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/* Machine-dependent definitions for profiling support.  SH version.
 *
 * Copyright (C) 2003 Stefan Allius <allius@atecom.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this program; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 */
 
#define mcount_internal __mcount_internal
 
#define _MCOUNT_DECL(frompc, selfpc) \
static void __attribute__((unused)) mcount_internal (u_long frompc, u_long selfpc)
 
/*
 * This mcount implementation expect the 'frompc' return address on
 * the stack and the 'selfpc' return address in register pr.
 *
 * Your compiler should include some stuff like this at each function
 * entry:
 *
 *      mov.l   1f,r1
 *      sts.l   pr,@-r15
 *      mova    2f,r0
 *      jmp     @r1
 *       lds    r0,pr
 *      .align  2
 * 1:   .long   mcount
 * 2:   lds.l   @r15+,pr
 *
 * or for PIC:
 *
 *      mov.l   3f,r1
 *      mova    3f,r0
 *      add     r1,r0
 *      mov.l   1f,r1
 *      mov.l   @(r0,r1),r1
 *      sts.l   pr,@-r15
 *      mova    2f,r0
 *      jmp     @r1
 *       lds    r0,pr
 *      .align  2
 * 1:   .long   mcount@GOT
 * 3:   .long   _GLOBAL_OFFSET_TABLE_
 * 2:   lds.l   @r15+,pr
 *
 *
 * This ABI will be supported by GCC version 3.3 or newer!
 */
#define MCOUNT asm(\
        ".align 4\n\t" \
        ".globl _mcount\n\t" \
        ".type _mcount,@function\n" \
        "_mcount:\n\t" \
        "mov.l r4,  @-r15\n\t" \
        "mov.l r5,  @-r15\n\t" \
        "mov.l r6,  @-r15\n\t" \
        "mov.l r7,  @-r15\n\t" \
        "sts.l pr,  @-r15\n\t" \
        "sts   pr, r5\n\t" \
        "bsr __mcount_internal\n\t" \
        " mov.l @(5*4,r15), r4\n\t" \
        "lds.l @r15+, pr\n\t" \
        "mov.l @r15+, r7\n\t" \
        "mov.l @r15+, r6\n\t" \
        "mov.l @r15+, r5\n\t" \
        "rts\n\t" \
        " mov.l @r15+, r4\n\t" \
        ".size _mcount,.-_mcount;\n\t" \
        ".weak mcount;\n\t" \
        " mcount = _mcount;");
 

Line No.	Rev	Author	Line
1	1325	phoenix	`/* Machine-dependent definitions for profiling support. SH version.`
2			`*`
3			`* Copyright (C) 2003 Stefan Allius <allius@atecom.com>`
4			`*`
5			`* This program is free software; you can redistribute it and/or`
6			`* modify it under the terms of the GNU Library General Public`
7			`* License as published by the Free Software Foundation; either`
8			`* version 2 of the License, or (at your option) any later version.`
9			`*`
10			`* This program is distributed in the hope that it will be useful,`
11			`* but WITHOUT ANY WARRANTY; without even the implied warranty of`
12			`* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU`
13			`* Library General Public License for more details.`
14			`*`
15			`* You should have received a copy of the GNU Library General Public`
16			`* License along with this program; if not, write to the Free`
17			`* Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA`
18			`* 02111-1307 USA`
19			`*/`
20
21			`#define mcount_internal __mcount_internal`
22
23			`#define _MCOUNT_DECL(frompc, selfpc) \`
24			`static void __attribute__((unused)) mcount_internal (u_long frompc, u_long selfpc)`
25
26			`/*`
27			`* This mcount implementation expect the 'frompc' return address on`
28			`* the stack and the 'selfpc' return address in register pr.`
29			`*`
30			`* Your compiler should include some stuff like this at each function`
31			`* entry:`
32			`*`
33			`* mov.l 1f,r1`
34			`* sts.l pr,@-r15`
35			`* mova 2f,r0`
36			`* jmp @r1`
37			`* lds r0,pr`
38			`* .align 2`
39			`* 1: .long mcount`
40			`* 2: lds.l @r15+,pr`
41			`*`
42			`* or for PIC:`
43			`*`
44			`* mov.l 3f,r1`
45			`* mova 3f,r0`
46			`* add r1,r0`
47			`* mov.l 1f,r1`
48			`* mov.l @(r0,r1),r1`
49			`* sts.l pr,@-r15`
50			`* mova 2f,r0`
51			`* jmp @r1`
52			`* lds r0,pr`
53			`* .align 2`
54			`* 1: .long mcount@GOT`
55			`* 3: .long _GLOBAL_OFFSET_TABLE_`
56			`* 2: lds.l @r15+,pr`
57			`*`
58			`*`
59			`* This ABI will be supported by GCC version 3.3 or newer!`
60			`*/`
61			`#define MCOUNT asm(\`
62			`".align 4\n\t" \`
63			`".globl _mcount\n\t" \`
64			`".type _mcount,@function\n" \`
65			`"_mcount:\n\t" \`
66			`"mov.l r4, @-r15\n\t" \`
67			`"mov.l r5, @-r15\n\t" \`
68			`"mov.l r6, @-r15\n\t" \`
69			`"mov.l r7, @-r15\n\t" \`
70			`"sts.l pr, @-r15\n\t" \`
71			`"sts pr, r5\n\t" \`
72			`"bsr __mcount_internal\n\t" \`
73			`" mov.l @(5*4,r15), r4\n\t" \`
74			`"lds.l @r15+, pr\n\t" \`
75			`"mov.l @r15+, r7\n\t" \`
76			`"mov.l @r15+, r6\n\t" \`
77			`"mov.l @r15+, r5\n\t" \`
78			`"rts\n\t" \`
79			`" mov.l @r15+, r4\n\t" \`
80			`".size _mcount,.-_mcount;\n\t" \`
81			`".weak mcount;\n\t" \`
82			`" mcount = _mcount;");`
83

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[/] [or1k_old/] [trunk/] [linux/] [uClibc/] [libc/] [sysdeps/] [linux/] [sh/] [bits/] [machine-gmon.h] - Blame information for rev 1782