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747 lines
22 KiB
747 lines
22 KiB
/* Simple tool to create config.h.
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* Would be much easier with ccan modules, but deliberately standalone.
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*
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* Copyright 2011 Rusty Russell <rusty@rustcorp.com.au>. MIT license.
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*
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* c12r_err, c12r_errx functions copied from ccan/err/err.c
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* Copyright Rusty Russell <rusty@rustcorp.com.au>. CC0 (Public domain) License.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#define _POSIX_C_SOURCE 200809L /* For pclose, popen, strdup */
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#include <errno.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef _MSC_VER
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#define popen _popen
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#define pclose _pclose
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#endif
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#ifdef _MSC_VER
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#define DEFAULT_COMPILER "cl"
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/* Note: Dash options avoid POSIX path conversion when used under msys bash
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* and are therefore preferred to slash (e.g. -nologo over /nologo)
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* Note: Disable Warning 4200 "nonstandard extension used : zero-sized array
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* in struct/union" for flexible array members.
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*/
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#define DEFAULT_FLAGS "-nologo -Zi -W4 -wd4200 " \
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"-D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_WARNINGS"
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#define DEFAULT_OUTPUT_EXE_FLAG "-Fe:"
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#else
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#define DEFAULT_COMPILER "cc"
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#define DEFAULT_FLAGS "-g3 -ggdb -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition"
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#define DEFAULT_OUTPUT_EXE_FLAG "-o"
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#endif
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#define OUTPUT_FILE "configurator.out"
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#define INPUT_FILE "configuratortest.c"
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#ifdef _WIN32
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#define DIR_SEP "\\"
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#else
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#define DIR_SEP "/"
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#endif
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static const char *progname = "";
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static int verbose;
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enum test_style {
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OUTSIDE_MAIN = 0x1,
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DEFINES_FUNC = 0x2,
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INSIDE_MAIN = 0x4,
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DEFINES_EVERYTHING = 0x8,
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MAY_NOT_COMPILE = 0x10,
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EXECUTE = 0x8000
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};
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struct test {
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const char *name;
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enum test_style style;
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const char *depends;
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const char *link;
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const char *fragment;
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const char *flags;
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const char *overrides; /* On success, force this to '1' */
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bool done;
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bool answer;
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};
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static struct test tests[] = {
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{ "HAVE_32BIT_OFF_T", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
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"#include <sys/types.h>\n"
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"int main(void) {\n"
