diff options
Diffstat (limited to 'ports/sysdeps/arm/setjmp.S')
| -rw-r--r-- | ports/sysdeps/arm/setjmp.S | 31 |
1 files changed, 21 insertions, 10 deletions
diff --git a/ports/sysdeps/arm/setjmp.S b/ports/sysdeps/arm/setjmp.S index 9bfacc1ab4..dbd59dd7cf 100644 --- a/ports/sysdeps/arm/setjmp.S +++ b/ports/sysdeps/arm/setjmp.S @@ -21,6 +21,7 @@ #define _ASM #include <bits/setjmp.h> #include <rtld-global-offsets.h> +#include <arm-features.h> ENTRY (__sigsetjmp) mov ip, r0 @@ -28,24 +29,30 @@ ENTRY (__sigsetjmp) /* Save registers */ stmia ip!, {v1-v6, sl, fp, sp, lr} +#if !defined ARM_ASSUME_NO_IWMMXT || defined __SOFTFP__ +# define NEED_HWCAP 1 +#endif + +#ifdef NEED_HWCAP /* Check if we have a VFP unit. */ -#ifdef IS_IN_rtld +# ifdef IS_IN_rtld ldr a3, 1f ldr a4, .Lrtld_local_ro 0: add a3, pc, a3 add a3, a3, a4 ldr a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET] -#else -#ifdef PIC +# else +# ifdef PIC ldr a3, 1f ldr a4, .Lrtld_global_ro 0: add a3, pc, a3 ldr a3, [a3, a4] ldr a3, [a3, #RTLD_GLOBAL_RO_DL_HWCAP_OFFSET] -#else +# else ldr a3, .Lhwcap ldr a3, [a3, #0] -#endif +# endif +# endif #endif #ifdef __SOFTFP__ @@ -64,6 +71,7 @@ ENTRY (__sigsetjmp) str a4, [ip], #4 .Lno_vfp: +#ifndef ARM_ASSUME_NO_IWMMXT tst a3, #HWCAP_ARM_IWMMXT beq .Lno_iwmmxt @@ -76,23 +84,26 @@ ENTRY (__sigsetjmp) stcl p1, cr14, [r12], #8 stcl p1, cr15, [r12], #8 .Lno_iwmmxt: +#endif /* Make a tail call to __sigjmp_save; it takes the same args. */ B PLTJMP(C_SYMBOL_NAME(__sigjmp_save)) -#ifdef IS_IN_rtld +#ifdef NEED_HWCAP +# ifdef IS_IN_rtld 1: .long _GLOBAL_OFFSET_TABLE_ - 0b - 8 .Lrtld_local_ro: .long C_SYMBOL_NAME(_rtld_local_ro)(GOTOFF) -#else -#ifdef PIC +# else +# ifdef PIC 1: .long _GLOBAL_OFFSET_TABLE_ - 0b - 8 .Lrtld_global_ro: .long C_SYMBOL_NAME(_rtld_global_ro)(GOT) -#else +# else .Lhwcap: .long C_SYMBOL_NAME(_dl_hwcap) -#endif +# endif +# endif #endif END (__sigsetjmp) |