Re: [Qemu-devel] [PATCH 16/19] Rename get_tls to tls_var

["Andreas Färber" <afaerber@suse.de>]

Am 06.12.2011 12:01, schrieb Stefan Hajnoczi:
> From: Jan Kiszka <jan.kiszka@siemens.com>
> 
> get_tls() can serve as a lvalue as well, so 'get' might be confusing.

Note that this does not work for POSIX pthread_getspecific(), which
we'll need to support at some point in time, so I don't think this is a
terribly good idea.

At least please don't start actually using it as lvalue, we'd need a
set_tls() for assignment (in which case get_tls() would've provided nice
symmetry).

Andreas

> 
> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
> ---
>  cpu-all.h  |    2 +-
>  qemu-tls.h |    4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/cpu-all.h b/cpu-all.h
> index 7246a67..9d78715 100644
> --- a/cpu-all.h
> +++ b/cpu-all.h
> @@ -336,7 +336,7 @@ void QEMU_NORETURN cpu_abort(CPUState *env, const char *fmt, ...)
>      GCC_FMT_ATTR(2, 3);
>  extern CPUState *first_cpu;
>  DECLARE_TLS(CPUState *,cpu_single_env);
> -#define cpu_single_env get_tls(cpu_single_env)
> +#define cpu_single_env tls_var(cpu_single_env)
>  
>  /* Flags for use in ENV->INTERRUPT_PENDING.
>  
> diff --git a/qemu-tls.h b/qemu-tls.h
> index 5b70f10..b92ea9d 100644
> --- a/qemu-tls.h
> +++ b/qemu-tls.h
> @@ -41,12 +41,12 @@
>  #ifdef __linux__
>  #define DECLARE_TLS(type, x) extern DEFINE_TLS(type, x)
>  #define DEFINE_TLS(type, x)  __thread __typeof__(type) tls__##x
> -#define get_tls(x)           tls__##x
> +#define tls_var(x)           tls__##x
>  #else
>  /* Dummy implementations which define plain global variables */
>  #define DECLARE_TLS(type, x) extern DEFINE_TLS(type, x)
>  #define DEFINE_TLS(type, x)  __typeof__(type) tls__##x
> -#define get_tls(x)           tls__##x
> +#define tls_var(x)           tls__##x
>  #endif
>  
>  #endif


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