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1 | /* Definitions of target machine for GNU compiler, Citicorp/TTI Unicom PBD |
2 | version (using GAS and COFF (encapsulated is unacceptable) ) | |
471b6f1b | 3 | Copyright (C) 1990, 1996, 2000 Free Software Foundation, Inc. |
8763cbe8 RS |
4 | |
5 | This file is part of GNU CC. | |
6 | ||
7 | GNU CC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GNU CC is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GNU CC; see the file COPYING. If not, write to | |
c15c9075 RK |
19 | the Free Software Foundation, 59 Temple Place - Suite 330, |
20 | Boston, MA 02111-1307, USA. */ | |
8763cbe8 | 21 | |
8763cbe8 RS |
22 | |
23 | /* Names to predefine in the preprocessor for this target machine. */ | |
24 | ||
25 | #undef CPP_PREDEFINES | |
2b57e919 | 26 | #define CPP_PREDEFINES "-Dsparc -DUnicomPBD -Dunix -D__GCC_NEW_VARARGS__ -Asystem=unix -Acpu=sparc -Amachine=sparc" |
8763cbe8 RS |
27 | |
28 | /* We want DBX format for use with gdb under COFF. */ | |
29 | ||
30 | #define DBX_DEBUGGING_INFO | |
8763cbe8 RS |
31 | |
32 | /* Generate calls to memcpy, memcmp and memset. */ | |
33 | ||
34 | #define TARGET_MEM_FUNCTIONS | |
35 | ||
36 | /* we use /lib/libp/lib* when profiling */ | |
37 | ||
38 | #undef LIB_SPEC | |
0c8d4ff0 | 39 | #define LIB_SPEC "%{p:-L/usr/lib/libp} %{pg:-L/usr/lib/libp} -lc" |
8763cbe8 | 40 | |
8763cbe8 | 41 | |
0c8d4ff0 RS |
42 | /* Use crt1.o as a startup file and crtn.o as a closing file. */ |
43 | /* | |
44 | * The loader directive file gcc.ifile defines how to merge the constructor | |
45 | * sections into the data section. Also, since gas only puts out those | |
46 | * sections in response to N_SETT stabs, and does not (yet) have a | |
47 | * ".sections" directive, gcc.ifile also defines the list symbols | |
48 | * __DTOR_LIST__ and __CTOR_LIST__. | |
49 | * | |
50 | * Finally, we must explicitly specify the file from libgcc.a that defines | |
51 | * exit(), otherwise if the user specifies (for example) "-lc_s" on the | |
52 | * command line, the wrong exit() will be used and global destructors will | |
53 | * not get called . | |
54 | */ | |
55 | ||
8763cbe8 | 56 | #define STARTFILE_SPEC \ |
0c8d4ff0 RS |
57 | "%{!r: gcc.ifile%s} %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \ |
58 | %{!r:_exit.o%s}" | |
59 | ||
60 | #define ENDFILE_SPEC "crtn.o%s" | |
8763cbe8 RS |
61 | |
62 | /* cpp has to support a #sccs directive for the /usr/include files */ | |
63 | ||
64 | #define SCCS_DIRECTIVE | |
65 | ||
2296cba3 | 66 | /* LINK_SPEC is needed only for SunOS 4. */ |
0c8d4ff0 RS |
67 | |
68 | #undef LINK_SPEC | |
69 | ||
70 | /* Although the gas we use can create .ctor and .dtor sections from N_SETT | |
71 | stabs, it does not support section directives, so we need to have the loader | |
72 | define the lists. | |
73 | */ | |
74 | #define CTOR_LISTS_DEFINED_EXTERNALLY | |
75 | ||
76 | /* similar to default, but allows for the table defined by ld with gcc.ifile. | |
77 | nptrs is always 0. So we need to instead check that __DTOR_LIST__[1] != 0. | |
78 | The old check is left in so that the same macro can be used if and when | |
80ffc95e | 79 | a future version of gas does support section directives. */ |
0c8d4ff0 RS |
80 | |
