Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame^] | 1 | /* Arm specific symbolic name handling. |
| 2 | Copyright (C) 2002, 2005 Red Hat, Inc. |
| 3 | Written by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 4 | |
| 5 | This program is Open Source software; you can redistribute it and/or |
| 6 | modify it under the terms of the Open Software License version 1.0 as |
| 7 | published by the Open Source Initiative. |
| 8 | |
| 9 | You should have received a copy of the Open Software License along |
| 10 | with this program; if not, you may obtain a copy of the Open Software |
| 11 | License version 1.0 from http://www.opensource.org/licenses/osl.php or |
| 12 | by writing the Open Source Initiative c/o Lawrence Rosen, Esq., |
| 13 | 3001 King Ranch Road, Ukiah, CA 95482. */ |
| 14 | |
| 15 | #ifdef HAVE_CONFIG_H |
| 16 | # include <config.h> |
| 17 | #endif |
| 18 | |
| 19 | #include <elf.h> |
| 20 | #include <stddef.h> |
| 21 | |
| 22 | #include <libebl_arm.h> |
| 23 | |
| 24 | |
| 25 | /* Return of the backend. */ |
| 26 | const char * |
| 27 | arm_backend_name (void) |
| 28 | { |
| 29 | return "arm"; |
| 30 | } |
| 31 | |
| 32 | |
| 33 | /* Relocation mapping table. */ |
| 34 | static const char *reloc_map_table[] = |
| 35 | { |
| 36 | [R_ARM_NONE] = "R_ARM_NONE", |
| 37 | [R_ARM_PC24] = "R_ARM_PC24", |
| 38 | [R_ARM_ABS32] = "R_ARM_ABS32", |
| 39 | [R_ARM_REL32] = "R_ARM_REL32", |
| 40 | [R_ARM_PC13] = "R_ARM_PC13", |
| 41 | [R_ARM_ABS16] = "R_ARM_ABS16", |
| 42 | [R_ARM_ABS12] = "R_ARM_ABS12", |
| 43 | [R_ARM_THM_ABS5] = "R_ARM_THM_ABS5", |
| 44 | [R_ARM_ABS8] = "R_ARM_ABS8", |
| 45 | [R_ARM_SBREL32] = "R_ARM_SBREL32", |
| 46 | [R_ARM_THM_PC22] = "R_ARM_THM_PC22", |
| 47 | [R_ARM_THM_PC8] = "R_ARM_THM_PC8", |
| 48 | [R_ARM_AMP_VCALL9] = "R_ARM_AMP_VCALL9", |
| 49 | [R_ARM_SWI24] = "R_ARM_SWI24", |
| 50 | [R_ARM_THM_SWI8] = "R_ARM_THM_SWI8", |
| 51 | [R_ARM_XPC25] = "R_ARM_XPC25", |
| 52 | [R_ARM_THM_XPC22] = "R_ARM_THM_XPC22", |
| 53 | [R_ARM_COPY] = "R_ARM_COPY", |
| 54 | [R_ARM_GLOB_DAT] = "R_ARM_GLOB_DAT", |
| 55 | [R_ARM_JUMP_SLOT] = "R_ARM_JUMP_SLOT", |
| 56 | [R_ARM_RELATIVE] = "R_ARM_RELATIVE", |
| 57 | [R_ARM_GOTOFF] = "R_ARM_GOTOFF", |
| 58 | [R_ARM_GOTPC] = "R_ARM_GOTPC", |
| 59 | [R_ARM_GOT32] = "R_ARM_GOT32", |
| 60 | [R_ARM_PLT32] = "R_ARM_PLT32", |
| 61 | [R_ARM_ALU_PCREL_7_0] = "R_ARM_ALU_PCREL_7_0", |
| 62 | [R_ARM_ALU_PCREL_15_8] = "R_ARM_ALU_PCREL_15_8", |
| 63 | [R_ARM_ALU_PCREL_23_15] = "R_ARM_ALU_PCREL_23_15", |
| 64 | [R_ARM_LDR_SBREL_11_0] = "R_ARM_LDR_SBREL_11_0", |
| 65 | [R_ARM_ALU_SBREL_19_12] = "R_ARM_ALU_SBREL_19_12", |
| 66 | [R_ARM_ALU_SBREL_27_20] = "R_ARM_ALU_SBREL_27_20" |
| 67 | }; |
| 68 | |
| 69 | static const char *reloc_map_table2[] = |
| 70 | { |
| 71 | [R_ARM_GNU_VTENTRY] = "R_ARM_GNU_VTENTRY", |
| 72 | [R_ARM_GNU_VTINHERIT] = "R_ARM_GNU_VTINHERIT", |
| 73 | [R_ARM_THM_PC11] = "R_ARM_THM_PC11", |
| 74 | [R_ARM_THM_PC9] = "R_ARM_THM_PC9" |
| 75 | }; |
| 76 | |
| 77 | static const char *reloc_map_table3[] = |
| 78 | { |
| 79 | [R_ARM_RXPC25] = "R_ARM_RXPC25", |
| 80 | [R_ARM_RSBREL32] = "R_ARM_RSBREL32", |
| 81 | [R_ARM_THM_RPC22] = "R_ARM_THM_RPC22", |
| 82 | [R_ARM_RREL32] = "R_ARM_RREL32", |
| 83 | [R_ARM_RABS22] = "R_ARM_RABS22", |
| 84 | [R_ARM_RPC24] = "R_ARM_RPC24", |
| 85 | [R_ARM_RBASE] = "R_ARM_RBASE" |
| 86 | }; |
| 87 | |
| 88 | |
| 89 | /* Determine relocation type string for Alpha. */ |
| 90 | const char * |
| 91 | arm_reloc_type_name (int type, char *buf __attribute__ ((unused)), |
| 92 | size_t len __attribute__ ((unused))) |
| 93 | { |
| 94 | if (type >= R_ARM_NONE && type <= R_ARM_ALU_SBREL_27_20) |
| 95 | return reloc_map_table[type]; |
| 96 | |
| 97 | if (type >= R_ARM_GNU_VTENTRY && type <= R_ARM_THM_PC9) |
| 98 | return reloc_map_table2[type - R_ARM_GNU_VTENTRY]; |
| 99 | |
| 100 | if (type >= R_ARM_RXPC25 && type <= R_ARM_RBASE) |
| 101 | return reloc_map_table3[type - R_ARM_RXPC25]; |
| 102 | |
| 103 | return NULL; |
| 104 | } |
| 105 | |
| 106 | |
| 107 | /* Check for correct relocation type. */ |
| 108 | bool |
| 109 | arm_reloc_type_check (int type) |
| 110 | { |
| 111 | return ((type >= R_ARM_NONE && type <= R_ARM_ALU_SBREL_27_20) |
| 112 | || (type >= R_ARM_GNU_VTENTRY && type <= R_ARM_THM_PC9) |
| 113 | || (type >= R_ARM_RXPC25 && type <= R_ARM_RBASE)) ? true : false; |
| 114 | } |
| 115 | |
| 116 | /* Check whether given relocation is a copy relocation. */ |
| 117 | bool |
| 118 | arm_copy_reloc_p (int reloc) |
| 119 | { |
| 120 | return reloc == R_ARM_COPY; |
| 121 | } |