/*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1983, 1993, 1998
+ * 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"
/*
* Opcodes of the call instructions:
#define Jxx_FUNC_RET 2
#define Jxx_FUNC_JSR_COROUTINE 3
-typedef union {
- struct {
- unsigned other : 26;
- unsigned op_code : 6;
- } a; /* any format */
- struct {
- signed disp : 21;
- unsigned ra : 5;
- unsigned op_code : 6;
- } b; /* branch format */
- struct {
- signed hint : 14;
- unsigned func : 2;
- unsigned rb : 5;
- unsigned ra : 5;
- unsigned op_code : 6;
- } j; /* jump format */
-} Instruction;
+/* *INDENT-OFF* */
+/* Here to document only. We can't use this when cross compiling as
+ the bitfield layout might not be the same as native.
+
+ typedef union
+ {
+ struct
+ {
+ unsigned other:26;
+ unsigned op_code:6;
+ }
+ a; -- any format
+ struct
+ {
+ int disp:21;
+ unsigned ra:5;
+ unsigned op_code:6;
+ }
+ b; -- branch format
+ struct
+ {
+ int hint:14;
+ unsigned func:2;
+ unsigned rb:5;
+ unsigned ra:5;
+ unsigned op_code:6;
+ }
+ j; -- jump format
+ }
+ alpha_Instruction;
+*/
+/* *INDENT-ON* */
static Sym indirect_child;
+void alpha_find_call (Sym *, bfd_vma, bfd_vma);
/*
* On the Alpha we can only detect PC relative calls, which are
* potentially call integer division routines, for example.)
*/
void
-find_call(parent, p_lowpc, p_highpc)
- Sym *parent;
- bfd_vma p_lowpc;
- bfd_vma p_highpc;
+alpha_find_call (Sym *parent, bfd_vma p_lowpc, bfd_vma p_highpc)
{
- static bfd_vma delta = 0;
- bfd_vma dest_pc;
- Instruction *pc;
- Sym *child;
-
- if (!delta) {
- delta = (bfd_vma) core_text_space - core_text_sect->vma;
+ bfd_vma pc, dest_pc;
+ unsigned int insn;
+ Sym *child;
- sym_init(&indirect_child);
- indirect_child.name = "<indirect child>";
- indirect_child.cg.prop.fract = 1.0;
- indirect_child.cg.cyc.head = &indirect_child;
- } /* if */
-
- if (!core_text_space) {
- return;
- } /* if */
- if (p_lowpc < s_lowpc) {
- p_lowpc = s_lowpc;
- } /* if */
- if (p_highpc > s_highpc) {
- p_highpc = s_highpc;
- } /* if */
- DBG(CALLDEBUG, printf("[find_call] %s: 0x%lx to 0x%lx\n",
- parent->name, p_lowpc, p_highpc));
- for (pc = (Instruction*)(p_lowpc + delta);
- pc < (Instruction*)(p_highpc + delta);
- ++pc)
+ if (indirect_child.name == NULL)
{
- switch (pc->a.op_code) {
- case OP_Jxx:
- /*
- * There is no simple and reliable way to determine the
- * target of a jsr (the hint bits help, but there aren't
- * enough bits to get a satisfactory hit rate). Instead,
- * for any indirect jump we simply add an arc from PARENT
- * to INDIRECT_CHILD---that way the user it at least able
- * to see that there are other calls as well.
- */
- if (pc->j.func == Jxx_FUNC_JSR
- || pc->j.func == Jxx_FUNC_JSR_COROUTINE)
+ sym_init (&indirect_child);
+ indirect_child.name = _("<indirect child>");
+ indirect_child.cg.prop.fract = 1.0;
+ indirect_child.cg.cyc.head = &indirect_child;
+ }
+
+ DBG (CALLDEBUG, printf (_("[find_call] %s: 0x%lx to 0x%lx\n"),
+ parent->name, (unsigned long) p_lowpc,
+ (unsigned long) p_highpc));
+ for (pc = (p_lowpc + 3) & ~(bfd_vma) 3; pc < p_highpc; pc += 4)
+ {
+ insn = bfd_get_32 (core_bfd, ((unsigned char *) core_text_space
+ + pc - core_text_sect->vma));
+ switch (insn & (0x3f << 26))
+ {
+ case OP_Jxx << 26:
+ /*
+ * There is no simple and reliable way to determine the
+ * target of a jsr (the hint bits help, but there aren't
+ * enough bits to get a satisfactory hit rate). Instead,
+ * for any indirect jump we simply add an arc from PARENT
+ * to INDIRECT_CHILD---that way the user it at least able
+ * to see that there are other calls as well.
