forked from Imagelibrary/binutils-gdb
Lots of changes from David Mosberger-Tang; see ChangeLog and NOTES for details:
Alpha support. Long options. New file format to support more information; backwards compatibility. Line-level profiling, on systems where bfd_find_nearest_line works. Selective display of data.
This commit is contained in:
Ken Raeburn
198
gprof/tahoe.c
198
gprof/tahoe.c
@@ -16,44 +16,22 @@
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* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include "gprof.h"
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#include "time_host.h"
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#ifndef lint
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static char sccsid[] = "@(#)tahoe.c 1.5 (Berkeley) 6/1/90";
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#endif /* not lint */
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/*
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* A symbol to be the child of indirect callf:
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*/
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Sym indirectchild;
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#include "gprof.h"
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/*
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* a namelist entry to be the child of indirect callf
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*/
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nltype indirectchild = {
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"(*)" , /* the name */
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(unsigned long) 0 , /* the pc entry point */
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(unsigned long) 0 , /* entry point aligned to histogram */
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(double) 0.0 , /* ticks in this routine */
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(double) 0.0 , /* cumulative ticks in children */
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(long) 0 , /* how many times called */
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(long) 0 , /* how many calls to self */
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(double) 1.0 , /* propagation fraction */
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(double) 0.0 , /* self propagation time */
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(double) 0.0 , /* child propagation time */
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(bool) 0 , /* print flag */
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(int) 0 , /* index in the graph list */
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(int) 0 , /* graph call chain top-sort order */
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(int) 0 , /* internal number of cycle on */
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(struct nl *) &indirectchild , /* pointer to head of cycle */
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(struct nl *) 0 , /* pointer to next member of cycle */
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(arctype *) 0 , /* list of caller arcs */
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(arctype *) 0 /* list of callee arcs */
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};
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operandenum
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operandmode( modep )
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operandmode(modep)
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unsigned char *modep;
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{
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long usesreg = ((long)*modep) & 0xf;
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long usesreg = ((long)*modep) & 0xf;
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switch ( ((long)*modep) >> 4 ) {
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switch (((long)*modep) >> 4) {
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case 0:
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case 1:
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case 2:
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@@ -68,31 +46,31 @@ operandmode( modep )
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case 7:
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return autodec;
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case 8:
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return ( usesreg != 0xe ? autoinc : immediate );
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return usesreg != 0xe ? autoinc : immediate;
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case 9:
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return ( usesreg != PC ? autoincdef : absolute );
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return usesreg != PC ? autoincdef : absolute;
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case 10:
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return ( usesreg != PC ? bytedisp : byterel );
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return usesreg != PC ? bytedisp : byterel;
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case 11:
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return ( usesreg != PC ? bytedispdef : bytereldef );
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return usesreg != PC ? bytedispdef : bytereldef;
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case 12:
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return ( usesreg != PC ? worddisp : wordrel );
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return usesreg != PC ? worddisp : wordrel;
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case 13:
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return ( usesreg != PC ? worddispdef : wordreldef );
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return usesreg != PC ? worddispdef : wordreldef;
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case 14:
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return ( usesreg != PC ? longdisp : longrel );
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return usesreg != PC ? longdisp : longrel;
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case 15:
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return ( usesreg != PC ? longdispdef : longreldef );
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return usesreg != PC ? longdispdef : longreldef;
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}
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/* NOTREACHED */
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}
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char *
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operandname( mode )
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operandname(mode)
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operandenum mode;
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{
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switch ( mode ) {
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switch (mode) {
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case literal:
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return "literal";
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case indexed:
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@@ -140,11 +118,11 @@ operandname( mode )
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}
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long
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operandlength( modep )
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operandlength(modep)
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unsigned char *modep;
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{
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switch ( operandmode( modep ) ) {
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switch (operandmode(modep)) {
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case literal:
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case reg:
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case regdef:
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@@ -170,16 +148,16 @@ operandlength( modep )
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case longreldef:
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return 5;
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case indexed:
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return 1+operandlength( modep + 1 );
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return 1+operandlength(modep + 1);
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}
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/* NOTREACHED */
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}
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unsigned long
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reladdr( modep )
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bfd_vma
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reladdr(modep)
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char *modep;
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{
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operandenum mode = operandmode( modep );
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operandenum mode = operandmode(modep);
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char *cp;
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short *sp;
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long *lp;
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@@ -187,82 +165,81 @@ reladdr( modep )
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long value = 0;
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cp = modep;
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cp += 1; /* skip over the mode */
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switch ( mode ) {
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++cp; /* skip over the mode */
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switch (mode) {
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default:
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fprintf( stderr , "[reladdr] not relative address\n" );
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return (unsigned long) modep;
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fprintf(stderr, "[reladdr] not relative address\n");
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return (bfd_vma) modep;
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case byterel:
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return (unsigned long) ( cp + sizeof *cp + *cp );
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return (bfd_vma) (cp + sizeof *cp + *cp);
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case wordrel:
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for (i = 0; i < sizeof *sp; i++)
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value = (value << 8) + (cp[i] & 0xff);
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return (unsigned long) ( cp + sizeof *sp + value );
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return (bfd_vma) (cp + sizeof *sp + value);
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case longrel:
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for (i = 0; i < sizeof *lp; i++)
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value = (value << 8) + (cp[i] & 0xff);
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return (unsigned long) ( cp + sizeof *lp + value );
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return (bfd_vma) (cp + sizeof *lp + value);
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}
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}
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findcall( parentp , p_lowpc , p_highpc )
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nltype *parentp;
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unsigned long p_lowpc;
