tools: add HAVE_UNALIGNED_ACCESS test.

[ccan] / tools / configurator / configurator.c

diff --git a/tools/configurator/configurator.c b/tools/configurator/configurator.c
index d1aa5c61a564670e915a6921ee06fd9ec0968817..f4edb8ee1b214dbf97106bffe91335b12d5737ac 100644 (file)
--- a/tools/configurator/configurator.c
+++ b/tools/configurator/configurator.c
@@ -117,9 +117,9 @@ static struct test tests[] = {
        { "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(1 << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
+         "return __builtin_ctzl(1UL << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
        { "HAVE_BUILTIN_CTZLL", INSIDE_MAIN, NULL, NULL,
-         "return __builtin_ctzll(1 << (sizeof(long long)*8 - 1) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
+         "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, NULL,
@@ -214,6 +214,12 @@ static struct test tests[] = {
          "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,
+         "#define _GNU_SOURCE\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"
@@ -271,6 +277,13 @@ static struct test tests[] = {
          "#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"
+         "     char pad[sizeof(int *) * 1];\n"
+         "     strncpy(pad, argv[0], sizeof(pad));\n"
+         "     return *(int *)(pad) == *(int *)(pad + 1);\n"
+         "}\n" },
        { "HAVE_UTIME", DEFINES_FUNC, NULL, NULL,
          "#include <sys/types.h>\n"
          "#include <utime.h>\n"