/* Simple tool to create config.h.
- * Would be much easier with ccan modules, but deliberately standalone. */
+ * Would be much easier with ccan modules, but deliberately standalone.
+ *
+ * Copyright 2011 Rusty Russell <rusty@rustcorp.com.au>. MIT license.
+ *
+ * c12r_err, c12r_errx functions copied from ccan/err/err.c
+ * Copyright Rusty Russell <rusty@rustcorp.com.au>. CC0 (Public domain) License.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#define _POSIX_C_SOURCE 200809L /* For pclose, popen, strdup */
+
+#include <errno.h>
#include <stdio.h>
+#include <stdarg.h>
#include <stdbool.h>
#include <stdlib.h>
-#include <unistd.h>
-#include <err.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <fcntl.h>
#include <string.h>
+#ifdef _MSC_VER
+#define popen _popen
+#define pclose _pclose
+#endif
+
#define DEFAULT_COMPILER "cc"
-#define DEFAULT_FLAGS "-g -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
+#define DEFAULT_FLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
#define OUTPUT_FILE "configurator.out"
#define INPUT_FILE "configuratortest.c"
+#ifdef _WIN32
+#define DIR_SEP "\\"
+#else
+#define DIR_SEP "/"
+#endif
+
+static const char *progname = "";
static int verbose;
enum test_style {
- EXECUTE,
- OUTSIDE_MAIN,
- DEFINES_FUNC,
- INSIDE_MAIN
+ OUTSIDE_MAIN = 0x1,
+ DEFINES_FUNC = 0x2,
+ INSIDE_MAIN = 0x4,
+ DEFINES_EVERYTHING = 0x8,
+ MAY_NOT_COMPILE = 0x10,
+ EXECUTE = 0x8000
};
struct test {
const char *name;
enum test_style style;
const char *depends;
+ const char *link;
const char *fragment;
+ const char *flags;
+ const char *overrides; /* On success, force this to '1' */
bool done;
bool answer;
};
static struct test tests[] = {
- { "HAVE_ALIGNOF", INSIDE_MAIN, NULL,
+ { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
+ "#include <sys/types.h>\n"
+ "int main(void) {\n"
+ " return sizeof(off_t) == 4 ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_ALIGNOF", INSIDE_MAIN, NULL, NULL,
"return __alignof__(double) > 0 ? 0 : 1;" },
- { "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL,
+ { "HAVE_ASPRINTF", DEFINES_FUNC, NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
+ "#include <stdio.h>\n"
+ "static char *func(int x) {"
+ " char *p;\n"
+ " if (asprintf(&p, \"%u\", x) == -1) p = NULL;"
+ " return p;\n"
+ "}" },
+ { "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_PURE", DEFINES_FUNC, NULL, NULL,
+ "static int __attribute__((pure)) func(int x) { return x; }" },
+ { "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 <stdlib.h>\n"
"static void __attribute__((noreturn)) func(int x) { exit(x); }" },
- { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL,
- "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { }" },
- { "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL,
+ { "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, NULL,
+ "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { (void)fmt; }" },
+ { "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_BIG_ENDIAN", EXECUTE, NULL,
+ { "HAVE_BACKTRACE", DEFINES_FUNC, NULL, NULL,
+ "#include <execinfo.h>\n"
+ "static int func(int x) {"
+ " void *bt[10];\n"
+ " return backtrace(bt, 10) < x;\n"
+ "}" },
