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_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
"#include <sys/types.h>\n"
- "int main(int argc, char *argv[]) {\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_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"
"#include <stdlib.h>\n"
"static void __attribute__((noreturn)) func(int x) { exit(x); }" },
{ "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, NULL,
- "static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { }" },
+ "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, NULL,
"HAVE_32BIT_OFF_T", NULL,
"#define _FILE_OFFSET_BITS 64\n"
"#include <sys/types.h>\n"
- "int main(int argc, char *argv[]) {\n"
+ "int main(void) {\n"
" return sizeof(off_t) == 8 ? 0 : 1;\n"
"}\n" },
{ "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL,
"#include <unistd.h>\n"
"static int func(void) { return getpagesize(); }" },
{ "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,
"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, 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_QSORT_R_PRIVATE_LAST",
DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
- "#define _GNU_SOURCE 1\n"
+ "#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 nest(base, i-1);\n"
"}\n"
"int main(int argc, char *argv[]) {\n"
- " return (nest(&argc, argc) > 0) ? 0 : 1\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; });" },
"#include <sys/termios.h>\n" },
{ "HAVE_TYPEOF", INSIDE_MAIN, NULL, NULL,
"__typeof__(argc) i; i = argc; return i == argc ? 0 : 1;" },
+ { "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 __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,
+ 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(int argc, char *argv[]) {\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,
+ "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(int argc, char *argv[]) {\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)
}
#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;
test->done = true;
return test->answer;
}
+ if (deps[len])
+ free(dep);
+
deps += len;
deps += strspn(deps, " ");
}
fclose(outf);
if (verbose > 1)
- if (system("cat " INPUT_FILE) == -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) {
- char *newcmd;
- newcmd = malloc(strlen(cmd) + strlen(" ")
+ newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
+ strlen(test->link) + 1);
- sprintf(newcmd, "%s %s", cmd, test->link);
+ strcat(newcmd, " ");
+ strcat(newcmd, test->link);
if (verbose > 1)
printf("Extra link line: %s", newcmd);
- cmd = newcmd;
}
- output = run(cmd, &status);
+ output = run(newcmd, &status);
+
+ free(newcmd);
+
if (status != 0 || strstr(output, "warning")) {
if (verbose)
printf("Compile %s for %s, status %i: %s\n",
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);
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", connect_args(argv+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++)
projects / ccan / blobdiff