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support sys_get_thread_area api for mips #756

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support sys_get_thread_area api for mips #756

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9 changes: 9 additions & 0 deletions arch/mips/kernel/syscall.c
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Original file line number Diff line number Diff line change
Expand Up @@ -93,6 +93,15 @@ SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
return 0;
}

SYSCALL_DEFINE1(get_thread_area,unsigned long __user*,u_info)
{
struct thread_info *ti = task_thread_info(current);
if(copy_to_user(u_info,&(ti->tp_value),sizeof(ti->tp_value))){
return -EFAULT；
}
return 0;
}

static inline int mips_atomic_set(unsigned long addr, unsigned long new)
{
unsigned long old, tmp;
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1 change: 1 addition & 0 deletions arch/mips/kernel/syscalls/syscall_n32.tbl
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Expand Up @@ -374,3 +374,4 @@
433 n32 fspick sys_fspick
434 n32 pidfd_open sys_pidfd_open
435 n32 clone3 __sys_clone3
436 n32 get_thread_area sys_get_thread_area
1 change: 1 addition & 0 deletions arch/mips/kernel/syscalls/syscall_n64.tbl
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Expand Up @@ -350,3 +350,4 @@
433 n64 fspick sys_fspick
434 n64 pidfd_open sys_pidfd_open
435 n64 clone3 __sys_clone3
436 n64 get_thread_area sys_get_thread_area
2 changes: 2 additions & 0 deletions arch/mips/kernel/syscalls/syscall_o32.tbl
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Expand Up @@ -423,3 +423,5 @@
433 o32 fspick sys_fspick
434 o32 pidfd_open sys_pidfd_open
435 o32 clone3 __sys_clone3
436 o32 get_thread_area sys_get_thread_area