[PATCH] arm64: add workaround for ambiguous C99 stdint.h types

Catalin Marinas catalin.marinas at arm.com
Mon Feb 17 07:23:34 EST 2014


Hi Ard,

On Sun, Jan 26, 2014 at 08:30:48PM +0000, Ard Biesheuvel wrote:
> In a way similar to ARM commit 09096f6a0ee2 ("ARM: 7822/1: add workaround
> for ambiguous C99 stdint.h types"), this patch redefines the macros that
> are used in stdint.h so its definitions of uint64_t and int64_t are
> compatible with those of the kernel.
> 
> In order to do so, drop types.h from generic-y and create a specific arm64
> version identical to the generic one with just the #define overrides added.

I tried but still can't get what this patch is about. Do the
linux/types.h types ever get to user space? We have uapi/linux/types.h
for this.

Can you give an example of where this is needed? Which source file
includes both stdint.h and linux/types.h (non-uapi version)?

-- 
Catalin



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