+ { "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 <byteswap.h>\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_CTZ", INSIDE_MAIN, NULL, NULL,
+ "return __builtin_ctz(1 << (sizeof(int)*8 - 1)) == (sizeof(int)*8 - 1) ? 0 : 1;" },
+ { "HAVE_BUILTIN_CTZL", INSIDE_MAIN, NULL, NULL,
+ "return __builtin_ctzl(1UL << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
+ { "HAVE_BUILTIN_CTZLL", INSIDE_MAIN, NULL, NULL,
+ "return __builtin_ctzll(1ULL << (sizeof(long long)*8 - 1)) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
+ { "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_FFS", INSIDE_MAIN, NULL, NULL,
+ "return __builtin_ffs(0) == 0 ? 0 : 1;" },
+ { "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_ICCARM_INTRINSICS", DEFINES_FUNC, NULL, NULL,
+ "#include <intrinsics.h>\n"
+ "int func(int v) {\n"
+ " return __CLZ(__RBIT(v));\n"
+ "}" },
+ { "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL, NULL,
"#include <byteswap.h>\n" },
- { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL,
- "char **foo = (char *[]) { \"x\", \"y\", \"z\" };\n"
+ { "HAVE_CLOCK_GETTIME",
+ DEFINES_FUNC, "HAVE_STRUCT_TIMESPEC", NULL,
+ "#include <time.h>\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 <time.h>\n"
+ "static struct timespec func(void) {\n"
+ " struct timespec ts;\n"
+ " clock_gettime(CLOCK_REALTIME, &ts);\n"
+ " return ts;\n"
+ "}\n",
+ /* This means HAVE_CLOCK_GETTIME, too */
+ "HAVE_CLOCK_GETTIME" },
+ { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, NULL,
+ "int *foo = (int[]) { 1, 2, 3, 4 };\n"
"return foo[0] ? 0 : 1;" },
- { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL,
- "for (int i = 0; i < argc; i++) { return 0; };\n"
- "return 1;" },
- { "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL,
+ { "HAVE_FCHDIR", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
+ "#include <sys/types.h>\n"
+ "#include <sys/stat.h>\n"
+ "#include <fcntl.h>\n"
+ "#include <unistd.h>\n"
+ "int main(void) {\n"
+ " int fd = open(\"..\", O_RDONLY);\n"
+ " return fchdir(fd) == 0 ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_ERR_H", DEFINES_FUNC, NULL, NULL,
+ "#include <err.h>\n"
+ "static void func(int arg) {\n"
+ " if (arg == 0)\n"
+ " err(1, \"err %u\", arg);\n"
+ " if (arg == 1)\n"
+ " errx(1, \"err %u\", arg);\n"
+ " if (arg == 3)\n"
+ " warn(\"warn %u\", arg);\n"
+ " if (arg == 4)\n"
+ " warnx(\"warn %u\", arg);\n"
+ "}\n" },
+ { "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
+ "HAVE_32BIT_OFF_T", NULL,
+ "#define _FILE_OFFSET_BITS 64\n"
+ "#include <sys/types.h>\n"
+ "int main(void) {\n"
+ " return sizeof(off_t) == 8 ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL,
+ "int ret = 1;\n"
+ "for (int i = 0; i < argc; i++) { ret = 0; };\n"
+ "return ret;" },
+ { "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 <unistd.h>\n"
"static int func(void) { return getpagesize(); }" },
- { "HAVE_LITTLE_ENDIAN", EXECUTE, NULL,
+ { "HAVE_ISBLANK", DEFINES_FUNC, NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
+ "#include <ctype.h>\n"
+ "static int func(void) { return isblank(' '); }" },
+ { "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_MMAP", DEFINES_FUNC, NULL,
