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Annotation of GNUtools/cc/config/i386/sol2.h, revision 1.1.1.1

1.1       root        1: /* Target definitions for GNU compiler for Intel 80386 running Solaris 2
                      2:    Copyright (C) 1993 Free Software Foundation, Inc.
                      3: 
                      4:    Written by Fred Fish ([email protected]).
                      5: 
                      6: This file is part of GNU CC.
                      7: 
                      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)
                     11: any later version.
                     12: 
                     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.
                     17: 
                     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.  */
                     21: 
                     22: #include "i386/sysv4.h"
                     23: 
                     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. */
                     32: 
                     33: #define FORCE_INIT_SECTION_ALIGN do { asm (ALIGN_ASM_OP ## " 16"); } while (0)
                     34: 
                     35: #undef CPP_SPEC
                     36: #define CPP_SPEC "\
                     37:    %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude}"
                     38: 
                     39: #undef LIB_SPEC
                     40: #define LIB_SPEC \
                     41:   "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \
                     42:    %{!shared:%{!symbolic:-lc}} \
                     43:    crtend.o%s \
                     44:    %{!shared:%{!symbolic:%{pg:crtn.o%s}%{!pg:crtn.o%s}}}"
                     45: 
                     46: /* This should be the same as in svr4.h, except with -R added.  */
                     47: #undef LINK_SPEC
                     48: #define LINK_SPEC \
                     49:   "%{h*} %{V} %{v:%{!V:-V}} \
                     50:    %{b} %{Wl,*:%*} \
                     51:    %{static:-dn -Bstatic} \
                     52:    %{shared:-G -dy} \
                     53:    %{symbolic:-Bsymbolic -G -dy} \
                     54:    %{G:-G} \
                     55:    %{YP,*} \
                     56:    %{R*} \
                     57:    %{compat-bsd: \
                     58:      %{!YP,*:%{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
                     59:        %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
                     60:      -R /usr/ucblib} \
                     61:    %{!compat-bsd: \
                     62:      %{!YP,*:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
                     63:        %{!p:-Y P,/usr/ccs/lib:/usr/lib}}} \
                     64:    %{Qy:} %{!Qn:-Qy}"
                     65: 
                     66: /* This defines which switch letters take arguments.
                     67:    It is as in svr4.h but with -R added.  */
                     68: 
                     69: #undef SWITCH_TAKES_ARG
                     70: #define SWITCH_TAKES_ARG(CHAR) \
                     71:   (   (CHAR) == 'D' \
                     72:    || (CHAR) == 'U' \
                     73:    || (CHAR) == 'o' \
                     74:    || (CHAR) == 'e' \
                     75:    || (CHAR) == 'u' \
                     76:    || (CHAR) == 'I' \
                     77:    || (CHAR) == 'm' \
                     78:    || (CHAR) == 'L' \
                     79:    || (CHAR) == 'R' \
                     80:    || (CHAR) == 'A' \
                     81:    || (CHAR) == 'h' \
                     82:    || (CHAR) == 'z')
                     83: 

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