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Diffstat (limited to '0008-kbuild-lto-limit-inlining.patch')
| -rw-r--r-- | 0008-kbuild-lto-limit-inlining.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/0008-kbuild-lto-limit-inlining.patch b/0008-kbuild-lto-limit-inlining.patch deleted file mode 100644 index fc91b82c7380..000000000000 --- a/0008-kbuild-lto-limit-inlining.patch +++ /dev/null @@ -1,38 +0,0 @@ -From ba6bd6d4f05dc173ddcf5ff7365a7964c7769349 Mon Sep 17 00:00:00 2001 -From: Sami Tolvanen <samitolvanen@google.com> -Date: Wed, 4 Dec 2019 15:57:39 -0800 -Subject: [PATCH 08/24] kbuild: lto: limit inlining - -This change limits function inlining across translation unit boundaries -in order to reduce the binary size with LTO. The -import-instr-limit -flag defines a size limit, as the number of LLVM IR instructions, for -importing functions from other TUs, defaulting to 100. - -Based on testing with arm64 defconfig, we found that a limit of 5 is a -reasonable compromise between performance and binary size, reducing the -size of a stripped vmlinux by 11%. - -Suggested-by: George Burgess IV <gbiv@google.com> -Signed-off-by: Sami Tolvanen <samitolvanen@google.com> ---- - Makefile | 4 ++++ - 1 file changed, 4 insertions(+) - -diff --git a/Makefile b/Makefile -index 19e2bf26c52c..498d281aa318 100644 ---- a/Makefile -+++ b/Makefile -@@ -895,6 +895,10 @@ else - CC_FLAGS_LTO_CLANG := -flto - endif - CC_FLAGS_LTO_CLANG += -fvisibility=default -+ -+# Limit inlining across translation units to reduce binary size -+LD_FLAGS_LTO_CLANG := -mllvm -import-instr-limit=5 -+KBUILD_LDFLAGS += $(LD_FLAGS_LTO_CLANG) - endif - - ifdef CONFIG_LTO --- -2.28.0 - |