[Buildroot] [PATCH] toolchain-wrapper: fix breakage after host/usr removal
Arnout Vandecappelle (Essensium/Mind)
arnout at mind.be
Fri Jul 7 07:43:30 UTC 2017
The toolchain wrapper, when called through PATH, strips the last three
levels of /proc/self/exe to find HOST_DIR. However, after the host/usr
removal, this should be just two levels.
The toolchain wrapper has different logic for when it is called with a
full path (i.e. $HOST_DIR/usr/bin/arm-linux-gcc) then when it is called
through the PATH (i.e. just arm-linux-gcc). The latter is never used
internally in Buildroot, that's why this wasn't discovered through
testing.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout at mind.be>
Cc: Mark Jackson <mpfj-list at newflow.co.uk>
---
Sorry for the breakage :-)
Note to self: add a test for calling the toolchain through PATH.
To fix an existing toolchain without rebuilding:
make host-gcc-final-rebuild
(or make host-toolchain-external-custom-rebuild if that's what you're
using).
---
toolchain/toolchain-wrapper.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/toolchain/toolchain-wrapper.c b/toolchain/toolchain-wrapper.c
index 3a4455ff82..a73e6d6f94 100644
--- a/toolchain/toolchain-wrapper.c
+++ b/toolchain/toolchain-wrapper.c
@@ -192,7 +192,7 @@ int main(int argc, char **argv)
for (i = ret; i > 0; i--) {
if (absbasedir[i] == '/') {
absbasedir[i] = '\0';
- if (++count == 3)
+ if (++count == 2)
break;
}
}
--
2.13.2
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