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[PARISC] Switch is_compat_task to use TIF_32BIT

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Stop using PER_LINUX32 to designate processes needing
compaterizing. Convert is_compat_task to use TIF_32BIT and
set TIF_32BIT in binfmt_elf32.c

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Kyle McMartin 2006-08-27 11:04:26 -04:00 committed by Matthew Wilcox
parent 8f611c453c
commit df570b9c28
4 changed files with 6 additions and 29 deletions
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24
arch/parisc/kernel/binfmt_elf32.c
View File

@ -87,7 +87,7 @@ struct elf_prpsinfo32
*/
#define SET_PERSONALITY(ex, ibcs2) \
current->personality = PER_LINUX32; \
set_thread_flag(TIF_32BIT); \
current->thread.map_base = DEFAULT_MAP_BASE32; \
current->thread.task_size = DEFAULT_TASK_SIZE32 \
@ -102,25 +102,3 @@ cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
}
#include "../../../fs/binfmt_elf.c"
/* Set up a separate execution domain for ELF32 binaries running
* on an ELF64 kernel */
static struct exec_domain parisc32_exec_domain = {
.name = "Linux/ELF32",
.pers_low = PER_LINUX32,
.pers_high = PER_LINUX32,
};
static int __init parisc32_exec_init(void)
{
/* steal the identity signal mappings from the default domain */
parisc32_exec_domain.signal_map = default_exec_domain.signal_map;
parisc32_exec_domain.signal_invmap = default_exec_domain.signal_invmap;
register_exec_domain(&parisc32_exec_domain);
return 0;
}
__initcall(parisc32_exec_init);

5
arch/parisc/kernel/signal.c
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@ -26,7 +26,6 @@
#include <linux/stddef.h>
#include <linux/compat.h>
#include <linux/elf.h>
#include <linux/personality.h>
#include <asm/ucontext.h>
#include <asm/rt_sigframe.h>
#include <asm/uaccess.h>
@ -433,13 +432,13 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
if (in_syscall) {
regs->gr[31] = haddr;
#ifdef __LP64__
if (personality(current->personality) == PER_LINUX)
if (!test_thread_flag(TIF_32BIT))
sigframe_size |= 1;
#endif
} else {
unsigned long psw = USER_PSW;
#ifdef __LP64__
if (personality(current->personality) == PER_LINUX)
if (!test_thread_flag(TIF_32BIT))
psw |= PSW_W;
#endif

4
include/asm-parisc/compat.h
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@ -5,7 +5,7 @@
*/
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/personality.h>
#include <linux/thread_info.h>
#define COMPAT_USER_HZ 100
@ -152,7 +152,7 @@ static __inline__ void __user *compat_alloc_user_space(long len)
static inline int __is_compat_task(struct task_struct *t)
{
return personality(t->personality) == PER_LINUX32;
return test_ti_thread_flag(t->thread_info, TIF_32BIT);
}
static inline int is_compat_task(void)

2
include/asm-parisc/processor.h
View File

@ -278,7 +278,7 @@ on downward growing arches, it looks like this:
*/
#ifdef __LP64__
#define USER_WIDE_MODE (personality(current->personality) == PER_LINUX)
#define USER_WIDE_MODE (!test_thread_flag(TIF_32BIT))
#else
#define USER_WIDE_MODE 0
#endif