From 85dc57f6fd2755d8f5b193f369dad35796e764c2 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Fri, 29 Apr 2011 13:09:26 +0200 Subject: Add toolchain wrapper for external toolchains Add a simple toolchain wrapper for external toolchains, which forces the correct sysroot/march/mtune/floating point options needed to use it with buildroot. With this in place the external toolchain behaves similar to the internal ones, and the special handling can be removed. This also means that the toolchain is usable outside buildroot without having to pass any special compiler flags. Also adjust the downloadable external toolchain support to install under HOST_DIR so it can be used after the temporary build files are removed. Signed-off-by: Peter Korsgaard --- .../toolchain-external/ext-toolchain-wrapper.c | 75 ++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 toolchain/toolchain-external/ext-toolchain-wrapper.c (limited to 'toolchain/toolchain-external/ext-toolchain-wrapper.c') diff --git a/toolchain/toolchain-external/ext-toolchain-wrapper.c b/toolchain/toolchain-external/ext-toolchain-wrapper.c new file mode 100644 index 000000000..a485e740d --- /dev/null +++ b/toolchain/toolchain-external/ext-toolchain-wrapper.c @@ -0,0 +1,75 @@ +/** + * Buildroot wrapper for external toolchains. This simply executes the real + * toolchain with a number of arguments (sysroot/arch/..) hardcoded, + * to ensure the external toolchain uses the correct configuration. + * + * (C) 2011 Peter Korsgaard + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include +#include +#include +#include + +#define MAXARGS 1000 + +static char path[PATH_MAX] = BR_CROSS_PATH; + +static char *args[MAXARGS] = { + path, + "--sysroot", BR_SYSROOT, +#ifdef BR_ARCH + "-march=" BR_ARCH, +#endif /* BR_ARCH */ +#ifdef BR_TUNE + "-mtune=" BR_TUNE, +#endif /* BR_TUNE */ +#ifdef BR_ABI + "-mabi=" BR_ABI, +#endif +#ifdef BR_SOFTFLOAT + "-msoft-float", +#endif /* BR_SOFTFLOAT */ +#ifdef BR_VFPFLOAT + "-mfpu=vfp", +#endif /* BR_VFPFLOAT */ +}; + +static const char *get_basename(const char *name) +{ + const char *base; + + base = strrchr(name, '/'); + if (base) + base++; + else + base = name; + + return base; +} + +int main(int argc, char **argv) +{ + int i; + + for (i=0; args[i]; i++); + + if ((argc+i) >= MAXARGS) { + fputs("Too many arguments\n", stderr); + return 1; + } + + /* forward args */ + memcpy(&args[i], &argv[1], sizeof(argv[0]) * (argc - 1)); + + strcat(path, get_basename(argv[0])); + + if (execv(path, args)) + perror(path); + + return 2; +} -- cgit v1.2.3