diff options
Diffstat (limited to 'Modules/_ctypes/libffi/src/x86/unix64.S')
| -rw-r--r-- | Modules/_ctypes/libffi/src/x86/unix64.S | 432 |
1 files changed, 0 insertions, 432 deletions
diff --git a/Modules/_ctypes/libffi/src/x86/unix64.S b/Modules/_ctypes/libffi/src/x86/unix64.S deleted file mode 100644 index 45a0ed7463..0000000000 --- a/Modules/_ctypes/libffi/src/x86/unix64.S +++ /dev/null @@ -1,432 +0,0 @@ -/* ----------------------------------------------------------------------- - unix64.S - Copyright (c) 2013 The Written Word, Inc. - - Copyright (c) 2008 Red Hat, Inc - - Copyright (c) 2002 Bo Thorsen <bo@suse.de> - - x86-64 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. - ----------------------------------------------------------------------- */ - -#ifdef __x86_64__ -#define LIBFFI_ASM -#include <fficonfig.h> -#include <ffi.h> - -.text - -/* ffi_call_unix64 (void *args, unsigned long bytes, unsigned flags, - void *raddr, void (*fnaddr)(void)); - - Bit o trickiness here -- ARGS+BYTES is the base of the stack frame - for this function. This has been allocated by ffi_call. We also - deallocate some of the stack that has been alloca'd. */ - - .align 2 - .globl ffi_call_unix64 - .type ffi_call_unix64,@function - -ffi_call_unix64: -.LUW0: - movq (%rsp), %r10 /* Load return address. */ - leaq (%rdi, %rsi), %rax /* Find local stack base. */ - movq %rdx, (%rax) /* Save flags. */ - movq %rcx, 8(%rax) /* Save raddr. */ - movq %rbp, 16(%rax) /* Save old frame pointer. */ - movq %r10, 24(%rax) /* Relocate return address. */ - movq %rax, %rbp /* Finalize local stack frame. */ -.LUW1: - movq %rdi, %r10 /* Save a copy of the register area. */ - movq %r8, %r11 /* Save a copy of the target fn. */ - movl %r9d, %eax /* Set number of SSE registers. */ - - /* Load up all argument registers. */ - movq (%r10), %rdi - movq 8(%r10), %rsi - movq 16(%r10), %rdx - movq 24(%r10), %rcx - movq 32(%r10), %r8 - movq 40(%r10), %r9 - testl %eax, %eax - jnz .Lload_sse -.Lret_from_load_sse: - - /* Deallocate the reg arg area. */ - leaq 176(%r10), %rsp - - /* Call the user function. */ - call *%r11 - - /* Deallocate stack arg area; local stack frame in redzone. */ - leaq 24(%rbp), %rsp - - movq 0(%rbp), %rcx /* Reload flags. */ - movq 8(%rbp), %rdi /* Reload raddr. */ - movq 16(%rbp), %rbp /* Reload old frame pointer. */ -.LUW2: - - /* The first byte of the flags contains the FFI_TYPE. */ - movzbl %cl, %r10d - leaq .Lstore_table(%rip), %r11 - movslq (%r11, %r10, 4), %r10 - addq %r11, %r10 - jmp *%r10 - -.Lstore_table: - .long .Lst_void-.Lstore_table /* FFI_TYPE_VOID */ - .long .Lst_sint32-.Lstore_table /* FFI_TYPE_INT */ - .long .Lst_float-.Lstore_table /* FFI_TYPE_FLOAT */ - .long .Lst_double-.Lstore_table /* FFI_TYPE_DOUBLE */ - .long .Lst_ldouble-.Lstore_table /* FFI_TYPE_LONGDOUBLE */ - .long .Lst_uint8-.Lstore_table /* FFI_TYPE_UINT8 */ - .long .Lst_sint8-.Lstore_table /* FFI_TYPE_SINT8 */ - .long .Lst_uint16-.Lstore_table /* FFI_TYPE_UINT16 */ - .long .Lst_sint16-.Lstore_table /* FFI_TYPE_SINT16 */ - .long .Lst_uint32-.Lstore_table /* FFI_TYPE_UINT32 */ - .long .Lst_sint32-.Lstore_table /* FFI_TYPE_SINT32 */ - .long .Lst_int64-.Lstore_table /* FFI_TYPE_UINT64 */ - .long .Lst_int64-.Lstore_table /* FFI_TYPE_SINT64 */ - .long .Lst_struct-.Lstore_table /* FFI_TYPE_STRUCT */ - .long .Lst_int64-.Lstore_table /* FFI_TYPE_POINTER */ - - .align 2 -.Lst_void: - ret - .align 2 - -.Lst_uint8: - movzbq %al, %rax - movq %rax, (%rdi) - ret - .align 2 -.Lst_sint8: - movsbq %al, %rax - movq %rax, (%rdi) - ret - .align 2 -.Lst_uint16: - movzwq %ax, %rax - movq %rax, (%rdi) - .align 2 -.Lst_sint16: - movswq %ax, %rax - movq %rax, (%rdi) - ret - .align 2 -.Lst_uint32: - movl %eax, %eax - movq %rax, (%rdi) - .align 2 -.Lst_sint32: - cltq - movq %rax, (%rdi) - ret - .align 2 -.Lst_int64: - movq %rax, (%rdi) - ret - - .align 2 -.Lst_float: - movss %xmm0, (%rdi) - ret - .align 2 -.Lst_double: - movsd %xmm0, (%rdi) - ret -.Lst_ldouble: - fstpt (%rdi) - ret - - .align 2 -.Lst_struct: - leaq -20(%rsp), %rsi /* Scratch area in redzone. */ - - /* We have to locate the values now, and since we don't want to - write too much data into the user's return value, we spill the - value to a 16 byte scratch area first. Bits 8, 9, and 10 - control where the values are located. Only one of the three - bits will be set; see ffi_prep_cif_machdep for the pattern. */ - movd %xmm0, %r10 - movd %xmm1, %r11 - testl $0x100, %ecx - cmovnz %rax, %rdx - cmovnz %r10, %rax - testl $0x200, %ecx - cmovnz %r10, %rdx - testl $0x400, %ecx - cmovnz %r10, %rax - cmovnz %r11, %rdx - movq %rax, (%rsi) - movq %rdx, 8(%rsi) - - /* Bits 12-31 contain the true size of the structure. Copy from - the scratch area to the true destination. */ - shrl $12, %ecx - rep movsb - ret - - /* Many times we can avoid loading any SSE registers at all. - It's not worth an indirect jump to load the exact set of - SSE registers needed; zero or all is a good compromise. */ - .align 2 -.LUW3: -.Lload_sse: - movdqa 48(%r10), %xmm0 - movdqa 64(%r10), %xmm1 - movdqa 80(%r10), %xmm2 - movdqa 96(%r10), %xmm3 - movdqa 112(%r10), %xmm4 - movdqa 128(%r10), %xmm5 - movdqa 144(%r10), %xmm6 - movdqa 160(%r10), %xmm7 - jmp .Lret_from_load_sse - -.LUW4: - .size ffi_call_unix64,.