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BaseTools/tools_def ARM: Disable stack protector with CLANGDWARF 

Clang insists on emitting a movt/movw pair into the function
pro/epilogues to load the stack protector reference value from memory,
and this movt/movw pair may turn out non-consecutively in the
instruction stream.

The resulting symbol reference cannot be fixed up by GenFw, as PE/COFF
always treats movt/movw as a pair, and the ELF-to-PE conversion will
therefore fail.

Just disable the stack protector when using CLANGDWARF.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2024-09-16 18:39:35 +02:00 committed by mergify[bot]
parent 779642283a
commit 170fa8ecd4
1 changed files with 1 additions and 1 deletions
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BaseTools/Conf/tools_def.template
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@ -2096,7 +2096,7 @@ NOOPT_CLANGDWARF_X64_DLINK2_FLAGS = DEF(CLANGDWARF_X64_DLINK2_FLAGS) -O0 -fu
# CLANGDWARF ARM definitions
##################
DEFINE CLANGDWARF_ARM_TARGET = -target arm-linux-gnueabi
DEFINE CLANGDWARF_ARM_CC_FLAGS = DEF(GCC_ARM_CC_FLAGS) DEF(CLANGDWARF_ARM_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES) -mno-movt
DEFINE CLANGDWARF_ARM_CC_FLAGS = DEF(GCC_ARM_CC_FLAGS) DEF(CLANGDWARF_ARM_TARGET) DEF(CLANGDWARF_WARNING_OVERRIDES) -mno-movt -fno-stack-protector
DEFINE CLANGDWARF_ARM_DLINK_FLAGS = DEF(CLANGDWARF_ARM_TARGET) DEF(GCC_ARM_DLINK_FLAGS)
*_CLANGDWARF_ARM_PP_FLAGS = DEF(GCC_PP_FLAGS)