+ { "HAVE_MEMMEM", DEFINES_FUNC, NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
+ "#include <string.h>\n"
+ "static void *func(void *h, size_t hl, void *n, size_t nl) {\n"
+ "return memmem(h, hl, n, nl);"
+ "}\n", },
+ { "HAVE_MEMRCHR", DEFINES_FUNC, NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
+ "#include <string.h>\n"
+ "static void *func(void *s, int c, size_t n) {\n"
+ "return memrchr(s, c, n);"
+ "}\n", },
+ { "HAVE_MMAP", DEFINES_FUNC, NULL, NULL,
"#include <sys/mman.h>\n"
"static void *func(int fd) {\n"
" return mmap(0, 65536, PROT_READ, MAP_SHARED, fd, 0);\n"
"}" },
- { "HAVE_NESTED_FUNCTIONS", DEFINES_FUNC, NULL,
- "static int func(int val) {\n"
- " auto void add(int val2);\n"
- " void add(int val2) { val += val2; }\n"
- " add(7);\n"
- " return val;\n"
- "}" },
- { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL,
+ { "HAVE_PROC_SELF_MAPS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
+ "#include <sys/types.h>\n"
+ "#include <sys/stat.h>\n"
+ "#include <fcntl.h>\n"
+ "int main(void) {\n"
+ " return open(\"/proc/self/maps\", O_RDONLY) != -1 ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_QSORT_R_PRIVATE_LAST",
+ DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
+ "#ifndef _GNU_SOURCE\n"
+ "#define _GNU_SOURCE\n"
+ "#endif\n"
+ "#include <stdlib.h>\n"
+ "static int cmp(const void *lp, const void *rp, void *priv) {\n"
+ " *(unsigned int *)priv = 1;\n"
+ " return *(const int *)lp - *(const int *)rp; }\n"
+ "int main(void) {\n"
+ " int array[] = { 9, 2, 5 };\n"
+ " unsigned int called = 0;\n"
+ " 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 <time.h>\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, 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, NULL,
+ "#include <stddef.h>\n"
+ "static ptrdiff_t nest(const void *base, unsigned int i)\n"
+ "{\n"
+ " if (i == 0)\n"
+ " return (const char *)&i - (const char *)base;\n"
+ " return nest(base, i-1);\n"
+ "}\n"
+ "int main(int argc, char *argv[]) {\n"
+ " (void)argv;\n"
+ " return (nest(&argc, argc) > 0) ? 0 : 1;\n"
+ "}\n" },
+ { "HAVE_STATEMENT_EXPR", INSIDE_MAIN, NULL, NULL,
"return ({ int x = argc; x == argc ? 0 : 1; });" },
- { "HAVE_TYPEOF", INSIDE_MAIN, NULL,
+ { "HAVE_SYS_FILIO_H", OUTSIDE_MAIN, NULL, NULL, /* Solaris needs this for FIONREAD */
+ "#include <sys/filio.h>\n" },
+ { "HAVE_SYS_TERMIOS_H", OUTSIDE_MAIN, NULL, NULL,
+ "#include <sys/termios.h>\n" },
+ { "HAVE_TYPEOF", INSIDE_MAIN, NULL, NULL,
"__typeof__(argc) i; i = argc; return i == argc ? 0 : 1;" },
- { "HAVE_UTIME", DEFINES_FUNC, NULL,
+ { "HAVE_UNALIGNED_ACCESS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
+ "#include <string.h>\n"
+ "int main(int argc, char *argv[]) {\n"
+ " (void)argc;\n"
+ " char pad[sizeof(int *) * 1];\n"
+ " strncpy(pad, argv[0], sizeof(pad));\n"
+ " int *x = (int *)pad, *y = (int *)(pad + 1);\n"
+ " return *x == *y;\n"
+ "}\n" },
+ { "HAVE_UTIME", DEFINES_FUNC, NULL, NULL,
"#include <sys/types.h>\n"
"#include <utime.h>\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 <sys/types.h>\n"
"#include <utime.h>\n"
"static __attribute__((warn_unused_result)) int func(int i) {\n"
" return i + 1;\n"
"}" },
