contrib/elftoolchain/libdwarf/dwarf_pro_lineno.c

   1 /*-
   2  * Copyright (c) 2010 Kai Wang
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include "_libdwarf.h"
  28
  29 ELFTC_VCSID("$Id: dwarf_pro_lineno.c 2973 2013-12-23 06:46:16Z kaiwang27 $");
  30
  31 Dwarf_Unsigned
  32 dwarf_add_line_entry(Dwarf_P_Debug dbg, Dwarf_Unsigned file,
  33     Dwarf_Addr off, Dwarf_Unsigned lineno, Dwarf_Signed column,
  34     Dwarf_Bool is_stmt, Dwarf_Bool basic_block, Dwarf_Error *error)
  35 {
  36         Dwarf_LineInfo li;
  37         Dwarf_Line ln;
  38
  39         if (dbg == NULL) {
  40                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  41                 return (DW_DLV_NOCOUNT);
  42         }
  43
  44         li = dbg->dbgp_lineinfo;
  45
  46         ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next);
  47
  48         if (ln == NULL || ln->ln_addr > off) {
  49                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  50                 return (DW_DLV_NOCOUNT);
  51         }
  52
  53         if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
  54                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
  55                 return (DW_DLV_NOCOUNT);
  56         }
  57         ln->ln_li     = li;
  58         ln->ln_addr   = off;
  59         ln->ln_symndx = 0;
  60         ln->ln_fileno = file;
  61         ln->ln_lineno = lineno;
  62         ln->ln_column = column;
  63         ln->ln_bblock = basic_block != 0;
  64         ln->ln_stmt   = is_stmt != 0;
  65         ln->ln_endseq = 0;
  66         STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
  67         li->li_lnlen++;
  68
  69         return (DW_DLV_OK);
  70 }
  71
  72 Dwarf_Unsigned
  73 dwarf_lne_set_address(Dwarf_P_Debug dbg, Dwarf_Addr offs, Dwarf_Unsigned symndx,
  74     Dwarf_Error *error)
  75 {
  76         Dwarf_LineInfo li;
  77         Dwarf_Line ln;
  78
  79         if (dbg == NULL || symndx == 0) {
  80                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
  81                 return (DW_DLV_NOCOUNT);
  82         }
  83
  84         li = dbg->dbgp_lineinfo;
  85
  86         if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
  87                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
  88                 return (DW_DLV_NOCOUNT);
  89         }
  90         ln->ln_li = li;
  91         ln->ln_addr = offs;
  92         ln->ln_symndx = symndx;
  93         STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
  94         li->li_lnlen++;
  95
  96         return (DW_DLV_OK);
  97 }
  98
  99 Dwarf_Unsigned
 100 dwarf_lne_end_sequence(Dwarf_P_Debug dbg, Dwarf_Addr addr, Dwarf_Error *error)
 101 {
 102         Dwarf_LineInfo li;
 103         Dwarf_Line ln;
 104
 105         if (dbg == NULL) {
 106                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
 107                 return (DW_DLV_NOCOUNT);
 108         }
 109
 110         li = dbg->dbgp_lineinfo;
 111
 112         ln = STAILQ_LAST(&li->li_lnlist, _Dwarf_Line, ln_next);
 113         if (ln && ln->ln_addr >= addr) {
 114                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
 115                 return (DW_DLV_NOCOUNT);
 116         }
 117
 118         if ((ln = calloc(1, sizeof(struct _Dwarf_Line))) == NULL) {
 119                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
 120                 return (DW_DLV_NOCOUNT);
 121         }
 122         ln->ln_li = li;
 123         ln->ln_addr = addr;
 124         ln->ln_endseq = 1;
 125         STAILQ_INSERT_TAIL(&li->li_lnlist, ln, ln_next);
 126         li->li_lnlen++;
 127
 128         return (DW_DLV_OK);
 129 }
 130
 131 Dwarf_Unsigned
 132 dwarf_add_directory_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Error *error)
 133 {
 134         Dwarf_LineInfo li;
 135
 136         if (dbg == NULL || name == NULL || strlen(name) == 0) {
 137                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
 138                 return (DW_DLV_NOCOUNT);
 139         }
 140
 141         li = dbg->dbgp_lineinfo;
 142
 143         li->li_incdirs = realloc(li->li_incdirs, (li->li_inclen + 1) *
 144             sizeof(char *));
 145         if (li->li_incdirs == NULL) {
 146                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
 147                 return (DW_DLV_NOCOUNT);
 148         }
 149         if ((li->li_incdirs[li->li_inclen] = strdup(name)) == NULL) {
 150                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
 151                 return (DW_DLV_NOCOUNT);
 152         }
 153
 154         return (++li->li_inclen);
 155 }
 156
 157 Dwarf_Unsigned
 158 dwarf_add_file_decl(Dwarf_P_Debug dbg, char *name, Dwarf_Unsigned dirndx,
 159     Dwarf_Unsigned mtime, Dwarf_Unsigned size, Dwarf_Error *error)
 160 {
 161         Dwarf_LineInfo li;
 162         Dwarf_LineFile lf;
 163
 164         if (dbg == NULL || name == NULL || strlen(name) == 0) {
 165                 DWARF_SET_ERROR(dbg, error, DW_DLE_ARGUMENT);
 166                 return (DW_DLV_NOCOUNT);
 167         }
 168
 169         li = dbg->dbgp_lineinfo;
 170
 171         if ((lf = malloc(sizeof(struct _Dwarf_LineFile))) == NULL) {
 172                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
 173                 return (DW_DLE_MEMORY);
 174         }
 175
 176         if ((lf->lf_fname = strdup(name)) == NULL) {
 177                 free(lf);
 178                 DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
 179                 return (DW_DLE_MEMORY);
 180         }
 181         lf->lf_dirndx = dirndx;
 182         lf->lf_mtime = mtime;
 183         lf->lf_size = size;
 184         STAILQ_INSERT_TAIL(&li->li_lflist, lf, lf_next);
 185
 186         return (++li->li_lflen);
 187 }