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gcc.gnu.org Git - gcc.git/blob - gcc/config/i386/sol2.h
1 /* Target definitions for GNU compiler for Intel 80386 running Solaris 2
2 Copyright (C) 1993 Free Software Foundation, Inc.
4 Written by Fred Fish (fnf@cygnus.com).
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
22 #include "i386/sysv4.h"
24 /* The Solaris 2.0 x86 linker botches alignment of code sections.
25 It tries to align to a 16 byte boundary by padding with 0x00000090
26 ints, rather than 0x90 bytes (nop). This generates trash in the
27 ".init" section since the contribution from crtbegin.o is only 7
28 bytes. The linker pads it to 16 bytes with a single 0x90 byte, and
29 two 0x00000090 ints, which generates a segmentation violation when
30 executed. This macro forces the assembler to do the padding, since
31 it knows what it is doing. */
33 #define FORCE_INIT_SECTION_ALIGN do { asm (ALIGN_ASM_OP ## " 16"); } while (0)
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