diff options
Diffstat (limited to 'ext/ffi_c/libffi/src/powerpc/sysv.S')
| -rw-r--r-- | ext/ffi_c/libffi/src/powerpc/sysv.S | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/ext/ffi_c/libffi/src/powerpc/sysv.S b/ext/ffi_c/libffi/src/powerpc/sysv.S index 96ea22b..fed2380 100644 --- a/ext/ffi_c/libffi/src/powerpc/sysv.S +++ b/ext/ffi_c/libffi/src/powerpc/sysv.S @@ -30,7 +30,7 @@ #include <ffi.h> #include <powerpc/asm.h> -#ifndef __powerpc64__ +#ifndef POWERPC64 .globl ffi_prep_args_SYSV ENTRY(ffi_call_SYSV) .LFB1: @@ -83,6 +83,7 @@ ENTRY(ffi_call_SYSV) nop 1: +#ifndef __NO_FPRS__ /* Load all the FP registers. */ bf- 6,2f lfd %f1,-16-(8*4)-(8*8)(%r28) @@ -94,6 +95,7 @@ ENTRY(ffi_call_SYSV) lfd %f6,-16-(8*4)-(3*8)(%r28) lfd %f7,-16-(8*4)-(2*8)(%r28) lfd %f8,-16-(8*4)-(1*8)(%r28) +#endif 2: /* Make the call. */ @@ -103,7 +105,9 @@ ENTRY(ffi_call_SYSV) mtcrf 0x01,%r31 /* cr7 */ bt- 31,L(small_struct_return_value) bt- 30,L(done_return_value) +#ifndef __NO_FPRS__ bt- 29,L(fp_return_value) +#endif stw %r3,0(%r30) bf+ 28,L(done_return_value) stw %r4,4(%r30) @@ -124,6 +128,7 @@ L(done_return_value): lwz %r1,0(%r1) blr +#ifndef __NO_FPRS__ L(fp_return_value): bf 28,L(float_return_value) stfd %f1,0(%r30) @@ -134,21 +139,17 @@ L(fp_return_value): L(float_return_value): stfs %f1,0(%r30) b L(done_return_value) +#endif L(small_struct_return_value): - extrwi %r6,%r31,2,19 /* number of bytes padding = shift/8 */ - mtcrf 0x02,%r31 /* copy flags to cr[24:27] (cr6) */ - extrwi %r5,%r31,5,19 /* r5 <- number of bits of padding */ - subfic %r6,%r6,4 /* r6 <- number of useful bytes in r3 */ - bf- 25,L(done_return_value) /* struct in r3 ? if not, done. */ -/* smst_one_register: */ - slw %r3,%r3,%r5 /* Left-justify value in r3 */ - mtxer %r6 /* move byte count to XER ... */ - stswx %r3,0,%r30 /* ... and store that many bytes */ - bf+ 26,L(done_return_value) /* struct in r3:r4 ? */ - add %r6,%r6,%r30 /* adjust pointer */ - stswi %r4,%r6,4 /* store last four bytes */ - b L(done_return_value) + /* + * The C code always allocates a properly-aligned 8-byte bounce + * buffer to make this assembly code very simple. Just write out + * r3 and r4 to the buffer to allow the C code to handle the rest. + */ + stw %r3, 0(%r30) + stw %r4, 4(%r30) + b L(done_return_value) .LFE1: END(ffi_call_SYSV) @@ -212,8 +213,8 @@ END(ffi_call_SYSV) .uleb128 0x1c .align 2 .LEFDE1: -#endif #if defined __ELF__ && defined __linux__ .section .note.GNU-stack,"",@progbits #endif +#endif |