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Restructured parts of locals.c. This will also fix a problem where arrays with

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unspecified size but an initializer would cause an error when -Cl (static
locals) was in effect.


git-svn-id: svn://svn.cc65.org/cc65/trunk@4385 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2009-10-23 09:22:17 +00:00
parent 54a8a778eb
commit 814be2524b
1 changed files with 63 additions and 54 deletions
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117
src/cc65/locals.c
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@ -61,6 +61,41 @@
static unsigned AllocLabel (void (*UseSeg) ())
/* Switch to a segment, define a local label and return it */
{
unsigned Label;
/* Switch to the segment */
UseSeg ();
/* Define the variable label */
Label = GetLocalLabel ();
g_defdatalabel (Label);
/* Return the label */
return Label;
}
static unsigned AllocStorage (void (*UseSeg) (), unsigned Size)
/* Reserve Size bytes of BSS storage prefixed by a local label. Return the
* label.
*/
{
/* Switch to the segment and define the label */
unsigned Label = AllocLabel (UseSeg);
/* Reserve space for the data */
g_res (Size);
/* Return the label */
return Label;
}
static unsigned ParseRegisterDecl (Declaration* Decl, unsigned* SC, int Reg)
/* Parse the declaration of a register variable. The function returns the
* symbol data, which is the offset of the variable in the register bank.
@ -89,12 +124,10 @@ static unsigned ParseRegisterDecl (Declaration* Decl, unsigned* SC, int Reg)
/* Special handling for compound types */
if (IsCompound) {
/* Switch to read only data */
g_userodata ();
/* Define a label for the initialization data */
InitLabel = GetLocalLabel ();
g_defdatalabel (InitLabel);
/* Switch to read only data and define a label for the
* initialization data.
*/
InitLabel = AllocLabel (g_userodata);
/* Parse the initialization generating a memory image of the
* data in the RODATA segment. The function does return the size
@ -150,7 +183,6 @@ static unsigned ParseAutoDecl (Declaration* Decl, unsigned* SC)
{
unsigned Flags;
unsigned SymData;
unsigned InitLabel;
/* Determine if this is a compound variable */
int IsCompound = IsClassStruct (Decl->Type) || IsTypeArray (Decl->Type);
@ -172,12 +204,10 @@ static unsigned ParseAutoDecl (Declaration* Decl, unsigned* SC)
/* Special handling for compound types */
if (IsCompound) {
/* Switch to read only data */
g_userodata ();
/* Define a label for the initialization data */
InitLabel = GetLocalLabel ();
g_defdatalabel (InitLabel);
/* Switch to read only data and define a label for the
* initialization data.
*/
unsigned InitLabel = AllocLabel (g_userodata);
/* Parse the initialization generating a memory image of the
* data in the RODATA segment. The function will return the
@ -248,16 +278,6 @@ static unsigned ParseAutoDecl (Declaration* Decl, unsigned* SC)
/* Static local variables. */
*SC = (*SC & ~SC_AUTO) | SC_STATIC;
/* Put them into the BSS */
g_usebss ();
/* Define the variable label */
SymData = GetLocalLabel ();
g_defdatalabel (SymData);
/* Reserve space for the data */
g_res (Size);
/* Allow assignments */
if (CurTok.Tok == TOK_ASSIGN) {
@ -268,23 +288,27 @@ static unsigned ParseAutoDecl (Declaration* Decl, unsigned* SC)
if (IsCompound) {
/* Switch to read only data */
g_userodata ();
/* Define a label for the initialization data */
InitLabel = GetLocalLabel ();
g_defdatalabel (InitLabel);
/* Switch to read only data and define a label for the
* initialization data.
*/
unsigned InitLabel = AllocLabel (g_userodata);
/* Parse the initialization generating a memory image of the
* data in the RODATA segment.
*/
ParseInit (Decl->Type);
Size = ParseInit (Decl->Type);
/* Allocate a label and space for the variable */
SymData = AllocStorage (g_usebss, Size);
/* Generate code to copy this data into the variable space */
g_initstatic (InitLabel, SymData, Size);
} else {
/* Allocate a label and space for the variable */
SymData = AllocStorage (g_usebss, Size);
/* Parse the expression */
hie1 (&Expr);
@ -320,49 +344,34 @@ static unsigned ParseStaticDecl (Declaration* Decl, unsigned* SC)
*/
{
unsigned SymData;
/* Get the size of the variable */
unsigned Size = SizeOf (Decl->Type);
unsigned Size;
/* Static data */
if (CurTok.Tok == TOK_ASSIGN) {
/* Initialization ahead, switch to data segment */
/* Initialization ahead, switch to data segment and define a label */
if (IsQualConst (Decl->Type)) {
g_userodata ();
SymData = AllocLabel (g_userodata);
} else {
g_usedata ();
SymData = AllocLabel (g_usedata);
}
/* Define the variable label */
SymData = GetLocalLabel ();
g_defdatalabel (SymData);
/* Skip the '=' */
NextToken ();
/* Allow initialization of static vars */
ParseInit (Decl->Type);
/* If the previous size has been unknown, it must be known now */
if (Size == 0) {
Size = SizeOf (Decl->Type);
}
Size = ParseInit (Decl->Type);
/* Mark the variable as referenced */
*SC |= SC_REF;
} else {
/* Uninitialized data, use BSS segment */
g_usebss ();
/* Get the size of the variable */
Size = SizeOf (Decl->Type);
/* Define the variable label */
SymData = GetLocalLabel ();
g_defdatalabel (SymData);
/* Reserve space for the data */
g_res (Size);
/* Allocate a label and space for the variable in the BSS segment */
SymData = AllocStorage (g_usebss, Size);
}