On 13/01/2023 08:00, Richard Biener via Gcc-patches wrote:
Don't add crtfastmath.o for -shared to avoid altering the FP
environment when loading a shared library.
PR target/55522
* config/arm/linux-eabi.h (ENDFILE_SPEC): Don't add
crtfastmath.o for -shared.
* config/arm/unknown-elf.h (STARTFILE_SPEC): Likewise.
OK.
R.
---
gcc/config/arm/linux-eabi.h | 2 +-
gcc/config/arm/unknown-elf.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h
index 57f830f0176..a119875599d 100644
--- a/gcc/config/arm/linux-eabi.h
+++ b/gcc/config/arm/linux-eabi.h
@@ -121,7 +121,7 @@
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
+ "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}} "
\
LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
diff --git a/gcc/config/arm/unknown-elf.h b/gcc/config/arm/unknown-elf.h
index 464d38b6cc6..397ac3f68b9 100644
--- a/gcc/config/arm/unknown-elf.h
+++ b/gcc/config/arm/unknown-elf.h
@@ -33,7 +33,7 @@
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
- "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
+ "%{Ofast|ffast-math|funsafe-math-optimizations:%{!shared:crtfastmath.o%s}} "
\
UNKNOWN_ELF_STARTFILE_SPEC
#define UNKNOWN_ELF_ENDFILE_SPEC "crtend%O%s crtn%O%s"
