pspsdk-1.0+beta2
prxtypes.h
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1 /*
2  * PSP Software Development Kit - http://www.pspdev.org
3  * -----------------------------------------------------------------------
4  * Licensed under the BSD license, see LICENSE in PSPSDK root for details.
5  *
6  * prxtypes.h - Definition of PRX specific types.
7  *
8  * Copyright (c) 2005 James Forshaw <tyranid@gmail.com>
9  *
10  * $Id: prxtypes.h 1095 2005-09-27 21:02:16Z jim $
11  */
12 
13 #ifndef __PRXTYPES_H__
14 #define __PRXTYPES_H__
15 
16 #include "types.h"
17 
18 #define PSP_MODULE_MAX_NAME 28
19 #define PSP_LIB_MAX_NAME 128
20 #define PSP_ENTRY_MAX_NAME 128
21 /* Define the maximum number of permitted entries per lib */
22 #define PSP_MAX_V_ENTRIES 255
23 #define PSP_MAX_F_ENTRIES 65535
24 
25 #define PSP_MODULE_INFO_NAME ".rodata.sceModuleInfo"
26 
27 /* Remove the .rel.sceStub.text section as it shouldn't have been there */
28 #define PSP_MODULE_REMOVE_REL ".rel.sceStub.text"
29 
30 /* Define a name for the unnamed first export */
31 #define PSP_SYSTEM_EXPORT "syslib"
32 
33 enum PspEntryType
34 {
35  PSP_ENTRY_FUNC = 0,
36  PSP_ENTRY_VAR = 1
37 };
38 
39 /* Define the in-prx structure types */
40 
41 /* Structure to hold the module export information */
42 struct PspModuleExport
43 {
44  u32 name;
45  u32 flags;
46  u32 counts;
47  u32 exports;
48 } __attribute__((packed));
49 
50 /* Structure to hold the module import information */
51 struct PspModuleImport
52 {
53  u32 name;
54  u32 flags;
55  u8 entry_size;
56  u8 var_count;
57  u16 func_count;
58  u32 nids;
59  u32 funcs;
60 };
61 
62 /* Structure to hold the module info */
63 struct PspModuleInfo
64 {
65  u32 flags;
66  char name[PSP_MODULE_MAX_NAME];
67  u32 gp;
68  u32 exports;
69  u32 exp_end;
70  u32 imports;
71  u32 imp_end;
72 };
73 
74 /* Define the loaded prx types */
75 struct PspEntry
76 {
77  /* Name of the entry */
78  char name[PSP_ENTRY_MAX_NAME];
79  /* Nid of the entry */
80  u32 nid;
81  /* Type of the entry */
82  enum PspEntryType type;
83  /* Virtual address of the entry in the loaded elf */
84  u32 addr;
85  /* Virtual address of the nid dword */
86  u32 nid_addr;
87 };
88 
89 /* Holds a linking entry for an import library */
90 struct PspLibImport
91 {
93  struct PspLibImport *prev;
95  struct PspLibImport *next;
97  char name[PSP_LIB_MAX_NAME];
98  /* Virtual address of the lib import stub */
99  u32 addr;
100  /* Copy of the import stub (in native byte order) */
101  struct PspModuleImport stub;
102  /* List of function entries */
103  struct PspEntry funcs[PSP_MAX_F_ENTRIES];
104  /* Number of function entries */
105  int f_count;
106  /* List of variable entried */
107  struct PspEntry vars[PSP_MAX_V_ENTRIES];
108  /* Number of variable entires */
109  int v_count;
110 };
111 
112 /* Holds a linking entry for an export library */
113 struct PspLibExport
114 {
116  struct PspLibExport *prev;
118  struct PspLibExport *next;
120  char name[PSP_LIB_MAX_NAME];
122  u32 addr;
124  struct PspModuleExport stub;
126  struct PspEntry funcs[PSP_MAX_F_ENTRIES];
128  int f_count;
130  struct PspEntry vars[PSP_MAX_V_ENTRIES];
132  int v_count;
133 };
134 
136 struct PspModule
137 {
139  char name[PSP_MODULE_MAX_NAME+1];
141  struct PspModuleInfo info;
143  u32 addr;
145  struct PspLibExport *exp_head;
147  struct PspLibImport *imp_head;
148 };
149 
150 #endif