| /* |
| * 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 "search_list.h" |
| #include "source.h" |
| #include "symtab.h" |
| #include "cg_arcs.h" |
| #include "corefile.h" |
| #include "hist.h" |
| |
| /* |
| * opcode of the `callf' instruction |
| */ |
| #define CALL (0xc0000000) |
| |
| void sparc_find_call PARAMS ((Sym *, bfd_vma, bfd_vma)); |
| |
| void |
| sparc_find_call (parent, p_lowpc, p_highpc) |
| Sym *parent; |
| bfd_vma p_lowpc; |
| bfd_vma p_highpc; |
| { |
| bfd_vma pc, dest_pc; |
| unsigned int insn; |
| Sym *child; |
| |
| 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 ("[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)); |
| if (insn & CALL) |
| { |
| DBG (CALLDEBUG, |
| printf ("[find_call] 0x%lx: callf", (unsigned long) pc)); |
| /* |
| * Regular pc relative addressing check that this is the |
| * address of a function. |
| */ |
| dest_pc = pc + (((bfd_signed_vma) (insn & 0x3fffffff) |
| ^ 0x20000000) - 0x20000000); |
| if (dest_pc >= s_lowpc && dest_pc <= s_highpc) |
| { |
| child = sym_lookup (&symtab, dest_pc); |
| DBG (CALLDEBUG, |
| printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n", |
| (unsigned long) dest_pc, child->name, |
| (unsigned long) child->addr)); |
| if (child->addr == dest_pc) |
| { |
| /* a hit: */ |
| arc_add (parent, child, (unsigned long) 0); |
| continue; |
| } |
| } |
| /* |
| * Something funny going on. |
| */ |
| DBG (CALLDEBUG, printf ("\tbut it's a botch\n")); |
| } |
| } |
| } |