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[Docker] Extract duplicated compiler wrapper setup into shared script #4026

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[Docker] Extract duplicated compiler wrapper setup into shared script #4026

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f8c14e1
[Docker] Extract duplicated compiler wrapper setup into shared script
Vi-shub Mar 22, 2026
5c90465
[Docker] Extract duplicated compiler wrapper
Vi-shub Mar 22, 2026
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4 changes: 2 additions & 2 deletions build_openroad.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -67,7 +67,7 @@ Options:
-n, --nice Nice all jobs. Use all cpus unless --threads is
also given, then use N threads.

--yosys-args-overwrite Do not use default flags set by this scrip during
--yosys-args-overwrite Do not use default flags set by this script during
Yosys compilation.

--yosys-args STRING Additional compilation flags for Yosys compilation.
Expand All @@ -76,7 +76,7 @@ Options:
to the Verific source folder.

--openroad-args-overwrite
Do not use default flags set by this scrip during
Do not use default flags set by this script during
OpenROAD app compilation.

--openroad-args STRING Additional compilation flags for OpenROAD app
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12 changes: 3 additions & 9 deletions docker/Dockerfile.builder
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Expand Up @@ -15,15 +15,9 @@ COPY --link build_openroad.sh build_openroad.sh

FROM orfs-base AS orfs-builder-base

# Inject compiler wrapper scripts that append the macros
RUN mkdir -p /usr/local/bin/wrapped-cc && \
echo '#!/bin/sh' > /usr/local/bin/wrapped-cc/gcc && \
echo 'exec /usr/bin/gcc -D__TIME__="\"0\"" -D__DATE__="\"0\"" -D__TIMESTAMP__="\"0\"" -Wno-builtin-macro-redefined "$@"' >> /usr/local/bin/wrapped-cc/gcc && \
chmod +x /usr/local/bin/wrapped-cc/gcc && \
ln -sf /usr/local/bin/wrapped-cc/gcc /usr/local/bin/wrapped-cc/cc && \
echo '#!/bin/sh' > /usr/local/bin/wrapped-cc/g++ && \
echo 'exec /usr/bin/g++ -D__TIME__="\"0\"" -D__DATE__="\"0\"" -D__TIMESTAMP__="\"0\"" -Wno-builtin-macro-redefined "$@"' >> /usr/local/bin/wrapped-cc/g++ && \
chmod +x /usr/local/bin/wrapped-cc/g++
# Add compiler wrapper scripts for reproducible builds
COPY --link etc/setup_compiler_wrappers.sh /tmp/
RUN sh /tmp/setup_compiler_wrappers.sh && rm /tmp/setup_compiler_wrappers.sh

# Prepend wrapper directory to PATH so they override system compilers
ENV PATH="/usr/local/bin/wrapped-cc:$PATH"
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13 changes: 3 additions & 10 deletions docker/Dockerfile.dev
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Expand Up @@ -15,16 +15,9 @@ COPY InstallerOpenROAD.sh \
ARG options=""
ARG constantBuildDir="-constant-build-dir"

# add compiler wrapper scripts
# inject the macro definitions during compilation only
RUN mkdir -p /usr/local/bin/wrapped-cc && \
echo '#!/bin/sh' > /usr/local/bin/wrapped-cc/gcc && \
echo 'exec /usr/bin/gcc -D__TIME__="\"0\"" -D__DATE__="\"0\"" -D__TIMESTAMP__="\"0\"" -Wno-builtin-macro-redefined "$@"' >> /usr/local/bin/wrapped-cc/gcc && \
chmod +x /usr/local/bin/wrapped-cc/gcc && \
ln -sf /usr/local/bin/wrapped-cc/gcc /usr/local/bin/wrapped-cc/cc && \
echo '#!/bin/sh' > /usr/local/bin/wrapped-cc/g++ && \
echo 'exec /usr/bin/g++ -D__TIME__="\"0\"" -D__DATE__="\"0\"" -D__TIMESTAMP__="\"0\"" -Wno-builtin-macro-redefined "$@"' >> /usr/local/bin/wrapped-cc/g++ && \
chmod +x /usr/local/bin/wrapped-cc/g++
# add compiler wrapper scripts for reproducible builds
COPY setup_compiler_wrappers.sh /tmp/
RUN sh /tmp/setup_compiler_wrappers.sh && rm /tmp/setup_compiler_wrappers.sh

ENV PATH="/usr/local/bin/wrapped-cc:$PATH"

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27 changes: 27 additions & 0 deletions etc/setup_compiler_wrappers.sh
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@@ -0,0 +1,27 @@
#!/bin/sh
# setup_compiler_wrappers.sh
# Creates compiler wrapper scripts for reproducible builds by overriding
# __TIME__, __DATE__, and __TIMESTAMP__ macros with constant values.
# This ensures Docker image builds are deterministic regardless of build time.

set -e

WRAPPER_DIR="/usr/local/bin/wrapped-cc"
mkdir -p "$WRAPPER_DIR"

# GCC wrapper
cat > "$WRAPPER_DIR/gcc" << 'WRAPPER'
#!/bin/sh
exec /usr/bin/gcc -D__TIME__="\"0\"" -D__DATE__="\"0\"" -D__TIMESTAMP__="\"0\"" -Wno-builtin-macro-redefined "$@"
WRAPPER
chmod +x "$WRAPPER_DIR/gcc"

# Symlink cc to gcc wrapper
ln -sf "$WRAPPER_DIR/gcc" "$WRAPPER_DIR/cc"

# G++ wrapper
cat > "$WRAPPER_DIR/g++" << 'WRAPPER'
#!/bin/sh
exec /usr/bin/g++ -D__TIME__="\"0\"" -D__DATE__="\"0\"" -D__TIMESTAMP__="\"0\"" -Wno-builtin-macro-redefined "$@"
WRAPPER
chmod +x "$WRAPPER_DIR/g++"