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" return sizeof(off_t) == 4 ? 0 : 1;\n"
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"}\n" },
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{ "HAVE_ALIGNOF", INSIDE_MAIN, NULL, NULL,
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"return __alignof__(double) > 0 ? 0 : 1;" },
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{ "HAVE_ASPRINTF", DEFINES_FUNC, NULL, NULL,
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"#ifndef _GNU_SOURCE\n"
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"#define _GNU_SOURCE\n"
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"#endif\n"
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"#include <stdio.h>\n"
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"static char *func(int x) {"
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" char *p;\n"
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" if (asprintf(&p, \"%u\", x) == -1) p = NULL;"
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" return p;\n"
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"}" },
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{ "HAVE_ATTRIBUTE_COLD", DEFINES_FUNC, NULL, NULL,
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"static int __attribute__((cold)) func(int x) { return x; }" },
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{ "HAVE_ATTRIBUTE_CONST", DEFINES_FUNC, NULL, NULL,
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"static int __attribute__((const)) func(int x) { return x; }" },
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{ "HAVE_ATTRIBUTE_PURE", DEFINES_FUNC, NULL, NULL,
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"static int __attribute__((pure)) func(int x) { return x; }" },
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{ "HAVE_ATTRIBUTE_MAY_ALIAS", OUTSIDE_MAIN, NULL, NULL,
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"typedef short __attribute__((__may_alias__)) short_a;" },
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{ "HAVE_ATTRIBUTE_NORETURN", DEFINES_FUNC, NULL, NULL,
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"#include <stdlib.h>\n"
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"static void __attribute__((noreturn)) func(int x) { exit(x); }" },
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{ "HAVE_ATTRIBUTE_PRINTF", DEFINES_FUNC, NULL, NULL,
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"static void __attribute__((format(__printf__, 1, 2))) func(const char *fmt, ...) { (void)fmt; }" },
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{ "HAVE_ATTRIBUTE_UNUSED", OUTSIDE_MAIN, NULL, NULL,
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"static int __attribute__((unused)) func(int x) { return x; }" },
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{ "HAVE_ATTRIBUTE_USED", OUTSIDE_MAIN, NULL, NULL,
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"static int __attribute__((used)) func(int x) { return x; }" },
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{ "HAVE_BACKTRACE", DEFINES_FUNC, NULL, NULL,
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"#include <execinfo.h>\n"
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"static int func(int x) {"
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" void *bt[10];\n"
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" return backtrace(bt, 10) < x;\n"
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"}" },
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{ "HAVE_BIG_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL,
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"union { int i; char c[sizeof(int)]; } u;\n"
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"u.i = 0x01020304;\n"
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"return u.c[0] == 0x01 && u.c[1] == 0x02 && u.c[2] == 0x03 && u.c[3] == 0x04 ? 0 : 1;" },
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{ "HAVE_BSWAP_64", DEFINES_FUNC, "HAVE_BYTESWAP_H", NULL,
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"#include <byteswap.h>\n"
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"static int func(int x) { return bswap_64(x); }" },
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{ "HAVE_BUILTIN_CHOOSE_EXPR", INSIDE_MAIN, NULL, NULL,
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"return __builtin_choose_expr(1, 0, \"garbage\");" },
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{ "HAVE_BUILTIN_CLZ", INSIDE_MAIN, NULL, NULL,
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"return __builtin_clz(1) == (sizeof(int)*8 - 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_CLZL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_clzl(1) == (sizeof(long)*8 - 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_CLZLL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_clzll(1) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_CTZ", INSIDE_MAIN, NULL, NULL,
