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Fixed a problem in GetSymParentScope, where an error in the assembler input

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somewhere before could lead to an invalid memory access.


git-svn-id: svn://svn.cc65.org/cc65/trunk@5031 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz
2011-05-31 14:51:21 +00:00
parent 9c267dab89
commit 9c53f8879c
1 changed files with 5 additions and 0 deletions
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5
src/ca65/symentry.c
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@@ -627,6 +627,11 @@ SymTable* GetSymParentScope (SymEntry* S)
if ((S->Flags & SF_LOCAL) != 0) { if ((S->Flags & SF_LOCAL) != 0) {
/* This is a cheap local symbol */ /* This is a cheap local symbol */
return 0; return 0;
} else if (S->Sym.Tab == 0) {
/* Symbol not in a table. This may happen if there have been errors
* before. Return NULL in this case to avoid further errors.
*/
return 0;
} else { } else {
/* This is a global symbol */ /* This is a global symbol */
return S->Sym.Tab->Parent; return S->Sym.Tab->Parent;