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libffi
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src/arc/arcompact.S
210 строк
6 KB
Yuriy Kolerov
A series of fixes for ARC port (#844)
15 сен 2024, 14:39
Не верифицирован
15 сен 2024, 14:39
30e887f
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/* ----------------------------------------------------------------------- arcompact.S - Copyright (c) 2013 Synposys, Inc. (www.synopsys.com) ARCompact 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 RENESAS TECHNOLOGY 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> #ifdef HAVE_MACHINE_ASM_H #include <machine/asm.h> #else #define CNAME(x) x #define ENTRY(x) .globl CNAME(x)` .type CNAME(x),%function` CNAME(x): #endif #if __SIZEOF_POINTER__ == 8 #define PTRS 8 #define FLTS 8 #define LARG ldl #define SARG stl #define ADDPTR addl #define MOVPTR movl #else #define PTRS 4 #define FLTS 4 #define LARG ld #define SARG st #define ADDPTR add #define MOVPTR mov #endif #define FRAME_LEN (8 * PTRS + 16) .text ENTRY(ffi_call_asm) .cfi_startproc /* Save registers. */ .cfi_def_cfa r1, FRAME_LEN SARG fp, [r1, FRAME_LEN - 2*PTRS] .cfi_offset fp, -2*PTRS SARG blink, [r1, FRAME_LEN - 1*PTRS] .cfi_offset blink, -1*PTRS ADDPTR fp, r1, FRAME_LEN MOVPTR sp, r0 .cfi_def_cfa fp, 0 /* Load arguments. */ MOVPTR r11, r2 /* fn */ MOVPTR r12, r3 /* closure */ /* Save arguments. */ LARG r0, [fp, -FRAME_LEN+0*PTRS] LARG r1, [fp, -FRAME_LEN+1*PTRS] LARG r2, [fp, -FRAME_LEN+2*PTRS] LARG r3, [fp, -FRAME_LEN+3*PTRS] LARG r4, [fp, -FRAME_LEN+4*PTRS] LARG r5, [fp, -FRAME_LEN+5*PTRS] LARG r6, [fp, -FRAME_LEN+6*PTRS] LARG r7, [fp, -FRAME_LEN+7*PTRS] /* Call the function. */ jl [r11] /* Save return value (r0/r1) */ SARG r0, [fp, -FRAME_LEN+0*PTRS] SARG r1, [fp, -FRAME_LEN+1*PTRS] /* Restore and return. */ add sp, fp, -FRAME_LEN .cfi_def_cfa sp, FRAME_LEN LARG blink, [fp, -1*PTRS] .cfi_restore blink LARG fp, [fp, -2*PTRS] .cfi_restore fp j_s [blink] .cfi_endproc .size ffi_call_asm, .-ffi_call_asm /* ffi_closure_asm. Expects address of the passed-in ffi_closure in r8. void ffi_closure_inner (ffi_cif *cif, void (*fun) (ffi_cif *, void *, void **, void *), void *user_data, size_t *stackargs, struct call_context *regargs) */ ENTRY(ffi_closure_asm) .cfi_startproc ADDPTR sp, sp, -FRAME_LEN .cfi_def_cfa_offset FRAME_LEN /* Make a frame. */ SARG fp, [sp, FRAME_LEN-2*PTRS] .cfi_offset fp, -2*PTRS SARG blink, [sp, FRAME_LEN-1*PTRS] .cfi_offset blink, -1*PTRS ADDPTR fp, sp, FRAME_LEN /* Save arguments. */ SARG r0, [sp, 0*PTRS] SARG r1, [sp, 1*PTRS] SARG r2, [sp, 2*PTRS] SARG r3, [sp, 3*PTRS] SARG r4, [sp, 4*PTRS] SARG r5, [sp, 5*PTRS] SARG r6, [sp, 6*PTRS] SARG r7, [sp, 7*PTRS] /* Enter C. */ LARG r0, [r8, FFI_TRAMPOLINE_SIZE+0*PTRS] LARG r1, [r8, FFI_TRAMPOLINE_SIZE+1*PTRS] LARG r2, [r8, FFI_TRAMPOLINE_SIZE+2*PTRS] ADDPTR r3, sp, FRAME_LEN MOVPTR r4, sp /* Call the C code. */ bl ffi_closure_inner /* Return values. */ LARG r0, [sp, 0*PTRS] LARG r1, [sp, 1*PTRS] /* Restore and return. */ LARG blink, [sp, FRAME_LEN-1*PTRS] .cfi_restore blink LARG fp, [sp, FRAME_LEN-2*PTRS] .cfi_restore fp ADDPTR sp, sp, FRAME_LEN .cfi_def_cfa_offset 0 j_s [blink] .cfi_endproc .size ffi_closure_asm, .-ffi_closure_asm /* ffi_go_closure_asm. Expects address of the passed-in ffi_go_closure in r12. void ffi_closure_inner (ffi_cif *cif, void (*fun) (ffi_cif *, void *, void **, void *), void *user_data, size_t *stackargs, struct call_context *regargs) */ ENTRY(ffi_go_closure_asm) .cfi_startproc ADDPTR sp, sp, -FRAME_LEN .cfi_def_cfa_offset FRAME_LEN /* make a frame */ SARG fp, [sp, FRAME_LEN-2*PTRS] .cfi_offset fp, -2*PTRS SARG blink, [sp, FRAME_LEN-1*PTRS] .cfi_offset blink, -1*PTRS ADDPTR fp, sp, FRAME_LEN /* save arguments */ SARG r0, [sp, 0*PTRS] SARG r1, [sp, 1*PTRS] SARG r2, [sp, 2*PTRS] SARG r3, [sp, 3*PTRS] SARG r4, [sp, 4*PTRS] SARG r5, [sp, 5*PTRS] SARG r6, [sp, 6*PTRS] SARG r7, [sp, 7*PTRS] /* enter C */ LARG r0, [r12, 1*PTRS] LARG r1, [r12, 2*PTRS] MOVPTR r2, r12 ADDPTR r3, sp, FRAME_LEN MOVPTR r4, sp bl ffi_closure_inner /* Return values. */ LARG r0, [sp, 0*PTRS] LARG r1, [sp, 1*PTRS] LARG blink, [sp, FRAME_LEN-1*PTRS] .cfi_restore blink LARG fp, [sp, FRAME_LEN-2*PTRS] .cfi_restore fp ADDPTR sp, sp, FRAME_LEN .cfi_def_cfa_offset 0 j_s [blink] .cfi_endproc .size ffi_go_closure_asm, .-ffi_go_closure_asm