projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 252b5132 RH |
1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 6 | * provided that: (1) source distributions retain this entire copyright | |
| 7 | * notice and comment, and (2) distributions including binaries display | |
| 8 | * the following acknowledgement: ``This product includes software | |
| 9 | * developed by the University of California, Berkeley and its contributors'' | |
| 10 | * in the documentation or other materials provided with the distribution | |
| 11 | * and in all advertising materials mentioning features or use of this | |
| 12 | * software. Neither the name of the University nor the names of its | |
| 13 | * contributors may be used to endorse or promote products derived | |
| 14 | * from this software without specific prior written permission. | |
| 15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 18 | */ | |
| 19 | #include "gprof.h" | |
| 20 | #include "cg_arcs.h" | |
| 21 | #include "corefile.h" | |
| 22 | #include "hist.h" | |
| 23 | #include "symtab.h" | |
| 24 | ||
| 25 | /* | |
| 26 | * opcode of the `callf' instruction | |
| 27 | */ | |
| 28 | #define CALL (0xc0000000) | |
| 29 | ||
| 30 | void | |
| 31 | sparc_find_call (parent, p_lowpc, p_highpc) | |
| 32 | Sym *parent; | |
| 33 | bfd_vma p_lowpc; | |
| 34 | bfd_vma p_highpc; | |
| 35 | { | |
| 36 | bfd_vma dest_pc, delta; | |
| 37 | unsigned int *instr; | |
| 38 | Sym *child; | |
| 39 | ||
| 40 | delta = (bfd_vma) core_text_space - core_text_sect->vma; | |
| 41 | ||
| 42 | if (core_text_space == 0) | |
| 43 | { | |
| 44 | return; | |
| 45 | } | |
| 46 | if (p_lowpc < s_lowpc) | |
| 47 | { | |
| 48 | p_lowpc = s_lowpc; | |
| 49 | } | |
| 50 | if (p_highpc > s_highpc) | |
| 51 | { | |
| 52 | p_highpc = s_highpc; | |
| 53 | } | |
| 54 | DBG (CALLDEBUG, printf ("[find_call] %s: 0x%lx to 0x%lx\n", | |
| 55 | parent->name, p_lowpc, p_highpc)); | |
| 56 | for (instr = (unsigned int *) (((p_lowpc + delta) + 3) &~ 3); | |
| 57 | instr < (unsigned int *) (p_highpc + delta); | |
| 58 | ++instr) | |
| 59 | { | |
| 60 | if ((*instr & CALL)) | |
| 61 | { | |
| 62 | DBG (CALLDEBUG, | |
| 63 | printf ("[find_call] 0x%lx: callf", (bfd_vma) instr - delta)); | |
| 64 | /* | |
| 65 | * Regular pc relative addressing check that this is the | |
| 66 | * address of a function. | |
| 67 | */ | |
| 68 | dest_pc = ((bfd_vma) (instr + (*instr & ~CALL))) - delta; | |
| 69 | if (dest_pc >= s_lowpc && dest_pc <= s_highpc) | |
| 70 | { | |
| 71 | child = sym_lookup (&symtab, dest_pc); | |
| 72 | DBG (CALLDEBUG, | |
| 73 | printf ("\tdest_pc=0x%lx, (name=%s, addr=0x%lx)\n", | |
| 74 | dest_pc, child->name, child->addr)); | |
| 75 | if (child->addr == dest_pc) | |
| 76 | { | |
| 77 | /* a hit: */ | |
| 78 | arc_add (parent, child, (unsigned long) 0); | |
| 79 | continue; | |
| 80 | } | |
| 81 | } | |
| 82 | /* | |
| 83 | * Something funny going on. | |
| 84 | */ | |
| 85 | DBG (CALLDEBUG, printf ("\tbut it's a botch\n")); | |
| 86 | } | |
| 87 | } | |
| 88 | } |