projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ef2b01e A |
1 | /** @file\r |
| 2 | Macros to work around lack of Apple support for LDR register, =expr\r | |
| 3 | \r | |
| d6ebcab7 | 4 | Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r |
| 1377db63 | 5 | Copyright (c) 2011-2012, ARM Ltd. All rights reserved.<BR>\r |
| d2d0e27c | 6 | Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>\r |
| 2ef2b01e | 7 | \r |
| d6ebcab7 | 8 | This program and the accompanying materials\r |
| 2ef2b01e A |
9 | are licensed and made available under the terms and conditions of the BSD License\r |
| 10 | which accompanies this distribution. The full text of the license may be found at\r | |
| 11 | http://opensource.org/licenses/bsd-license.php\r | |
| 12 | \r | |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 15 | \r | |
| 16 | **/\r | |
| 17 | \r | |
| 18 | \r | |
| 19 | #ifndef __MACRO_IO_LIB_H__\r | |
| 20 | #define __MACRO_IO_LIB_H__\r | |
| 21 | \r | |
| 22 | #if defined(__APPLE__)\r | |
| 23 | \r | |
| 24 | //\r | |
| 25 | // ldr reg, =expr does not work with current Apple tool chain. So do the work our selves\r | |
| 26 | //\r | |
| 27 | \r | |
| 2ef2b01e A |
28 | // load _Reg with _Data\r |
| 29 | #define LoadConstantToReg(_Data, _Reg) \\r | |
| 30 | ldr _Reg, [pc, #0] ; \\r | |
| 31 | b 1f ; \\r | |
| 32 | .long (_Data) ; \\r | |
| 33 | 1:\r | |
| 34 | \r | |
| 2ef2b01e A |
35 | #elif defined (__GNUC__)\r |
| 36 | \r | |
| 2ef2b01e A |
37 | #define LoadConstantToReg(Data, Reg) \\r |
| 38 | ldr Reg, =Data\r | |
| bebda7ce | 39 | \r |
| 2ef2b01e A |
40 | #else\r |
| 41 | \r | |
| 42 | //\r | |
| 3402aac7 | 43 | // Use ARM assembly macros, form armasam\r |
| 2ef2b01e A |
44 | //\r |
| 45 | // Less magic in the macros if ldr reg, =expr works\r | |
| 46 | //\r | |
| 47 | \r | |
| 2ef2b01e A |
48 | // load _Reg with _Data\r |
| 49 | \r | |
| 50 | \r | |
| 51 | #define LoadConstantToReg(Data, Reg) LoadConstantToRegMacro Data, Reg\r | |
| 52 | \r | |
| 2dbcb8f0 | 53 | #endif\r |
| 2ef2b01e | 54 | \r |
| d2d0e27c AB |
55 | #define _ASM_FUNC(Name, Section) \\r |
| 56 | .global Name ; \\r | |
| 57 | .section #Section, "ax" ; \\r | |
| 58 | .type Name, %function ; \\r | |
| 493b4045 | 59 | .p2align 2 ; \\r |
| d2d0e27c AB |
60 | Name:\r |
| 61 | \r | |
| 62 | #define ASM_FUNC(Name) _ASM_FUNC(ASM_PFX(Name), .text. ## Name)\r | |
| 63 | \r | |
| 64 | #define MOV32(Reg, Val) \\r | |
| 65 | movw Reg, #(Val) & 0xffff ; \\r | |
| 66 | movt Reg, #(Val) >> 16\r | |
| 67 | \r | |
| 68 | #define ADRL(Reg, Sym) \\r | |
| 69 | movw Reg, #:lower16:(Sym) - (. + 16) ; \\r | |
| 70 | movt Reg, #:upper16:(Sym) - (. + 12) ; \\r | |
| 71 | add Reg, Reg, pc\r | |
| 72 | \r | |
| 73 | #define LDRL(Reg, Sym) \\r | |
| 74 | movw Reg, #:lower16:(Sym) - (. + 16) ; \\r | |
| 75 | movt Reg, #:upper16:(Sym) - (. + 12) ; \\r | |
| 76 | ldr Reg, [pc, Reg]\r | |
| 77 | \r | |
| 2ef2b01e | 78 | #endif\r |