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Add reproducible builds support in OHCL-Linux-Kernel #115

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Add reproducible builds support in OHCL-Linux-Kernel #115

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828255c
Enable reproducible kernel builds: Disable Build ID in VDSO
Jan 20, 2026
eef1951
Add NixOS reproducible build infrastructure
Jan 20, 2026
dbf1e24
Add HCL kernel build script for CI pipeline
Jan 28, 2026
13cf677
Improve Nix setup for reliable PATH configuration
Jan 28, 2026
2ac6268
Use pure Nix environment for reproducible kernel builds
Jan 28, 2026
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7 changes: 7 additions & 0 deletions .gitignore
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Expand Up @@ -184,3 +184,10 @@ sphinx_*/

# Rust analyzer configuration
/rust-project.json

# Reproducible build artifacts
/build-repro-1/
/build-repro-2/
/reproducibility-report/
/result
/result-*
6 changes: 4 additions & 2 deletions Makefile
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Expand Up @@ -1041,8 +1041,10 @@ KBUILD_AFLAGS += $(KAFLAGS)
KBUILD_CFLAGS += $(KCFLAGS)
KBUILD_RUSTFLAGS += $(KRUSTFLAGS)

KBUILD_LDFLAGS_MODULE += --build-id=sha1
LDFLAGS_vmlinux += --build-id=sha1
# Allow build-id to be overridden via KBUILD_BUILD_ID (e.g., for reproducible builds)
KBUILD_BUILD_ID ?= sha1
KBUILD_LDFLAGS_MODULE += --build-id=$(KBUILD_BUILD_ID)
LDFLAGS_vmlinux += --build-id=$(KBUILD_BUILD_ID)

KBUILD_LDFLAGS += -z noexecstack
ifeq ($(CONFIG_LD_IS_BFD),y)
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