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Diffstat (limited to 'Modules/_ctypes/libffi/src/microblaze/sysv.S')
| -rw-r--r-- | Modules/_ctypes/libffi/src/microblaze/sysv.S | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/Modules/_ctypes/libffi/src/microblaze/sysv.S b/Modules/_ctypes/libffi/src/microblaze/sysv.S deleted file mode 100644 index ea43e9d545..0000000000 --- a/Modules/_ctypes/libffi/src/microblaze/sysv.S +++ /dev/null @@ -1,302 +0,0 @@ -/* ----------------------------------------------------------------------- - sysv.S - Copyright (c) 2012, 2013 Xilinx, Inc - - MicroBlaze Foreign Function Interface - - Permission is hereby granted, free of charge, to any person obtaining - a copy of this software and associated documentation files (the - ``Software''), to deal in the Software without restriction, including - without limitation the rights to use, copy, modify, merge, publish, - distribute, sublicense, and/or sell copies of the Software, and to - permit persons to whom the Software is furnished to do so, subject to - the following conditions: - - The above copyright notice and this permission notice shall be included - in all copies or substantial portions of the Software. - - THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, - EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT - HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, - WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - DEALINGS IN THE SOFTWARE. - ----------------------------------------------------------------------- */ - -#define LIBFFI_ASM -#include <fficonfig.h> -#include <ffi.h> - - /* - * arg[0] (r5) = ffi_prep_args, - * arg[1] (r6) = &ecif, - * arg[2] (r7) = cif->bytes, - * arg[3] (r8) = cif->flags, - * arg[4] (r9) = ecif.rvalue, - * arg[5] (r10) = fn - * arg[6] (sp[0]) = cif->rtype->type - * arg[7] (sp[4]) = cif->rtype->size - */ - .text - .globl ffi_call_SYSV - .type ffi_call_SYSV, @function -ffi_call_SYSV: - /* push callee saves */ - addik r1, r1, -20 - swi r19, r1, 0 /* Frame Pointer */ - swi r20, r1, 4 /* PIC register */ - swi r21, r1, 8 /* PIC register */ - swi r22, r1, 12 /* save for locals */ - swi r23, r1, 16 /* save for locals */ - - /* save the r5-r10 registers in the stack */ - addik r1, r1, -24 /* increment sp to store 6x 32-bit words */ - swi r5, r1, 0 - swi r6, r1, 4 - swi r7, r1, 8 - swi r8, r1, 12 - swi r9, r1, 16 - swi r10, r1, 20 - - /* save function pointer */ - addik r3, r5, 0 /* copy ffi_prep_args into r3 */ - addik r22, r1, 0 /* save sp for unallocated args into r22 (callee-saved) */ - addik r23, r10, 0 /* save function address into r23 (callee-saved) */ - - /* prepare stack with allocation for n (bytes = r7) args */ - rsub r1, r7, r1 /* subtract bytes from sp */ - - /* prep args for ffi_prep_args call */ - addik r5, r1, 0 /* store stack pointer into arg[0] */ - /* r6 still holds ecif for arg[1] */ - - /* Call ffi_prep_args(stack, &ecif). */ - addik r1, r1, -4 - swi r15, r1, 0 /* store the link register in the frame */ - brald r15, r3 - nop /* branch has delay slot */ - lwi r15, r1, 0 - addik r1, r1, 4 /* restore the link register from the frame */ - /* returns calling stack pointer location */ - - /* prepare args for fn call, prep_args populates them onto the stack */ - lwi r5, r1, 0 /* arg[0] */ - lwi r6, r1, 4 /* arg[1] */ - lwi r7, r1, 8 /* arg[2] */ - lwi r8, r1, 12 /* arg[3] */ - lwi r9, r1, 16 /* arg[4] */ - lwi r10, r1, 20 /* arg[5] */ - - /* call (fn) (...). */ - addik r1, r1, -4 - swi r15, r1, 0 /* store the link register in the frame */ - brald r15, r23 - nop /* branch has delay slot */ - lwi r15, r1, 0 - addik r1, r1, 4 /* restore the link register from the frame */ - - /* Remove the space we pushed for the args. */ - addik r1, r22, 0 /* restore old SP */ - - /* restore this functions parameters */ - lwi r5, r1, 0 /* arg[0] */ - lwi r6, r1, 4 /* arg[1] */ - lwi r7, r1, 8 /* arg[2] */ - lwi r8, r1, 12 /* arg[3] */ - lwi r9, r1, 16 /* arg[4] */ - lwi r10, r1, 20 /* arg[5] */ - addik r1, r1, 24 /* decrement sp to de-allocate 6x 32-bit words */ - - /* If the return value pointer is NULL, assume no return value. */ - beqi r9, ffi_call_SYSV_end - - lwi r22, r1, 48 /* get return type (20 for locals + 28 for arg[6]) */ - lwi r23, r1, 52 /* get return size (20 for locals + 32 for arg[7]) */ - - /* Check if return type is actually a struct, do nothing */ - rsubi r11, r22, FFI_TYPE_STRUCT - beqi r11, ffi_call_SYSV_end - - /* Return 8bit */ - rsubi r11, r23, 1 - beqi r11, ffi_call_SYSV_store8 - - /* Return 16bit */ - rsubi r11, r23, 2 - beqi r11, ffi_call_SYSV_store16 - - /* Return 32bit */ - rsubi r11, r23, 