81 | #define DO_GLOBAL_DTORS_BODY {int nptrs = *(int *)__DTOR_LIST__; int i; \ | |
82 | if (nptrs == -1 || (__DTOR_LIST__[0] == 0 && __DTOR_LIST__[1] != 0)) \ | |
83 | for (nptrs = 0; __DTOR_LIST__[nptrs + 1] != 0; nptrs++); \ | |
84 | for (i = nptrs; i >= 1; i--) \ | |
85 | __DTOR_LIST__[i] (); } | |
86 | ||
87 | /* | |
88 | * Here is an example gcc.ifile. I've tested it on PBD sparc | |
89 | * systems. The NEXT(0x200000) works on just about all 386 and m68k systems, | |
90 | * but can be reduced to any power of 2 that is >= NBPS (0x40000 on a pbd). | |
91 | ||
92 | SECTIONS { | |
93 | .text BIND(0x41000200) BLOCK (0x200) : | |
94 | { *(.init) *(.text) vfork = fork; *(.fini) } | |
95 | ||
96 | GROUP BIND( NEXT(0x200000) + ADDR(.text) + SIZEOF(.text)): | |
97 | { .data : { __CTOR_LIST__ = . ; . += 4; *(.ctor) . += 4 ; | |
98 | __DTOR_LIST__ = . ; . += 4; *(.dtor) . += 4 ; } | |
99 | .bss : { } | |
100 | } | |
101 | } | |
102 | */ | |
103 | ||
80ffc95e | 104 | /* The prefix to add to user-visible assembler symbols. */ |
66dae892 RK |
105 | |
106 | #undef USER_LABEL_PREFIX | |
107 | #define USER_LABEL_PREFIX "" | |
8763cbe8 RS |
108 | |
109 | /* fixes: */ | |
110 | /* | |
111 | * Internal labels are prefixed with a period. | |
112 | */ | |
113 | ||
59f96879 RH |
114 | #undef LOCAL_LABEL_PREFIX |
115 | #define LOCAL_LABEL_PREFIX "." | |
116 | ||
8763cbe8 RS |
117 | /* This is how to store into the string LABEL |
118 | the symbol_ref name of an internal numbered label where | |
119 | PREFIX is the class of label and NUM is the number within the class. | |
120 | This is suitable for output with `assemble_name'. */ | |
121 | ||
122 | #undef ASM_GENERATE_INTERNAL_LABEL | |
123 | ||
124 | #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ | |
e59f7d3d | 125 | sprintf (LABEL, "*.%s%ld", PREFIX, (long)(NUM)) |
8763cbe8 RS |
126 | |
127 | ||
128 | /* This is how to output an internal numbered label where | |
129 | PREFIX is the class of label and NUM is the number within the class. */ | |
130 | ||
131 | #undef ASM_OUTPUT_INTERNAL_LABEL | |
132 | #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ | |
133 | fprintf (FILE, ".%s%d:\n", PREFIX, NUM) | |
134 | ||
135 | /* This is how to output an element of a case-vector that is relative. */ | |
136 | ||
137 | #undef ASM_OUTPUT_ADDR_DIFF_ELT | |
33f7f353 | 138 | #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
8763cbe8 RS |
139 | fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL) |
140 | ||
141 | /* This is how to output an element of a case-vector that is absolute. | |
142 | (The 68000 does not use such vectors, | |
143 | but we must define this macro anyway.) */ | |
144 | ||
145 | #undef ASM_OUTPUT_ADDR_VEC_ELT | |
146 | #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
147 | fprintf (FILE, "\t.word .L%d\n", VALUE) | |
148 | ||
2be15d0f | 149 | /* This is needed for SunOS 4.0, and should not hurt for 3.2 |
8763cbe8 | 150 | versions either. */ |
e59f7d3d | 151 | #undef ASM_OUTPUT_SOURCE_LINE |
8763cbe8 RS |
152 | #define ASM_OUTPUT_SOURCE_LINE(file, line) \ |
153 | { static int sym_lineno = 1; \ | |
154 | fprintf (file, ".stabn 68,0,%d,.LM%d\n.LM%d:\n", \ | |
155 | line, sym_lineno, sym_lineno); \ | |
156 | sym_lineno += 1; } | |
157 | ||
471b6f1b | 158 | #define ASM_INT_OP "\t.long " |