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"return __builtin_ctz(1 << (sizeof(int)*8 - 1)) == (sizeof(int)*8 - 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_CTZL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_ctzl(1UL << (sizeof(long)*8 - 1)) == (sizeof(long)*8 - 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_CTZLL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_ctzll(1ULL << (sizeof(long long)*8 - 1)) == (sizeof(long long)*8 - 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_CONSTANT_P", INSIDE_MAIN, NULL, NULL,
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"return __builtin_constant_p(1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_EXPECT", INSIDE_MAIN, NULL, NULL,
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"return __builtin_expect(argc == 1, 1) ? 0 : 1;" },
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{ "HAVE_BUILTIN_FFS", INSIDE_MAIN, NULL, NULL,
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"return __builtin_ffs(0) == 0 ? 0 : 1;" },
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{ "HAVE_BUILTIN_FFSL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_ffsl(0L) == 0 ? 0 : 1;" },
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{ "HAVE_BUILTIN_FFSLL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_ffsll(0LL) == 0 ? 0 : 1;" },
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{ "HAVE_BUILTIN_POPCOUNTL", INSIDE_MAIN, NULL, NULL,
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"return __builtin_popcountl(255L) == 8 ? 0 : 1;" },
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{ "HAVE_BUILTIN_TYPES_COMPATIBLE_P", INSIDE_MAIN, NULL, NULL,
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"return __builtin_types_compatible_p(char *, int) ? 1 : 0;" },
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{ "HAVE_ICCARM_INTRINSICS", DEFINES_FUNC, NULL, NULL,
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"#include <intrinsics.h>\n"
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"int func(int v) {\n"
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" return __CLZ(__RBIT(v));\n"
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"}" },
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{ "HAVE_BYTESWAP_H", OUTSIDE_MAIN, NULL, NULL,
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"#include <byteswap.h>\n" },
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{ "HAVE_CLOCK_GETTIME",
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DEFINES_FUNC, "HAVE_STRUCT_TIMESPEC", NULL,
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"#include <time.h>\n"
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"static struct timespec func(void) {\n"
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" struct timespec ts;\n"
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" clock_gettime(CLOCK_REALTIME, &ts);\n"
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" return ts;\n"
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"}\n" },
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{ "HAVE_CLOCK_GETTIME_IN_LIBRT",
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DEFINES_FUNC,
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"HAVE_STRUCT_TIMESPEC !HAVE_CLOCK_GETTIME",
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"-lrt",
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"#include <time.h>\n"
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"static struct timespec func(void) {\n"
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" struct timespec ts;\n"
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" clock_gettime(CLOCK_REALTIME, &ts);\n"
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" return ts;\n"
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"}\n",
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/* This means HAVE_CLOCK_GETTIME, too */
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"HAVE_CLOCK_GETTIME" },
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{ "HAVE_COMPOUND_LITERALS", INSIDE_MAIN, NULL, NULL,
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"int *foo = (int[]) { 1, 2, 3, 4 };\n"
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"return foo[0] ? 0 : 1;" },
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{ "HAVE_FCHDIR", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
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"#include <sys/types.h>\n"
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"#include <sys/stat.h>\n"
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"#include <fcntl.h>\n"
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"#include <unistd.h>\n"
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"int main(void) {\n"
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" int fd = open(\"..\", O_RDONLY);\n"
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" return fchdir(fd) == 0 ? 0 : 1;\n"
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"}\n" },
