Made gprof use bfd instead. This is the first step in allowing cross-hosted
gprof use.
This commit is contained in:
Sean Eric Fagan
parent
39ada6fced
commit
811e3c6a86
108
gprof/gprof.c
108
gprof/gprof.c
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@ -185,24 +185,26 @@ main(argc, argv)
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*/
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getnfile()
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{
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FILE *nfile;
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bfd *abfd;
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int valcmp();
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nfile = fopen( a_outname ,"r");
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if (nfile == NULL) {
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perror( a_outname );
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abfd = bfd_openr (a_outname, NULL);
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if (abfd == NULL) {
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perror (a_outname);
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done();
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}
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fread(&xbuf, 1, sizeof(xbuf), nfile);
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if (N_BADMAG(xbuf)) {
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fprintf(stderr, "%s: %s: bad format\n", whoami , a_outname );
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if (!bfd_check_format (abfd, bfd_object)) {
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fprintf (stderr, "%s: %s: bad format\n", whoami, a_outname);
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done();
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}
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getstrtab(nfile);
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getsymtab(nfile);
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gettextspace( nfile );
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/* getstrtab(nfile); */
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getsymtab(abfd);
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gettextspace( abfd );
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qsort(nl, nname, sizeof(nltype), valcmp);
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fclose(nfile);
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# ifdef DEBUG
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if ( debug & AOUTDEBUG ) {
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register int j;
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@ -214,6 +216,7 @@ getnfile()
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# endif DEBUG
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}
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#if 0
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getstrtab(nfile)
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FILE *nfile;
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{
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@ -236,27 +239,30 @@ getstrtab(nfile)
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done();
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}
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}
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#endif /* 0 */
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/*
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* Read in symbol table
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*/
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getsymtab(nfile)
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FILE *nfile;
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getsymtab(abfd)
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bfd *abfd;
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{
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register long i;
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int askfor;
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struct nlist nbuf;
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int nosyms;
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asymbol **syms;
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i = get_symtab_upper_bound (abfd); /* This will probably give us more
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* than we need, but that's ok.
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*/
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syms = malloc (i);
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nosyms = bfd_canonicalize_symtab (abfd, syms);
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/* pass1 - count symbols */
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fseek(nfile, (long)N_SYMOFF(xbuf), 0);
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nname = 0;
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for (i = xbuf.a_syms; i > 0; i -= sizeof(struct nlist)) {
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fread(&nbuf, sizeof(nbuf), 1, nfile);
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if ( ! funcsymbol( &nbuf ) ) {
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for (i = 0; i < nosyms; i++) {
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if (!funcsymbol (syms[i]))
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continue;
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}
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nname++;
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}
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if (nname == 0) {
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fprintf(stderr, "%s: %s: no symbols\n", whoami , a_outname );
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done();
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@ -270,22 +276,20 @@ getsymtab(nfile)
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}
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/* pass2 - read symbols */
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fseek(nfile, (long)N_SYMOFF(xbuf), 0);
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npe = nl;
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nname = 0;
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for (i = xbuf.a_syms; i > 0; i -= sizeof(struct nlist)) {
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fread(&nbuf, sizeof(nbuf), 1, nfile);
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if ( ! funcsymbol( &nbuf ) ) {
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for (i = 0; i < nosyms; i++) {
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if (!funcsymbol (syms[i])) {
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# ifdef DEBUG
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if ( debug & AOUTDEBUG ) {
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printf( "[getsymtab] rejecting: 0x%x %s\n" ,
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nbuf.n_type , strtab + nbuf.n_un.n_strx );
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syms[i]->value, syms[i]->name);
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}
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# endif DEBUG
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continue;
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}
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npe->value = nbuf.n_value;
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npe->name = strtab+nbuf.n_un.n_strx;
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npe->value = syms[i]->value + syms[i]->section->vma;
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npe->name = syms[i]->name;
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# ifdef DEBUG
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if ( debug & AOUTDEBUG ) {
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printf( "[getsymtab] %d %s 0x%08x\n" ,
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@ -298,34 +302,35 @@ getsymtab(nfile)
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npe->value = -1;
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}
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/*
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/*
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* read in the text space of an a.out file
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*/
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gettextspace( nfile )
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FILE *nfile;
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gettextspace( abfd )
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bfd *abfd;
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{
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char *malloc();
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asection *texsec;
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if ( cflag == 0 ) {
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return;
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}
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textspace = (u_char *) malloc( xbuf.a_text );
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texsec = bfd_get_section_by_name (abfd, ".text");
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if (texsec == NULL) {
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return;
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}
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textspace = (u_char *) malloc( texsec->size );
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if ( textspace == 0 ) {
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fprintf( stderr , "%s: ran out room for %d bytes of text space: " ,
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whoami , xbuf.a_text );
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whoami , texsec->size);
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fprintf( stderr , "can't do -c\n" );
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return;
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}
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(void) fseek( nfile , N_TXTOFF( xbuf ) , 0 );
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if ( fread( textspace , 1 , xbuf.a_text , nfile ) != xbuf.a_text ) {
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fprintf( stderr , "%s: couldn't read text space: " , whoami );
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fprintf( stderr , "can't do -c\n" );
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free( textspace );
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textspace = 0;
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return;
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}
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bfd_get_section_contents (abfd, texsec, textspace, texsec->filepos,
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texsec->size);
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}
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/*
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/*
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* information from a gmon.out file is in two parts:
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* an array of sampling hits within pc ranges,
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* and the arcs.
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@ -656,8 +661,8 @@ alignentries()
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}
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bool
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funcsymbol( nlistp )
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struct nlist *nlistp;
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funcsymbol( symp )
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asymbol *symp;
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{
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extern char *strtab; /* string table from a.out */
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extern int aflag; /* if static functions aren't desired */
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@ -667,16 +672,23 @@ funcsymbol( nlistp )
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* must be a text symbol,
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* and static text symbols don't qualify if aflag set.
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*/
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if ( ! ( ( nlistp -> n_type == ( N_TEXT | N_EXT ) )
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|| ( ( nlistp -> n_type == N_TEXT ) && ( aflag == 0 ) ) ) ) {
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if (!symp->section)
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return FALSE;
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if (!aflag && (symp->flags&BSF_LOCAL)) {
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#ifdef DEBUG
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fprintf (stderr, "%s(%d): %s: not a function\n", __FILE__, __LINE__, symp->name);
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#endif
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return FALSE;
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}
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/*
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* can't have any `funny' characters in name,
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* where `funny' includes `.', .o file names
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* and `$', pascal labels.
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*/
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for ( name = strtab + nlistp -> n_un.n_strx ; *name ; name += 1 ) {
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for (name = symp->name; *name; name++) {
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if ( *name == '.' || *name == '$' ) {
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return FALSE;
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}
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@ -19,10 +19,11 @@
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* @(#)gprof.h 5.9 (Berkeley) 6/1/90
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <a.out.h>
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#include <stdio.h>
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#include "bfd.h"
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#include "gmon.h"
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#ifdef MACHINE_H
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@ -164,7 +165,6 @@ double scale; /* scale factor converting samples to pc
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values: each sample covers scale bytes */
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char *strtab; /* string table in core */
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off_t ssiz; /* size of the string table */
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struct exec xbuf; /* exec header of a.out */
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unsigned char *textspace; /* text space of a.out in core */
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/*
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