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manual stack allocator should now work for sizeof(char)!=1

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This commit is contained in:
Jean-Marc Valin 2008-03-09 17:18:39 +11:00
parent ecd214d585
commit 7b5dc851ce
2 changed files with 4 additions and 3 deletions
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5
libcelt/stack_alloc.h
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@ -108,14 +108,15 @@
#define ALLOC_STACK(stack) (stack = (stack==0) ? celt_alloc_scratch(25000) : stack, VALGRIND_MAKE_NOACCESS(stack, 1000))
#define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1))
#define PUSH(stack, size, type) (VALGRIND_MAKE_NOACCESS(stack, 1000),ALIGN((stack),sizeof(type)),VALGRIND_MAKE_WRITABLE(stack, ((size)*sizeof(type))),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type))))
#define PUSH(stack, size, type) (VALGRIND_MAKE_NOACCESS(stack, 1000),ALIGN((stack),sizeof(type)/sizeof(char)),VALGRIND_MAKE_WRITABLE(stack, ((size)*sizeof(type)/sizeof(char))),(stack)+=((size)*sizeof(type)/sizeof(char)),(type*)((stack)-((size)*sizeof(type)/sizeof(char))))
#define RESTORE_STACK ((global_stack = _saved_stack),VALGRIND_MAKE_NOACCESS(global_stack, 1000))
#else
#define ALLOC_STACK(stack) (stack = (stack==0) ? celt_alloc_scratch(25000) : stack)
/* FIXME: Only align up to a certain size (not for structs) */
#define ALIGN(stack, size) ((stack) += ((size) - (long)(stack)) & ((size) - 1))
#define PUSH(stack, size, type) (ALIGN((stack),sizeof(type)),(stack)+=((size)*sizeof(type)),(type*)((stack)-((size)*sizeof(type))))
#define PUSH(stack, size, type) (ALIGN((stack),sizeof(type)/sizeof(char)),(stack)+=((size)*sizeof(type)/sizeof(char)),(type*)((stack)-((size)*sizeof(type)/sizeof(char))))
#define RESTORE_STACK (global_stack = _saved_stack)
#endif