diff options
| author | Kenneth R Westerback <krw@cvs.openbsd.org> | 2021-06-04 15:19:39 +0000 |
|---|---|---|
| committer | Kenneth R Westerback <krw@cvs.openbsd.org> | 2021-06-04 15:19:39 +0000 |
| commit | 45a71d0f49539bb694d90ace993872d77d9bad69 (patch) | |
| tree | f39e3354b3bf6f3eaa2bba27e9d9b32aeab5c781 | |
| parent | 9cf8ab3ce77f764b97a2cf5b66792c4603a6d4b2 (diff) | |
Remove now unused eficall.S.
prodded by jsg@
| -rw-r--r-- | sys/arch/amd64/stand/efiboot/eficall.S | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/sys/arch/amd64/stand/efiboot/eficall.S b/sys/arch/amd64/stand/efiboot/eficall.S deleted file mode 100644 index debb8e07779..00000000000 --- a/sys/arch/amd64/stand/efiboot/eficall.S +++ /dev/null @@ -1,64 +0,0 @@ -/* $OpenBSD: eficall.S,v 1.1 2015/09/02 01:52:25 yasuoka Exp $ */ - -/* - * Copyright (c) 2015 YASUOKA Masahiko <yasuoka@yasuoka.net> - * - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies. - * - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <machine/asm.h> - -/* - * Rearrange the arguments to call the given function by EFI ABI. - * - * efi_call(nargs, func, arg[0], arg[1], arg[2], arg[3], arg[4], ...) - * ---------------------------------------------------------------------- - * BSD: RDI RSI RDX RCX R8 R9 stack - * EFI: - - RCX RDX R8 R9 stack (w/shadow) - */ -ENTRY(efi_call) - push %rbp - mov %rsp, %rbp - - xchg %rcx, %rdx - mov %rcx, %rax - mov %rdi, %rcx - - /* - * set "nargs - 2 + 4 + 1" (= %rdi + 3) for next call stack size. - * (nargs - 2) is for arguments in stack, +4 for shadow registers - * and +1 for alignment - */ - add $3, %rdi - - shl $3, %rdi /* 64-bit word */ - sub %rdi, %rsp /* get the stack */ - and $(-0x10), %rsp /* align 16 bytes */ - - /* copy args */ - sub $3, %rcx - cmp $1, %rcx - jle 2f - -1: /* loop arg[n-1] .. arg[4] */ - mov 0x8(%rbp, %rcx, 8), %rdi - mov %rdi, 0x18(%rsp, %rcx, 8) - loopnz 1b -2: - mov %rax, %rcx - - call *%rsi - - mov %rbp, %rsp - pop %rbp - retq |