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Re: [PATCH] SPU use 4 bytes for uid_t, gid_t and dev_t
- From: Patrick Mansfield <patmans at us dot ibm dot com>
- To: newlib at sourceware dot org, Jeff Johnston <jjohnstn at redhat dot com>
- Date: Mon, 10 Sep 2007 16:56:52 -0700
- Subject: Re: [PATCH] SPU use 4 bytes for uid_t, gid_t and dev_t
- References: <20070905162922.GA6148@us.ibm.com>
On Wed, Sep 05, 2007 at 09:29:22AM -0700, Patrick Mansfield wrote:
> For SPU, use 4 bytes for uid_t and gid_t.
>
> Use 4 bytes for dev_t to match the linux kernel dev_t size, though glibc
> uses 8 bytes, we want to keep our assist call ABI the same for now (in
> jsre_stat and mknod), and only the low 32 bits of dev are used in
> glibc.
>
> newlib ChangeLog:
>
> 2007-09-05 Patrick Mansfield <patmans@us.ibm.com>
>
> * libc/include/sys/types.h: For SPU, use 4 byte uid_t and gid_t,
> and 4 byte dev_t.
Jeff - do you want this redone, changing types.h and SPU machine _types.h?
If so, what should I use for define names? types.h already uses lower case
(like __timer_t_defined), but the other patch I made used uppercase
(__FPOS_T_DEFINED).
i.e. which form of case and underscore prefix: __gid_t_defined,
_gid_t_defined, __GID_T_DEFINED or _GID_T_DEFINED?
-- Patrick Mansfield
>
> Index: src/newlib/libc/include/sys/types.h
> ===================================================================
> --- src.orig/newlib/libc/include/sys/types.h
> +++ src/newlib/libc/include/sys/types.h
> @@ -161,6 +161,8 @@ typedef int32_t register_t;
> #if defined(__rtems__)
> /* device numbers are 32-bit major and and 32-bit minor */
> typedef unsigned long long dev_t;
> +#elif defined(__SPU__)
> +typedef unsigned dev_t;
> #else
> #ifndef __CYGWIN__
> typedef short dev_t;
> @@ -170,9 +172,14 @@ typedef short dev_t;
> #ifndef __CYGWIN__ /* which defines these types in it's own types.h. */
> typedef long off_t;
>
> +#ifdef __SPU__
> +typedef unsigned int uid_t;
> +typedef unsigned int gid_t;
> +#else
> typedef unsigned short uid_t;
> typedef unsigned short gid_t;
> #endif
> +#endif
>
> typedef int pid_t;
> #ifndef __CYGWIN__