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66dae892 RK |
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 | 4 | |
7ec022b2 | 5 | This file is part of GCC. |
8763cbe8 | 6 | |
7ec022b2 | 7 | GCC is free software; you can redistribute it and/or modify |
8763cbe8 RS |
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 | ||
7ec022b2 | 12 | GCC is distributed in the hope that it will be useful, |
8763cbe8 RS |
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 | |
7ec022b2 | 18 | along with GCC; 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 | |
9b8466f4 NB |
22 | /* Target OS builtins. */ |
23 | #define TARGET_OS_CPP_BUILTINS() \ | |
24 | do \ | |
25 | { \ | |
26 | builtin_define_std ("unix"); \ | |
27 | builtin_define_std ("UnicomPBD"); \ | |
28 | builtin_assert ("system=unix"); \ | |
29 | } \ | |
30 | while (0) | |
8763cbe8 RS |
31 | |
32 | /* We want DBX format for use with gdb under COFF. */ | |
33 | ||
23532de9 | 34 | #define DBX_DEBUGGING_INFO 1 |
8763cbe8 RS |
35 | |
36 | /* Generate calls to memcpy, memcmp and memset. */ | |
37 | ||
38 | #define TARGET_MEM_FUNCTIONS | |
39 | ||
40 | /* we use /lib/libp/lib* when profiling */ | |
41 | ||
42 | #undef LIB_SPEC | |
0c8d4ff0 | 43 | #define LIB_SPEC "%{p:-L/usr/lib/libp} %{pg:-L/usr/lib/libp} -lc" |
8763cbe8 | 44 | |
8763cbe8 | 45 | |
0c8d4ff0 RS |
46 | /* Use crt1.o as a startup file and crtn.o as a closing file. */ |
47 | /* | |
48 | * The loader directive file gcc.ifile defines how to merge the constructor | |
49 | * sections into the data section. Also, since gas only puts out those | |
50 | * sections in response to N_SETT stabs, and does not (yet) have a | |
51 | * ".sections" directive, gcc.ifile also defines the list symbols | |
52 | * __DTOR_LIST__ and __CTOR_LIST__. | |
53 | * | |
54 | * Finally, we must explicitly specify the file from libgcc.a that defines | |
55 | * exit(), otherwise if the user specifies (for example) "-lc_s" on the | |
56 | * command line, the wrong exit() will be used and global destructors will | |
57 | * not get called . | |
58 | */ | |
59 | ||
8763cbe8 | 60 | #define STARTFILE_SPEC \ |
0c8d4ff0 RS |
61 | "%{!r: gcc.ifile%s} %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \ |
62 | %{!r:_exit.o%s}" | |
63 | ||
64 | #define ENDFILE_SPEC "crtn.o%s" | |
8763cbe8 | 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 | |
8763cbe8 | 123 | #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ |
e59f7d3d | 124 | sprintf (LABEL, "*.%s%ld", PREFIX, (long)(NUM)) |
8763cbe8 | 125 | |
8763cbe8 RS |
126 | /* This is how to output an element of a case-vector that is relative. */ |
127 | ||
128 | #undef ASM_OUTPUT_ADDR_DIFF_ELT | |
33f7f353 | 129 | #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
8763cbe8 RS |
130 | fprintf (FILE, "\t.word .L%d-.L%d\n", VALUE, REL) |
131 | ||
132 | /* This is how to output an element of a case-vector that is absolute. | |
133 | (The 68000 does not use such vectors, | |
134 | but we must define this macro anyway.) */ | |
135 | ||
136 | #undef ASM_OUTPUT_ADDR_VEC_ELT | |
137 | #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ | |
138 | fprintf (FILE, "\t.word .L%d\n", VALUE) | |
139 | ||
2be15d0f | 140 | /* This is needed for SunOS 4.0, and should not hurt for 3.2 |
8763cbe8 | 141 | versions either. */ |
e59f7d3d | 142 | #undef ASM_OUTPUT_SOURCE_LINE |
a8d0467e EB |
143 | #define ASM_OUTPUT_SOURCE_LINE(file, line, counter) \ |
144 | fprintf (file, ".stabn 68,0,%d,.LM%d\n.LM%d:\n", \ | |
145 | line, counter, counter) | |
8763cbe8 | 146 | |
471b6f1b | 147 | #define ASM_INT_OP "\t.long " |