Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Create new subsection section in given section. |
| 2 | Copyright (C) 2002 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 <stdlib.h> |
| 35 | |
| 36 | #include <libasmP.h> |
| 37 | #include <system.h> |
| 38 | |
| 39 | |
| 40 | AsmScn_t * |
| 41 | asm_newsubscn (asmscn, nr) |
| 42 | AsmScn_t *asmscn; |
| 43 | unsigned int nr; |
| 44 | { |
| 45 | AsmScn_t *runp; |
| 46 | AsmScn_t *newp; |
| 47 | |
| 48 | /* Just return if no section is given. The error must have been |
| 49 | somewhere else. */ |
| 50 | if (asmscn == NULL) |
| 51 | return NULL; |
| 52 | |
| 53 | /* Determine whether there is already a subsection with this number. */ |
| 54 | runp = asmscn->subsection_id == 0 ? asmscn : asmscn->data.up; |
| 55 | while (1) |
| 56 | { |
| 57 | if (runp->subsection_id == nr) |
| 58 | /* Found it. */ |
| 59 | return runp; |
| 60 | |
| 61 | if (runp->subnext == NULL || runp->subnext->subsection_id > nr) |
| 62 | break; |
| 63 | |
| 64 | runp = runp->subnext; |
| 65 | } |
| 66 | |
| 67 | newp = (AsmScn_t *) malloc (sizeof (AsmScn_t)); |
| 68 | if (newp == NULL) |
| 69 | return NULL; |
| 70 | |
| 71 | /* Same assembler context than the original section. */ |
| 72 | newp->ctx = runp->ctx; |
| 73 | |
| 74 | /* User provided the subsectio nID. */ |
| 75 | newp->subsection_id = nr; |
| 76 | |
| 77 | /* Inherit the parent's type. */ |
| 78 | newp->type = runp->type; |
| 79 | |
| 80 | /* Pointer to the zeroth subsection. */ |
| 81 | newp->data.up = runp->subsection_id == 0 ? runp : runp->data.up; |
| 82 | |
| 83 | /* We start at offset zero. */ |
| 84 | newp->offset = 0; |
| 85 | /* And generic alignment. */ |
| 86 | newp->max_align = 1; |
| 87 | |
| 88 | /* No output yet. */ |
| 89 | newp->content = NULL; |
| 90 | |
| 91 | /* Inherit the fill pattern from the section this one is derived from. */ |
| 92 | newp->pattern = asmscn->pattern; |
| 93 | |
| 94 | /* Enqueue at the right position in the list. */ |
| 95 | newp->subnext = runp->subnext; |
| 96 | runp->subnext = newp; |
| 97 | |
| 98 | return newp; |
| 99 | } |