1 /*****************************************************************************/
5 /* Source file line info management */
9 /* (C) 2001-2011, Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* 70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
48 /*****************************************************************************/
50 /*****************************************************************************/
54 /* Predefined line info slots. These are allocated when initializing the
55 * module. Beware: Some code relies on the fact that slot zero is the basic
56 * standard line info. It is assumed to be always there.
59 LI_SLOT_ASM = 0, /* Normal assembler source */
60 LI_SLOT_EXT = 1, /* Externally supplied line info */
63 /* The LineInfo structure is shared between several fragments, so we need a
66 typedef struct LineInfo LineInfo;
68 unsigned Usage; /* Usage counter */
69 unsigned Type; /* Type of line info */
70 unsigned Index; /* Index */
71 FilePos Pos; /* File position */
76 /*****************************************************************************/
78 /*****************************************************************************/
82 void InitLineInfo (void);
83 /* Initialize the line infos */
85 unsigned AllocLineInfoSlot (unsigned Type, unsigned Count);
86 /* Allocate a line info slot of the given type and return the slot index */
88 void FreeLineInfoSlot (unsigned Slot);
89 /* Free the line info in the given slot. Note: Alloc/Free must be used in
93 void GenLineInfo (unsigned Slot, const FilePos* Pos);
94 /* Generate a new line info in the given slot */
96 void ClearLineInfo (unsigned Slot);
97 /* Clear the line info in the given slot */
99 void GetFullLineInfo (Collection* LineInfos, unsigned IncUsage);
100 /* Return full line infos, that is line infos for all slots in LineInfos. The
101 * function will clear LineInfos before usage and will increment the usage
102 * counter by IncUsage for all line infos returned.
105 LineInfo* UseLineInfo (LineInfo* LI);
106 /* Increase the reference count of the given line info and return it. The
107 * function will gracefully accept NULL pointers and do nothing in this case.
110 LineInfo* ReleaseLineInfo (LineInfo* LI);
111 /* Decrease the reference count of the given line info and return it. The
112 * function will gracefully accept NULL pointers and do nothing in this case.
115 #if defined(HAVE_INLINE)
116 INLINE const FilePos* GetSourcePos (const LineInfo* LI)
117 /* Return the source file position from the given line info */
122 # define GetSourcePos(LI) (&(LI)->Pos)
125 #if defined(HAVE_INLINE)
126 INLINE unsigned GetLineInfoType (const LineInfo* LI)
127 /* Return the type of a line info */
129 return LI_GET_TYPE (LI->Type);
132 # define GetLineInfoType(LI) LI_GET_TYPE ((LI)->Type)
135 void WriteLineInfo (const Collection* LineInfos);
136 /* Write a list of line infos to the object file. MakeLineInfoIndex has to
140 void MakeLineInfoIndex (void);
141 /* Index the line infos */
143 void WriteLineInfos (void);
144 /* Write a list of all line infos to the object file. */
148 /* End of lineinfo.h */