linux-kernel - [PATCH] Introduce field 'taso' into struct linux

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Message-Id: <1220713795-5313-1-git-send-email-kirill@shutemov.name>
Date:	Sat,  6 Sep 2008 18:09:54 +0300
From:	"Kirill A. Shutemov" <kirill@...temov.name>
To:	linux-kernel@...r.kernel.org
Cc:	"Kirill A. Shutemov" <kirill@...temov.name>,
	Richard Henderson <rth@...ddle.net>,
	Ivan Kokshaysky <ink@...assic.park.msu.ru>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH] Introduce field 'taso' into struct linux_binprm

This change is Alpha-specific. It adds field 'taso' into struct
linux_binprm to remember if the application is TASO. Previously,
field sh_bang was wsed for this purpose.

Signed-off-by: Kirill A. Shutemov <kirill@...temov.name>
Cc: Richard Henderson <rth@...ddle.net>
Cc: Ivan Kokshaysky <ink@...assic.park.msu.ru>
Cc: Pavel Emelyanov <xemul@...nvz.org>
Cc: Alexander Viro <viro@...iv.linux.org.uk>
Cc: Andrew Morton <akpm@...ux-foundation.org>
---
 arch/alpha/include/asm/a.out.h |    2 +-
 fs/exec.c                      |    2 +-
 include/linux/binfmts.h        |    3 +++
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/include/asm/a.out.h b/arch/alpha/include/asm/a.out.h
index 02ce847..acdc681 100644
--- a/arch/alpha/include/asm/a.out.h
+++ b/arch/alpha/include/asm/a.out.h
@@ -95,7 +95,7 @@ struct exec
    Worse, we have to notice the start address before swapping to use
    /sbin/loader, which of course is _not_ a TASO application.  */
 #define SET_AOUT_PERSONALITY(BFPM, EX) \
-	set_personality (((BFPM->sh_bang || EX.ah.entry < 0x100000000L \
+	set_personality (((BFPM->taso || EX.ah.entry < 0x100000000L \
 			   ? ADDR_LIMIT_32BIT : 0) | PER_OSF4))
 
 #endif /* __KERNEL__ */
diff --git a/fs/exec.c b/fs/exec.c
index 32993be..a46de17 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1189,7 +1189,7 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs)
 			return retval;
 
 		/* Remember if the application is TASO.  */
-		bprm->sh_bang = eh->ah.entry < 0x100000000UL;
+		bprm->taso = eh->ah.entry < 0x100000000UL;
 
 		bprm->file = file;
 		bprm->loader = loader;
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 826f623..54980a3 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -36,6 +36,9 @@ struct linux_binprm{
 	unsigned long p; /* current top of mem */
 	unsigned int sh_bang:1,
 		     misc_bang:1;
+#ifdef __alpha__
+	unsigned int taso:1;
+#endif
 	struct file * file;
 	int e_uid, e_gid;
 	kernel_cap_t cap_post_exec_permitted;
-- 
1.5.6.5.GIT

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