1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283 |
- /* 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;");
|