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toolchain-external wrapper: don't pass march/mcpu if mtune is on cmdline

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Before commit 5715d2dcf48a39c16a3f3e41c97109613fed121d, the external
toolchain wrapper would not pass its own march/mcpu/mtune flags to the real
compiler if at least one of them was passed on the wrapper command-line.

The mentioned commit intended to remove the passing of an mtune parameter
coming from Buildroot, which was always empty after some other refactoring,
but the changes have the side-effect that march/mcpu is now also passed when
mtune is already given on the command-line. In that case, only mtune should
be passed to the real compiler.

Restore part of the original toolchain wrapper code to check the presence of
mtune on the command-line.

Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas De Schampheleire 2015-07-26 12:53:07 +02:00 committed by Thomas Petazzoni
parent 3dea23cf53
commit b62cb78d6f
1 changed files with 3 additions and 2 deletions
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5
toolchain/toolchain-external/ext-toolchain-wrapper.c
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@ -177,11 +177,12 @@ int main(int argc, char **argv)
#if defined(BR_ARCH) || \ #if defined(BR_ARCH) || \
defined(BR_CPU) defined(BR_CPU)
/* Add our -march/cpu/abi flags, but only if none are /* Add our -march/cpu flags, but only if none of
* already specified on the commandline * -march/mtune/mcpu are already specified on the commandline
*/ */
for (i = 1; i < argc; i++) { for (i = 1; i < argc; i++) {
if (!strncmp(argv[i], "-march=", strlen("-march=")) || if (!strncmp(argv[i], "-march=", strlen("-march=")) ||
!strncmp(argv[i], "-mtune=", strlen("-mtune=")) ||
!strncmp(argv[i], "-mcpu=", strlen("-mcpu=" ))) !strncmp(argv[i], "-mcpu=", strlen("-mcpu=" )))
break; break;
} }