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bae7f79e ILT |
1 | // readsyms.h -- read input file symbols for gold -*- C++ -*- |
2 | ||
3 | #ifndef GOLD_READSYMS_H | |
4 | #define GOLD_READSYMS_H | |
5 | ||
bae7f79e ILT |
6 | #include "workqueue.h" |
7 | #include "object.h" | |
8 | ||
9 | namespace gold | |
10 | { | |
11 | ||
54dc6425 ILT |
12 | class Input_objects; |
13 | class Symbol_table; | |
14 | ||
bae7f79e ILT |
15 | // This Task is responsible for reading the symbols from an input |
16 | // file. This also includes reading the relocations so that we can | |
17 | // check for any that require a PLT and/or a GOT. After the data has | |
18 | // been read, this queues up another task to actually add the symbols | |
19 | // to the symbol table. The tasks are separated because the file | |
20 | // reading can occur in parallel but adding the symbols must be done | |
21 | // in the order of the input files. | |
22 | ||
23 | class Read_symbols : public Task | |
24 | { | |
25 | public: | |
26 | // DIRPATH is the list of directories to search for libraries. | |
27 | // INPUT is the file to read. THIS_BLOCKER is used to prevent the | |
28 | // associated Add_symbols task from running before the previous one | |
29 | // has completed; it will be NULL for the first task. NEXT_BLOCKER | |
30 | // is used to block the next input file from adding symbols. | |
54dc6425 | 31 | Read_symbols(const General_options& options, Input_objects* input_objects, |
12e14209 | 32 | Symbol_table* symtab, Layout* layout, const Dirsearch& dirpath, |
a2fb1b05 | 33 | const Input_argument& input, |
14bfc3f5 | 34 | Task_token* this_blocker, Task_token* next_blocker) |
a2fb1b05 | 35 | : options_(options), input_objects_(input_objects), symtab_(symtab), |
12e14209 ILT |
36 | layout_(layout), dirpath_(dirpath), input_(input), |
37 | this_blocker_(this_blocker), next_blocker_(next_blocker) | |
bae7f79e ILT |
38 | { } |
39 | ||
40 | ~Read_symbols(); | |
41 | ||
42 | // The standard Task methods. | |
43 | ||
44 | Is_runnable_type | |
45 | is_runnable(Workqueue*); | |
46 | ||
47 | Task_locker* | |
48 | locks(Workqueue*); | |
49 | ||
50 | void | |
51 | run(Workqueue*); | |
52 | ||
53 | private: | |
54 | const General_options& options_; | |
54dc6425 | 55 | Input_objects* input_objects_; |
14bfc3f5 | 56 | Symbol_table* symtab_; |
12e14209 | 57 | Layout* layout_; |
bae7f79e ILT |
58 | const Dirsearch& dirpath_; |
59 | const Input_argument& input_; | |
60 | Task_token* this_blocker_; | |
61 | Task_token* next_blocker_; | |
62 | }; | |
63 | ||
64 | // This Task handles adding the symbols to the symbol table. These | |
65 | // tasks must be run in the same order as the arguments appear on the | |
66 | // command line. | |
67 | ||
68 | class Add_symbols : public Task | |
69 | { | |
70 | public: | |
71 | // THIS_BLOCKER is used to prevent this task from running before the | |
72 | // one for the previous input file. NEXT_BLOCKER is used to prevent | |
73 | // the next task from running. | |
12e14209 ILT |
74 | Add_symbols(Symbol_table* symtab, Layout* layout, Object* object, |
75 | Read_symbols_data* sd, Task_token* this_blocker, | |
76 | Task_token* next_blocker) | |
77 | : symtab_(symtab), layout_(layout), object_(object), sd_(sd), | |
78 | this_blocker_(this_blocker), next_blocker_(next_blocker) | |
bae7f79e ILT |
79 | { } |
80 | ||
81 | ~Add_symbols(); | |
82 | ||
83 | // The standard Task methods. | |
84 | ||
85 | Is_runnable_type | |
86 | is_runnable(Workqueue*); | |
87 | ||
88 | Task_locker* | |
89 | locks(Workqueue*); | |
90 | ||
91 | void | |
92 | run(Workqueue*); | |
93 | ||
94 | private: | |
a2fb1b05 ILT |
95 | class Add_symbols_locker; |
96 | ||
14bfc3f5 | 97 | Symbol_table* symtab_; |
12e14209 | 98 | Layout* layout_; |
bae7f79e | 99 | Object* object_; |
12e14209 | 100 | Read_symbols_data* sd_; |
bae7f79e ILT |
101 | Task_token* this_blocker_; |
102 | Task_token* next_blocker_; | |
103 | }; | |
104 | ||
105 | } // end namespace gold | |
106 | ||
107 | #endif // !defined(GOLD_READSYMS_H) |