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{ "HAVE_ERR_H", DEFINES_FUNC, NULL, NULL,
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"#include <err.h>\n"
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"static void func(int arg) {\n"
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" if (arg == 0)\n"
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" err(1, \"err %u\", arg);\n"
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" if (arg == 1)\n"
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" errx(1, \"err %u\", arg);\n"
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" if (arg == 3)\n"
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" warn(\"warn %u\", arg);\n"
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" if (arg == 4)\n"
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" warnx(\"warn %u\", arg);\n"
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"}\n" },
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{ "HAVE_FILE_OFFSET_BITS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE,
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"HAVE_32BIT_OFF_T", NULL,
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"#define _FILE_OFFSET_BITS 64\n"
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"#include <sys/types.h>\n"
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|
"int main(void) {\n"
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" return sizeof(off_t) == 8 ? 0 : 1;\n"
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"}\n" },
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{ "HAVE_FOR_LOOP_DECLARATION", INSIDE_MAIN, NULL, NULL,
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"int ret = 1;\n"
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"for (int i = 0; i < argc; i++) { ret = 0; };\n"
|
|
"return ret;" },
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|
{ "HAVE_FLEXIBLE_ARRAY_MEMBER", OUTSIDE_MAIN, NULL, NULL,
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|
"struct foo { unsigned int x; int arr[]; };" },
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{ "HAVE_GETPAGESIZE", DEFINES_FUNC, NULL, NULL,
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|
"#include <unistd.h>\n"
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"static int func(void) { return getpagesize(); }" },
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{ "HAVE_ISBLANK", DEFINES_FUNC, NULL, NULL,
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"#ifndef _GNU_SOURCE\n"
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"#define _GNU_SOURCE\n"
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"#endif\n"
|
|
"#include <ctype.h>\n"
|
|
"static int func(void) { return isblank(' '); }" },
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{ "HAVE_LITTLE_ENDIAN", INSIDE_MAIN|EXECUTE, NULL, NULL,
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|
"union { int i; char c[sizeof(int)]; } u;\n"
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"u.i = 0x01020304;\n"
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"return u.c[0] == 0x04 && u.c[1] == 0x03 && u.c[2] == 0x02 && u.c[3] == 0x01 ? 0 : 1;" },
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{ "HAVE_MEMMEM", DEFINES_FUNC, NULL, NULL,
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"#ifndef _GNU_SOURCE\n"
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"#define _GNU_SOURCE\n"
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"#endif\n"
|
|
"#include <string.h>\n"
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|
"static void *func(void *h, size_t hl, void *n, size_t nl) {\n"
|
|
"return memmem(h, hl, n, nl);"
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"}\n", },
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|
{ "HAVE_MEMRCHR", DEFINES_FUNC, NULL, NULL,
|
|
"#ifndef _GNU_SOURCE\n"
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"#define _GNU_SOURCE\n"
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|
"#endif\n"
|
|
"#include <string.h>\n"
|
|
"static void *func(void *s, int c, size_t n) {\n"
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"return memrchr(s, c, n);"
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|
"}\n", },
|
|
{ "HAVE_MMAP", DEFINES_FUNC, NULL, NULL,
|
|
"#include <sys/mman.h>\n"
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|
"static void *func(int fd) {\n"
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|
" return mmap(0, 65536, PROT_READ, MAP_SHARED, fd, 0);\n"
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"}" },
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|
{ "HAVE_PROC_SELF_MAPS", DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
|
|
"#include <sys/types.h>\n"
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|
"#include <sys/stat.h>\n"
|
|
"#include <fcntl.h>\n"
|
|
"int main(void) {\n"
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|
" return open(\"/proc/self/maps\", O_RDONLY) != -1 ? 0 : 1;\n"
|
|
"}\n" },
|
|
{ "HAVE_QSORT_R_PRIVATE_LAST",
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|
