __builtin_ffsll(0LL) == 0 ? 0 : 1;" }, - { "HAVE_BUILTIN_POPCOUNTL", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_POPCOUNTL", INSIDE_MAIN, NULL, NULL, "return __builtin_popcountl(255L) == 8 ? 0 : 1;" }, - { "HAVE_BUILTIN_TYPES_COMPATIBLE_P", INSIDE_MAIN, NULL, + { "HAVE_BUILTIN_TYPES_COMPATIBLE_P", INSIDE_MAIN, NULL, NULL, "return __builtin_types_compatible_p(char *, int) ? 1 : 0;" }, - { "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL, + { "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL, NULL, "#include \n" }, - { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, + { "HAVE_CLOCK_GETTIME", + DEFINES_FUNC, "HAVE_STRUCT_TIMESPEC", NULL, + "#include \n" + "static struct timespec func(void) {\n" + " struct timespec ts;\n" + " clock_gettime(CLOCK_REALTIME, &ts);\n" + " return ts;\n" + "}\n" }, + { "HAVE_CLOCK_GETTIME_IN_LIBRT", + DEFINES_FUNC, + "HAVE_STRUCT_TIMESPEC !HAVE_CLOCK_GETTIME", + "-lrt", + "#include \n" + "static struct timespec func(void) {\n" + " struct timespec ts;\n" + " clock_gettime(CLOCK_REALTIME, &ts);\n" + " return ts;\n" + "}\n" }, + { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, NULL, "int *foo = (int[]) { 1, 2, 3, 4 };\n" "return foo[0] ? 0 : 1;" }, - { "HAVE_ERR_H", DEFINES_FUNC, NULL, + { "HAVE_ERR_H", DEFINES_FUNC, NULL, NULL, "#include \n" "static void func(int arg) {\n" " if (arg == 0)\n" @@ -140,40 +159,40 @@ static struct test tests[] = { " warnx(\"warn %u\", arg);\n" "}\n" }, { "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE, - "HAVE_32BIT_OFF_T", + "HAVE_32BIT_OFF_T", NULL, "#define _FILE_OFFSET_BITS 64\n" "#include \n" "int main(int argc, char *argv[]) {\n" " return sizeof(off_t) == 8 ? 0 : 1;\n" "}\n" }, - { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, + { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL, "for (int i = 0; i < argc; i++) { return 0; };\n" "return 1;" }, - { "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL, + { "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL, NULL, "struct foo { unsigned int x; int arr[]; };" }, - { "HAVE_GETPAGESIZE", DEFINES_FUNC, NULL, + { "HAVE_GETPAGESIZE", DEFINES_FUNC, NULL, NULL, "#include \n" "static int func(void) { return getpagesize(); }" }, - { "HAVE_ISBLANK", DEFINES_FUNC, NULL, + { "HAVE_ISBLANK", DEFINES_FUNC, NULL, NULL, "#define _GNU_SOURCE\n" "#include \n" "static int func(void) { return isblank(' '); }" }, - { "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, + { "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL, "union { int i; char c[sizeof(int)]; } u;\n" "u.i = 0x01020304;\n" "return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;" }, - { "HAVE_MEMMEM", DEFINES_FUNC, NULL, + { "HAVE_MEMMEM", DEFINES_FUNC, NULL, NULL, "#define _GNU_SOURCE\n" "#include \n" "static void *func(void *h, size_t hl, void *n, size_t nl) {\n" "return memmem(h, hl, n, nl);" "}\n", }, - { "HAVE_MMAP", DEFINES_FUNC, NULL, + { "HAVE_MMAP", DEFINES_FUNC, NULL, NULL, "#include \n" "static void *func(int fd) {\n" " return mmap(0, 65536, PROT_READ, MAP_SHARED, fd, 0);\n" "}" }, - { "HAVE_PROC_SELF_MAPS", DEFINES_EVERYTHING|EXECUTE, NULL, + { "HAVE_PROC_SELF_MAPS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL, "#include \n" "#include \n" "#include \n" @@ -181,7 +200,7 @@ static struct test tests[] = { " return open(\"/proc/self/maps\", O_RDONLY) != -1 ? 