On Tue, 2014-04-22 at 16:22 +1000, Stephen Rothwell wrote:
> Hi Eric,
>
> After merging the audit tree, today's linux-next build (sparc defconfig)
> failed like this:
>
> In file included from include/linux/audit.h:29:0,
> from mm/mmap.c:33:
> arch/sparc/include/asm/syscall.h: In function 'syscall_get_arch':
> arch/sparc/include/asm/syscall.h:131:9: error: 'TIF_32BIT' undeclared (first
> use in this function)
> arch/sparc/include/asm/syscall.h:131:9: note: each undeclared identifier is
> reported only once for each function it appears in
>
> And many more ...
>
> Caused by commit 374c0c054122 ("ARCH: AUDIT: implement syscall_get_arch
> for all arches").
>
> I applied this patch for today:
>
> From: Stephen Rothwell <s...@canb.auug.org.au>
> Date: Tue, 22 Apr 2014 16:18:53 +1000
> Subject: [PATCH] fix ARCH: AUDIT: implement syscall_get_arch for all arches
>
> Signed-off-by: Stephen Rothwell <s...@canb.auug.org.au>
> ---
> arch/sparc/include/asm/syscall.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/sparc/include/asm/syscall.h
> b/arch/sparc/include/asm/syscall.h
> index fed3d511b108..a5a8153766b3 100644
> --- a/arch/sparc/include/asm/syscall.h
> +++ b/arch/sparc/include/asm/syscall.h
> @@ -128,8 +128,12 @@ static inline void syscall_set_arguments(struct
> task_struct *task,
>
> static inline int syscall_get_arch(void)
> {
> +#if defined(__sparc__) && defined(__arch64__)
> return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
> : AUDIT_ARCH_SPARC64;
> +#else
> + return AUDIT_ARCH_SPARC;
> +#endif
> }
>
> #endif /* __ASM_SPARC_SYSCALL_H */
> --
I swear I saw this and I fixed it. Drat. Do we want to do it this way?
Above in syscall_get_arguments() they use
#ifdef CONFIG_SPARC64
if (test_tsk_thread_flag(task, TIF_32BIT))
zero_extend = 1;
#endif
Is CONFIG_SPARC64 a better choice than:
defined(__sparc__) && defined(__arch64__)
Maybe even better would be to copy what you suggested in powerpc:
---
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index fed3d51..49f71fd 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -128,8 +128,7 @@ static inline void syscall_set_arguments(struct task_struct
*task,
static inline int syscall_get_arch(void)
{
- return test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC
- : AUDIT_ARCH_SPARC64;
+ return is_32bit_task() ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64;
}
#endif /* __ASM_SPARC_SYSCALL_H */
diff --git a/arch/sparc/include/asm/thread_info_32.h
b/arch/sparc/include/asm/thread_info_32.h
index 96efa7a..acd2be0 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -130,6 +130,8 @@ register struct thread_info *current_thread_info_reg
asm("g6");
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | \
_TIF_SIGPENDING)
+#define is_32bit_task() (0)
+
#endif /* __KERNEL__ */
#endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/sparc/include/asm/thread_info_64.h
b/arch/sparc/include/asm/thread_info_64.h
index a5f01ac..5a4f660 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -219,6 +219,8 @@ register struct thread_info *current_thread_info_reg
asm("g6");
_TIF_NEED_RESCHED)
#define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | _TIF_SIGPENDING)
+#define is_32bit_task() (test_thread_flag(TIF_32BIT))
+
/*
* Thread-synchronous status.
*
--
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