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update 2026-10-20 02:12:23

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action committed 2026-10-20 02:12:23 +08:00
1 parent 313fe55d56
commit f322ead2a4
28 files changed
+1625 -241
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vmlinux-btf/.github/workflows/build.yml
Vendored
+8 -1
View File
@@ -131,7 +131,7 @@ jobs:
rm -rf /etc/apt/sources.list.d/*
fi
apt-get update -o Acquire::Check-Valid-Until=false || apt-get update
apt-get install -y --no-install-recommends dwarves || apt-get install -y dwarves || apt-get install -y pahole
apt-get install -y --no-install-recommends dwarves llvm || apt-get install -y dwarves llvm || apt-get install -y pahole
rm -rf /var/lib/apt/lists/*
elif command -v apk >/dev/null 2>&1; then
apk add --no-cache dwarves
@@ -149,6 +149,13 @@ jobs:
mkdir -p /builder/staging_dir/host/bin
ln -sf "$pahole_bin" /builder/staging_dir/host/bin/pahole
# Ensure real llvm-objcopy is accessible within OpenWrt staging_dir host tools
llvm_objcopy_bin="$(command -v llvm-objcopy || find /usr/bin -name 'llvm-objcopy*' 2>/dev/null | head -n 1 || true)"
if [ -n "$llvm_objcopy_bin" ]; then
ln -sf "$llvm_objcopy_bin" /builder/staging_dir/host/bin/llvm-objcopy
echo "Using llvm-objcopy: $llvm_objcopy_bin"
fi
# Fix permissions and compile as buildbot user
chown -R 1000:1000 /builder /artifacts
su -s /bin/bash buildbot -c '\''
vmlinux-btf/Makefile
+7 -15
View File
@@ -35,14 +35,11 @@ define Package/vmlinux-btf/prerm
#!/bin/sh
[ -n "$${IPKG_INSTROOT}" ] || rm -f /usr/lib/debug/boot/vmlinux-$$(uname -r)
endef
# Toolchain and helpers
BTF_CC ?= $(if $(TARGET_CC_NOCACHE),$(TARGET_CC_NOCACHE),$(TARGET_CROSS)gcc)
BTF_PAHOLE ?= $(firstword \
$(wildcard $(STAGING_DIR_HOST)/bin/pahole /usr/bin/pahole /usr/local/bin/pahole) \
$(shell command -v pahole 2>/dev/null) \
pahole)
PAHOLE_JOBS := $(if $(filter -j%,$(PKG_JOBS)),$(patsubst -j%,%,$(filter -j%,$(PKG_JOBS))),1)
KERNEL_RELEASE := $(if $(wildcard $(LINUX_DIR)/include/config/kernel.release),$(shell cat $(LINUX_DIR)/include/config/kernel.release),$(LINUX_VERSION))
BTF_CFLAGS := \
@@ -81,21 +78,16 @@ define Build/Compile
exit 1; \
fi
# Compile BTF stub sources
$(BTF_CC) $(BTF_CFLAGS) -c $(PKG_BUILD_DIR)/shadow_btf_core.c -o $(PKG_BUILD_DIR)/shadow_btf_core.o
-$(BTF_CC) $(BTF_CFLAGS) -c $(PKG_BUILD_DIR)/shadow_btf_modules.c -o $(PKG_BUILD_DIR)/shadow_btf_modules.o 2>/dev/null
-$(BTF_CC) $(BTF_CFLAGS) -c $(PKG_BUILD_DIR)/shadow_btf_private.c -o $(PKG_BUILD_DIR)/shadow_btf_private.o 2>/dev/null
# Link compiled objects into a single relocatable object
objs="$(PKG_BUILD_DIR)/shadow_btf_core.o"; \
[ ! -f "$(PKG_BUILD_DIR)/shadow_btf_modules.o" ] || objs="$$objs $(PKG_BUILD_DIR)/shadow_btf_modules.o"; \
[ ! -f "$(PKG_BUILD_DIR)/shadow_btf_private.o" ] || objs="$$objs $(PKG_BUILD_DIR)/shadow_btf_private.o"; \
$(TARGET_CROSS)ld -r -o $(PKG_BUILD_DIR)/shadow_btf.o $$objs
# Extract detached BTF
$(BTF_PAHOLE) --jobs=$(PAHOLE_JOBS) \
--btf_encode_detached=$(PKG_BUILD_DIR)/vmlinux-btf \
$(PKG_BUILD_DIR)/shadow_btf.o
$(TARGET_CROSS)ld -r -o $(PKG_BUILD_DIR)/shadow_btf.o $(PKG_BUILD_DIR)/shadow_btf_*.o
if $(BTF_PAHOLE) --help 2>&1 | grep -q -- '--btf_encode_detached'; then \
$(BTF_PAHOLE) --btf_encode_detached=$(PKG_BUILD_DIR)/vmlinux-btf $(PKG_BUILD_DIR)/shadow_btf.o; \
else \
$(BTF_PAHOLE) -J $(PKG_BUILD_DIR)/shadow_btf.o && \
$(TARGET_CROSS)objcopy --dump-section .BTF=$(PKG_BUILD_DIR)/vmlinux-btf $(PKG_BUILD_DIR)/shadow_btf.o; \
fi
test -s $(PKG_BUILD_DIR)/vmlinux-btf
$(BTF_PAHOLE) -C sk_buff $(PKG_BUILD_DIR)/shadow_btf.o >/dev/null
endef