Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Add integer to a section. |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 2 | Copyright (C) 2002, 2005 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Written by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 9 | * the GNU Lesser General Public License as published by the Free |
| 10 | Software Foundation; either version 3 of the License, or (at |
| 11 | your option) any later version |
| 12 | |
| 13 | or |
| 14 | |
| 15 | * the GNU General Public License as published by the Free |
| 16 | Software Foundation; either version 2 of the License, or (at |
| 17 | your option) any later version |
| 18 | |
| 19 | or both in parallel, as here. |
| 20 | |
| 21 | elfutils is distributed in the hope that it will be useful, but |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 22 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 24 | General Public License for more details. |
| 25 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 26 | You should have received copies of the GNU General Public License and |
| 27 | the GNU Lesser General Public License along with this program. If |
| 28 | not, see <http://www.gnu.org/licenses/>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | # include <config.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <byteswap.h> |
| 35 | #include <endian.h> |
| 36 | #include <inttypes.h> |
| 37 | #include <string.h> |
| 38 | |
| 39 | #include <libasmP.h> |
| 40 | |
| 41 | #ifndef SIZE |
| 42 | # define SIZE 8 |
| 43 | #endif |
| 44 | |
| 45 | #define FCT(size) _FCT(size) |
| 46 | #define _FCT(size) asm_addint##size |
| 47 | #define TYPE(size) _TYPE(size) |
| 48 | #define _TYPE(size) int##size##_t |
| 49 | #define BSWAP(size) _BSWAP(size) |
| 50 | #define _BSWAP(size) bswap_##size |
| 51 | |
| 52 | |
| 53 | int |
| 54 | FCT(SIZE) (asmscn, num) |
| 55 | AsmScn_t *asmscn; |
| 56 | TYPE(SIZE) num; |
| 57 | { |
| 58 | if (asmscn == NULL) |
| 59 | return -1; |
| 60 | |
| 61 | if (asmscn->type == SHT_NOBITS && unlikely (num != 0)) |
| 62 | { |
| 63 | __libasm_seterrno (ASM_E_TYPE); |
| 64 | return -1; |
| 65 | } |
| 66 | |
| 67 | if (unlikely (asmscn->ctx->textp)) |
| 68 | { |
| 69 | // XXX Needs to use backend specified pseudo-ops |
| 70 | if (SIZE == 8) |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 71 | fprintf (asmscn->ctx->out.file, "\t.byte\t%" PRId8 "\n", (int8_t) num); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 72 | else if (SIZE == 16) |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 73 | fprintf (asmscn->ctx->out.file, "\t.value\t%" PRId16 "\n", |
| 74 | (int16_t) num); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 75 | else if (SIZE == 32) |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 76 | fprintf (asmscn->ctx->out.file, "\t.long\t%" PRId32 "\n", |
| 77 | (int32_t) num); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 78 | else |
| 79 | { |
| 80 | // XXX This is not necessary for 64-bit machines |
| 81 | bool is_leb = (elf_getident (asmscn->ctx->out.elf, NULL)[EI_DATA] |
| 82 | == ELFDATA2LSB); |
| 83 | |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 84 | fprintf (asmscn->ctx->out.file, |
| 85 | "\t.long\t%" PRId32 "\n\t.long\t%" PRId32 "\n", |
| 86 | (int32_t) (is_leb |
| 87 | ? num % 0x100000000ll : num / 0x100000000ll), |
| 88 | (int32_t) (is_leb |
| 89 | ? num / 0x100000000ll : num % 0x100000000ll)); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 90 | } |
| 91 | } |
| 92 | else |
| 93 | { |
| 94 | #if SIZE > 8 |
| 95 | bool is_leb = (elf_getident (asmscn->ctx->out.elf, NULL)[EI_DATA] |
| 96 | == ELFDATA2LSB); |
| 97 | #endif |
| 98 | TYPE(SIZE) var = num; |
| 99 | |
| 100 | /* Make sure we have enough room. */ |
| 101 | if (__libasm_ensure_section_space (asmscn, SIZE / 8) != 0) |
| 102 | return -1; |
| 103 | |
| 104 | #if SIZE > 8 |
| 105 | if ((BYTE_ORDER == LITTLE_ENDIAN && !is_leb) |
| 106 | || (BYTE_ORDER == BIG_ENDIAN && is_leb)) |
| 107 | var = BSWAP(SIZE) (var); |
| 108 | #endif |
| 109 | |
| 110 | /* Copy the variable value. */ |
| 111 | if (likely (asmscn->type == SHT_NOBITS)) |
| 112 | memcpy (&asmscn->content->data[asmscn->content->len], &var, SIZE / 8); |
| 113 | |
| 114 | /* Adjust the pointer in the data buffer. */ |
| 115 | asmscn->content->len += SIZE / 8; |
| 116 | |
| 117 | /* Increment the offset in the (sub)section. */ |
| 118 | asmscn->offset += SIZE / 8; |
| 119 | } |
| 120 | |
| 121 | return 0; |
| 122 | } |
| 123 | INTDEF(FCT(SIZE)) |