Makefile, configurator: Add additional debug flags to CFLAGS

[ccan] / tools / configurator / configurator.c

diff --git a/tools/configurator/configurator.c b/tools/configurator/configurator.c
index 3d2b16f5938eb6dca042778439b8c94ef77d6f4d..e2c13b7e57161d004832e80af0a78b9a967f48d9 100644 (file)
--- a/tools/configurator/configurator.c
+++ b/tools/configurator/configurator.c
@@ -1,5 +1,26 @@
 /* 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.
+ *
+ * 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.
+ */
 #include <stdio.h>
 #include <stdbool.h>
 #include <stdlib.h>
@@ -12,7 +33,7 @@
 #include <string.h>
 
 #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"
@@ -38,6 +59,11 @@ struct test {
 };
 
 static struct test tests[] = {
+       { "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE, NULL,
+         "#include <sys/types.h>\n"
+         "int main(int argc, char *argv[]) {\n"
+         "     return sizeof(off_t) == 4 ? 0 : 1;\n"
+         "}\n" },
        { "HAVE_ALIGNOF", INSIDE_MAIN, NULL,
          "return __alignof__(double) > 0 ? 0 : 1;" },
        { "HAVE_ASPRINTF", DEFINES_FUNC, NULL,
@@ -63,6 +89,12 @@ static struct test tests[] = {
          "static int __attribute__((unused)) func(int x) { return x; }" },
        { "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL,
          "static int __attribute__((used)) func(int x) { return x; }" },
+       { "HAVE_BACKTRACE", DEFINES_FUNC, 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,
          "union { int i; char c[sizeof(int)]; } u;\n"
          "u.i = 0x01020304;\n"
@@ -95,6 +127,13 @@ static struct test tests[] = {
        { "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL,
          "int *foo = (int[]) { 1, 2, 3, 4 };\n"
          "return foo[0] ? 0 : 1;" },
+       { "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE,
+         "HAVE_32BIT_OFF_T",
+         "#define _FILE_OFFSET_BITS 64\n"
+         "#include <sys/types.h>\n"
+         "int main(int argc, char *argv[]) {\n"
+         "     return sizeof(off_t) == 8 ? 0 : 1;\n"
+         "}\n" },
        { "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL,
          "for (int i = 0; i < argc; i++) { return 0; };\n"
          "return 1;" },
@@ -104,6 +143,7 @@ static struct test tests[] = {
          "#include <unistd.h>\n"
          "static int func(void) { return getpagesize(); }" },
        { "HAVE_ISBLANK", DEFINES_FUNC, NULL,
+         "#define _GNU_SOURCE\n"
          "#include <ctype.h>\n"
          "static int func(void) { return isblank(' '); }" },
        { "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL,
@@ -121,6 +161,13 @@ 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,
+         "#include <sys/types.h>\n"
+         "#include <sys/stat.h>\n"
+         "#include <sys/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,
          "#define _GNU_SOURCE 1\n"
@@ -134,6 +181,13 @@ 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_SECTION_START_STOP",
+         DEFINES_FUNC, 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,
          "static long nest(const void *base, unsigned int i)\n"
          "{\n"
@@ -381,7 +435,9 @@ int main(int argc, const char *argv[])
        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);
        for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)