https://github.com/PiJoules created
https://github.com/llvm/llvm-project/pull/100656
These are needed for cortex-m33. Ideally in the future we'd have separate
multilibs for different ABI configs and we wouldn't need to explicitly set
cortex-m33 manually. The driver should handle it.
>From 8b836dd8223419a2155c454ee3fc6c91596e3931 Mon Sep 17 00:00:00 2001
From: Leonard Chan <leonardc...@google.com>
Date: Thu, 25 Jul 2024 14:20:21 -0700
Subject: [PATCH] [Fuchsia] Apply armv8m flags for runtimes
These are needed for cortex-m33. Ideally in the future we'd have
separate multilibs for different ABI configs and we wouldn't need to
explicitly set cortex-m33 manually. The driver should handle it.
---
clang/cmake/caches/Fuchsia-stage2.cmake | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/clang/cmake/caches/Fuchsia-stage2.cmake
b/clang/cmake/caches/Fuchsia-stage2.cmake
index 8e0835cb3158f..75ceb799352f9 100644
--- a/clang/cmake/caches/Fuchsia-stage2.cmake
+++ b/clang/cmake/caches/Fuchsia-stage2.cmake
@@ -309,7 +309,7 @@ foreach(target
armv6m-unknown-eabi;armv7m-unknown-eabi;armv8m.main-unknown-eabi)
foreach(lang C;CXX;ASM)
set(BUILTINS_${target}_CMAKE_${lang}_local_flags "--target=${target}
-mthumb")
if(${target} STREQUAL "armv8m.main-unknown-eabi")
- set(BUILTINS_${target}_CMAKE_${lang}_local_flags
"${BUILTINS_${target}_CMAKE_${lang}_local_flags} -mfloat-abi=hard
-march=armv8m.main+fp+dsp -mcpu=cortex-m33" CACHE STRING "")
+ set(BUILTINS_${target}_CMAKE_${lang}_local_flags
"${BUILTINS_${target}_CMAKE_${lang}_local_flags} -mfloat-abi=softfp
-march=armv8m.main+fp+dsp -mcpu=cortex-m33" CACHE STRING "")
endif()
set(BUILTINS_${target}_CMAKE_${lang}_FLAGS
"${BUILTINS_${target}_CMAKE_${lang}_local_flags}" CACHE STRING "")
endforeach()
@@ -327,7 +327,11 @@ foreach(target
armv6m-unknown-eabi;armv7m-unknown-eabi;armv8m.main-unknown-eabi)
foreach(lang C;CXX;ASM)
# TODO: The preprocessor defines workaround various issues in libc and
libc++ integration.
# These should be addressed and removed over time.
- set(RUNTIMES_${target}_CMAKE_${lang}_FLAGS "--target=${target} -mthumb
-Wno-atomic-alignment \"-Dvfprintf(stream, format, vlist)=vprintf(format,
vlist)\" \"-Dfprintf(stream, format, ...)=printf(format)\" \"-Dtimeval=struct
timeval{int tv_sec; int tv_usec;}\" \"-Dgettimeofday(tv, tz)\"
-D_LIBCPP_PRINT=1" CACHE STRING "")
+ set(RUNTIMES_${target}_CMAKE_${lang}_local_flags "--target=${target}
-mthumb -Wno-atomic-alignment \"-Dvfprintf(stream, format,
vlist)=vprintf(format, vlist)\" \"-Dfprintf(stream, format,
...)=printf(format)\" \"-Dtimeval=struct timeval{int tv_sec; int tv_usec;}\"
\"-Dgettimeofday(tv, tz)\" -D_LIBCPP_PRINT=1")
+ if(${target} STREQUAL "armv8m.main-unknown-eabi")
+ set(RUNTIMES_${target}_CMAKE_${lang}_local_flags
"${RUNTIMES_${target}_CMAKE_${lang}_local_flags} -mfloat-abi=softfp
-march=armv8m.main+fp+dsp -mcpu=cortex-m33" CACHE STRING "")
+ endif()
+ set(RUNTIMES_${target}_CMAKE_${lang}_FLAGS
"${RUNTIMES_${target}_CMAKE_${lang}_local_flags}" CACHE STRING "")
endforeach()
foreach(type SHARED;MODULE;EXE)
set(RUNTIMES_${target}_CMAKE_${type}_LINKER_FLAGS "-fuse-ld=lld" CACHE
STRING "")
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