0 : 1;\n" "}\n" }, { "HAVE_QSORT_R_PRIVATE_LAST", - DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, + DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL, "#define _GNU_SOURCE 1\n" "#include \n" "static int cmp(const void *lp, const void *rp, void *priv) {\n" @@ -193,14 +212,21 @@ static struct test tests[] = { " qsort_r(array, 3, sizeof(int), cmp, &called);\n" " return called && array[0] == 2 && array[1] == 5 && array[2] == 9 ? 0 : 1;\n" "}\n" }, + { "HAVE_STRUCT_TIMESPEC", + DEFINES_FUNC, NULL, NULL, + "#include \n" + "static void func(void) {\n" + " struct timespec ts;\n" + " ts.tv_sec = ts.tv_nsec = 1;\n" + "}\n" }, { "HAVE_SECTION_START_STOP", - DEFINES_FUNC, NULL, + DEFINES_FUNC, NULL, NULL, "static void *__attribute__((__section__(\"mysec\"))) p = &p;\n" "static int func(void) {\n" " extern void *__start_mysec[], *__stop_mysec[];\n" " return __stop_mysec - __start_mysec;\n" "}\n" }, - { "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL, + { "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL, "static long nest(const void *base, unsigned int i)\n" "{\n" " if (i == 0)\n" @@ -210,20 +236,20 @@ static struct test tests[] = { "int main(int argc, char *argv[]) {\n" " return (nest(&argc, argc) > 0) ? 0 : 1\n;" "}\n" }, - { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL, + { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL, NULL, "return ({ int x = argc; x == argc ? 0 : 1; });" }, - { "HAVE_SYS_FILIO_H", OUTSIDE_MAIN, NULL, /* Solaris needs this for FIONREAD */ + { "HAVE_SYS_FILIO_H", OUTSIDE_MAIN, NULL, NULL, /* Solaris needs this for FIONREAD */ "#include \n" }, - { "HAVE_TYPEOF", INSIDE_MAIN, NULL, + { "HAVE_TYPEOF", INSIDE_MAIN, NULL, NULL, "__typeof__(argc) i; i = argc; return i == argc ? 0 : 1;" }, - { "HAVE_UTIME", DEFINES_FUNC, NULL, + { "HAVE_UTIME", DEFINES_FUNC, NULL, NULL, "#include \n" "#include \n" "static int func(const char *filename) {\n" " struct utimbuf times = { 0 };\n" " return utime(filename, ×);\n" "}" }, - { "HAVE_WARN_UNUSED_RESULT", DEFINES_FUNC, NULL, + { "HAVE_WARN_UNUSED_RESULT", DEFINES_FUNC, NULL, NULL, "#include \n" "#include \n" "static __attribute__((warn_unused_result)) int func(int i) {\n" @@ -337,10 +363,33 @@ static bool run_test(const char *cmd, struct test *test) if (test->done) return test->answer; - if (test->depends && !run_test(cmd, find_test(test->depends))) { - test->answer = false; - test->done = true; - return test->answer; + if (test->depends) { + size_t len; + const char *deps = test->depends; + char *dep; + + /* Space-separated dependencies, could be ! for inverse. */ + while ((len = strcspn(deps, " "))) { + bool positive = true; + if (deps[len]) { + dep = strdup(deps); + dep[len] = '\0'; + } else { + dep = (char *)deps; + } + + if (dep[0] == '!') { + dep++; + positive = false; + } + if (run_test(cmd, find_test(dep)) != positive) { + test->answer = false; + test->done = true; + return test->answer; + } + deps += len; + deps += strspn(deps, " "); + } } outf = fopen(INPUT_FILE, "w"); @@ -379,6 +428,16 @@ static bool run_test(const char *cmd, struct test *test) if (verbose > 1) if (system("cat " INPUT_FILE) == -1); + if (test->link) { + char *newcmd; + newcmd = malloc(strlen(cmd) + strlen(" ") + + strlen(test->link) + 1); + sprintf(newcmd, "%s %s", cmd, test->link); + if (verbose > 1) + printf("Extra link line: %s", newcmd); + cmd = newcmd; + } + output = run(cmd, &status); if (status != 0 || strstr(output, "warning")) { if (verbose)