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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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tools/jprof/coff.cpp Normal file
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "leaky.h"
#ifdef USE_COFF
#define LANGUAGE_C
#include <sym.h>
#include <cmplrs/stsupport.h>
#include <symconst.h>
#include <filehdr.h>
#include <ldfcn.h>
#include <string.h>
#include <stdlib.h>
#ifdef IRIX4
extern "C" {
extern char *demangle(char const* in);
};
#else
#include <dem.h>
#endif
static char *Demangle(char *rawName)
{
#ifdef IRIX4
return strdup(demangle(rawName));
#else
char namebuf[4000];
demangle(rawName, namebuf);
return strdup(namebuf);
#endif
}
void leaky::readSymbols(const char *fileName)
{
LDFILE *ldptr;
ldptr = ldopen(fileName, nullptr);
if (!ldptr) {
fprintf(stderr, "%s: unable to open \"%s\"\n", applicationName,
fileName);
exit(-1);
}
if (PSYMTAB(ldptr) == 0) {
fprintf(stderr, "%s: \"%s\": has no symbol table\n", applicationName,
fileName);
exit(-1);
}
long isymMax = SYMHEADER(ldptr).isymMax;
long iextMax = SYMHEADER(ldptr).iextMax;
long iMax = isymMax + iextMax;
long alloced = 10000;
Symbol* syms = (Symbol*) malloc(sizeof(Symbol) * 10000);
Symbol* sp = syms;
Symbol* last = syms + alloced;
SYMR symr;
for (long isym = 0; isym < iMax; isym++) {
if (ldtbread(ldptr, isym, &symr) != SUCCESS) {
fprintf(stderr, "%s: can't read symbol #%d\n", applicationName,
isym);
exit(-1);
}
if (isym < isymMax) {
if ((symr.st == stStaticProc)
|| ((symr.st == stProc) &&
((symr.sc == scText) || (symr.sc == scAbs)))
|| ((symr.st == stBlock) &&
(symr.sc == scText))) {
// Text symbol. Set name field to point to the symbol name
sp->name = Demangle(ldgetname(ldptr, &symr));
sp->address = symr.value;
sp++;
if (sp >= last) {
long n = alloced + 10000;
syms = (Symbol*)
realloc(syms, (size_t) (sizeof(Symbol) * n));
last = syms + n;
sp = syms + alloced;
alloced = n;
}
}
}
}
int interesting = sp - syms;
if (!quiet) {
printf("Total of %d symbols\n", interesting);
}
usefulSymbols = interesting;
externalSymbols = syms;
}
#endif /* USE_COFF */