-ffi_call_unix64 - - .align 2 - .globl ffi_closure_unix64 - .type ffi_closure_unix64,@function - -ffi_closure_unix64: -.LUW5: - /* The carry flag is set by the trampoline iff SSE registers - are used. Don't clobber it before the branch instruction. */ - leaq -200(%rsp), %rsp -.LUW6: - movq %rdi, (%rsp) - movq %rsi, 8(%rsp) - movq %rdx, 16(%rsp) - movq %rcx, 24(%rsp) - movq %r8, 32(%rsp) - movq %r9, 40(%rsp) - jc .Lsave_sse -.Lret_from_save_sse: - - movq %r10, %rdi - leaq 176(%rsp), %rsi - movq %rsp, %rdx - leaq 208(%rsp), %rcx - call ffi_closure_unix64_inner@PLT - - /* Deallocate stack frame early; return value is now in redzone. */ - addq $200, %rsp -.LUW7: - - /* The first byte of the return value contains the FFI_TYPE. */ - movzbl %al, %r10d - leaq .Lload_table(%rip), %r11 - movslq (%r11, %r10, 4), %r10 - addq %r11, %r10 - jmp *%r10 - -.Lload_table: - .long .Lld_void-.Lload_table /* FFI_TYPE_VOID */ - .long .Lld_int32-.Lload_table /* FFI_TYPE_INT */ - .long .Lld_float-.Lload_table /* FFI_TYPE_FLOAT */ - .long .Lld_double-.Lload_table /* FFI_TYPE_DOUBLE */ - .long .Lld_ldouble-.Lload_table /* FFI_TYPE_LONGDOUBLE */ - .long .Lld_int8-.Lload_table /* FFI_TYPE_UINT8 */ - .long .Lld_int8-.Lload_table /* FFI_TYPE_SINT8 */ - .long .Lld_int16-.Lload_table /* FFI_TYPE_UINT16 */ - .long .Lld_int16-.Lload_table /* FFI_TYPE_SINT16 */ - .long .Lld_int32-.Lload_table /* FFI_TYPE_UINT32 */ - .long .Lld_int32-.Lload_table /* FFI_TYPE_SINT32 */ - .long .Lld_int64-.Lload_table /* FFI_TYPE_UINT64 */ - .long .Lld_int64-.Lload_table /* FFI_TYPE_SINT64 */ - .long .Lld_struct-.Lload_table /* FFI_TYPE_STRUCT */ - .long .Lld_int64-.Lload_table /* FFI_TYPE_POINTER */ - - .align 2 -.Lld_void: - ret - - .align 2 -.Lld_int8: - movzbl -24(%rsp), %eax - ret - .align 2 -.Lld_int16: - movzwl -24(%rsp), %eax - ret - .align 2 -.Lld_int32: - movl -24(%rsp), %eax - ret - .align 2 -.Lld_int64: - movq -24(%rsp), %rax - ret - - .align 2 -.Lld_float: - movss -24(%rsp), %xmm0 - ret - .align 2 -.Lld_double: - movsd -24(%rsp), %xmm0 - ret - .align 2 -.Lld_ldouble: - fldt -24(%rsp) - ret - - .align 2 -.Lld_struct: - /* There are four possibilities here, %rax/%rdx, %xmm0/%rax, - %rax/%xmm0, %xmm0/%xmm1. We collapse two by always loading - both rdx and xmm1 with the second word. For the remaining, - bit 8 set means xmm0 gets the second word, and bit 9 means - that rax gets the second word. */ - movq -24(%rsp), %rcx - movq -16(%rsp), %rdx - movq -16(%rsp), %xmm1 - testl $0x100, %eax - cmovnz %rdx, %rcx - movd %rcx, %xmm0 - testl $0x200, %eax - movq -24(%rsp), %rax - cmovnz %rdx, %rax - ret - - /* See the comment above .Lload_sse; the same logic applies here. */ - .align 2 -.LUW8: -.Lsave_sse: - movdqa %xmm0, 48(%rsp) - movdqa %xmm1, 64(%rsp) - movdqa %xmm2, 80(%rsp) - movdqa %xmm3, 96(%rsp) - movdqa %xmm4, 112(%rsp) - movdqa %xmm5, 128(%rsp) - movdqa %xmm6, 144(%rsp) - movdqa %xmm7, 160(%rsp) - jmp .Lret_from_save_sse - -.LUW9: - .size ffi_closure_unix64,.