darling-gdb/gprof/i386.c
Ian Lance Taylor c3de2a19e8 Tue Feb 3 14:25:25 1998 Brent Baccala <baccala@freesoft.org>
Make it possible to build a cross gprof, although a few cases are
	still not handled:
	* configure.in: Don't set MY_TARGET.
	* gprof.h: Don't include MACHINE_H.  Don't define FOPEN_RB or
	FOPEN_WB; just get them from sysdep.h.
	* core.h (min_insn_size, offset_to_code): Declare.
	* core.c (MIN_INSN_SIZE): Don't define.
	(min_insn_size, offset_to_code): New variables.
	(core_init): Initialize min_insn_size and offset_to_code.
	(find_call): New function.
	(core_create_line_syms): Don't use min_dist.  Set is_static in
	pass 2.
	* hist.c (UNITS_TO_CODE): Define.
	* gprof.c (default_excluded_list): Add "__mcount_internal".
	* gmon.h: Change TARGET_alpha to __alpha__.
	* hertz.h: Ifdef MACH, define hertz as HZ.
	* alpha.c (alpha_Instruction): Rename from Instruction.  Change
	all references.
	(alpha_find_call): Rename from find_call.
	* alpha.h: Remove.
	* dummy.c, dummy.h: Remove.
	* i386.c (i386_iscall): Rename from iscall.  Change all
	references.  Check for call instruction, not jump or lcall.
	(i386_find_call): Rename from find_call.  Correct for VMA.
	Correct call destination computation.  Don't dereference symbol if
	it is NULL.
	* i386.h: Remove.
	* ns532.c, ns532.h: Remove.
	* sparc.c (CALL): Define.
	(sparc_find_call): Rename from find_call.
	* sparc.h: Remove.
	* tahoe.c: Include cg_arcs.h, core.h, hist.h, and symtab.h.  Don't
	include time_host.h.
	(CALLF, PC): Define.
	(enum tahoe_opermodes, tahoe_operandenum): Define.  Rename all
	references to opermodes or operandenum to these.
	(tahoe_operandmode): Rename from operandmode.  Call abort if
	switch does not return.
	(tahoe_operandname): Rename from operandname.  Call abort if
	switch does not return.
	(tahoe_operandlength): Rename from operandlength.  Call abort if
	switch does not return.
	(tahoe_reladdr): Rename from reladdr.
	(tahoe_find_call): Rename from find_call.  Use core_text_space
	rather than textspace.
	* tahoe.h: Remove.
	* vax.c (CALLS, PC): Define.
	(enum opermodes, operandenum, struct modebyte): Define.
	(vax_operandmode): Rename from operandmode.  Call abort if switch
	does not return.
	(vax_operandname): Rename from operandname.  Call abort if switch
	does not return.
	(vax_operandlength): Rename from operandlength.  Call abort if
	switch does not return.
	(vax_reladdr): Rename from reladdr.
	(vax_find_call): Rename from find_call.
	* vax.h: Remove.
	* Makefile.am (AUTOMAKE_OPTIONS): Set to cygnus.
	(MY_TARGET): Remove.
	(INCLUDES): Remove -DTARGET_$(MY_TARGET) and -DMACHINE_H=
	\"$(MY_TARGET).h\".
	(gprof_SOURCES): Add i386.c, alpha.c, vax.c, tahoe.c, sparc.c.
	(gprof_DEPENDENCIES): Remove $(MY_TARGET).o.
	(gprof_LDADD): Likewise.
	(noinst_HEADERS): Remove alpha.h, i386.h, ns532.h, sparc.h,
	tahoe.h, vax.h, dummy.h.
	(EXTRA_DIST): Remove alpha.c, i386.c, ns532.c, sparc.c, tahoe.c,
	vax.c, dummy.c.
	($(OBJECTS)): Don't depend upon $(MY_TARGET).h.
	($(MY_TARGET).o): Remove target.
	(i386.o, alpha.o, vax.o, tahoe.o, sparc.o): New targets.
	* configure, Makefile.in, aclocal.m4: Rebuild.
1998-02-03 19:52:41 +00:00

105 lines
2.8 KiB
C

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that: (1) source distributions retain this entire copyright
* notice and comment, and (2) distributions including binaries display
* the following acknowledgement: ``This product includes software
* developed by the University of California, Berkeley and its contributors''
* in the documentation or other materials provided with the distribution
* and in all advertising materials mentioning features or use of this
* software. Neither the name of the University nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include "gprof.h"
#include "cg_arcs.h"
#include "core.h"
#include "hist.h"
#include "symtab.h"
int
DEFUN (i386_iscall, (ip), unsigned char *ip)
{
if (*ip == 0xe8)
return 1;
return 0;
}
void
i386_find_call (parent, p_lowpc, p_highpc)
Sym *parent;
bfd_vma p_lowpc;
bfd_vma p_highpc;
{
unsigned char *instructp;
Sym *child;
bfd_vma destpc, delta;
if (core_text_space == 0)
{
return;
}
if (p_lowpc < s_lowpc)
{
p_lowpc = s_lowpc;
}
if (p_highpc > s_highpc)
{
p_highpc = s_highpc;
}
DBG (CALLDEBUG, printf ("[findcall] %s: 0x%lx to 0x%lx\n",
parent->name, p_lowpc, p_highpc));
delta = (bfd_vma) core_text_space - core_text_sect->vma;
for (instructp = (unsigned char *) (p_lowpc + delta);
instructp < (unsigned char *) (p_highpc + delta);
instructp ++)
{
if (i386_iscall (instructp))
{
DBG (CALLDEBUG,
printf ("[findcall]\t0x%x:call",
instructp - (unsigned char *) delta));
/*
* regular pc relative addressing
* check that this is the address of
* a function.
*/
destpc = ((bfd_vma) bfd_get_32 (core_bfd, instructp + 1)
+ (bfd_vma) instructp - (bfd_vma) delta + 5);
if (destpc >= s_lowpc && destpc <= s_highpc)
{
child = sym_lookup (&symtab, destpc);
if (child && child->addr == destpc)
{
/*
* a hit
*/
DBG (CALLDEBUG,
printf ("\tdestpc 0x%lx (%s)\n", destpc, child->name));
arc_add (parent, child, (long) 0);
instructp += 4; /* call is a 5 byte instruction */
continue;
}
}
/*
* else:
* it looked like a callf, but it:
* a) wasn't actually a callf, or
* b) didn't point to a known function in the symtab, or
* c) something funny is going on.
*/
DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
}
}
}