+ { "HAVE_OPENMP", INSIDE_MAIN, NULL, NULL,
+ "int i;\n"
+ "#pragma omp parallel for\n"
+ "for(i = 0; i < 0; i++) {};\n"
+ "return 0;\n",
+ "-Werror -fopenmp" },
+ { "HAVE_VALGRIND_MEMCHECK_H", OUTSIDE_MAIN, NULL, NULL,
+ "#include <valgrind/memcheck.h>\n" },
+ { "HAVE_UCONTEXT", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
+ NULL, NULL,
+ "#include <ucontext.h>\n"
+ "static int x = 0;\n"
+ "static char stack[2048];\n"
+ "static ucontext_t a, b;\n"
+ "static void fn(void) {\n"
+ " x |= 2;\n"
+ " setcontext(&b);\n"
+ " x |= 4;\n"
+ "}\n"
+ "int main(void) {\n"
+ " x |= 1;\n"
+ " getcontext(&a);\n"
+ " a.uc_stack.ss_sp = stack;\n"
+ " a.uc_stack.ss_size = sizeof(stack);\n"
+ " makecontext(&a, fn, 0);\n"
+ " swapcontext(&b, &a);\n"
+ " return (x == 3) ? 0 : 1;\n"
+ "}\n"
+ },
+ { "HAVE_POINTER_SAFE_MAKECONTEXT", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
+ "HAVE_UCONTEXT", NULL,
+ "#include <stddef.h>\n"
+ "#include <ucontext.h>\n"
+ "static int worked = 0;\n"
+ "static char stack[1024];\n"
+ "static ucontext_t a, b;\n"
+ "static void fn(void *p, void *q) {\n"
+ " void *cp = &worked;\n"
+ " void *cq = (void *)(~((ptrdiff_t)cp));\n"
+ " if ((p == cp) && (q == cq))\n"
+ " worked = 1;\n"
+ " setcontext(&b);\n"
+ "}\n"
+ "int main(void) {\n"
+ " void *ap = &worked;\n"
+ " void *aq = (void *)(~((ptrdiff_t)ap));\n"
+ " getcontext(&a);\n"
+ " a.uc_stack.ss_sp = stack;\n"
+ " a.uc_stack.ss_size = sizeof(stack);\n"
+ " makecontext(&a, (void (*)(void))fn, 2, ap, aq);\n"
+ " swapcontext(&b, &a);\n"
+ " return worked ? 0 : 1;\n"
+ "}\n"
+ },
};
-static char *grab_fd(int fd)
+static void c12r_err(int eval, const char *fmt, ...)
+{
+ int err_errno = errno;
+ va_list ap;
+
+ fprintf(stderr, "%s: ", progname);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, ": %s\n", strerror(err_errno));
+ exit(eval);
+}
+
+static void c12r_errx(int eval, const char *fmt, ...)
+{
+ va_list ap;
+
+ fprintf(stderr, "%s: ", progname);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fprintf(stderr, "\n");
+ exit(eval);
+}
+
+static size_t fcopy(FILE *fsrc, FILE *fdst)
+{
+ char buffer[BUFSIZ];
+ size_t rsize, wsize;
+ size_t copied = 0;
+
+ while ((rsize = fread(buffer, 1, BUFSIZ, fsrc)) > 0) {
+ wsize = fwrite(buffer, 1, rsize, fdst);
+ copied += wsize;
+ if (wsize != rsize)
+ break;
+ }
+
+ return copied;
+}
+
+static char *grab_stream(FILE *file)
{
- int ret;
- size_t max, size = 0;
+ size_t max, ret, size = 0;
char *buffer;
- max = 16384;
- buffer = malloc(max+1);
- while ((ret = read(fd, buffer + size, max - size)) > 0) {
+ max = BUFSIZ;
+ buffer = malloc(max);
+ while ((ret = fread(buffer+size, 1, max - size, file)) == max - size) {
size += ret;
- if (size == max)
- buffer = realloc(buffer, max *= 2);
+ buffer = realloc(buffer, max *= 2);
}
- if (ret < 0)
- err(1, "reading from command");
+ size += ret;
+ if (ferror(file))
+ c12r_err(1, "reading from command");
buffer[size] = '\0';
return buffer;
}
static char *run(const char *cmd, int *exitstatus)
{
- pid_t pid;
- int p[2];
+ static const char redir[] = " 2>&1";
+ size_t cmdlen;
+ char *cmdredir;
+ FILE *cmdout;
char *ret;
- int status;
- if (pipe(p) != 0)
- err(1, "creating pipe");
