diff options
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/toolchain-external/toolchain-external.mk | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk index 78138d370a..612c49d2e1 100644 --- a/toolchain/toolchain-external/toolchain-external.mk +++ b/toolchain/toolchain-external/toolchain-external.mk @@ -647,12 +647,20 @@ endif # Build toolchain wrapper for preprocessor, C and C++ compiler and setup # symlinks for everything else. Skip gdb symlink when we are building our # own gdb to prevent two gdb's in output/host/usr/bin. +# When the link-time-optimazation flag '-flto' is used, then the compiler +# and binutils have to support lto. ar/ranlib need to be called with the +# lto plugin. The wrappers *-gcc-ar and *-gcc-ranlib provided by GCC could +# be used as drop-ins for ar/runlib when Makefiles are used which do not +# pass the lto arguments. define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER $(Q)$(call MESSAGE,"Building ext-toolchain wrapper") mkdir -p $(HOST_DIR)/usr/bin; cd $(HOST_DIR)/usr/bin; \ for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \ base=$${i##*/}; \ case "$$base" in \ + *-ar|*-ranlib|*-nm) \ + ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \ + ;; \ *cc|*cc-*|*++|*++-*|*cpp) \ ln -sf ext-toolchain-wrapper $$base; \ ;; \ |
