diff options
Diffstat (limited to 'js/src/ctypes/libffi/src/avr32/sysv.S')
| -rw-r--r-- | js/src/ctypes/libffi/src/avr32/sysv.S | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/js/src/ctypes/libffi/src/avr32/sysv.S b/js/src/ctypes/libffi/src/avr32/sysv.S new file mode 100644 index 0000000..a984b3c --- /dev/null +++ b/js/src/ctypes/libffi/src/avr32/sysv.S @@ -0,0 +1,208 @@ +/* ----------------------------------------------------------------------- + sysv.S - Copyright (c) 2009 Bradley Smith <brad@brad-smith.co.uk> + + AVR32 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> + + /* r12: ffi_prep_args + * r11: &ecif + * r10: size + * r9: cif->flags + * r8: ecif.rvalue + * sp+0: cif->rstruct_flag + * sp+4: fn */ + + .text + .align 1 + .globl ffi_call_SYSV + .type ffi_call_SYSV, @function +ffi_call_SYSV: + stm --sp, r0,r1,lr + stm --sp, r8-r12 + mov r0, sp + + /* Make room for all of the new args. */ + sub sp, r10 + /* Pad to make way for potential skipped registers */ + sub sp, 20 + + /* Call ffi_prep_args(stack, &ecif). */ + /* r11 already set */ + mov r1, r12 + mov r12, sp + icall r1 + + /* Save new argument size */ + mov r1, r12 + + /* Move first 5 parameters in registers. */ + ldm sp++, r8-r12 + + /* call (fn) (...). */ + ld.w r1, r0[36] + icall r1 + + /* Remove the space we pushed for the args. */ + mov sp, r0 + + /* Load r1 with the rstruct flag. */ + ld.w r1, sp[32] + + /* Load r9 with the return type code. */ + ld.w r9, sp[12] + + /* Load r8 with the return value pointer. */ + ld.w r8, sp[16] + + /* If the return value pointer is NULL, assume no return value. */ + cp.w r8, 0 + breq .Lend + + /* Check if return type is actually a struct */ + cp.w r1, 0 + breq 1f + + /* Return 8bit */ + cp.w r9, FFI_TYPE_UINT8 + breq .Lstore8 + + /* Return 16bit */ + cp.w r9, FFI_TYPE_UINT16 + breq .Lstore16 + +1: + /* Return 32bit */ + cp.w r9, FFI_TYPE_UINT32 + breq .Lstore32 + cp.w r9, FFI_TYPE_UINT16 + breq .Lstore32 + cp.w r9, FFI_TYPE_UINT8 + breq .Lstore32 + + /* Return 64bit */ + cp.w r9, FFI_TYPE_UINT64 + breq .Lstore64 + + /* Didn't match anything */ + bral .Lend + +.Lstore64: + st.w r8[0], r11 + st.w r8[4], r10 + bral .Lend + +.Lstore32: + st.w r8[0], r12 + bral .Lend + +.Lstore16: + st.h r8[0], r12 + bral .Lend + +.Lstore8: + st.b r8[0], r12 + bral .Lend + +.Lend: + sub sp, -20 + ldm sp++, r0,r1,pc + + .size ffi_call_SYSV, . - ffi_call_SYSV + + + /* r12: __ctx + * r11: __rstruct_flag + * r10: __inner */ + + .align 1 + .globl ffi_closure_SYSV + .type ffi_closure_SYSV, @function +ffi_closure_SYSV: + stm --sp, r0,lr + mov r0, r11 + mov r8, r10 + sub r10, sp, -8 + sub sp, 12 + st.w sp[8], sp + sub r11, sp, -8 + icall r8 + + /* Check if return type is actually a struct */ + cp.w r0, 0 + breq 1f + + /* Return 8bit */ + cp.w r12, FFI_TYPE_UINT8 + breq .Lget8 + + /* Return 16bit */ + cp.w r12, FFI_TYPE_UINT16 + breq .Lget16 + +1: + /* Return 32bit */ + cp.w r12, FFI_TYPE_UINT32 + breq .Lget32 + cp.w r12, FFI_TYPE_UINT16 + breq .Lget32 + cp.w r12, FFI_TYPE_UINT8 + breq .Lget32 + + /* Return 64bit */ + cp.w r12, FFI_TYPE_UINT64 + breq .Lget64 + + /* Didn't match anything */ + bral .Lclend + +.Lget64: + ld.w r11, sp[0] + ld.w r10, sp[4] + bral .Lclend + +.Lget32: + ld.w r12, sp[0] + bral .Lclend + +.Lget16: + ld.uh r12, sp[0] + bral .Lclend + +.Lget8: + ld.ub r12, sp[0] + bral .Lclend + +.Lclend: + sub sp, -12 + ldm sp++, r0,lr + sub sp, -20 + mov pc, lr + + .size ffi_closure_SYSV, . - ffi_closure_SYSV + +#if defined __ELF__ && defined __linux__ + .section .note.GNU-stack,"",@progbits +#endif |