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. |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 3 | This file is part of Red Hat elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Written by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 5 | |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 6 | Red Hat elfutils is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by the |
| 8 | Free Software Foundation; version 2 of the License. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 9 | |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 10 | Red Hat elfutils is distributed in the hope that it will be useful, but |
| 11 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License along |
| 16 | with Red Hat elfutils; if not, write to the Free Software Foundation, |
Ulrich Drepper | 1e9ef50 | 2006-04-04 22:29:06 +0000 | [diff] [blame] | 17 | Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 18 | |
| 19 | Red Hat elfutils is an included package of the Open Invention Network. |
| 20 | An included package of the Open Invention Network is a package for which |
| 21 | Open Invention Network licensees cross-license their patents. No patent |
| 22 | license is granted, either expressly or impliedly, by designation as an |
| 23 | included package. Should you wish to participate in the Open Invention |
| 24 | Network licensing program, please visit www.openinventionnetwork.com |
| 25 | <http://www.openinventionnetwork.com>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 26 | |
| 27 | #ifdef HAVE_CONFIG_H |
| 28 | # include <config.h> |
| 29 | #endif |
| 30 | |
| 31 | #include <byteswap.h> |
| 32 | #include <endian.h> |
| 33 | #include <inttypes.h> |
| 34 | #include <string.h> |
| 35 | |
| 36 | #include <libasmP.h> |
| 37 | |
| 38 | #ifndef SIZE |
| 39 | # define SIZE 8 |
| 40 | #endif |
| 41 | |
| 42 | #define FCT(size) _FCT(size) |
| 43 | #define _FCT(size) asm_addint##size |
| 44 | #define TYPE(size) _TYPE(size) |
| 45 | #define _TYPE(size) int##size##_t |
| 46 | #define BSWAP(size) _BSWAP(size) |
| 47 | #define _BSWAP(size) bswap_##size |
| 48 | |
| 49 | |
| 50 | int |
| 51 | FCT(SIZE) (asmscn, num) |
| 52 | AsmScn_t *asmscn; |
| 53 | TYPE(SIZE) num; |
| 54 | { |
| 55 | if (asmscn == NULL) |
| 56 | return -1; |
| 57 | |
| 58 | if (asmscn->type == SHT_NOBITS && unlikely (num != 0)) |
| 59 | { |
| 60 | __libasm_seterrno (ASM_E_TYPE); |
| 61 | return -1; |
| 62 | } |
| 63 | |
| 64 | if (unlikely (asmscn->ctx->textp)) |
| 65 | { |
| 66 | // XXX Needs to use backend specified pseudo-ops |
| 67 | if (SIZE == 8) |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 68 | 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] | 69 | else if (SIZE == 16) |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 70 | fprintf (asmscn->ctx->out.file, "\t.value\t%" PRId16 "\n", |
| 71 | (int16_t) num); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 72 | else if (SIZE == 32) |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 73 | fprintf (asmscn->ctx->out.file, "\t.long\t%" PRId32 "\n", |
| 74 | (int32_t) num); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 75 | else |
| 76 | { |
| 77 | // XXX This is not necessary for 64-bit machines |
| 78 | bool is_leb = (elf_getident (asmscn->ctx->out.elf, NULL)[EI_DATA] |
| 79 | == ELFDATA2LSB); |
| 80 | |
Ulrich Drepper | a38998e | 2005-08-03 02:05:39 +0000 | [diff] [blame] | 81 | fprintf (asmscn->ctx->out.file, |
| 82 | "\t.long\t%" PRId32 "\n\t.long\t%" PRId32 "\n", |
| 83 | (int32_t) (is_leb |
| 84 | ? num % 0x100000000ll : num / 0x100000000ll), |
| 85 | (int32_t) (is_leb |
| 86 | ? num / 0x100000000ll : num % 0x100000000ll)); |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 87 | } |
| 88 | } |
| 89 | else |
| 90 | { |
| 91 | #if SIZE > 8 |
| 92 | bool is_leb = (elf_getident (asmscn->ctx->out.elf, NULL)[EI_DATA] |
| 93 | == ELFDATA2LSB); |
| 94 | #endif |
| 95 | TYPE(SIZE) var = num; |
| 96 | |
| 97 | /* Make sure we have enough room. */ |
| 98 | if (__libasm_ensure_section_space (asmscn, SIZE / 8) != 0) |
| 99 | return -1; |
| 100 | |
| 101 | #if SIZE > 8 |
| 102 | if ((BYTE_ORDER == LITTLE_ENDIAN && !is_leb) |
| 103 | || (BYTE_ORDER == BIG_ENDIAN && is_leb)) |
| 104 | var = BSWAP(SIZE) (var); |
| 105 | #endif |
| 106 | |
| 107 | /* Copy the variable value. */ |
| 108 | if (likely (asmscn->type == SHT_NOBITS)) |
| 109 | memcpy (&asmscn->content->data[asmscn->content->len], &var, SIZE / 8); |
| 110 | |
| 111 | /* Adjust the pointer in the data buffer. */ |
| 112 | asmscn->content->len += SIZE / 8; |
| 113 | |
| 114 | /* Increment the offset in the (sub)section. */ |
| 115 | asmscn->offset += SIZE / 8; |
| 116 | } |
| 117 | |
| 118 | return 0; |
| 119 | } |
| 120 | INTDEF(FCT(SIZE)) |