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| author | Ard Biesheuvel <ardb@kernel.org> | 2024-07-28 18:50:09 +0200 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-07-28 20:45:13 +0000 |
| commit | ecb1d67775a6dcaa9a0deb4869ca60e250987e91 (patch) | |
| tree | a36594bc7e1b170479c76ae63d93826158ab92b7 | |
| parent | b7f963d570ec5e27bc04d546372c6fc47e4f3b17 (diff) | |
| download | edk2-ecb1d67775a6dcaa9a0deb4869ca60e250987e91.tar.gz edk2-ecb1d67775a6dcaa9a0deb4869ca60e250987e91.tar.bz2 edk2-ecb1d67775a6dcaa9a0deb4869ca60e250987e91.zip | |
BaseTools/tools_def CLANGDWARF: Always use -Oz in RELEASE mode
GCC5 and CLANGDWARF for IA32/X64 use -Os or -Oz as the optimization
level, which agressively optimizes for the smallest possible object
code.
On AARCH64, RISCV64 and ARM, we use -O3 instead, which results in
considerable image bloat, to the point where the Raspberry Pi 4 build in
edk2-platforms does not even build with -D SECURE_BOOT_ENABLE.
So let's align CLANGDWARF across all architectures, and use -Oz
throughout.
Note that O3 is still used for the linker, which build in LTO mode and
therefore performs some code generation as well. This is deliberate: LLD
does not support the Os/Oz optimization levels at all, and using Oz for
the compile pass is sufficient to reduce the code size substantially.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
| -rwxr-xr-x | BaseTools/Conf/tools_def.template | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/BaseTools/Conf/tools_def.template b/BaseTools/Conf/tools_def.template index 994cae2588..13cf0f91b6 100755 --- a/BaseTools/Conf/tools_def.template +++ b/BaseTools/Conf/tools_def.template @@ -2130,7 +2130,7 @@ DEFINE CLANGDWARF_ARM_DLINK_FLAGS = DEF(CLANGDWARF_ARM_TARGET) DEF(GCC_ARM_DLI DEBUG_CLANGDWARF_ARM_DLINK_FLAGS = DEF(CLANGDWARF_ARM_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld -L$(WORKSPACE)/BaseTools/Bin/GccLto -llto-arm -Wl,-plugin-opt=-pass-through=-llto-arm -Wl,--no-pie,--no-relax
NOOPT_CLANGDWARF_ARM_CC_FLAGS = DEF(CLANGDWARF_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -O0
NOOPT_CLANGDWARF_ARM_DLINK_FLAGS = DEF(CLANGDWARF_ARM_DLINK_FLAGS) -fuse-ld=lld -Wl,--no-pie,--no-relax
-RELEASE_CLANGDWARF_ARM_CC_FLAGS = DEF(CLANGDWARF_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
+RELEASE_CLANGDWARF_ARM_CC_FLAGS = DEF(CLANGDWARF_ARM_CC_FLAGS) $(PLATFORM_FLAGS) -flto -Oz
RELEASE_CLANGDWARF_ARM_DLINK_FLAGS = DEF(CLANGDWARF_ARM_DLINK_FLAGS) -flto -Wl,-O3 -fuse-ld=lld -L$(WORKSPACE)/BaseTools/Bin/GccLto -llto-arm -Wl,-plugin-opt=-pass-through=-llto-arm -Wl,--no-pie,--no-relax
##################
@@ -2176,7 +2176,7 @@ DEFINE CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_TARGET) DEF(GCC_ DEBUG_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld -L$(WORKSPACE)/BaseTools/Bin/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-relax
NOOPT_CLANGDWARF_AARCH64_CC_FLAGS = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -O0
NOOPT_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -fuse-ld=lld -Wl,--no-pie,--no-relax
-RELEASE_CLANGDWARF_AARCH64_CC_FLAGS = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
+RELEASE_CLANGDWARF_AARCH64_CC_FLAGS = DEF(CLANGDWARF_AARCH64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -Oz
RELEASE_CLANGDWARF_AARCH64_DLINK_FLAGS = DEF(CLANGDWARF_AARCH64_DLINK_FLAGS) -flto -Wl,-O3 -fuse-ld=lld -L$(WORKSPACE)/BaseTools/Bin/GccLto -llto-aarch64 -Wl,-plugin-opt=-pass-through=-llto-aarch64 -Wl,--no-pie,--no-relax
##################
@@ -2228,7 +2228,7 @@ DEFINE CLANGDWARF_RISCV64_DLINK_FLAGS = DEF(CLANGDWARF_RISCV64_TARGET) DEF DEBUG_CLANGDWARF_RISCV64_DLINK_FLAGS = DEF(CLANGDWARF_RISCV64_DLINK_FLAGS) -flto -Wl,-O1 -fuse-ld=lld -Wl,--no-pie,--no-relax
NOOPT_CLANGDWARF_RISCV64_CC_FLAGS = DEF(CLANGDWARF_RISCV64_CC_FLAGS) $(PLATFORM_FLAGS) -O0
NOOPT_CLANGDWARF_RISCV64_DLINK_FLAGS = DEF(CLANGDWARF_RISCV64_DLINK_FLAGS) -fuse-ld=lld -Wl,--no-pie,--no-relax
-RELEASE_CLANGDWARF_RISCV64_CC_FLAGS = DEF(CLANGDWARF_RISCV64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -O3
+RELEASE_CLANGDWARF_RISCV64_CC_FLAGS = DEF(CLANGDWARF_RISCV64_CC_FLAGS) $(PLATFORM_FLAGS) -flto -Oz
RELEASE_CLANGDWARF_RISCV64_DLINK_FLAGS = DEF(CLANGDWARF_RISCV64_DLINK_FLAGS) -flto -Wl,-O3 -fuse-ld=lld -Wl,--no-pie,--no-relax
#
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