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unsigned long p_highpc;
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find_call(parent, p_lowpc, p_highpc)
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Sym *parent;
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bfd_vma p_lowpc;
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bfd_vma p_highpc;
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{
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unsigned char *instructp;
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long length;
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nltype *childp;
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operandenum mode;
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operandenum firstmode;
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unsigned long destpc;
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unsigned char *instructp;
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long length;
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Sym *child;
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operandenum mode;
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operandenum firstmode;
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bfd_vma destpc;
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static bool inited = FALSE;
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if ( textspace == 0 ) {
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if (!inited) {
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inited = TRUE;
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sym_init(&indirectchild);
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indirectchild.cg.prop.fract = 1.0;
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indirectchild.cg.cyc.head = &indirectchild;
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} /* if */
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if (textspace == 0) {
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return;
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}
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if ( p_lowpc < s_lowpc ) {
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if (p_lowpc < s_lowpc) {
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p_lowpc = s_lowpc;
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}
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if ( p_highpc > s_highpc ) {
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if (p_highpc > s_highpc) {
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p_highpc = s_highpc;
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}
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# ifdef DEBUG
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if ( debug & CALLDEBUG ) {
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printf( "[findcall] %s: 0x%x to 0x%x\n" ,
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parentp -> name , p_lowpc , p_highpc );
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}
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# endif DEBUG
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for ( instructp = textspace + p_lowpc ;
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DBG(CALLDEBUG, printf("[findcall] %s: 0x%x to 0x%x\n",
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parent -> name, p_lowpc, p_highpc));
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for ( instructp = textspace + p_lowpc ;
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instructp < textspace + p_highpc ;
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instructp += length ) {
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instructp += length) {
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length = 1;
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if ( *instructp == CALLF ) {
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if (*instructp == CALLF) {
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/*
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* maybe a callf, better check it out.
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* skip the count of the number of arguments.
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*/
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# ifdef DEBUG
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if ( debug & CALLDEBUG ) {
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printf( "[findcall]\t0x%x:callf" , instructp - textspace );
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}
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# endif DEBUG
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firstmode = operandmode( instructp+length );
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switch ( firstmode ) {
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DBG(CALLDEBUG, printf("[findcall]\t0x%x:callf",
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instructp - textspace));
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firstmode = operandmode(instructp+length);
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switch (firstmode) {
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case literal:
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case immediate:
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break;
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default:
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goto botched;
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}
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length += operandlength( instructp+length );
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mode = operandmode( instructp + length );
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# ifdef DEBUG
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if ( debug & CALLDEBUG ) {
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printf( "\tfirst operand is %s", operandname( firstmode ) );
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printf( "\tsecond operand is %s\n" , operandname( mode ) );
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}
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# endif DEBUG
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switch ( mode ) {
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length += operandlength(instructp+length);
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mode = operandmode(instructp + length);
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DBG(CALLDEBUG,
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printf("\tfirst operand is %s", operandname(firstmode));
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printf("\tsecond operand is %s\n", operandname(mode));
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);
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switch (mode) {
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case regdef:
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case bytedispdef:
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case worddispdef:
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@@ -278,8 +255,8 @@ findcall( parentp , p_lowpc , p_highpc )
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* [are there others that we miss?,
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* e.g. arrays of pointers to functions???]
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*/
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addarc( parentp , &indirectchild , (long) 0 );
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length += operandlength( instructp + length );
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arc_add(parent, &indirectchild, (long) 0);
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length += operandlength(instructp + length);
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continue;
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case byterel:
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case wordrel:
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@@ -289,24 +266,21 @@ findcall( parentp , p_lowpc , p_highpc )
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* check that this is the address of
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* a function.
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*/
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destpc = reladdr( instructp+length )
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- (unsigned long) textspace;
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if ( destpc >= s_lowpc && destpc <= s_highpc ) {
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childp = nllookup( destpc );
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# ifdef DEBUG
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if ( debug & CALLDEBUG ) {
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printf( "[findcall]\tdestpc 0x%x" , destpc );
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printf( " childp->name %s" , childp -> name );
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printf( " childp->value 0x%x\n" ,
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childp -> value );
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}
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# endif DEBUG
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if ( childp -> value == destpc ) {
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destpc = reladdr(instructp+length)
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- (bfd_vma) textspace;
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if (destpc >= s_lowpc && destpc <= s_highpc) {
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child = sym_lookup(destpc);
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DBG(CALLDEBUG,
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printf("[findcall]\tdestpc 0x%x", destpc);
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printf(" child->name %s", child -> name);
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printf(" child->addr 0x%x\n", child -> addr);
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);
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if (child -> addr == destpc) {
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/*
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* a hit
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*/
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addarc( parentp , childp , (long) 0 );
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length += operandlength( instructp + length );
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arc_add(parent, child, (long) 0);
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length += operandlength(instructp + length);
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continue;
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}
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goto botched;
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@@ -322,11 +296,7 @@ findcall( parentp , p_lowpc , p_highpc )
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/*
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* something funny going on.
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*/
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# ifdef DEBUG
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if ( debug & CALLDEBUG ) {
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printf( "[findcall]\tbut it's a botch\n" );
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}
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# endif DEBUG
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DBG(CALLDEBUG, printf("[findcall]\tbut it's a botch\n"));
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length = 1;
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continue;
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}
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