[PATCH] Introduce field 'taso' into struct linux_binprm

From: Kirill A. Shutemov
Date: Sat Sep 06 2008 - 11:09:43 EST


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@xxxxxxxxxxxxx>
Cc: Richard Henderson <rth@xxxxxxxxxxx>
Cc: Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>
Cc: Pavel Emelyanov <xemul@xxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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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