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| author | andrew <andrew@FreeBSD.org> | 2014-12-01 21:13:47 +0000 |
|---|---|---|
| committer | andrew <andrew@FreeBSD.org> | 2014-12-01 21:13:47 +0000 |
| commit | 93293fc1c45f1d38bd634e54ff857a530cb3de9c (patch) | |
| tree | 359ea7052b2baa2c507ac694e9165ff4e5765ef7 /contrib/gcc | |
| parent | fb471684a4aefd34b823e239e69e8e57ce2b0730 (diff) | |
| download | FreeBSD-src-93293fc1c45f1d38bd634e54ff857a530cb3de9c.zip FreeBSD-src-93293fc1c45f1d38bd634e54ff857a530cb3de9c.tar.gz | |
Use the floating-point instruction on ARMv7 as the clang 3.5 integrated
assembler doesn't allow these two instructions to use co-processor 11.
MFC after: 1 Week
Sponsored by: ABT Systems Ltd
Diffstat (limited to 'contrib/gcc')
| -rw-r--r-- | contrib/gcc/config/arm/libunwind.S | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/contrib/gcc/config/arm/libunwind.S b/contrib/gcc/config/arm/libunwind.S index 81e4236..8b1e2f3 100644 --- a/contrib/gcc/config/arm/libunwind.S +++ b/contrib/gcc/config/arm/libunwind.S @@ -26,6 +26,13 @@ the Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ +#include <machine/acle-compat.h> + +/* Allow the use of VFP instructions */ +#if __ARM_ARCH >= 7 +.fpu vfp +#endif + #ifndef __symbian__ #include "lib1funcs.asm" @@ -66,14 +73,22 @@ ARM_FUNC_START restore_core_regs ARM_FUNC_START gnu_Unwind_Restore_VFP /* Use the generic coprocessor form so that gas doesn't complain on soft-float targets. */ +#if __ARM_ARCH >= 7 + fldmiax r0, {d0-d15} +#else ldc p11,cr0,[r0],{0x21} /* fldmiax r0, {d0-d15} */ +#endif RET /* Store VFR regsters d0-d15 to the address in r0. */ ARM_FUNC_START gnu_Unwind_Save_VFP /* Use the generic coprocessor form so that gas doesn't complain on soft-float targets. */ +#if __ARM_ARCH >= 7 + fstmiax r0, {d0-d15} +#else stc p11,cr0,[r0],{0x21} /* fstmiax r0, {d0-d15} */ +#endif RET /* Wrappers to save core registers, then call the real routine. */ |
