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SymEntry struct cleanups.

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This commit is contained in:
acqn 2022-10-11 14:14:38 +08:00
parent ad7c5a6617
commit 959be2c98c
2 changed files with 44 additions and 41 deletions
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8
src/cc65/symentry.c
View File

@ -40,6 +40,7 @@
/* cc65 */
#include "anonname.h"
#include "asmlabel.h"
#include "declare.h"
#include "error.h"
#include "symentry.h"
@ -65,13 +66,12 @@ SymEntry* NewSymEntry (const char* Name, unsigned Flags)
E->NextHash = 0;
E->PrevSym = 0;
E->NextSym = 0;
E->Link = 0;
E->Owner = 0;
E->Flags = Flags;
E->Type = 0;
E->Attr = 0;
E->AsmName = 0;
E->V.BssName = 0;
memset (&E->V, 0, sizeof (E->V));
memcpy (E->Name, Name, Len+1);
/* Return the new entry */
@ -250,7 +250,9 @@ void SymUseAttr (SymEntry* Sym, struct Declaration* D)
void SymSetAsmName (SymEntry* Sym)
/* Set the assembler name for an external symbol from the name of the symbol */
/* Set the assembler name for an external symbol from the name of the symbol.
** The symbol must have no assembler name set yet.
*/
{
unsigned Len;

77
src/cc65/symentry.h
View File

@ -128,7 +128,6 @@ struct SymEntry {
SymEntry* NextHash; /* Next entry in hash list */
SymEntry* PrevSym; /* Previous symbol in dl list */
SymEntry* NextSym; /* Next symbol double linked list */
SymEntry* Link; /* General purpose single linked list */
struct SymTable* Owner; /* Symbol table the symbol is in */
unsigned Flags; /* Symbol flags */
Type* Type; /* Symbol type */
@ -138,27 +137,9 @@ struct SymEntry {
/* Data that differs for the different symbol types */
union {
/* Offset for locals or struct members */
/* Offset for locals */
int Offs;
/* Data for anonymous struct or union members */
struct {
int Offs; /* Byte offset into struct */
unsigned ANumber; /* Numeric ID */
SymEntry* Field; /* The real field aliased */
} A;
/* Label name for static symbols */
struct {
unsigned Label;
Collection *DefsOrRefs;
struct CodeEntry *IndJumpFrom;
} L;
/* Value of SP adjustment needed after forward 'goto' */
unsigned short SPAdjustment;
/* Register bank offset and offset of the saved copy on stack for
** register variables.
*/
@ -167,32 +148,50 @@ struct SymEntry {
int SaveOffs;
} R;
/* Value for constants (including enums) */
/* Segment name for tentantive global definitions */
const char* BssName;
/* Value for integer constants (including enumerators) */
long ConstVal;
/* Data for structs/unions */
struct {
struct SymTable* SymTab; /* Member symbol table */
unsigned Size; /* Size of the union/struct */
unsigned ACount; /* Count of anonymous fields */
} S;
/* Data for enums */
struct {
struct SymTable* SymTab; /* Member symbol table */
const Type* Type; /* Underlying type */
} E;
/* Data for functions */
struct {
struct Segments* Seg; /* Segments for this function */
struct LiteralPool* LitPool; /* Literal pool for this function */
} F;
/* Segment name for tentantive global definitions */
const char* BssName;
/* Label name for static symbols */
struct {
unsigned Label;
Collection *DefsOrRefs;
struct CodeEntry *IndJumpFrom;
} L;
/* Value of SP adjustment needed after forward 'goto' */
unsigned short SPAdjustment;
/* Data for anonymous struct or union members */
struct {
int Offs; /* Byte offset into struct */
unsigned ANumber; /* Numeric ID */
SymEntry* Field; /* The real field aliased */
} A;
/* Data for structs/unions tags */
struct {
struct SymTable* SymTab; /* Member symbol table */
unsigned Size; /* Size of the union/struct */
unsigned ACount; /* Count of anonymous fields */
} S;
/* Data for enums tags */
struct {
struct SymTable* SymTab; /* Member symbol table */
const Type* Type; /* Underlying type */
} E;
} V;
char Name[1]; /* Name, dynamically allocated */
char Name[1]; /* Name, dynamically allocated */
};
@ -303,7 +302,9 @@ void SymUseAttr (SymEntry* Sym, struct Declaration* D);
/* Use the attributes from the declaration for this symbol */
void SymSetAsmName (SymEntry* Sym);
/* Set the assembler name for an external symbol from the name of the symbol */
/* Set the assembler name for an external symbol from the name of the symbol.
** The symbol must have no assembler name set yet.
*/
void CvtRegVarToAuto (SymEntry* Sym);
/* Convert a register variable to an auto variable */