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1.1 root 1: /* Definitions of target machine for GNU compiler,
2: for IBM RS/6000 POWER running AIX version 3.x with the fixed assembler.
3: Copyright (C) 1995 Free Software Foundation, Inc.
4: Contributed by Jason Merrill ([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, 59 Temple Place - Suite 330,
21: Boston, MA 02111-1307, USA. */
22:
23:
24: #include "rs6000/rs6000.h"
25:
26: /* Tell the assembler to assume that all undefined names are external. */
27:
28: #undef ASM_SPEC
29: #define ASM_SPEC "-u \
30: %{!mcpu*: \
31: %{mpower: %{!mpowerpc*: %{!mpower2: -mpwr}}} \
32: %{mpower2: -mpwrx} \
33: %{mno-power: %{mpowerpc*: -mppc}} \
34: %{mno-power: %{!mpowerpc*: -mcom}} \
35: %{!mno-power: %{mpowerpc*: -m601}} \
36: %{!mno-power: %{!mpowerpc*: %{!mpower2: -mpwr}}}} \
37: %{mcpu=common: -mcom} \
38: %{mcpu=power: -mpwr} \
39: %{mcpu=powerpc: -mppc} \
40: %{mcpu=rios: -mpwr} \
41: %{mcpu=rios1: -mpwr} \
42: %{mcpu=rios2: -mpwrx} \
43: %{mcpu=rsc: -mpwr} \
44: %{mcpu=rsc1: -mpwr} \
45: %{mcpu=403: -mppc} \
46: %{mcpu=601: -m601} \
47: %{mcpu=603: -mppc} \
48: %{mcpu=604: -mppc}"
49:
50: /* Define the options for the binder: Start text at 512, align all segments
51: to 512 bytes, and warn if there is text relocation.
52:
53: The -bhalt:4 option supposedly changes the level at which ld will abort,
54: but it also suppresses warnings about multiply defined symbols and is
55: used by the AIX cc command. So we use it here.
56:
57: -bnodelcsect undoes a poor choice of default relating to multiply-defined
58: csects. See AIX documentation for more information about this.
59:
60: -bM:SRE tells the linker that the output file is Shared REusable. Note
61: that to actually build a shared library you will also need to specify an
62: export list with the -Wl,-bE option.
63:
64: If -mcpu=common, export the architecture dependent multiply/divide routines
65: as per README.RS6000. */
66:
67: #undef LINK_SPEC
68: #define LINK_SPEC "-T512 -H512 %{!r:-btextro} -bhalt:4 -bnodelcsect\
69: %{static:-bnso -bI:/lib/syscalls.exp} \
70: %{mcpu=common: milli.exp%s} \
71: %{!shared:%{g*:-bexport:/usr/lib/libg.exp}} %{shared:-bM:SRE}"
72:
73: /* These are not necessary when we pass -u to the assembler, and undefining
74: them saves a great deal of space in object files. */
75:
76: #undef ASM_OUTPUT_EXTERNAL
77: #undef ASM_OUTPUT_EXTERNAL_LIBCALL
78: #define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
79: { rtx _symref = XEXP (DECL_RTL (DECL), 0); \
80: if ((TREE_CODE (DECL) == VAR_DECL \
81: || TREE_CODE (DECL) == FUNCTION_DECL) \
82: && (NAME)[0] != '*' \
83: && (NAME)[strlen (NAME) - 1] != ']') \
84: { \
85: char *_name = (char *) permalloc (strlen (XSTR (_symref, 0)) + 5); \
86: strcpy (_name, XSTR (_symref, 0)); \
87: strcat (_name, TREE_CODE (DECL) == FUNCTION_DECL ? "[DS]" : "[RW]"); \
88: XSTR (_symref, 0) = _name; \
89: } \
90: }
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