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Make symbol creation funcs return ptr to symbol

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This commit is contained in:
ISSOtm
2020-03-10 16:36:02 +01:00
parent 3948795d49
commit 2ea329c920
2 changed files with 27 additions and 22 deletions
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12
include/asm/symbol.h
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@@ -77,8 +77,8 @@ static inline bool sym_IsExported(struct sSymbol const *sym)
int32_t sym_GetValue(struct sSymbol const *sym);
uint32_t sym_CalcHash(const char *s);
void sym_SetExportAll(uint8_t set);
void sym_AddLocalReloc(char const *tzSym);
void sym_AddReloc(char const *tzSym);
struct sSymbol *sym_AddLocalReloc(char const *tzSym);
struct sSymbol *sym_AddReloc(char const *tzSym);
void sym_Export(char const *tzSym);
void sym_PrintSymbolTable(void);
struct sSymbol *sym_FindMacro(char const *s);
@@ -87,8 +87,8 @@ void sym_AddNewMacroArg(char const *s);
void sym_SaveCurrentMacroArgs(char *save[]);
void sym_RestoreCurrentMacroArgs(char *save[]);
void sym_UseNewMacroArgs(void);
void sym_AddEqu(char const *tzSym, int32_t value);
void sym_AddSet(char const *tzSym, int32_t value);
struct sSymbol *sym_AddEqu(char const *tzSym, int32_t value);
struct sSymbol *sym_AddSet(char const *tzSym, int32_t value);
void sym_Init(void);
uint32_t sym_GetConstantValue(char const *s);
struct sSymbol *sym_FindSymbol(char const *tzName);
@@ -96,10 +96,10 @@ char *sym_FindMacroArg(int32_t i);
char *sym_GetStringValue(struct sSymbol const *sym);
void sym_UseCurrentMacroArgs(void);
void sym_SetMacroArgID(uint32_t nMacroCount);
void sym_AddMacro(char const *tzSym, int32_t nDefLineNo);
struct sSymbol *sym_AddMacro(char const *tzSym, int32_t nDefLineNo);
void sym_Ref(char const *tzSym);
void sym_ShiftCurrentMacroArgs(void);
void sym_AddString(char const *tzSym, char const *tzValue);
struct sSymbol *sym_AddString(char const *tzSym, char const *tzValue);
uint32_t sym_GetDefinedValue(char const *s);
void sym_Purge(char const *tzName);
bool sym_IsRelocDiffDefined(char const *tzSym1, char const *tzSym2);

37
src/asm/symbol.c
View File

@@ -441,7 +441,7 @@ static struct sSymbol *createNonrelocSymbol(char const *tzSym)
/*
* Add an equated symbol
*/
void sym_AddEqu(char const *tzSym, int32_t value)
struct sSymbol *sym_AddEqu(char const *tzSym, int32_t value)
{
struct sSymbol *nsym = createNonrelocSymbol(tzSym);
@@ -450,6 +450,8 @@ void sym_AddEqu(char const *tzSym, int32_t value)
nsym->isConstant = true;
nsym->pScope = NULL;
updateSymbolFilename(nsym);
return nsym;
}
/*
@@ -464,7 +466,7 @@ void sym_AddEqu(char const *tzSym, int32_t value)
* of the string are enough: sym_AddString("M_PI", "3.1415"). This is the same
* as ``` M_PI EQUS "3.1415" ```
*/
void sym_AddString(char const *tzSym, char const *tzValue)
struct sSymbol *sym_AddString(char const *tzSym, char const *tzValue)
{
struct sSymbol *nsym = createNonrelocSymbol(tzSym);
@@ -478,12 +480,14 @@ void sym_AddString(char const *tzSym, char const *tzValue)
nsym->type = SYM_EQUS;
nsym->ulMacroSize = strlen(tzValue);
nsym->pScope = NULL;
return nsym;
}
/*
* Alter a SET symbols value
*/
void sym_AddSet(char const *tzSym, int32_t value)
struct sSymbol *sym_AddSet(char const *tzSym, int32_t value)
{
struct sSymbol *nsym = findsymbol(tzSym, NULL);
@@ -514,28 +518,30 @@ void sym_AddSet(char const *tzSym, int32_t value)
nsym->isConstant = true;
nsym->pScope = NULL;
updateSymbolFilename(nsym);
return nsym;
}
/*
* Add a local (.name) relocatable symbol
*/
void sym_AddLocalReloc(char const *tzSym)
struct sSymbol *sym_AddLocalReloc(char const *tzSym)
{
if (pScope) {
char fullname[MAXSYMLEN + 1];
fullSymbolName(fullname, sizeof(fullname), tzSym, pScope);
sym_AddReloc(fullname);
return sym_AddReloc(fullname);
} else {
yyerror("Local label '%s' in main scope", tzSym);
return NULL;
}
}
/*
* Add a relocatable symbol
*/
void sym_AddReloc(char const *tzSym)
struct sSymbol *sym_AddReloc(char const *tzSym)
{
struct sSymbol *scope = NULL;
struct sSymbol *nsym;
@@ -544,7 +550,7 @@ void sym_AddReloc(char const *tzSym)
if (localPtr != NULL) {
if (!pScope) {
yyerror("Local label in main scope");
return;
return NULL;
}
struct sSymbol *parent = pScope->pScope ?
@@ -587,6 +593,7 @@ void sym_AddReloc(char const *tzSym)
updateSymbolFilename(nsym);
pScope = findsymbol(tzSym, scope);
return pScope;
}
/*
@@ -650,7 +657,7 @@ void sym_Export(char const *tzSym)
/*
* Add a macro definition
*/
void sym_AddMacro(char const *tzSym, int32_t nDefLineNo)
struct sSymbol *sym_AddMacro(char const *tzSym, int32_t nDefLineNo)
{
struct sSymbol *nsym = createNonrelocSymbol(tzSym);
@@ -664,6 +671,8 @@ void sym_AddMacro(char const *tzSym, int32_t nDefLineNo)
* override this with the actual definition line
*/
nsym->nFileLine = nDefLineNo;
return nsym;
}
/*
@@ -725,16 +734,12 @@ void sym_Init(void)
for (i = 0; i < HASHSIZE; i++)
tHashedSymbols[i] = NULL;
sym_AddReloc("@");
pPCSymbol = findsymbol("@", NULL);
pPCSymbol = sym_AddReloc("@");
pPCSymbol->Callback = CallbackPC;
sym_AddEqu("_NARG", 0);
p_NARGSymbol = findsymbol("_NARG", NULL);
p_NARGSymbol = sym_AddEqu("_NARG", 0);
p_NARGSymbol->Callback = Callback_NARG;
sym_AddEqu("__LINE__", 0);
p__LINE__Symbol = findsymbol("__LINE__", NULL);
p__LINE__Symbol = sym_AddEqu("__LINE__", 0);
p__LINE__Symbol->Callback = Callback__LINE__;
sym_AddSet("_RS", 0);
time_t now = time(NULL);