diff options
author | Steve McIntyre <steve@einval.com> | 2021-03-23 23:49:46 +0000 |
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committer | Steve McIntyre <steve@einval.com> | 2021-03-23 23:49:46 +0000 |
commit | 1251a7ba86fc40a6aad8b4fecdbca2b61808d9fa (patch) | |
tree | 2125fda549aaca55cb49a48d54be77dec7fbf3df /gnu-efi/lib/aarch64 | |
parent | 85b409232ce89b34626df9d72abedf5d4f5ccef6 (diff) | |
parent | 031e5cce385d3f96b1caa1d53495332a7eb03749 (diff) | |
download | efi-boot-shim-debian/15.3-1.tar.gz efi-boot-shim-debian/15.3-1.zip |
Update upstream source from tag 'upstream/15.3'debian/15.3-1
Update to upstream version '15.3'
with Debian dir 1b484f1c1ac270604a5a1451b34de4b0865c6211
Diffstat (limited to 'gnu-efi/lib/aarch64')
-rw-r--r-- | gnu-efi/lib/aarch64/efi_stub.S | 1 | ||||
-rw-r--r-- | gnu-efi/lib/aarch64/initplat.c | 26 | ||||
-rw-r--r-- | gnu-efi/lib/aarch64/math.c | 63 | ||||
-rw-r--r-- | gnu-efi/lib/aarch64/setjmp.S | 60 |
4 files changed, 150 insertions, 0 deletions
diff --git a/gnu-efi/lib/aarch64/efi_stub.S b/gnu-efi/lib/aarch64/efi_stub.S new file mode 100644 index 00000000..464eae58 --- /dev/null +++ b/gnu-efi/lib/aarch64/efi_stub.S @@ -0,0 +1 @@ +/* This stub is a stub to make the build happy */ diff --git a/gnu-efi/lib/aarch64/initplat.c b/gnu-efi/lib/aarch64/initplat.c new file mode 100644 index 00000000..6c5e1fa5 --- /dev/null +++ b/gnu-efi/lib/aarch64/initplat.c @@ -0,0 +1,26 @@ +/* + * Copright (C) 2014 Linaro Ltd. + * Author: Ard Biesheuvel <ard.biesheuvel@linaro.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice and this list of conditions, without modification. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License as published by the Free Software Foundation; + * either version 2 of the License, or (at your option) any later version. + */ + +#include "lib.h" + +VOID +InitializeLibPlatform ( + IN EFI_HANDLE ImageHandle EFI_UNUSED, + IN EFI_SYSTEM_TABLE *SystemTable EFI_UNUSED + ) +{ +} diff --git a/gnu-efi/lib/aarch64/math.c b/gnu-efi/lib/aarch64/math.c new file mode 100644 index 00000000..8c164446 --- /dev/null +++ b/gnu-efi/lib/aarch64/math.c @@ -0,0 +1,63 @@ +/* + * Copright (C) 2014 Linaro Ltd. + * Author: Ard Biesheuvel <ard.biesheuvel@linaro.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice and this list of conditions, without modification. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License as published by the Free Software Foundation; + * either version 2 of the License, or (at your option) any later version. + */ + +#include "lib.h" + +UINT64 +LShiftU64 ( + IN UINT64 Operand, + IN UINTN Count + ) +// Left shift 64bit by 32bit and get a 64bit result +{ + return Operand << Count; +} + +UINT64 +RShiftU64 ( + IN UINT64 Operand, + IN UINTN Count + ) +// Right shift 64bit by 32bit and get a 64bit result +{ + return Operand >> Count; +} + + +UINT64 +MultU64x32 ( + IN UINT64 Multiplicand, + IN UINTN Multiplier + ) +// Multiple 64bit by 32bit and get a 64bit result +{ + return Multiplicand * Multiplier; +} + +UINT64 +DivU64x32 ( + IN UINT64 Dividend, + IN UINTN Divisor, + OUT UINTN *Remainder OPTIONAL + ) +// divide 64bit by 32bit and get a 64bit result +// N.B. only works for 31bit divisors!! +{ + if (Remainder) + *Remainder = Dividend % Divisor; + return Dividend / Divisor; +} diff --git a/gnu-efi/lib/aarch64/setjmp.S b/gnu-efi/lib/aarch64/setjmp.S new file mode 100644 index 00000000..46c29b16 --- /dev/null +++ b/gnu-efi/lib/aarch64/setjmp.S @@ -0,0 +1,60 @@ +/* + * Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved. + * This program and the accompanying materials are licensed and made +available + * under the terms and conditions of the BSD License which accompanies +this + * distribution. The full text of the license may be found at + * http://opensource.org/licenses/bsd-license.php. + * + * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" +BASIS, + * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR + * IMPLIED. + */ + .text + .p2align 3 + +#define GPR_LAYOUT \ + REG_PAIR (x19, x20, 0); \ + REG_PAIR (x21, x22, 16); \ + REG_PAIR (x23, x24, 32); \ + REG_PAIR (x25, x26, 48); \ + REG_PAIR (x27, x28, 64); \ + REG_PAIR (x29, x30, 80); \ + REG_ONE (x16, 96) + +#define FPR_LAYOUT \ + REG_PAIR(d8, d9, 112); \ + REG_PAIR(d10, d11, 128); \ + REG_PAIR(d12, d13, 144); \ + REG_PAIR(d14, d15, 160); + +#define REG_PAIR(REG1, REG2, OFFS) stp REG1, REG2, [x0, OFFS] +#define REG_ONE(REG1, OFFS) str REG1, [x0, OFFS] + + .globl setjmp + .type setjmp, @function +setjmp: + mov x16, sp + GPR_LAYOUT + FPR_LAYOUT + mov w0, #0 + ret + +#undef REG_PAIR +#undef REG_ONE + +#define REG_PAIR(REG1, REG2, OFFS) ldp REG1, REG2, [x0, OFFS] +#define REG_ONE(REG1, OFFS) ldr REG1, [x0, OFFS] + + .globl longjmp + .type longjmp, @function +longjmp: + GPR_LAYOUT + FPR_LAYOUT + mov sp, x16 + cmp w1, #0 + mov w0, #1 + csel w0, w1, w0, ne + br x30 |