x86: tls32 moved
This renames arch/x86/ia32/tls32.c to arch/x86/kernel/tls.c, which does nothing now but paves the way to consolidate this code for 32-bit too. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Родитель
12c3cbbb7e
Коммит
13abd0e504
|
@ -2,7 +2,7 @@
|
|||
# Makefile for the ia32 kernel emulation subsystem.
|
||||
#
|
||||
|
||||
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o tls32.o \
|
||||
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o \
|
||||
ia32_binfmt.o fpu32.o ptrace32.o
|
||||
|
||||
sysv-$(CONFIG_SYSVIPC) := ipc32.o
|
||||
|
|
|
@ -13,6 +13,7 @@ obj-y := process_64.o signal_64.o entry_64.o traps_64.o irq_64.o \
|
|||
pci-dma_64.o pci-nommu_64.o alternative.o hpet.o tsc_64.o bugs_64.o \
|
||||
i8253.o io_delay.o rtc.o
|
||||
|
||||
obj-$(CONFIG_IA32_EMULATION) += tls.o
|
||||
obj-$(CONFIG_STACKTRACE) += stacktrace.o
|
||||
obj-y += cpu/
|
||||
obj-y += acpi/
|
||||
|
|
|
@ -26,7 +26,7 @@ static int get_free_idx(void)
|
|||
|
||||
/*
|
||||
* Set a given TLS descriptor:
|
||||
* When you want addresses > 32bit use arch_prctl()
|
||||
* When you want addresses > 32bit use arch_prctl()
|
||||
*/
|
||||
int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
|
||||
{
|
||||
|
@ -76,9 +76,9 @@ int do_set_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
|
|||
}
|
||||
|
||||
asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
|
||||
{
|
||||
return do_set_thread_area(¤t->thread, u_info);
|
||||
}
|
||||
{
|
||||
return do_set_thread_area(¤t->thread, u_info);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
|
@ -88,7 +88,7 @@ asmlinkage long sys32_set_thread_area(struct user_desc __user *u_info)
|
|||
#define GET_LIMIT(desc) ( \
|
||||
((desc)->a & 0x0ffff) | \
|
||||
((desc)->b & 0xf0000) )
|
||||
|
||||
|
||||
#define GET_32BIT(desc) (((desc)->b >> 22) & 1)
|
||||
#define GET_CONTENTS(desc) (((desc)->b >> 10) & 3)
|
||||
#define GET_WRITABLE(desc) (((desc)->b >> 9) & 1)
|
||||
|
@ -130,7 +130,7 @@ int do_get_thread_area(struct thread_struct *t, struct user_desc __user *u_info)
|
|||
asmlinkage long sys32_get_thread_area(struct user_desc __user *u_info)
|
||||
{
|
||||
return do_get_thread_area(¤t->thread, u_info);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs)
|
||||
|
@ -139,17 +139,17 @@ int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs)
|
|||
struct user_desc info;
|
||||
struct user_desc __user *cp;
|
||||
int idx;
|
||||
|
||||
|
||||
cp = (void __user *)childregs->rsi;
|
||||
if (copy_from_user(&info, cp, sizeof(info)))
|
||||
return -EFAULT;
|
||||
if (LDT_empty(&info))
|
||||
return -EINVAL;
|
||||
|
||||
|
||||
idx = info.entry_number;
|
||||
if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX)
|
||||
return -EINVAL;
|
||||
|
||||
|
||||
desc = (struct n_desc_struct *)(p->thread.tls_array) + idx - GDT_ENTRY_TLS_MIN;
|
||||
desc->a = LDT_entry_a(&info);
|
||||
desc->b = LDT_entry_b(&info);
|
Загрузка…
Ссылка в новой задаче