-
- pid = fork();
- if (pid == -1)
- err(1, "forking");
-
- if (pid == 0) {
- if (dup2(p[1], STDOUT_FILENO) != STDOUT_FILENO
- || dup2(p[1], STDERR_FILENO) != STDERR_FILENO
- || close(p[0]) != 0
- || close(STDIN_FILENO) != 0
- || open("/dev/null", O_RDONLY) != STDIN_FILENO)
- exit(128);
-
- status = system(cmd);
- if (WIFEXITED(status))
- exit(WEXITSTATUS(status));
- /* Here's a hint... */
- exit(128 + WTERMSIG(status));
- }
+ cmdlen = strlen(cmd);
+ cmdredir = malloc(cmdlen + sizeof(redir));
+ memcpy(cmdredir, cmd, cmdlen);
+ memcpy(cmdredir + cmdlen, redir, sizeof(redir));
+
+ cmdout = popen(cmdredir, "r");
+ if (!cmdout)
+ c12r_err(1, "popen \"%s\"", cmdredir);
- close(p[1]);
- ret = grab_fd(p[0]);
- /* This shouldn't fail... */
- if (waitpid(pid, &status, 0) != pid)
- err(1, "Failed to wait for child");
- close(p[0]);
- if (WIFEXITED(status))
- *exitstatus = WEXITSTATUS(status);
- else
- *exitstatus = -WTERMSIG(status);
+ free(cmdredir);
+
+ ret = grab_stream(cmdout);
+ *exitstatus = pclose(cmdout);
return ret;
}
-static char *connect_args(char *argv[], const char *extra)
+static char *connect_args(const char *argv[], const char *extra)
{
unsigned int i, len = strlen(extra) + 1;
char *ret;
for (i = 1; argv[i]; i++) {
strcpy(ret + len, argv[i]);
len += strlen(argv[i]);
- ret[len++] = ' ';
+ if (argv[i+1])
+ ret[len++] = ' ';
}
strcpy(ret + len, extra);
return ret;
}
#define PRE_BOILERPLATE "/* Test program generated by configurator. */\n"
-#define MAIN_START_BOILERPLATE "int main(int argc, char *argv[]) {\n"
+#define MAIN_START_BOILERPLATE \
+ "int main(int argc, char *argv[]) {\n" \
+ " (void)argc;\n" \
+ " (void)argv;\n"
#define USE_FUNC_BOILERPLATE "(void)func;\n"
#define MAIN_BODY_BOILERPLATE "return 0;\n"
#define MAIN_END_BOILERPLATE "}\n"
static bool run_test(const char *cmd, struct test *test)
{
- char *output;
+ char *output, *newcmd;
FILE *outf;
int status;
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, " ")) != 0) {
+ 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;
+ }
+ if (deps[len])
+ free(dep);
+
+ deps += len;
+ deps += strspn(deps, " ");
+ }
}
- outf = fopen(INPUT_FILE, "w");
+ outf = fopen(INPUT_FILE, verbose > 1 ? "w+" : "w");
if (!outf)
- err(1, "creating %s", INPUT_FILE);
+ c12r_err(1, "creating %s", INPUT_FILE);
fprintf(outf, "%s", PRE_BOILERPLATE);
- switch (test->style) {
- case EXECUTE:
+ switch (test->style & ~(EXECUTE|MAY_NOT_COMPILE)) {
case INSIDE_MAIN:
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
fprintf(outf, "%s", test->fragment);
fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
break;
+ case DEFINES_EVERYTHING:
+ fprintf(outf, "%s", test->fragment);
+ break;
+ default:
+ abort();
+
+ }
+
+ if (verbose > 1) {
+ fseek(outf, 0, SEEK_SET);
+ fcopy(outf, stdout);
}
+
fclose(outf);
- if (verbose > 1)
- if (system("cat " INPUT_FILE) == -1);
+ newcmd = strdup(cmd);
+
+ if (test->flags) {
+ newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
+ + strlen(test->flags) + 1);
+ strcat(newcmd, " ");
+ strcat(newcmd, test->flags);
+ if (verbose > 1)
+ printf("Extra flags line: %s", newcmd);
+ }
+
+ if (test->link) {
+ newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
