| 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. |
| 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 <stdlib.h> |
| 20 | |
| 21 | #include <libasmP.h> |
| 22 | #include <system.h> |
| 23 | |
| 24 | |
| 25 | AsmScn_t * |
| 26 | asm_newsubscn (asmscn, nr) |
| 27 | AsmScn_t *asmscn; |
| 28 | unsigned int nr; |
| 29 | { |
| 30 | AsmScn_t *runp; |
| 31 | AsmScn_t *newp; |
| 32 | |
| 33 | /* Just return if no section is given. The error must have been |
| 34 | somewhere else. */ |
| 35 | if (asmscn == NULL) |
| 36 | return NULL; |
| 37 | |
| 38 | /* Determine whether there is already a subsection with this number. */ |
| 39 | runp = asmscn->subsection_id == 0 ? asmscn : asmscn->data.up; |
| 40 | while (1) |
| 41 | { |
| 42 | if (runp->subsection_id == nr) |
| 43 | /* Found it. */ |
| 44 | return runp; |
| 45 | |
| 46 | if (runp->subnext == NULL || runp->subnext->subsection_id > nr) |
| 47 | break; |
| 48 | |
| 49 | runp = runp->subnext; |
| 50 | } |
| 51 | |
| 52 | newp = (AsmScn_t *) malloc (sizeof (AsmScn_t)); |
| 53 | if (newp == NULL) |
| 54 | return NULL; |
| 55 | |
| 56 | /* Same assembler context than the original section. */ |
| 57 | newp->ctx = runp->ctx; |
| 58 | |
| 59 | /* User provided the subsectio nID. */ |
| 60 | newp->subsection_id = nr; |
| 61 | |
| 62 | /* Inherit the parent's type. */ |
| 63 | newp->type = runp->type; |
| 64 | |
| 65 | /* Pointer to the zeroth subsection. */ |
| 66 | newp->data.up = runp->subsection_id == 0 ? runp : runp->data.up; |
| 67 | |
| 68 | /* We start at offset zero. */ |
| 69 | newp->offset = 0; |
| 70 | /* And generic alignment. */ |
| 71 | newp->max_align = 1; |
| 72 | |
| 73 | /* No output yet. */ |
| 74 | newp->content = NULL; |
| 75 | |
| 76 | /* Inherit the fill pattern from the section this one is derived from. */ |
| 77 | newp->pattern = asmscn->pattern; |
| 78 | |
| 79 | /* Enqueue at the right position in the list. */ |
| 80 | newp->subnext = runp->subnext; |
| 81 | runp->subnext = newp; |
| 82 | |
| 83 | return newp; |
| 84 | } |