scanner.o \
segment.o \
spool.o \
+ symentry.o \
symtab.o \
toklist.o \
ulabel.o
scanner.obj \
segment.obj \
spool.obj \
+ symentry.obj \
symtab.obj \
toklist.obj \
ulabel.obj
--- /dev/null
+/*****************************************************************************/
+/* */
+/* symentry.c */
+/* */
+/* Symbol table entry forward for the ca65 macroassembler */
+/* */
+/* */
+/* */
+/* (C) 1998-2003 Ullrich von Bassewitz */
+/* Römerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
+/* */
+/* */
+/* This software is provided 'as-is', without any expressed or implied */
+/* warranty. In no event will the authors be held liable for any damages */
+/* arising from the use of this software. */
+/* */
+/* Permission is granted to anyone to use this software for any purpose, */
+/* including commercial applications, and to alter it and redistribute it */
+/* freely, subject to the following restrictions: */
+/* */
+/* 1. The origin of this software must not be misrepresented; you must not */
+/* claim that you wrote the original software. If you use this software */
+/* in a product, an acknowledgment in the product documentation would be */
+/* appreciated but is not required. */
+/* 2. Altered source versions must be plainly marked as such, and must not */
+/* be misrepresented as being the original software. */
+/* 3. This notice may not be removed or altered from any source */
+/* distribution. */
+/* */
+/*****************************************************************************/
+
+
+
+#include <string.h>
+
+/* common */
+#include "xmalloc.h"
+
+/* ca65 */
+#include "scanner.h"
+#include "symentry.h"
+
+
+
+/*****************************************************************************/
+/* Data */
+/*****************************************************************************/
+
+
+
+SymEntry* SymList = 0; /* List of all symbol table entries */
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+SymEntry* NewSymEntry (const char* Name)
+/* Allocate a symbol table entry, initialize and return it */
+{
+ SymEntry* S;
+ unsigned Len;
+
+ /* Get the length of the name */
+ Len = strlen (Name);
+
+ /* Allocate memory */
+ S = xmalloc (sizeof (SymEntry) + Len);
+
+ /* Initialize the entry */
+ S->Left = 0;
+ S->Right = 0;
+ S->Locals = 0;
+ S->SymTab = 0;
+ S->Pos = CurPos;
+ S->Flags = 0;
+ S->V.Expr = 0;
+ memset (S->ConDesPrio, 0, sizeof (S->ConDesPrio));
+ memcpy (S->Name, Name, Len+1);
+
+ /* Insert it into the list of all entries */
+ S->List = SymList;
+ SymList = S;
+
+ /* Return the initialized entry */
+ return S;
+}
+
+
+
/* */
/* */
/* */
-/* (C) 1998 Ullrich von Bassewitz */
-/* Wacholderweg 14 */
-/* D-70597 Stuttgart */
-/* EMail: uz@musoftware.de */
+/* (C) 1998-2003 Ullrich von Bassewitz */
+/* Römerstrasse 52 */
+/* D-70794 Filderstadt */
+/* EMail: uz@cc65.org */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
+/* common */
+#include "cddefs.h"
+#include "filepos.h"
+
+
+
/*****************************************************************************/
/* Data */
/*****************************************************************************/
-/* Forward declaration for struct SymEntry */
+/* Bits for the Flags value in SymEntry */
+#define SF_NONE 0x0000 /* Empty flag set */
+#define SF_USER 0x0001 /* User bit */
+#define SF_TRAMPOLINE 0x0002 /* Trampoline entry */
+#define SF_EXPORT 0x0004 /* Export this symbol */
+#define SF_IMPORT 0x0008 /* Import this symbol */
+#define SF_GLOBAL 0x0010 /* Global symbol */
+#define SF_ZP 0x0020 /* Declared as zeropage symbol */
+#define SF_ABS 0x0040 /* Declared as absolute symbol */
+#define SF_LABEL 0x0080 /* Used as a label */
+#define SF_FORCED 0x0100 /* Forced import, SF_IMPORT also set */
+#define SF_FINALIZED 0x0200 /* Symbol is finalized */
+#define SF_INDEXED 0x0800 /* Index is valid */
+#define SF_CONST 0x1000 /* The symbol has a constant value */
+#define SF_MULTDEF 0x2000 /* Multiply defined symbol */
+#define SF_DEFINED 0x4000 /* Defined */
+#define SF_REFERENCED 0x8000 /* Referenced */
+
+/* Structure of a symbol table entry */
typedef struct SymEntry SymEntry;
+struct SymEntry {
+ SymEntry* Left; /* Lexically smaller entry */
+ SymEntry* Right; /* Lexically larger entry */
+ SymEntry* List; /* List of all entries */
+ SymEntry* Locals; /* Root of subtree for local symbols */
