Sparse emits a large number of warnings for the linux kernel source
tree of the form:
./arch/x86/include/asm/uaccess.h:735:18: \
warning: incorrect type in argument 1 (different modifiers)
./arch/x86/include/asm/uaccess.h:735:18: expected void *<noident>
./arch/x86/include/asm/uaccess.h:735:18: got void const *from
Fix by making the first parameter to __builtin_object_size()
type "const void *" instead of "void *", which is consistent with GCC
behavior (the prototype for this builtin in GCC documentation is evidently
incorrect).
Signed-off-by: Lance Richardson <lrichard@xxxxxxxxxx>
---
lib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib.c b/lib.c
index aa2af68..122dd6f 100644
--- a/lib.c
+++ b/lib.c
@@ -917,7 +917,7 @@ void declare_builtin_functions(void)
add_pre_buffer("extern long double __builtin_nanl(const char *);\n");
/* And some __FORTIFY_SOURCE ones.. */
- add_pre_buffer ("extern __SIZE_TYPE__ __builtin_object_size(void *, int);\n");
+ add_pre_buffer ("extern __SIZE_TYPE__ __builtin_object_size(const void *, int);\n");
add_pre_buffer ("extern void * __builtin___memcpy_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
add_pre_buffer ("extern void * __builtin___memmove_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
add_pre_buffer ("extern void * __builtin___mempcpy_chk(void *, const void *, __SIZE_TYPE__, __SIZE_TYPE__);\n");
--
2.5.5
--
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