4 - beqi r11, ffi_call_SYSV_store32 - - /* Return 64bit */ - rsubi r11, r23, 8 - beqi r11, ffi_call_SYSV_store64 - - /* Didn't match anything */ - bri ffi_call_SYSV_end - -ffi_call_SYSV_store64: - swi r3, r9, 0 /* store word r3 into return value */ - swi r4, r9, 4 /* store word r4 into return value */ - bri ffi_call_SYSV_end - -ffi_call_SYSV_store32: - swi r3, r9, 0 /* store word r3 into return value */ - bri ffi_call_SYSV_end - -ffi_call_SYSV_store16: -#ifdef __BIG_ENDIAN__ - shi r3, r9, 2 /* store half-word r3 into return value */ -#else - shi r3, r9, 0 /* store half-word r3 into return value */ -#endif - bri ffi_call_SYSV_end - -ffi_call_SYSV_store8: -#ifdef __BIG_ENDIAN__ - sbi r3, r9, 3 /* store byte r3 into return value */ -#else - sbi r3, r9, 0 /* store byte r3 into return value */ -#endif - bri ffi_call_SYSV_end - -ffi_call_SYSV_end: - /* callee restores */ - lwi r19, r1, 0 /* frame pointer */ - lwi r20, r1, 4 /* PIC register */ - lwi r21, r1, 8 /* PIC register */ - lwi r22, r1, 12 - lwi r23, r1, 16 - addik r1, r1, 20 - - /* return from sub-routine (with delay slot) */ - rtsd r15, 8 - nop - - .size ffi_call_SYSV, . - ffi_call_SYSV - -/* ------------------------------------------------------------------------- */ - - /* - * args passed into this function, are passed down to the callee. - * this function is the target of the closure trampoline, as such r12 is - * a pointer to the closure object. - */ - .text - .globl ffi_closure_SYSV - .type ffi_closure_SYSV, @function -ffi_closure_SYSV: - /* push callee saves */ - addik r11, r1, 28 /* save stack args start location (excluding regs/link) */ - addik r1, r1, -12 - swi r19, r1, 0 /* Frame Pointer */ - swi r20, r1, 4 /* PIC register */ - swi r21, r1, 8 /* PIC register */ - - /* store register args on stack */ - addik r1, r1, -24 - swi r5, r1, 0 - swi r6, r1, 4 - swi r7, r1, 8 - swi r8, r1, 12 - swi r9, r1, 16 - swi r10, r1, 20 - - /* setup args */ - addik r5, r1, 0 /* register_args */ - addik r6, r11, 0 /* stack_args */ - addik r7, r12, 0 /* closure object */ - addik r1, r1, -8 /* allocate return value */ - addik r8, r1, 0 /* void* rvalue */ - addik r1, r1, -8 /* allocate for return type/size values */ - addik r9, r1, 0 /* void* rtype */ - addik r10, r1, 4 /* void* rsize */ - - /* call the wrap_call function */ - addik r1, r1, -28 /* allocate args + link reg */ - swi r15, r1, 0 /* store the link register in the frame */ - brald r15, r3 - nop /* branch has delay slot */ - lwi r15, r1, 0 - addik r1, r1, 28 /* restore the link register from the frame */ - -ffi_closure_SYSV_prepare_return: - lwi r9, r1, 0 /* rtype */ - lwi r10, r1, 4 /* rsize */ - addik r1, r1, 8 /* de-allocate return info values */ - - /* Check if return type is actually a struct, store 4 bytes */ - rsubi r11, r9, FFI_TYPE_STRUCT - beqi r11, ffi_closure_SYSV_store32 - - /* Return 8bit */ - rsubi r11, r10, 1 - beqi r11, ffi_closure_SYSV_store8 - - /* Return 16bit */ - rsubi r11, r10, 2 - beqi r11, ffi_closure_SYSV_store16 - - /* Return 32bit */ - rsubi r11, r10, 4 - beqi r11, ffi_closure_SYSV_store32 - - /* Return 64bit */ - rsubi r11, r10, 8 - beqi r11, ffi_closure_SYSV_store64 - - /* Didn't match anything */ - bri ffi_closure_SYSV_end - -ffi_closure_SYSV_store64: - lwi r3, r1, 0 /* store word r3 into return value */ - lwi r4, r1, 4 /* store word r4 into return value */ - /* 64 bits == 2 words, no sign extend occurs */ - bri ffi_closure_SYSV_end - -ffi_closure_SYSV_store32: - lwi r3, r1, 0 /* store word r3 into return value */ - /* 32 bits == 1 word, no sign extend occurs */ - bri ffi_closure_SYSV_end - -ffi_closure_SYSV_store16: -#ifdef __BIG_ENDIAN__ - lhui r3, r1, 2 /* store half-word r3 into return value */ -#else - lhui r3, r1, 0 /* store half-word r3 into return value */ -#endif - rsubi r11, r9, FFI_TYPE_SINT16 - bnei r11, ffi_closure_SYSV_end - sext16 r3, r3 /* fix sign extend of sint8 */ - bri ffi_closure_SYSV_end - -ffi_closure_SYSV_store8: -#ifdef __BIG_ENDIAN__ - lbui r3, r1, 3 /* store byte r3 into return value */ -#else - lbui r3, r1, 0 /* store byte r3 into return value */ -#endif - rsubi r11, r9, FFI_TYPE_SINT8 - bnei r11, ffi_closure_SYSV_end - sext8 r3, r3 /* fix sign extend of sint8 */ - bri ffi_closure_SYSV_end - -ffi_closure_SYSV_end: - addik r1, r1, 8 /* de-allocate return value */ - - /* de-allocate stored args */ - addik r1, r1, 24 - - /* callee restores */ - lwi r19, r1, 0 /* frame pointer */ - lwi r20, r1, 4 /* PIC register */ - lwi r21, r1, 8 /* PIC register */ - addik r1, r1, 12 - - /* return from sub-routine (with delay slot) */ - rtsd r15, 8 - nop - - .size ffi_closure_SYSV, . - ffi_closure_SYSV |