diff mbox series

kbuild: Use --strip-unneeded with INSTALL_MOD_STRIP

Message ID 20250122-strip_unneeded-v1-1-ac29a726cb41@rivosinc.com (mailing list archive)
State New
Headers show
Series kbuild: Use --strip-unneeded with INSTALL_MOD_STRIP | expand

Checks

Context Check Description
conchuod/vmtest-for-next-PR success PR summary
conchuod/patch-1-test-1 success .github/scripts/patches/tests/build_rv32_defconfig.sh took 120.18s
conchuod/patch-1-test-2 success .github/scripts/patches/tests/build_rv64_clang_allmodconfig.sh took 1071.31s
conchuod/patch-1-test-3 success .github/scripts/patches/tests/build_rv64_gcc_allmodconfig.sh took 1307.00s
conchuod/patch-1-test-4 success .github/scripts/patches/tests/build_rv64_nommu_k210_defconfig.sh took 20.65s
conchuod/patch-1-test-5 success .github/scripts/patches/tests/build_rv64_nommu_virt_defconfig.sh took 22.21s
conchuod/patch-1-test-6 success .github/scripts/patches/tests/checkpatch.sh took 0.42s
conchuod/patch-1-test-7 success .github/scripts/patches/tests/dtb_warn_rv64.sh took 43.31s
conchuod/patch-1-test-8 success .github/scripts/patches/tests/header_inline.sh took 0.01s
conchuod/patch-1-test-9 success .github/scripts/patches/tests/kdoc.sh took 0.60s
conchuod/patch-1-test-10 success .github/scripts/patches/tests/module_param.sh took 0.01s
conchuod/patch-1-test-11 success .github/scripts/patches/tests/verify_fixes.sh took 0.00s
conchuod/patch-1-test-12 success .github/scripts/patches/tests/verify_signedoff.sh took 0.06s
bjorn/build-rv32-defconfig success build-rv32-defconfig
bjorn/build-rv64-clang-allmodconfig success build-rv64-clang-allmodconfig
bjorn/build-rv64-gcc-allmodconfig success build-rv64-gcc-allmodconfig
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bjorn/build-rv64-nommu-k210-virt success build-rv64-nommu-k210-virt
bjorn/checkpatch success checkpatch
bjorn/dtb-warn-rv64 success dtb-warn-rv64
bjorn/header-inline success header-inline
bjorn/kdoc success kdoc
bjorn/module-param success module-param
bjorn/verify-fixes success verify-fixes
bjorn/verify-signedoff success verify-signedoff

Commit Message

Charlie Jenkins Jan. 23, 2025, 3:17 a.m. UTC
On riscv, kernel modules end up with a significant number of local
symbols. This becomes apparent when compiling modules with debug symbols
enabled. Using amdgpu.ko as an example of a large module, on riscv the
size is 754MB (no stripping), 53MB (--strip-debug), and 21MB
(--strip-unneeded). ON x86, amdgpu.ko is 482MB (no stripping), 21MB
(--strip-debug), and 20MB (--strip-unneeded).

Use --strip-unneeded instead of --strip-debug to strip modules so
decrease the size of the resulting modules. This is particularly
relevant for riscv, but also marginally aids other architectures.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
---
 scripts/Makefile.modinst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)


---
base-commit: ffd294d346d185b70e28b1a28abe367bbfe53c04
change-id: 20250122-strip_unneeded-cab729310056
diff mbox series

Patch

diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index f97c9926ed31b2b14601ff7773a2ea48b225628b..c22f35f6b9db3cac3923b9e787b219f752570642 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -80,7 +80,7 @@  quiet_cmd_install = INSTALL $@
 ifdef INSTALL_MOD_STRIP
 
 ifeq ($(INSTALL_MOD_STRIP),1)
-strip-option := --strip-debug
+strip-option := --strip-unneeded
 else
 strip-option := $(INSTALL_MOD_STRIP)
 endif