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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Kipp E.B. Hickman.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "leaky.h"
#ifdef USE_BFD
#include <stdio.h>
#include <string.h>
#include <bfd.h>
extern "C" {
char *cplus_demangle (const char *mangled, int options);
}
void leaky::ReadSymbols(const char *aFileName, u_long aBaseAddress)
{
static bfd_boolean kDynamic = (bfd_boolean) false;
static int firstTime = 1;
if (firstTime) {
firstTime = 0;
bfd_init ();
}
bfd* lib = bfd_openr(aFileName, NULL);
if (NULL == lib) {
return;
}
char **matching;
if (!bfd_check_format_matches(lib, bfd_object, &matching)) {
bfd_close(lib);
return;
}
asymbol* store;
store = bfd_make_empty_symbol(lib);
// read mini symbols
PTR minisyms;
unsigned int size;
long symcount = bfd_read_minisymbols(lib, kDynamic, &minisyms, &size);
int initialSymbols = usefulSymbols;
if (NULL == externalSymbols) {
externalSymbols = (Symbol*) malloc(sizeof(Symbol) * 10000);
numExternalSymbols = 10000;
}
Symbol* sp = externalSymbols + usefulSymbols;
Symbol* lastSymbol = externalSymbols + numExternalSymbols;
// Scan symbols
bfd_byte* from = (bfd_byte *) minisyms;
bfd_byte* fromend = from + symcount * size;
for (; from < fromend; from += size) {
asymbol *sym;
sym = bfd_minisymbol_to_symbol(lib, kDynamic, (const PTR) from, store);
symbol_info syminfo;
bfd_get_symbol_info (lib, sym, &syminfo);
// if ((syminfo.type == 'T') || (syminfo.type == 't')) {
const char* nm = bfd_asymbol_name(sym);
if (nm && nm[0]) {
char* dnm = NULL;
if (strncmp("__thunk", nm, 7)) {
dnm = cplus_demangle(nm, 1);
}
sp->Init(dnm ? dnm : nm, syminfo.value + aBaseAddress);
sp++;
if (sp >= lastSymbol) {
long n = numExternalSymbols + 10000;
externalSymbols = (Symbol*)
realloc(externalSymbols, (size_t) (sizeof(Symbol) * n));
lastSymbol = externalSymbols + n;
sp = externalSymbols + numExternalSymbols;
numExternalSymbols = n;
}
}
// }
}
bfd_close(lib);
int interesting = sp - externalSymbols;
if (!quiet) {
printf("%s provided %d symbols\n", aFileName,
interesting - initialSymbols);
}
usefulSymbols = interesting;
}
#endif /* USE_BFD */
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