+ struct SymTable* SymTab; /* Table this symbol is in, 0 for locals */
+ FilePos Pos; /* File position for this symbol */
+ unsigned Flags; /* Symbol flags */
+ unsigned Index; /* Index of import/export entries */
+ union {
+ struct ExprNode* Expr; /* Expression if CONST not set */
+ long Val; /* Value (if CONST set) */
+ SymEntry* Sym; /* Symbol (if trampoline entry) */
+ } V;
+ unsigned char ConDesPrio[CD_TYPE_COUNT]; /* ConDes priorities... */
+ /* ...actually value+1 (used as flag) */
+ char Name [1]; /* Dynamic allocation */
+};
+
+/* List of all symbol table entries */
+extern SymEntry* SymList;
+
+
+
+/*****************************************************************************/
+/* Code */
+/*****************************************************************************/
+
+
+
+SymEntry* NewSymEntry (const char* Name);
+/* Allocate a symbol table entry, initialize and return it */
#include <string.h>
/* common */
-#include "cddefs.h"
#include "check.h"
#include "hashstr.h"
#include "symdefs.h"
-/* Bits for the Flags value in SymEntry */
-#define SF_NONE 0x0000 /* Empty flag set */
-#define SF_USER 0x0001 /* User bit */
-#define SF_TRAMPOLINE 0x0002 /* Trampoline entry */
-#define SF_EXPORT 0x0004 /* Export this symbol */
-#define SF_IMPORT 0x0008 /* Import this symbol */
-#define SF_GLOBAL 0x0010 /* Global symbol */
-#define SF_ZP 0x0020 /* Declared as zeropage symbol */
-#define SF_ABS 0x0040 /* Declared as absolute symbol */
-#define SF_LABEL 0x0080 /* Used as a label */
-#define SF_FORCED 0x0100 /* Forced import, SF_IMPORT also set */
-#define SF_FINALIZED 0x0200 /* Symbol is finalized */
-#define SF_INDEXED 0x0800 /* Index is valid */
-#define SF_CONST 0x1000 /* The symbol has a constant value */
-#define SF_MULTDEF 0x2000 /* Multiply defined symbol */
-#define SF_DEFINED 0x4000 /* Defined */
-#define SF_REFERENCED 0x8000 /* Referenced */
-
-/* Combined stuff */
+/* Combined symbol entry flags used within this module */
#define SF_UNDEFMASK (SF_REFERENCED | SF_DEFINED | SF_IMPORT)
#define SF_UNDEFVAL (SF_REFERENCED)
#define SF_EXPMASK (SF_TRAMPOLINE | SF_EXPORT)
#define SF_DBGINFOMASK (SF_TRAMPOLINE | SF_DEFINED | SF_EXPORT | SF_IMPORT)
#define SF_DBGINFOVAL (SF_DEFINED)
-/* Structure of a symbol table entry */
-struct SymEntry {
- SymEntry* Left; /* Lexically smaller entry */
- SymEntry* Right; /* Lexically larger entry */
- SymEntry* List; /* List of all entries */
- SymEntry* Locals; /* Root of subtree for local symbols */
- struct SymTable* SymTab; /* Table this symbol is in, 0 for locals */
- FilePos Pos; /* File position for this symbol */
- unsigned Flags; /* Symbol flags */
- unsigned Index; /* Index of import/export entries */
- union {
- struct ExprNode* Expr; /* Expression if CONST not set */
- long Val; /* Value (if CONST set) */
- SymEntry* Sym; /* Symbol (if trampoline entry) */
- } V;
- unsigned char ConDesPrio[CD_TYPE_COUNT]; /* ConDes priorities... */
- /* ...actually value+1 (used as flag) */
- char Name [1]; /* Dynamic allocation */
-};
-
-
-
/* Definitions for the hash table */
#define MAIN_HASHTAB_SIZE 213
#define SUB_HASHTAB_SIZE 53
SymEntry* Table [1]; /* Dynamic allocation */
};
-
-
/* Arguments for SymFind */
#define SF_FIND_EXISTING 0
#define SF_ALLOC_NEW 1
-
-
/* Symbol table variables */
-static SymEntry* SymList = 0; /* List of all symbol table entries */
static SymEntry* SymLast = 0; /* Pointer to last defined symbol */
static SymTable* SymTab = 0; /* Pointer to current symbol table */
static SymTable* RootTab = 0; /* Root symbol table */
-static SymEntry* NewSymEntry (const char* Name)
-/* Allocate a symbol table entry, initialize and return it */
-{
- SymEntry* S;
- unsigned Len;
-
- /* Get the length of the name */
- Len = strlen (Name);
-
- /* Allocate memory */
- S = xmalloc (sizeof (SymEntry) + Len);
-
- /* Initialize the entry */
- S->Left = 0;
- S->Right = 0;
- S->Locals = 0;
- S->SymTab = 0;
- S->Pos = CurPos;
- S->Flags = 0;
- S->V.Expr = 0;
- memset (S->ConDesPrio, 0, sizeof (S->ConDesPrio));
- memcpy (S->Name, Name, Len+1);
-
- /* Insert it into the list of all entries */
- S->List = SymList;
- SymList = S;
-
- /* Return the initialized entry */
- return S;
-}
-
-
-
static SymTable* NewSymTable (unsigned Size)
/* Allocate a symbol table on the heap and return it */
{
projects / cc65 / commitdiff