X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Fconfigurator%2Fconfigurator.c;h=c7577c0cb661f028585d1aac397af363a6e7cb4e;hp=2139bcb2059267e9ebfe098831ee25d94c85fe8f;hb=becfc7c324d821fe135a1ad843c596399ed5068a;hpb=8d9d288e9a77cc58bbc2a0cb9274962139638c5b

diff --git a/tools/configurator/configurator.c b/tools/configurator/configurator.c
index 2139bcb2..c7577c0c 100644
--- a/tools/configurator/configurator.c
+++ b/tools/configurator/configurator.c
@@ -38,6 +38,12 @@
 #define OUTPUT_FILE "configurator.out"
 #define INPUT_FILE "configuratortest.c"
 
+#ifdef _WIN32
+#define DIR_SEP   "\\"
+#else
+#define DIR_SEP   "/"
+#endif
+
 static int verbose;
 
 enum test_style {
@@ -62,7 +68,7 @@ struct test {
 };
 
 static struct test tests[] = {
-	{ "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL, 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"
@@ -167,7 +173,7 @@ static struct test tests[] = {
 	{ "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, NULL,
 	  "int *foo = (int[]) { 1, 2, 3, 4 };\n"
 	  "return foo[0] ? 0 : 1;" },
-	{ "HAVE_FCHDIR", DEFINES_EVERYTHING|EXECUTE, NULL, 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"
@@ -188,7 +194,7 @@ static struct test tests[] = {
 	  "	if (arg == 4)\n"
 	  "		warnx(\"warn %u\", arg);\n"
 	  "}\n" },
-	{ "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE,
+	{ "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"
@@ -196,8 +202,9 @@ static struct test tests[] = {
 	  "	return sizeof(off_t) == 8 ? 0 : 1;\n"
 	  "}\n" },
 	{ "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL,
-	  "for (int i = 0; i < argc; i++) { return 0; };\n"
-	  "return 1;" },
+	  "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, NULL,
@@ -234,7 +241,7 @@ static struct test tests[] = {
 	  "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, 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"
@@ -271,7 +278,8 @@ static struct test tests[] = {
 	  "	return __stop_mysec - __start_mysec;\n"
 	  "}\n" },
 	{ "HAVE_STACK_GROWS_UPWARDS", DEFINES_EVERYTHING|EXECUTE, NULL, NULL,
-	  "static long nest(const void *base, unsigned int i)\n"
+	  "#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"
@@ -317,6 +325,54 @@ static struct test tests[] = {
 	  "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)
@@ -435,7 +491,7 @@ static bool run_test(const char *cmd, struct test *test)
 		char *dep;
 
 		/* Space-separated dependencies, could be ! for inverse. */
-		while ((len = strcspn(deps, " "))) {
+		while ((len = strcspn(deps, " ")) != 0) {
 			bool positive = true;
 			if (deps[len]) {
 				dep = strdup(deps);
@@ -495,7 +551,8 @@ static bool run_test(const char *cmd, struct test *test)
 	fclose(outf);
 
 	if (verbose > 1)
-		if (system("cat " INPUT_FILE) == -1);
+		if (system("cat " INPUT_FILE) == -1)
+			;
 
 	newcmd = strdup(cmd);
 
@@ -536,7 +593,7 @@ static bool run_test(const char *cmd, struct test *test)
 		free(output);
 		/* We run INSIDE_MAIN tests for sanity checking. */
 		if ((test->style & EXECUTE) || (test->style & INSIDE_MAIN)) {
-			output = run("./" OUTPUT_FILE, &status);
+			output = run("." DIR_SEP OUTPUT_FILE, &status);
 			if (!(test->style & EXECUTE) && status != 0)
 				errx(1, "Test for %s failed with %i:\n%s",
 				     test->name, status, output);
@@ -590,8 +647,8 @@ int main(int argc, const char *argv[])
 		run_test(cmd, &tests[i]);
 	free(cmd);
 
-	unlink(OUTPUT_FILE);
-	unlink(INPUT_FILE);
+	remove(OUTPUT_FILE);
+	remove(INPUT_FILE);
 
 	printf("/* Generated by CCAN configurator */\n"
 	       "#ifndef CCAN_CONFIG_H\n"