DEFINES_EVERYTHING|EXECUTE|MAY_NOT_COMPILE, NULL, NULL,
|
|
"#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"
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|
" *(unsigned int *)priv = 1;\n"
|
|
" return *(const int *)lp - *(const int *)rp; }\n"
|
|
"int main(void) {\n"
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|
" int array[] = { 9, 2, 5 };\n"
|
|
" unsigned int called = 0;\n"
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|
" qsort_r(array, 3, sizeof(int), cmp, &called);\n"
|
|
" return called && array[0] == 2 && array[1] == 5 && array[2] == 9 ? 0 : 1;\n"
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"}\n" },
|
|
{ "HAVE_STRUCT_TIMESPEC",
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DEFINES_FUNC, NULL, NULL,
|
|
"#include <time.h>\n"
|
|
"static void func(void) {\n"
|
|
" struct timespec ts;\n"
|
|
" ts.tv_sec = ts.tv_nsec = 1;\n"
|
|
"}\n" },
|
|
{ "HAVE_SECTION_START_STOP",
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|
DEFINES_FUNC, NULL, 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, NULL,
|
|
"#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"
|
|
" return nest(base, i-1);\n"
|
|
"}\n"
|
|
"int main(int argc, char *argv[]) {\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; });" },
|
|
{ "HAVE_SYS_FILIO_H", OUTSIDE_MAIN, NULL, NULL, /* Solaris needs this for FIONREAD */
|
|
"#include <sys/filio.h>\n" },
|
|
{ "HAVE_SYS_TERMIOS_H", OUTSIDE_MAIN, NULL, NULL,
|
|
"#include <sys/termios.h>\n" },
|
|
{ "HAVE_SYS_UNISTD_H", OUTSIDE_MAIN, NULL, NULL,
|
|
"#include <sys/unistd.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 int func(const char *filename) {\n"
|
|
" struct utimbuf times = { 0 };\n"
|
|
" return utime(filename, ×);\n"
|
|
"}" },
|
|
{ "HAVE_WARN_UNUSED_RESULT", 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|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 void c12r_err(int eval, const char *fmt, ...)
|
|
{
|
|
int err_errno = errno;
|
|
va_list ap;
|
|
|
|
fprintf(stderr, "%s: ", progname);
|
|
va_start(ap, fmt);
|
|
vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, ": %s\n", strerror(err_errno));
|
|
exit(eval);
|
|
}
|
|
|
|
static void c12r_errx(int eval, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
fprintf(stderr, "%s: ", progname);
|
|
va_start(ap, fmt);
|
|
vfprintf(stderr, fmt, ap);
|
|
va_end(ap);
|
|
fprintf(stderr, "\n");
|
|
exit(eval);
|
|
}
|
|
|
|
static size_t fcopy(FILE *fsrc, FILE *fdst)
|
|
{
|
|
char buffer[BUFSIZ];
|
|
size_t rsize, wsize;
|
|
size_t copied = 0;
|
|
|
|
while ((rsize = fread(buffer, 1, BUFSIZ, fsrc)) > 0) {
|
|
wsize = fwrite(buffer, 1, rsize, fdst);
|
|
copied += wsize;
|
|
if (wsize != rsize)
|
|
break;
|
|
}
|
|
|
|
return copied;
|
|
}
|
|
|
|
static char *grab_stream(FILE *file)
|
|
{
|
|
size_t max, ret, size = 0;
|
|
char *buffer;
|
|
|
|
max = BUFSIZ;
|
|
buffer = malloc(max);
|
|
while ((ret = fread(buffer+size, 1, max - size, file)) == max - size) {
|
|
size += ret;
|
|
buffer = realloc(buffer, max *= 2);
|
|
}
|
|
size += ret;
|
|
if (ferror(file))
|
|
c12r_err(1, "reading from command");
|
|
buffer[size] = '\0';
|
|
return buffer;
|
|
}
|
|
|
|
static char *run(const char *cmd, int *exitstatus)
|
|
{
|
|
static const char redir[] = " 2>&1";
|
|
size_t cmdlen;
|
|
char *cmdredir;
|
|
FILE *cmdout;
|
|
char *ret;
|
|
|
|
cmdlen = strlen(cmd);
|
|
cmdredir = malloc(cmdlen + sizeof(redir));
|
|
memcpy(cmdredir, cmd, cmdlen);
|
|
memcpy(cmdredir + cmdlen, redir, sizeof(redir));
|
|
|
|
cmdout = popen(cmdredir, "r");
|
|
if (!cmdout)
|
|
c12r_err(1, "popen \"%s\"", cmdredir);
|
|
|
|
free(cmdredir);
|
|
|
|
ret = grab_stream(cmdout);
|
|
*exitstatus = pclose(cmdout);
|
|
return ret;
|
|
}
|
|
|
|
static char *connect_args(const char *argv[], const char *outflag,
|
|
const char *files)
|
|
{
|
|
unsigned int i;
|
|
char *ret;
|
|
size_t len = strlen(outflag) + strlen(files) + 1;
|
|
|
|
for (i = 1; argv[i]; i++)
|
|
len += 1 + strlen(argv[i]);
|
|
|
|
ret = malloc(len);
|
|
len = 0;
|
|
for (i = 1; argv[i]; i++) {
|
|
strcpy(ret + len, argv[i]);
|
|
len += strlen(argv[i]);
|
|
if (argv[i+1] || *outflag)
|
|
ret[len++] = ' ';
|
|
}
|
|
strcpy(ret + len, outflag);
|
|
len += strlen(outflag);
|
|
strcpy(ret + len, files);
|
|
return ret;
|
|
}
|
|
|
|
static struct test *find_test(const char *name)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
|
|
if (strcmp(tests[i].name, name) == 0)
|
|
return &tests[i];
|
|
}
|
|
abort();
|
|
}
|
|
|
|
#define PRE_BOILERPLATE "/* Test program generated by configurator. */\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, *newcmd;
|
|
FILE *outf;
|
|
int status;
|
|
|
|
if (test->done)
|
|
return test->answer;
|
|
|
|
if (test->depends) {
|
|
size_t len;
|
|
const char *deps = test->depends;
|
|
char *dep;
|
|
|
|
/* Space-separated dependencies, could be ! for inverse. */
|
|
while ((len = strcspn(deps, " ")) != 0) {
|
|
bool positive = true;
|
|
if (deps[len]) {
|
|
dep = strdup(deps);
|
|
dep[len] = '\0';