+ + strlen(test->link) + 1);
+ strcat(newcmd, " ");
+ strcat(newcmd, test->link);
+ if (verbose > 1)
+ printf("Extra link line: %s", newcmd);
+ }
+
+ output = run(newcmd, &status);
+
+ free(newcmd);
- output = run(cmd, &status);
if (status != 0 || strstr(output, "warning")) {
if (verbose)
printf("Compile %s for %s, status %i: %s\n",
status ? "fail" : "warning",
test->name, status, output);
- if (test->style == EXECUTE)
- errx(1, "Test for %s did not compile:\n%s",
- test->name, output);
+ if ((test->style & EXECUTE) && !(test->style & MAY_NOT_COMPILE))
+ c12r_errx(1, "Test for %s did not compile:\n%s",
+ test->name, output);
test->answer = false;
free(output);
} else {
/* Compile succeeded. */
free(output);
/* We run INSIDE_MAIN tests for sanity checking. */
- if (test->style == EXECUTE || test->style == INSIDE_MAIN) {
- output = run("./" OUTPUT_FILE, &status);
- if (test->style == INSIDE_MAIN && status != 0)
- errx(1, "Test for %s failed with %i:\n%s",
- test->name, status, output);
+ if ((test->style & EXECUTE) || (test->style & INSIDE_MAIN)) {
+ output = run("." DIR_SEP OUTPUT_FILE, &status);
+ if (!(test->style & EXECUTE) && status != 0)
+ c12r_errx(1, "Test for %s failed with %i:\n%s",
+ test->name, status, output);
if (verbose && status)
printf("%s exited %i\n", test->name, status);
free(output);
test->answer = (status == 0);
}
test->done = true;
+
+ if (test->answer && test->overrides) {
+ struct test *override = find_test(test->overrides);
+ override->done = true;
+ override->answer = true;
+ }
return test->answer;
}
-int main(int argc, char *argv[])
+int main(int argc, const char *argv[])
{
char *cmd;
- char *default_args[] = { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
unsigned int i;
+ const char *default_args[]
+ = { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
+
+ if (argc > 0)
+ progname = argv[0];
if (argc > 1) {
if (strcmp(argv[1], "--help") == 0) {
if (argc == 1)
argv = default_args;
- cmd = connect_args(argv, "-o " OUTPUT_FILE " " INPUT_FILE);
+ cmd = connect_args(argv, " -o " OUTPUT_FILE " " INPUT_FILE);
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
run_test(cmd, &tests[i]);
+ free(cmd);
- unlink(OUTPUT_FILE);
- unlink(INPUT_FILE);
+ remove(OUTPUT_FILE);
+ remove(INPUT_FILE);
- cmd[strlen(cmd) - strlen(" -o " OUTPUT_FILE " " INPUT_FILE)] = '\0';
- printf("#ifndef CCAN_CONFIG_H\n"
- "#define CCAN_CONFIG_H\n"
- "/* Generated by CCAN configurator */\n");
+ printf("/* Generated by CCAN configurator */\n"
+ "#ifndef CCAN_CONFIG_H\n"
+ "#define CCAN_CONFIG_H\n");
+ printf("#ifndef _GNU_SOURCE\n");
+ printf("#define _GNU_SOURCE /* Always use GNU extensions. */\n");
+ printf("#endif\n");
printf("#define CCAN_COMPILER \"%s\"\n", argv[1]);
- printf("#define CCAN_CFLAGS \"%s\"\n\n", cmd + strlen(argv[1]) + 1);
+ cmd = connect_args(argv+1, "");
+ printf("#define CCAN_CFLAGS \"%s\"\n\n", cmd);
+ free(cmd);
+ /* This one implies "#include <ccan/..." works, eg. for tdb2.h */
+ printf("#define HAVE_CCAN 1\n");
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
printf("#define %s %u\n", tests[i].name, tests[i].answer);
printf("#endif /* CCAN_CONFIG_H */\n");
projects / ccan / blobdiff