1 /*****************************************************************************/
5 /* Handle sizes of types and data */
9 /* (C) 2003-2008, Ullrich von Bassewit */
10 /* Roemerstrasse 52 */
11 /* D-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 /*****************************************************************************/
46 /*****************************************************************************/
48 /*****************************************************************************/
52 /* The name of the symbol used to encode the size. The name of this entry is
53 * choosen so that it cannot be accessed by the user.
55 const StrBuf SizeEntryName = LIT_STRBUF_INITIALIZER (".size");
59 /*****************************************************************************/
61 /*****************************************************************************/
65 SymEntry* GetSizeOfScope (SymTable* Scope)
66 /* Get the size of a scope. The function returns the symbol table entry that
67 * encodes the size, and will create a new entry if it does not exist.
70 return SymFind (Scope, &SizeEntryName, SYM_ALLOC_NEW);
75 SymEntry* GetSizeOfSymbol (SymEntry* Sym)
76 /* Get the size of a symbol table entry. The function returns the symbol table
77 * entry that encodes the size of the symbol and will create a new one if it
81 return SymFindLocal (Sym, &SizeEntryName, SYM_ALLOC_NEW);
86 SymEntry* DefSizeOfScope (SymTable* Scope, long Size)
87 /* Define the size of a scope and return the size symbol */
89 SymEntry* SizeSym = GetSizeOfScope (Scope);
90 SymDef (SizeSym, GenLiteralExpr (Size), ADDR_SIZE_DEFAULT, SF_NONE);
96 SymEntry* DefSizeOfSymbol (SymEntry* Sym, long Size)
97 /* Define the size of a symbol and return the size symbol */
99 SymEntry* SizeSym = GetSizeOfSymbol (Sym);
100 SymDef (SizeSym, GenLiteralExpr (Size), ADDR_SIZE_DEFAULT, SF_NONE);