configurator: HAVE_SECTION_START_STOP

[ccan] / tools / configurator / configurator.c

diff --git a/tools/configurator/configurator.c b/tools/configurator/configurator.c
index 7b3403a9d96d50ca43b25abcc0143808f95e1cab..802559de979ffadafa5b24d4adeac3b8fd9b9f16 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>
@@ -68,6 +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"
@@ -134,6 +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"
@@ -147,6 +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"