-ffi_closure_unix64 - -#ifdef __GNUC__ -/* Only emit DWARF unwind info when building with the GNU toolchain. */ - -#ifdef HAVE_AS_X86_64_UNWIND_SECTION_TYPE - .section .eh_frame,"a",@unwind -#else - .section .eh_frame,"a",@progbits -#endif -.Lframe1: - .long .LECIE1-.LSCIE1 /* CIE Length */ -.LSCIE1: - .long 0 /* CIE Identifier Tag */ - .byte 1 /* CIE Version */ - .ascii "zR\0" /* CIE Augmentation */ - .uleb128 1 /* CIE Code Alignment Factor */ - .sleb128 -8 /* CIE Data Alignment Factor */ - .byte 0x10 /* CIE RA Column */ - .uleb128 1 /* Augmentation size */ - .byte 0x1b /* FDE Encoding (pcrel sdata4) */ - .byte 0xc /* DW_CFA_def_cfa, %rsp offset 8 */ - .uleb128 7 - .uleb128 8 - .byte 0x80+16 /* DW_CFA_offset, %rip offset 1*-8 */ - .uleb128 1 - .align 8 -.LECIE1: -.LSFDE1: - .long .LEFDE1-.LASFDE1 /* FDE Length */ -.LASFDE1: - .long .LASFDE1-.Lframe1 /* FDE CIE offset */ -#if HAVE_AS_X86_PCREL - .long .LUW0-. /* FDE initial location */ -#else - .long .LUW0@rel -#endif - .long .LUW4-.LUW0 /* FDE address range */ - .uleb128 0x0 /* Augmentation size */ - - .byte 0x4 /* DW_CFA_advance_loc4 */ - .long .LUW1-.LUW0 - - /* New stack frame based off rbp. This is an itty bit of unwind - trickery in that the CFA *has* changed. There is no easy way - to describe it correctly on entry to the function. Fortunately, - it doesn't matter too much since at all points we can correctly - unwind back to ffi_call. Note that the location to which we - moved the return address is (the new) CFA-8, so from the - perspective of the unwind info, it hasn't moved. */ - .byte 0xc /* DW_CFA_def_cfa, %rbp offset 32 */ - .uleb128 6 - .uleb128 32 - .byte 0x80+6 /* DW_CFA_offset, %rbp offset 2*-8 */ - .uleb128 2 - .byte 0xa /* DW_CFA_remember_state */ - - .byte 0x4 /* DW_CFA_advance_loc4 */ - .long .LUW2-.LUW1 - .byte 0xc /* DW_CFA_def_cfa, %rsp offset 8 */ - .uleb128 7 - .uleb128 8 - .byte 0xc0+6 /* DW_CFA_restore, %rbp */ - - .byte 0x4 /* DW_CFA_advance_loc4 */ - .long .LUW3-.LUW2 - .byte 0xb /* DW_CFA_restore_state */ - - .align 8 -.LEFDE1: -.LSFDE3: - .long .LEFDE3-.LASFDE3 /* FDE Length */ -.LASFDE3: - .long .LASFDE3-.Lframe1 /* FDE CIE offset */ -#if HAVE_AS_X86_PCREL - .long .LUW5-. /* FDE initial location */ -#else - .long .LUW5@rel -#endif - .long .LUW9-.LUW5 /* FDE address range */ - .uleb128 0x0 /* Augmentation size */ - - .byte 0x4 /* DW_CFA_advance_loc4 */ - .long .LUW6-.LUW5 - .byte 0xe /* DW_CFA_def_cfa_offset */ - .uleb128 208 - .byte 0xa /* DW_CFA_remember_state */ - - .byte 0x4 /* DW_CFA_advance_loc4 */ - .long .LUW7-.LUW6 - .byte 0xe /* DW_CFA_def_cfa_offset */ - .uleb128 8 - - .byte 0x4 /* DW_CFA_advance_loc4 */ - .long .LUW8-.LUW7 - .byte 0xb /* DW_CFA_restore_state */ - - .align 8 -.LEFDE3: - -#endif /* __GNUC__ */ - -#endif /* __x86_64__ */ - -#if defined __ELF__ && defined __linux__ - .section .note.GNU-stack,"",@progbits -#endif |