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Merge pull request #7684 from daverodgman/armclang-fix-2.28

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2.28 backport - Fix armclang compile fail
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Gilles Peskine 2023-06-08 14:36:21 +02:00 committed by GitHub
commit 5b7a4b4bf0
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5
ChangeLog.d/armclang-compile-fix.txt Normal file
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@ -0,0 +1,5 @@
Bugfix
* Fix clang and armclang compilation error when targeting certain Arm
M-class CPUs (Cortex-M0, Cortex-M0+, Cortex-M1, Cortex-M23,
SecurCore SC000). Fixes #1077.

11
include/mbedtls/bn_mul.h
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@ -677,6 +677,15 @@
#if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7) #if defined(__arm__) && !defined(MULADDC_CANNOT_USE_R7)
#if defined(__thumb__) && !defined(__thumb2__) #if defined(__thumb__) && !defined(__thumb2__)
#if !defined(__ARMCC_VERSION) && !defined(__clang__) \
&& !defined(__llvm__) && !defined(__INTEL_COMPILER)
/*
* Thumb 1 ISA. This code path has only been tested successfully on gcc;
* it does not compile on clang or armclang.
*
* Other compilers which define __GNUC__ may not work. The above macro
* attempts to exclude these untested compilers.
*/
#define MULADDC_INIT \ #define MULADDC_INIT \
asm( \ asm( \
@ -731,6 +740,8 @@
"r6", "r7", "r8", "r9", "cc" \ "r6", "r7", "r8", "r9", "cc" \
); );
#endif /* Compiler is gcc */
#elif (__ARM_ARCH >= 6) && \ #elif (__ARM_ARCH >= 6) && \
defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1) defined (__ARM_FEATURE_DSP) && (__ARM_FEATURE_DSP == 1)

28
tests/scripts/all.sh
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@ -3156,6 +3156,25 @@ component_build_arm_none_eabi_gcc_no_64bit_multiplication () {
not grep __aeabi_lmul library/*.o not grep __aeabi_lmul library/*.o
} }
component_build_arm_clang_thumb () {
# ~ 30s
scripts/config.py baremetal
msg "build: clang thumb 2, make"
make clean
make CC="clang" CFLAGS='-std=c99 -Werror -Os --target=arm-linux-gnueabihf -march=armv7-m -mthumb' lib
# Some Thumb 1 asm is sensitive to optimisation level, so test both -O0 and -Os
msg "build: clang thumb 1 -O0, make"
make clean
make CC="clang" CFLAGS='-std=c99 -Werror -O0 --target=arm-linux-gnueabihf -mcpu=arm1136j-s -mthumb' lib
msg "build: clang thumb 1 -Os, make"
make clean
make CC="clang" CFLAGS='-std=c99 -Werror -Os --target=arm-linux-gnueabihf -mcpu=arm1136j-s -mthumb' lib
}
component_build_armcc () { component_build_armcc () {
msg "build: ARM Compiler 5" msg "build: ARM Compiler 5"
scripts/config.py baremetal scripts/config.py baremetal
@ -3166,6 +3185,8 @@ component_build_armcc () {
make clean make clean
# Compile mostly with -O1 since some Arm inline assembly is disabled for -O0.
# ARM Compiler 6 - Target ARMv7-A # ARM Compiler 6 - Target ARMv7-A
armc6_build_test "--target=arm-arm-none-eabi -march=armv7-a" armc6_build_test "--target=arm-arm-none-eabi -march=armv7-a"
@ -3180,7 +3201,14 @@ component_build_armcc () {
# ARM Compiler 6 - Target ARMv8-A - AArch64 # ARM Compiler 6 - Target ARMv8-A - AArch64
armc6_build_test "--target=aarch64-arm-none-eabi -march=armv8.2-a" armc6_build_test "--target=aarch64-arm-none-eabi -march=armv8.2-a"
# ARM Compiler 6 - Target Cortex-M0 - no optimisation
armc6_build_test "-O0 --target=arm-arm-none-eabi -mcpu=cortex-m0"
# ARM Compiler 6 - Target Cortex-M0
armc6_build_test "-Os --target=arm-arm-none-eabi -mcpu=cortex-m0"
} }
support_build_armcc () { support_build_armcc () {
armc5_cc="$ARMC5_BIN_DIR/armcc" armc5_cc="$ARMC5_BIN_DIR/armcc"
armc6_cc="$ARMC6_BIN_DIR/armclang" armc6_cc="$ARMC6_BIN_DIR/armclang"