/*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1983, 1993, 2001
+ * The 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.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
*/
#include "gprof.h"
+#include "search_list.h"
+#include "source.h"
+#include "symtab.h"
#include "cg_arcs.h"
-#include "core.h"
+#include "corefile.h"
#include "hist.h"
-#include "symtab.h"
+static int i386_iscall (unsigned char *);
+void i386_find_call (Sym *, bfd_vma, bfd_vma);
-int
-DEFUN (iscall, (ip), unsigned char *ip)
+static int
+i386_iscall (unsigned char *ip)
{
- if (*ip == 0xeb || *ip == 0x9a)
+ if (*ip == 0xe8)
return 1;
return 0;
}
void
-find_call (parent, p_lowpc, p_highpc)
- Sym *parent;
- bfd_vma p_lowpc;
- bfd_vma p_highpc;
+i386_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
{
unsigned char *instructp;
- long length;
Sym *child;
- bfd_vma destpc;
+ bfd_vma pc, destpc;
- 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));
- for (instructp = (unsigned char *) core_text_space + p_lowpc;
- instructp < (unsigned char *) core_text_space + p_highpc;
- instructp += length)
+ parent->name, (unsigned long) p_lowpc,
+ (unsigned long) p_highpc));
+
+ for (pc = p_lowpc; pc < p_highpc; ++pc)
{
- length = 1;
- if (iscall (instructp))
+ instructp = (unsigned char *) core_text_space + pc - core_text_sect->vma;
+ if (i386_iscall (instructp))
{
DBG (CALLDEBUG,
- printf ("[findcall]\t0x%x:callf",
- instructp - (unsigned char *) core_text_space));
- length = 4;
+ printf ("[findcall]\t0x%lx:call", (unsigned long) pc));
/*
* regular pc relative addressing
- * check that this is the address of
+ * check that this is the address of
* a function.
*/
- destpc = ((bfd_vma) instructp + 5 - (bfd_vma) core_text_space);
- if (destpc >= s_lowpc && destpc <= s_highpc)
+
+ destpc = bfd_get_32 (core_bfd, instructp + 1) + pc + 5;
+ if (hist_check_address (destpc))
{
child = sym_lookup (&symtab, destpc);
- DBG (CALLDEBUG,
- printf ("[findcall]\tdestpc 0x%lx", destpc);
- printf (" child->name %s", child->name);
- printf (" child->addr 0x%lx\n", child->addr);
- );
- if (child->addr == destpc)
+ if (child && child->addr == destpc)
{
/*
* a hit
*/
- arc_add (parent, child, (long) 0);
- length += 4; /* constant lengths */
+ DBG (CALLDEBUG,
+ printf ("\tdestpc 0x%lx (%s)\n",
+ (unsigned long) destpc, child->name));
+ arc_add (parent, child, (unsigned long) 0);
+ instructp += 4; /* call is a 5 byte instruction */
continue;
}
- goto botched;
}
/*
* else:
- * it looked like a callf,
- * but it wasn't to anywhere.
- */
- botched:
- /*
- * something funny going on.
+ * 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 ("[findcall]\tbut it's a botch\n"));
- length = 1;
- continue;
+ DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
}
}
}
projects / deliverable / binutils-gdb.git / blobdiff