a22dc0f230
Without the -m64, choosing the x86_64 architecture with a Sourcery external toolchain will result in a 32-bit rootfs. Also simplified the help text to reflect this change. Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be> Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
94 lines
1.8 KiB
C
94 lines
1.8 KiB
C
/**
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* Buildroot wrapper for external toolchains. This simply executes the real
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* toolchain with a number of arguments (sysroot/arch/..) hardcoded,
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* to ensure the external toolchain uses the correct configuration.
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*
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* (C) 2011 Peter Korsgaard <jacmet@sunsite.dk>
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* (C) 2011 Daniel Nyström <daniel.nystrom@timeterminal.se>
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <unistd.h>
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#include <stdlib.h>
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static char path[PATH_MAX] = BR_CROSS_PATH;
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static char *predef_args[] = {
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path,
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"--sysroot", BR_SYSROOT,
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#ifdef BR_ARCH
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"-march=" BR_ARCH,
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#endif /* BR_ARCH */
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#ifdef BR_TUNE
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"-mtune=" BR_TUNE,
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#endif /* BR_TUNE */
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#ifdef BR_CPU
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"-mcpu=" BR_CPU,
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#endif
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#ifdef BR_ABI
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"-mabi=" BR_ABI,
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#endif
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#ifdef BR_SOFTFLOAT
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"-msoft-float",
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#endif /* BR_SOFTFLOAT */
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#ifdef BR_VFPFLOAT
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"-mfpu=vfp",
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#endif /* BR_VFPFLOAT */
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#ifdef BR_64
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"-m64",
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#endif
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#ifdef BR_ADDITIONAL_CFLAGS
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BR_ADDITIONAL_CFLAGS
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#endif
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};
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static const char *get_basename(const char *name)
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{
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const char *base;
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base = strrchr(name, '/');
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if (base)
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base++;
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else
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base = name;
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return base;
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}
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int main(int argc, char **argv)
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{
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char **args, **cur;
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cur = args = malloc(sizeof(predef_args) + (sizeof(char *) * argc));
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if (args == NULL) {
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perror(__FILE__ ": malloc");
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return 2;
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}
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/* start with predefined args */
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memcpy(cur, predef_args, sizeof(predef_args));
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cur += sizeof(predef_args) / sizeof(predef_args[0]);
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/* append forward args */
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memcpy(cur, &argv[1], sizeof(char *) * (argc - 1));
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cur += argc - 1;
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/* finish with NULL termination */
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*cur = NULL;
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strcat(path, get_basename(argv[0]));
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if (execv(path, args))
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perror(path);
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free(args);
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return 2;
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}
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