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Fix LTO with secp256k1's C code.
author
Matt Corallo
<git@bluematt.me>
Thu, 22 Apr 2021 02:36:30 +0000
(
02:36
+0000)
committer
Matt Corallo
<git@bluematt.me>
Thu, 22 Apr 2021 02:43:03 +0000
(
02:43
+0000)
genbindings.sh
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diff --git
a/genbindings.sh
b/genbindings.sh
index 7a876312ae2cc818533225ca81326e8f48adc526..8fd11889910401d21b01cbd6d81393a36ef34495 100755
(executable)
--- a/
genbindings.sh
+++ b/
genbindings.sh
@@
-271,7
+271,11
@@
if [ "$HOST_PLATFORM" != "host: x86_64-apple-darwin" -a "$CLANGPP" != "" ]; then
# or Ubuntu packages). This should work fine on Distros which do more involved
# packaging than simply shipping the rustup binaries (eg Debian should Just Work
# here).
# or Ubuntu packages). This should work fine on Distros which do more involved
# packaging than simply shipping the rustup binaries (eg Debian should Just Work
# here).
- export CFLAGS="$CFLAGS -flto"
+ # The cc-rs crate tries to force -fdata-sections and -ffunction-sections on, which
+ # breaks -fembed-bitcode, so we turn off cc-rs' default flags and specify exactly
+ # what we want here.
+ export CFLAGS="$CFLAGS -O3 -fPIC -fembed-bitcode"
+ export CRATE_CC_NO_DEFAULTS=true
# Rust doesn't recognize CFLAGS changes, so we need to clean build artifacts
cargo clean --release
CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C linker-plugin-lto -C lto -C link-arg=-fuse-ld=lld
# Rust doesn't recognize CFLAGS changes, so we need to clean build artifacts
cargo clean --release
CARGO_PROFILE_RELEASE_LTO=true cargo rustc -v --release -- -C linker-plugin-lto -C lto -C link-arg=-fuse-ld=lld