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_INV = -1, /* Use to mark invalid slots */
60 LI_SLOT_ASM = 0, /* Normal assembler source */
61 LI_SLOT_EXT = 1, /* Externally supplied line info */
64 /* The LineInfo structure is shared between several fragments, so we need a
67 typedef struct LineInfo LineInfo;
69 unsigned Usage; /* Usage counter */
70 unsigned Type; /* Type of line info */
71 unsigned Index; /* Index */
72 FilePos Pos; /* File position */
77 /*****************************************************************************/
79 /*****************************************************************************/
83 void InitLineInfo (void);
84 /* Initialize the line infos */
86 int AllocLineInfoSlot (unsigned Type, unsigned Count);
87 /* Allocate a line info slot of the given type and return the slot index */
89 void FreeLineInfoSlot (int Slot);
90 /* Free the line info in the given slot. Note: Alloc/Free must be used in
94 void GenLineInfo (int Slot, const FilePos* Pos);
95 /* Generate a new line info in the given slot */
97 void ClearLineInfo (int Slot);
98 /* Clear the line info in the given slot */
100 void GetFullLineInfo (Collection* LineInfos, unsigned IncUsage);
101 /* Return full line infos, that is line infos for all slots in LineInfos. The
102 * function will clear LineInfos before usage and will increment the usage
103 * counter by IncUsage for all line infos returned.
106 LineInfo* ReleaseLineInfo (LineInfo* LI);
107 /* Decrease the reference count of the given line info and return it. The
108 * function will gracefully accept NULL pointers and do nothing in this case.
111 #if defined(HAVE_INLINE)
112 INLINE const FilePos* GetSourcePos (const LineInfo* LI)
113 /* Return the source file position from the given line info */
118 # define GetSourcePos(LI) (&(LI)->Pos)
121 #if defined(HAVE_INLINE)
122 INLINE unsigned GetLineInfoType (const LineInfo* LI)
123 /* Return the type of a line info */
125 return LI_GET_TYPE (LI->Type);
128 # define GetLineInfoType(LI) LI_GET_TYPE ((LI)->Type)
131 void WriteLineInfo (const Collection* LineInfos);
132 /* Write a list of line infos to the object file. MakeLineInfoIndex has to
136 void MakeLineInfoIndex (void);
137 /* Index the line infos */
139 void WriteLineInfos (void);
140 /* Write a list of all line infos to the object file. */
144 /* End of lineinfo.h */