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1 | /* ld-emul.h - Linker emulation header file |
2 | Copyright 1991, 92, 93, 94, 95, 96, 97, 1998 Free Software Foundation, Inc. | |
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*)); | |
58 | ||
59 | typedef struct ld_emulation_xfer_struct | |
60 | { | |
61 | /* Run before parsing the command line and script file. | |
62 | Set the architecture, maybe other things. */ | |
63 | void (*before_parse) PARAMS ((void)); | |
64 | ||
65 | /* Handle the SYSLIB (low level library) script command. */ | |
66 | void (*syslib) PARAMS ((char *)); | |
67 | ||
68 | /* Handle the HLL (high level library) script command. */ | |
69 | void (*hll) PARAMS ((char *)); | |
70 | ||
71 | /* Run after parsing the command line and script file. */ | |
72 | void (*after_parse) PARAMS ((void)); | |
73 | ||
74 | /* Run after opening all input files, and loading the symbols. */ | |
75 | void (*after_open) PARAMS ((void)); | |
76 | ||
77 | /* Run after allocating output sections. */ | |
78 | void (*after_allocation) PARAMS ( (void)); | |
79 | ||
80 | /* Set the output architecture and machine if possible. */ | |
81 | void (*set_output_arch) PARAMS ((void)); | |
82 | ||
83 | /* Decide which target name to use. */ | |
84 | char * (*choose_target) PARAMS ((void)); | |
85 | ||
86 | /* Run before allocating output sections. */ | |
87 | void (*before_allocation) PARAMS ((void)); | |
88 | ||
89 | /* Return the appropriate linker script. */ | |
90 | char * (*get_script) PARAMS ((int *isfile)); | |
91 | ||
92 | /* The name of this emulation. */ | |
93 | char *emulation_name; | |
94 | ||
95 | /* The output format. */ | |
96 | char *target_name; | |
97 | ||
98 | /* Run after assigning values from the script. */ | |
99 | void (*finish) PARAMS ((void)); | |
100 | ||
101 | /* Create any output sections needed by the target. */ | |
102 | void (*create_output_section_statements) PARAMS ((void)); | |
103 | ||
104 | /* Try to open a dynamic library. ARCH is an architecture name, and | |
105 | is normally the empty string. ENTRY is the lang_input_statement | |
106 | that should be opened. */ | |
107 | boolean (*open_dynamic_archive) | |
108 | PARAMS ((const char *arch, struct search_dirs *, | |
109 | struct lang_input_statement_struct *entry)); | |
110 | ||
111 | /* Place an orphan section. Return true if it was placed, false if | |
112 | the default action should be taken. This field may be NULL, in | |
113 | which case the default action will always be taken. */ | |
114 | boolean (*place_orphan) | |
115 | PARAMS ((struct lang_input_statement_struct *, asection *)); | |
116 | ||
117 | /* Run after assigning parsing with the args, but before | |
118 | reading the script. Used to initialize symbols used in the script. */ | |
119 | void (*set_symbols) PARAMS ((void)); | |
120 | ||
121 | /* Run to parse args which the base linker doesn't | |
122 | understand. Return non zero on sucess. */ | |
123 | int (*parse_args) PARAMS ((int, char **)); | |
124 | ||
125 | /* Run to handle files which are not recognized as object files or | |
126 | archives. Return true if the file was handled. */ | |
127 | boolean (*unrecognized_file) | |
128 | PARAMS ((struct lang_input_statement_struct *)); | |
129 | ||
130 | /* Run to list the command line options which parse_args handles. */ | |
131 | void (* list_options) PARAMS ((FILE *)); | |
132 | ||
133 | /* Run to specially handle files which *are* recognized as object | |
134 | files or archives. Return true if the file was handled. */ | |
135 | boolean (*recognized_file) | |
136 | PARAMS ((struct lang_input_statement_struct *)); | |
137 | ||
138 | } ld_emulation_xfer_type; | |
139 | ||
140 | typedef enum | |
141 | { | |
142 | intel_ic960_ld_mode_enum, | |
143 | default_mode_enum , | |
144 | intel_gld960_ld_mode_enum | |
145 | } lang_emulation_mode_enum_type; | |
146 | ||
147 | extern ld_emulation_xfer_type *ld_emulations[]; | |
148 | ||
149 | #endif |