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252b5132 | 1 | /* ld-emul.h - Linker emulation header file |
344a211f | 2 | Copyright 1991, 92, 93, 94, 95, 96, 97, 1998, 2000 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This file is part of GLD, the Gnu Linker. | |
5 | ||
6 | GLD is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GLD is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. */ | |
15 | ||
16 | #ifndef LDEMUL_H | |
17 | #define LDEMUL_H | |
18 | ||
19 | #if ANSI_PROTOTYPES | |
20 | struct lang_input_statement_struct; | |
21 | struct search_dirs; | |
22 | #endif | |
23 | ||
24 | extern void ldemul_hll PARAMS ((char *)); | |
25 | extern void ldemul_syslib PARAMS ((char *)); | |
26 | extern void ldemul_after_parse PARAMS ((void)); | |
27 | extern void ldemul_before_parse PARAMS ((void)); | |
28 | extern void ldemul_after_open PARAMS ((void)); | |
29 | extern void ldemul_after_allocation PARAMS ((void)); | |
30 | extern void ldemul_before_allocation PARAMS ((void)); | |
31 | extern void ldemul_set_output_arch PARAMS ((void)); | |
32 | extern char *ldemul_choose_target PARAMS ((void)); | |
33 | extern void ldemul_choose_mode PARAMS ((char *)); | |
34 | extern void ldemul_list_emulations PARAMS ((FILE *)); | |
35 | extern void ldemul_list_emulation_options PARAMS ((FILE *)); | |
36 | extern char *ldemul_get_script PARAMS ((int *isfile)); | |
37 | extern void ldemul_finish PARAMS ((void)); | |
38 | extern void ldemul_set_symbols PARAMS ((void)); | |
39 | extern void ldemul_create_output_section_statements PARAMS ((void)); | |
40 | extern boolean ldemul_place_orphan | |
41 | PARAMS ((struct lang_input_statement_struct *, asection *)); | |
42 | extern int ldemul_parse_args PARAMS ((int, char **)); | |
43 | extern boolean ldemul_unrecognized_file | |
44 | PARAMS ((struct lang_input_statement_struct *)); | |
45 | extern boolean ldemul_recognized_file | |
46 | PARAMS ((struct lang_input_statement_struct *)); | |
47 | extern boolean ldemul_open_dynamic_archive | |
48 | PARAMS ((const char *, struct search_dirs *, | |
49 | struct lang_input_statement_struct *)); | |
50 | extern char *ldemul_default_target PARAMS ((void)); | |
51 | extern void after_parse_default PARAMS ((void)); | |
52 | extern void after_open_default PARAMS ((void)); | |
53 | extern void after_allocation_default PARAMS ((void)); | |
54 | extern void before_allocation_default PARAMS ((void)); | |
55 | extern void set_output_arch_default PARAMS ((void)); | |
56 | extern void syslib_default PARAMS ((char*)); | |
57 | extern void hll_default PARAMS ((char*)); | |
344a211f NC |
58 | extern int ldemul_find_potential_libraries |
59 | PARAMS ((char *, struct lang_input_statement_struct *)); | |
252b5132 RH |
60 | |
61 | typedef struct ld_emulation_xfer_struct | |
62 | { | |
63 | /* Run before parsing the command line and script file. | |
64 | Set the architecture, maybe other things. */ | |
65 | void (*before_parse) PARAMS ((void)); | |
66 | ||
67 | /* Handle the SYSLIB (low level library) script command. */ | |
68 | void (*syslib) PARAMS ((char *)); | |
69 | ||
70 | /* Handle the HLL (high level library) script command. */ | |
71 | void (*hll) PARAMS ((char *)); | |
72 | ||
73 | /* Run after parsing the command line and script file. */ | |
74 | void (*after_parse) PARAMS ((void)); | |
75 | ||
76 | /* Run after opening all input files, and loading the symbols. */ | |
77 | void (*after_open) PARAMS ((void)); | |
78 | ||
79 | /* Run after allocating output sections. */ | |
80 | void (*after_allocation) PARAMS ( (void)); | |
81 | ||
82 | /* Set the output architecture and machine if possible. */ | |
83 | void (*set_output_arch) PARAMS ((void)); | |
84 | ||
85 | /* Decide which target name to use. */ | |
86 | char * (*choose_target) PARAMS ((void)); | |
87 | ||
88 | /* Run before allocating output sections. */ | |
89 | void (*before_allocation) PARAMS ((void)); | |
90 | ||
91 | /* Return the appropriate linker script. */ | |
92 | char * (*get_script) PARAMS ((int *isfile)); | |
93 | ||
94 | /* The name of this emulation. */ | |
95 | char *emulation_name; | |
96 | ||
97 | /* The output format. */ | |
98 | char *target_name; | |
99 | ||
100 | /* Run after assigning values from the script. */ | |
101 | void (*finish) PARAMS ((void)); | |
102 | ||
103 | /* Create any output sections needed by the target. */ | |
104 | void (*create_output_section_statements) PARAMS ((void)); | |
105 | ||
106 | /* Try to open a dynamic library. ARCH is an architecture name, and | |
107 | is normally the empty string. ENTRY is the lang_input_statement | |
108 | that should be opened. */ | |
109 | boolean (*open_dynamic_archive) | |
110 | PARAMS ((const char *arch, struct search_dirs *, | |
111 | struct lang_input_statement_struct *entry)); | |
112 | ||
113 | /* Place an orphan section. Return true if it was placed, false if | |
114 | the default action should be taken. This field may be NULL, in | |
115 | which case the default action will always be taken. */ | |
116 | boolean (*place_orphan) | |
117 | PARAMS ((struct lang_input_statement_struct *, asection *)); | |
118 | ||
119 | /* Run after assigning parsing with the args, but before | |
120 | reading the script. Used to initialize symbols used in the script. */ | |
121 | void (*set_symbols) PARAMS ((void)); | |
122 | ||
123 | /* Run to parse args which the base linker doesn't | |
124 | understand. Return non zero on sucess. */ | |
125 | int (*parse_args) PARAMS ((int, char **)); | |
126 | ||
127 | /* Run to handle files which are not recognized as object files or | |
128 | archives. Return true if the file was handled. */ | |
129 | boolean (*unrecognized_file) | |
130 | PARAMS ((struct lang_input_statement_struct *)); | |
131 | ||
132 | /* Run to list the command line options which parse_args handles. */ | |
133 | void (* list_options) PARAMS ((FILE *)); | |
134 | ||
135 | /* Run to specially handle files which *are* recognized as object | |
136 | files or archives. Return true if the file was handled. */ | |
137 | boolean (*recognized_file) | |
138 | PARAMS ((struct lang_input_statement_struct *)); | |
139 | ||
344a211f NC |
140 | /* Called when looking for libraries in a directory specified |
141 | via a linker command line option or linker script option. | |
142 | Files that match the pattern "lib*.a" have already been scanned. | |
143 | (For VMS files matching ":lib*.a" have also been scanned). */ | |
144 | int (* find_potential_libraries) | |
145 | PARAMS ((char *, struct lang_input_statement_struct *)); | |
146 | ||
252b5132 RH |
147 | } ld_emulation_xfer_type; |
148 | ||
149 | typedef enum | |
150 | { | |
151 | intel_ic960_ld_mode_enum, | |
152 | default_mode_enum , | |
153 | intel_gld960_ld_mode_enum | |
154 | } lang_emulation_mode_enum_type; | |
155 | ||
156 | extern ld_emulation_xfer_type *ld_emulations[]; | |
157 | ||
158 | #endif |