diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /tools/jprof/coff.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/jprof/coff.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/tools/jprof/coff.cpp b/tools/jprof/coff.cpp new file mode 100644 index 0000000000..0efa83960c --- /dev/null +++ b/tools/jprof/coff.cpp @@ -0,0 +1,93 @@ +/* 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 */ |