git://gcc.gnu.org / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| bebbbdbb JB |
1 | /* bc-emit.h - declare entry points for producing object files of bytecodes. */ |
| 2 | ||
| 3 | /* Internal format of symbol table for the object file. */ | |
| 4 | struct bc_sym | |
| 5 | { | |
| 6 | /* Private copy separately malloc'd. */ | |
| 7 | char *name; | |
| 8 | ||
| 9 | /* Symbol has a defined value. */ | |
| 10 | unsigned int defined:1; | |
| 11 | ||
| 12 | /* Symbol has been globalized. */ | |
| 13 | unsigned int global:1; | |
| 14 | ||
| 15 | /* Symbol is common. */ | |
| 16 | unsigned int common:1; | |
| 17 | ||
| 18 | /* Value if defined. */ | |
| 19 | unsigned long int val; | |
| 20 | ||
| 21 | /* Used in internal symbol table structure. */ | |
| 22 | struct bc_sym *next; | |
| 23 | }; | |
| 24 | ||
| 25 | ||
| 26 | /* List of symbols defined in a particular segment. */ | |
| 27 | struct bc_segsym | |
| 28 | { | |
| 29 | struct bc_sym *sym; | |
| 30 | struct bc_segsym *next; | |
| 31 | }; | |
| 32 | ||
| 33 | ||
| 34 | /* List of relocations needed in a particular segment. */ | |
| 35 | struct bc_segreloc | |
| 36 | { | |
| 37 | /* Offset of datum to be relocated. */ | |
| 38 | unsigned int offset; | |
| 39 | ||
| 40 | /* Symbol to be relocated by. */ | |
| 41 | struct bc_sym *sym; | |
| 42 | ||
| 43 | struct bc_segreloc *next; | |
| 44 | }; | |
| 45 | ||
| 46 | ||
| 47 | /* Segment of an object file. */ | |
| 48 | struct bc_seg | |
| 49 | { | |
| 50 | /* Size allocated to contents. */ | |
| 51 | unsigned int alloc; | |
| 52 | ||
| 53 | /* Pointer to base of contents. */ | |
| 54 | char *data; | |
| 55 | ||
| 56 | /* Actual size of contents. */ | |
| 57 | unsigned int size; | |
| 58 | ||
| 59 | /* List of symbols defined in this segment. */ | |
| 60 | struct bc_segsym *syms; | |
| 61 | ||
| 62 | /* List of relocations for this segment. */ | |
| 63 | struct bc_segreloc *relocs; | |
| 64 | }; | |
| 65 | ||
| 66 | ||
| 67 | /* Anonymous bytecode label within a single function. */ | |
| 68 | struct bc_label | |
| 69 | { | |
| 70 | /* Offset of label from start of segment. */ | |
| 71 | unsigned int offset; | |
| 72 | ||
| 73 | /* True when offset is valid. */ | |
| 74 | unsigned int defined:1; | |
| 75 | ||
| 76 | /* Unique bytecode ID, used to determine innermost | |
| 77 | block containment */ | |
| 78 | int uid; | |
| 79 | ||
| 80 | /* Next node in list */ | |
| 81 | struct bc_label *next; | |
| 82 | }; | |
| 83 | ||
| 84 | ||
| 85 | /* Reference to a bc_label; a list of all such references is kept for | |
| 86 | the function, then when it is finished they are backpatched to | |
| 87 | contain the correct values. */ | |
| 88 | ||
| 89 | struct bc_labelref | |
| 90 | { | |
| 91 | /* Label referenced. */ | |
| 92 | struct bc_label *label; | |
| 93 | ||
| 94 | /* Code offset of reference. */ | |
| 95 | unsigned int offset; | |
| 96 | ||
| 97 | /* Next labelref in list */ | |
| 98 | struct bc_labelref *next; | |
| 99 | }; | |
| 100 | ||
| 101 | \f | |
| 102 | ||
| 103 | extern void bc_initialize(); | |
| 104 | extern int bc_begin_function(); | |
| 105 | extern char *bc_emit_trampoline(); | |
| 106 | extern void bc_emit_bytecode(); | |
| 107 | extern void bc_emit_bytecode_const(); | |
| 108 | extern struct bc_label *bc_get_bytecode_label(); | |
| 109 | extern int bc_emit_bytecode_labeldef(); | |
| 110 | extern void bc_emit_bytecode_labelref(); | |
| 111 | extern void bc_emit_code_labelref(); | |
| 112 | extern char *bc_end_function(); | |
| 113 | extern void bc_align_const(); | |
| 114 | extern void bc_emit_const(); | |
| 115 | extern void bc_emit_const_skip(); | |
| 116 | extern int bc_emit_const_labeldef(); | |
| 117 | extern void bc_emit_const_labelref(); | |
| 118 | extern void bc_align_data(); | |
| 119 | extern void bc_emit_data(); | |
| 120 | extern void bc_emit_data_skip(); | |
| 121 | extern int bc_emit_data_labeldef(); | |
| 122 | extern void bc_emit_data_labelref(); | |
| 123 | extern int bc_define_pointer (); | |
| 124 | extern int bc_emit_common(); | |
| 125 | extern void bc_globalize_label(); | |
| 126 | extern void bc_text(); | |
| 127 | extern void bc_data(); | |
| 128 | extern void bc_align(); | |
| 129 | extern void bc_emit(); | |
| 130 | extern void bc_emit_skip(); | |
| 131 | extern int bc_emit_labeldef(); | |
| 132 | extern void bc_emit_labelref(); | |
| 133 | extern void bc_write_file(); |