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fix(docker): use BFD linker for ARM64 cross-compilation (Go 1.25 compatibility)

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Go 1.25 defaults to gold linker for ARM64, but clang cross-compiler doesn't
recognize -fuse-ld=gold. Use -extldflags=-fuse-ld=bfd to explicitly select
the BFD linker which is available by default in the build container.

Fixes CI build failure for linux/arm64 platform.
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2026-01-30 02:49:10 +00:00
parent b6caec07b0
commit 03b0dbfb7e
1 changed files with 5 additions and 3 deletions
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@@ -127,7 +127,8 @@ ARG BUILD_DEBUG=0
# Build the Go binary with version information injected via ldflags
# xx-go handles CGO and cross-compilation flags automatically
# Note: Go 1.25 uses gold linker for ARM64; binutils-gold is installed above
# Note: Go 1.25 defaults to gold linker for ARM64, but clang doesn't support -fuse-ld=gold
# We override with -extldflags=-fuse-ld=bfd to use the BFD linker for cross-compilation
# When BUILD_DEBUG=1, we preserve debug symbols (no -s -w) and disable optimizations
# for Delve debugging. Otherwise, strip symbols for smaller production binaries.
RUN --mount=type=cache,target=/root/.cache/go-build \
@@ -136,14 +137,15 @@ RUN --mount=type=cache,target=/root/.cache/go-build \
echo "Building with debug symbols for Delve..."; \
CGO_ENABLED=1 xx-go build \
-gcflags="all=-N -l" \
-ldflags "-X github.com/Wikid82/charon/backend/internal/version.Version=${VERSION} \
-ldflags "-extldflags=-fuse-ld=bfd \
-X github.com/Wikid82/charon/backend/internal/version.Version=${VERSION} \
-X github.com/Wikid82/charon/backend/internal/version.GitCommit=${VCS_REF} \
-X github.com/Wikid82/charon/backend/internal/version.BuildTime=${BUILD_DATE}" \
-o charon ./cmd/api; \
else \
echo "Building optimized production binary..."; \
CGO_ENABLED=1 xx-go build \
-ldflags "-s -w \
-ldflags "-s -w -extldflags=-fuse-ld=bfd \
-X github.com/Wikid82/charon/backend/internal/version.Version=${VERSION} \
-X github.com/Wikid82/charon/backend/internal/version.GitCommit=${VCS_REF} \
-X github.com/Wikid82/charon/backend/internal/version.BuildTime=${BUILD_DATE}" \