|
|
} else {
|
|
dep = (char *)deps;
|
|
}
|
|
|
|
if (dep[0] == '!') {
|
|
dep++;
|
|
positive = false;
|
|
}
|
|
if (run_test(cmd, find_test(dep)) != positive) {
|
|
test->answer = false;
|
|
test->done = true;
|
|
return test->answer;
|
|
}
|
|
if (deps[len])
|
|
free(dep);
|
|
|
|
deps += len;
|
|
deps += strspn(deps, " ");
|
|
}
|
|
}
|
|
|
|
outf = fopen(INPUT_FILE, verbose > 1 ? "w+" : "w");
|
|
if (!outf)
|
|
c12r_err(1, "creating %s", INPUT_FILE);
|
|
|
|
fprintf(outf, "%s", PRE_BOILERPLATE);
|
|
switch (test->style & ~(EXECUTE|MAY_NOT_COMPILE)) {
|
|
case INSIDE_MAIN:
|
|
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
|
|
fprintf(outf, "%s", test->fragment);
|
|
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
|
|
break;
|
|
case OUTSIDE_MAIN:
|
|
fprintf(outf, "%s", test->fragment);
|
|
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
|
|
fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
|
|
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
|
|
break;
|
|
case DEFINES_FUNC:
|
|
fprintf(outf, "%s", test->fragment);
|
|
fprintf(outf, "%s", MAIN_START_BOILERPLATE);
|
|
fprintf(outf, "%s", USE_FUNC_BOILERPLATE);
|
|
fprintf(outf, "%s", MAIN_BODY_BOILERPLATE);
|
|
fprintf(outf, "%s", MAIN_END_BOILERPLATE);
|
|
break;
|
|
case DEFINES_EVERYTHING:
|
|
fprintf(outf, "%s", test->fragment);
|
|
break;
|
|
default:
|
|
abort();
|
|
|
|
}
|
|
|
|
if (verbose > 1) {
|
|
fseek(outf, 0, SEEK_SET);
|
|
fcopy(outf, stdout);
|
|
}
|
|
|
|
fclose(outf);
|
|
|
|
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) {
|
|
newcmd = realloc(newcmd, strlen(newcmd) + strlen(" ")
|
|
+ strlen(test->link) + 1);
|
|
strcat(newcmd, " ");
|
|
strcat(newcmd, test->link);
|
|
if (verbose > 1)
|
|
printf("Extra link line: %s", newcmd);
|
|
}
|
|
|
|
output = run(newcmd, &status);
|
|
|
|
free(newcmd);
|
|
|
|
if (status != 0 || strstr(output, "warning")) {
|
|
if (verbose)
|
|
printf("Compile %s for %s, status %i: %s\n",
|
|
status ? "fail" : "warning",
|
|
test->name, status, output);
|
|
if ((test->style & EXECUTE) && !(test->style & MAY_NOT_COMPILE))
|
|
c12r_errx(1, "Test for %s did not compile:\n%s",
|
|
test->name, output);
|
|
test->answer = false;
|
|
free(output);
|
|
} else {
|
|
/* Compile succeeded. */
|
|
free(output);
|
|
/* We run INSIDE_MAIN tests for sanity checking. */
|
|
if ((test->style & EXECUTE) || (test->style & INSIDE_MAIN)) {
|
|
output = run("." DIR_SEP OUTPUT_FILE, &status);
|
|
if (!(test->style & EXECUTE) && status != 0)
|
|
c12r_errx(1, "Test for %s failed with %i:\n%s",
|
|
test->name, status, output);
|
|
if (verbose && status)
|
|
printf("%s exited %i\n", test->name, status);
|
|
free(output);
|
|
}
|
|
test->answer = (status == 0);
|
|
}
|
|
test->done = true;
|
|
|
|
if (test->answer && test->overrides) {
|
|
struct test *override = find_test(test->overrides);
|
|
override->done = true;
|
|
override->answer = true;
|
|
}
|
|
return test->answer;
|
|
}
|
|
|
|
int main(int argc, const char *argv[])
|
|
{
|
|
char *cmd;
|
|
unsigned int i;
|
|
const char *default_args[]
|
|
= { "", DEFAULT_COMPILER, DEFAULT_FLAGS, NULL };
|
|
const char *outflag = DEFAULT_OUTPUT_EXE_FLAG;
|
|
const char *configurator_cc = NULL;
|
|
const char *orig_cc;
|
|
|
|
if (argc > 0)
|
|
progname = argv[0];
|
|
|
|
while (argc > 1) {
|
|
if (strcmp(argv[1], "--help") == 0) {
|
|
printf("Usage: configurator [-v] [-O<outflag>] [--configurator-cc=<compiler-for-tests>] [<compiler> <flags>...]\n"
|
|
" <compiler> <flags> will have \"<outflag> <outfile> <infile.c>\" appended\n"
|
|
"Default: %s %s %s\n",
|
|
DEFAULT_COMPILER, DEFAULT_FLAGS,
|
|
DEFAULT_OUTPUT_EXE_FLAG);
|
|
exit(0);
|
|
}
|
|
if (strncmp(argv[1], "-O", 2) == 0) {
|
|
argc--;
|
|
argv++;
|
|
outflag = argv[1] + 2;
|
|
if (!*outflag) {
|
|
fprintf(stderr,
|
|
"%s: option requires an argument -- O\n",
|
|
argv[0]);
|
|
exit(1);
|
|
}
|
|
} else if (strcmp(argv[1], "-v") == 0) {
|
|
argc--;
|
|
argv++;
|
|
verbose++;
|
|
} else if (strcmp(argv[1], "-vv") == 0) {
|
|
argc--;
|
|
argv++;
|
|
verbose += 2;
|
|
} else if (strncmp(argv[1], "--configurator-cc=", 18) == 0) {
|
|
configurator_cc = argv[1] + 18;
|
|
argc--;
|
|
argv++;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (argc == 1)
|
|
argv = default_args;
|
|
|
|
orig_cc = argv[1];
|
|
if (configurator_cc)
|
|
argv[1] = configurator_cc;
|
|
|
|
cmd = connect_args(argv, outflag, OUTPUT_FILE " " INPUT_FILE);
|
|
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++)
|
|
run_test(cmd, &tests[i]);
|
|
free(cmd);
|
|
|
|
remove(OUTPUT_FILE);
|
|
remove(INPUT_FILE);
|
|
|
|
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", orig_cc);
|
|
cmd = connect_args(argv + 1, "", "");
|
|
printf("#define CCAN_CFLAGS \"%s\"\n", cmd);
|
|
free(cmd);
|
|
printf("#define CCAN_OUTPUT_EXE_CFLAG \"%s\"\n\n", outflag);
|
|
/* 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++)
|
|
printf("#define %s %u\n", tests[i].name, tests[i].answer);
|
|
printf("#endif /* CCAN_CONFIG_H */\n");
|
|
return 0;
|
|
}
|
|
|