+ */
+ if ((insn & (3 << 14)) == Jxx_FUNC_JSR << 14
+ || (insn & (3 << 14)) == Jxx_FUNC_JSR_COROUTINE << 14)
{
- DBG(CALLDEBUG,
- printf("[find_call] 0x%lx: jsr%s <indirect_child>\n",
- (bfd_vma) pc - delta,
- pc->j.func == Jxx_FUNC_JSR ? "" : "_coroutine"));
- arc_add(parent, &indirect_child, 0);
- } /* if */
- break;
+ DBG (CALLDEBUG,
+ printf (_("[find_call] 0x%lx: jsr%s <indirect_child>\n"),
+ (unsigned long) pc,
+ ((insn & (3 << 14)) == Jxx_FUNC_JSR << 14
+ ? "" : "_coroutine")));
+ arc_add (parent, &indirect_child, (unsigned long) 0);
+ }
+ break;
- case OP_BSR:
- DBG(CALLDEBUG,
- printf("[find_call] 0x%lx: bsr", (bfd_vma) pc - delta));
- /*
- * Regular PC relative addressing. Check that this is the
- * address of a function. The linker sometimes redirects
- * the entry point by 8 bytes to skip loading the global
- * pointer, so we all for either address:
- */
- dest_pc = ((bfd_vma) (pc + 1 + pc->b.disp)) - delta;
- if (dest_pc >= s_lowpc && dest_pc <= s_highpc) {
- child = sym_lookup(&symtab, dest_pc);
- DBG(CALLDEBUG,
- printf(" 0x%lx\t; name=%s, addr=0x%lx",
- dest_pc, child->name, child->addr));
- if (child->addr == dest_pc || child->addr == dest_pc - 8) {
- DBG(CALLDEBUG, printf("\n"));
- /* a hit: */
- arc_add(parent, child, 0);
- continue;
- } /* if */
- } /* if */
- /*
- * Something funny going on.
- */
- DBG(CALLDEBUG, printf("\tbut it's a botch\n"));
- break;
+ case OP_BSR << 26:
+ DBG (CALLDEBUG,
+ printf (_("[find_call] 0x%lx: bsr"), (unsigned long) pc));
+ /*
+ * Regular PC relative addressing. Check that this is the
+ * address of a function. The linker sometimes redirects
+ * the entry point by 8 bytes to skip loading the global
+ * pointer, so we allow for either address:
+ */
+ dest_pc = pc + 4 + (((bfd_signed_vma) (insn & 0x1fffff)
+ ^ 0x100000) - 0x100000);
+ if (hist_check_address (dest_pc))
+ {
+ child = sym_lookup (&symtab, dest_pc);
+ if (child)
+ {
+ DBG (CALLDEBUG,
+ printf (" 0x%lx\t; name=%s, addr=0x%lx",
+ (unsigned long) dest_pc, child->name,
+ (unsigned long) child->addr));
+ if (child->addr == dest_pc || child->addr == dest_pc - 8)
+ {
+ DBG (CALLDEBUG, printf ("\n"));
+ /* a hit: */
+ arc_add (parent, child, (unsigned long) 0);
+ continue;
+ }
+ }
+ }
+ /*
+ * Something funny going on.
+ */
+ DBG (CALLDEBUG, printf ("\tbut it's a botch\n"));
+ break;
- default:
- break;
- } /* switch */
- } /* for */
-} /* find_call */
- /*** end of alpha.c ***/
+ default:
+ break;
+ }
+ }
+}
projects / deliverable / binutils-gdb.git / blobdiff