[PATCH 4/6] Define a new __alloc_size2 attribute to complement the exiting support.
Sebastian Huber <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <[email protected]> |
From: pfg <[email protected]> At least on GCC7 calling __alloc_size(x) twice is not equivalent to calling using the attribute once with two arguments. The later is the documented use in GCC documentation so add a new alloc_size(n, x) alternative to cover for the few places where it is used: basically: calloc(3), reallocarray(3) and mallocarray(9). Submitted by: Mark Millard MFC after: 3 days Reference: http://docs.freebsd.org/cgi/mid.cgi?F227842D-6BE2-4680-82E7-07906AF61CD7 --- newlib/libc/include/sys/cdefs.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h index db870783e..7c2aa3bc1 100644 --- a/newlib/libc/include/sys/cdefs.h +++ b/newlib/libc/include/sys/cdefs.h @@ -250,8 +250,10 @@ #endif #if __GNUC_PREREQ__(4, 3) || __has_attribute(__alloc_size__) #define __alloc_size(x) __attribute__((__alloc_size__ x)) +#define __alloc_size2(n, x) __attribute__((__alloc_size__(n, x))) #else #define __alloc_size(x) +#define __alloc_size2(n, x) #endif #if __GNUC_PREREQ__(4, 9) || __has_attribute(__alloc_align__) #define __alloc_align(x) __attribute__((__alloc_align__ x)) -- 2.13.7