* [PATCH 3/9] arm: Don't add crtfastmath.o for -shared
@ 2023-01-13 8:00 Richard Biener
2023-01-13 10:53 ` Richard Earnshaw
0 siblings, 1 reply; 2+ messages in thread
From: Richard Biener @ 2023-01-13 8:00 UTC (permalink / raw)
To: gcc-patches; +Cc: richard.earnshaw
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.
---
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"
--
2.35.3
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH 3/9] arm: Don't add crtfastmath.o for -shared
2023-01-13 8:00 [PATCH 3/9] arm: Don't add crtfastmath.o for -shared Richard Biener
@ 2023-01-13 10:53 ` Richard Earnshaw
0 siblings, 0 replies; 2+ messages in thread
From: Richard Earnshaw @ 2023-01-13 10:53 UTC (permalink / raw)
To: Richard Biener, gcc-patches; +Cc: richard.earnshaw
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"
^ permalink raw reply [flat|nested] 2+ messages in thread
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