sysdeps/mips/machine-gmon.h

   1 /* Machine-specific calling sequence for `mcount' profiling function.  MIPS
   2    Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004
   3         Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <sgidefs.h>
  22
  23 #define _MCOUNT_DECL(frompc,selfpc) \
  24 static void __attribute_used__ __mcount (u_long frompc, u_long selfpc)
  25
  26 /* Call __mcount with the return PC for our caller,
  27    and the return PC our caller will return to.  */
  28
  29 #if _MIPS_SIM == _MIPS_SIM_ABI32
  30
  31 #ifdef __PIC__
  32 # define CPLOAD ".cpload $25;"
  33 # define CPRESTORE ".cprestore 44\n\t"
  34 #else
  35 # define CPLOAD
  36 # define CPRESTORE
  37 #endif
  38
  39 #define MCOUNT asm(\
  40         ".globl _mcount;\n\t" \
  41         ".align 2;\n\t" \
  42         ".type _mcount,@function;\n\t" \
  43         ".ent _mcount\n\t" \
  44         "_mcount:\n\t" \
  45         ".frame $sp,44,$31\n\t" \
  46         ".set noreorder;\n\t" \
  47         ".set noat;\n\t" \
  48         CPLOAD \
  49         "subu $29,$29,48;\n\t" \
  50         CPRESTORE \
  51         "sw $4,24($29);\n\t" \
  52         "sw $5,28($29);\n\t" \
  53         "sw $6,32($29);\n\t" \
  54         "sw $7,36($29);\n\t" \
  55         "sw $2,40($29);\n\t" \
  56         "sw $1,16($29);\n\t" \
  57         "sw $31,20($29);\n\t" \
  58         "move $5,$31;\n\t" \
  59         "move $4,$1;\n\t" \
  60         "jal __mcount;\n\t" \
  61         "nop;\n\t" \
  62         "lw $4,24($29);\n\t" \
  63         "lw $5,28($29);\n\t" \
  64         "lw $6,32($29);\n\t" \
  65         "lw $7,36($29);\n\t" \
  66         "lw $2,40($29);\n\t" \
  67         "lw $31,20($29);\n\t" \
  68         "lw $1,16($29);\n\t" \
  69         "addu $29,$29,56;\n\t" \
  70         "j $31;\n\t" \
  71         "move $31,$1;\n\t" \
  72         ".set reorder;\n\t" \
  73         ".set at\n\t" \
  74         ".end _mcount");
  75
  76 #else
  77
  78 #ifdef __PIC__
  79 # define CPSETUP ".cpsetup $25, 88, _mcount;"
  80 # define CPRETURN ".cpreturn;"
  81 #else
  82 # define CPSETUP
  83 # define CPRETURN
  84 #endif
  85
  86 #if _MIPS_SIM == _MIPS_SIM_NABI32
  87 # define PTR_ADDU_STRING "add" /* no u */
  88 # define PTR_SUBU_STRING "sub" /* no u */
  89 #elif _MIPS_SIM == _MIPS_SIM_ABI64
  90 # define PTR_ADDU_STRING "daddu"
  91 # define PTR_SUBU_STRING "dsubu"
  92 #else
  93 # error "Unknown ABI"
  94 #endif
  95
  96 #define MCOUNT asm(\
  97         ".globl _mcount;\n\t" \
  98         ".align 3;\n\t" \
  99         ".type _mcount,@function;\n\t" \
 100         ".ent _mcount\n\t" \
 101         "_mcount:\n\t" \
 102         ".frame $sp,88,$31\n\t" \
 103         ".set noreorder;\n\t" \
 104         ".set noat;\n\t" \
 105         PTR_SUBU_STRING " $29,$29,96;\n\t" \
 106         CPSETUP \
 107         "sd $4,24($29);\n\t" \
 108         "sd $5,32($29);\n\t" \
 109         "sd $6,40($29);\n\t" \
 110         "sd $7,48($29);\n\t" \
 111         "sd $8,56($29);\n\t" \
 112         "sd $9,64($29);\n\t" \
 113         "sd $10,72($29);\n\t" \
 114         "sd $11,80($29);\n\t" \
 115         "sd $2,16($29);\n\t" \
 116         "sd $1,0($29);\n\t" \
 117         "sd $31,8($29);\n\t" \
 118         "move $5,$31;\n\t" \
 119         "move $4,$1;\n\t" \
 120         "jal __mcount;\n\t" \
 121         "nop;\n\t" \
 122         "ld $4,24($29);\n\t" \
 123         "ld $5,32($29);\n\t" \
 124         "ld $6,40($29);\n\t" \
 125         "ld $7,48($29);\n\t" \
 126         "ld $8,56($29);\n\t" \
 127         "ld $9,64($29);\n\t" \
 128         "ld $10,72($29);\n\t" \
 129         "ld $11,80($29);\n\t" \
 130         "ld $2,16($29);\n\t" \
 131         "ld $31,8($29);\n\t" \
 132         "ld $1,0($29);\n\t" \
 133         CPRETURN \
 134         PTR_ADDU_STRING " $29,$29,96;\n\t" \
 135         "j $31;\n\t" \
 136         "move $31,$1;\n\t" \
 137         ".set reorder;\n\t" \
 138         ".set at\n\t" \
 139         ".end _mcount");
 140
 141 #endif