diff options
Diffstat (limited to 'gcc-4.4.3/libffi/src/m68k/sysv.S')
| -rw-r--r-- | gcc-4.4.3/libffi/src/m68k/sysv.S | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/gcc-4.4.3/libffi/src/m68k/sysv.S b/gcc-4.4.3/libffi/src/m68k/sysv.S new file mode 100644 index 000000000..3face8383 --- /dev/null +++ b/gcc-4.4.3/libffi/src/m68k/sysv.S @@ -0,0 +1,213 @@ +/* ----------------------------------------------------------------------- + sysv.S + + m68k Foreign Function Interface + ----------------------------------------------------------------------- */ + +#define LIBFFI_ASM +#include <fficonfig.h> +#include <ffi.h> + +#ifdef HAVE_AS_CFI_PSEUDO_OP +#define CFI_STARTPROC() .cfi_startproc +#define CFI_OFFSET(reg,off) .cfi_offset reg,off +#define CFI_DEF_CFA(reg,off) .cfi_def_cfa reg,off +#define CFI_ENDPROC() .cfi_endproc +#else +#define CFI_STARTPROC() +#define CFI_OFFSET(reg,off) +#define CFI_DEF_CFA(reg,off) +#define CFI_ENDPROC() +#endif + + .text + + .globl ffi_call_SYSV + .type ffi_call_SYSV,@function + .align 4 + +ffi_call_SYSV: + CFI_STARTPROC() + link %fp,#0 + CFI_OFFSET(14,-8) + CFI_DEF_CFA(14,8) + move.l %d2,-(%sp) + CFI_OFFSET(2,-12) + + | Make room for all of the new args. + sub.l 12(%fp),%sp + + | Call ffi_prep_args + move.l 8(%fp),-(%sp) + pea 4(%sp) +#if !defined __PIC__ + jsr ffi_prep_args +#else + bsr.l ffi_prep_args@PLTPC +#endif + addq.l #8,%sp + + | Pass pointer to struct value, if any + move.l %a0,%a1 + + | Call the function + move.l 24(%fp),%a0 + jsr (%a0) + + | Remove the space we pushed for the args + add.l 12(%fp),%sp + + | Load the pointer to storage for the return value + move.l 20(%fp),%a1 + + | Load the return type code + move.l 16(%fp),%d2 + + | If the return value pointer is NULL, assume no return value. + tst.l %a1 + jbeq noretval + + btst #0,%d2 + jbeq retlongint + move.l %d0,(%a1) + jbra epilogue + +retlongint: + btst #1,%d2 + jbeq retfloat + move.l %d0,(%a1) + move.l %d1,4(%a1) + jbra epilogue + +retfloat: + btst #2,%d2 + jbeq retdouble + fmove.s %fp0,(%a1) + jbra epilogue + +retdouble: + btst #3,%d2 + jbeq retlongdouble + fmove.d %fp0,(%a1) + jbra epilogue + +retlongdouble: + btst #4,%d2 + jbeq retpointer + fmove.x %fp0,(%a1) + jbra epilogue + +retpointer: + btst #5,%d2 + jbeq retstruct1 + move.l %a0,(%a1) + jbra epilogue + +retstruct1: + btst #6,%d2 + jbeq retstruct2 + move.b %d0,(%a1) + jbra epilogue + +retstruct2: + btst #7,%d2 + jbeq noretval + move.w %d0,(%a1) + +noretval: +epilogue: + move.l (%sp)+,%d2 + unlk %fp + rts + CFI_ENDPROC() + .size ffi_call_SYSV,.-ffi_call_SYSV + + .globl ffi_closure_SYSV + .type ffi_closure_SYSV, @function + .align 4 + +ffi_closure_SYSV: + CFI_STARTPROC() + link %fp,#-12 + CFI_OFFSET(14,-8) + CFI_DEF_CFA(14,8) + move.l %sp,-12(%fp) + pea 8(%fp) + pea -12(%fp) + move.l %a0,-(%sp) +#if !defined __PIC__ + jsr ffi_closure_SYSV_inner +#else + bsr.l ffi_closure_SYSV_inner@PLTPC +#endif + + lsr.l #1,%d0 + jne 1f + jcc .Lcls_epilogue + move.l -12(%fp),%d0 +.Lcls_epilogue: + unlk %fp + rts +1: + lea -12(%fp),%a0 + lsr.l #2,%d0 + jne 1f + jcs .Lcls_ret_float + move.l (%a0)+,%d0 + move.l (%a0),%d1 + jra .Lcls_epilogue +.Lcls_ret_float: + fmove.s (%a0),%fp0 + jra .Lcls_epilogue +1: + lsr.l #2,%d0 + jne 1f + jcs .Lcls_ret_ldouble + fmove.d (%a0),%fp0 + jra .Lcls_epilogue +.Lcls_ret_ldouble: + fmove.x (%a0),%fp0 + jra .Lcls_epilogue +1: + lsr.l #2,%d0 + jne .Lcls_ret_struct2 + jcs .Lcls_ret_struct1 + move.l (%a0),%a0 + move.l %a0,%d0 + jra .Lcls_epilogue +.Lcls_ret_struct1: + move.b (%a0),%d0 + jra .Lcls_epilogue +.Lcls_ret_struct2: + move.w (%a0),%d0 + jra .Lcls_epilogue + CFI_ENDPROC() + + .size ffi_closure_SYSV,.-ffi_closure_SYSV + + .globl ffi_closure_struct_SYSV + .type ffi_closure_struct_SYSV, @function + .align 4 + +ffi_closure_struct_SYSV: + CFI_STARTPROC() + link %fp,#0 + CFI_OFFSET(14,-8) + CFI_DEF_CFA(14,8) + move.l %sp,-12(%fp) + pea 8(%fp) + move.l %a1,-(%sp) + move.l %a0,-(%sp) +#if !defined __PIC__ + jsr ffi_closure_SYSV_inner +#else + bsr.l ffi_closure_SYSV_inner@PLTPC +#endif + unlk %fp + rts + CFI_ENDPROC() + .size ffi_closure_struct_SYSV,.-ffi_closure_struct_SYSV + +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif |