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author | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
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committer | Tony Lindgren <tony@atomide.com> | 2010-03-01 14:19:05 -0800 |
commit | d702d12167a2c05a346f49aac7a311d597762495 (patch) | |
tree | baae42c299cce34d6df24b5d01f8b1d0b481bd9a /arch/m68knommu/kernel | |
parent | 9418c65f9bd861d0f7e39aab9cfb3aa6f2275d11 (diff) | |
parent | ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (diff) | |
download | op-kernel-dev-d702d12167a2c05a346f49aac7a311d597762495.zip op-kernel-dev-d702d12167a2c05a346f49aac7a311d597762495.tar.gz |
Merge with mainline to remove plat-omap/Kconfig conflict
Conflicts:
arch/arm/plat-omap/Kconfig
Diffstat (limited to 'arch/m68knommu/kernel')
-rw-r--r-- | arch/m68knommu/kernel/process.c | 4 | ||||
-rw-r--r-- | arch/m68knommu/kernel/ptrace.c | 5 | ||||
-rw-r--r-- | arch/m68knommu/kernel/sys_m68k.c | 36 | ||||
-rw-r--r-- | arch/m68knommu/kernel/syscalltable.S | 4 |
4 files changed, 49 insertions, 0 deletions
diff --git a/arch/m68knommu/kernel/process.c b/arch/m68knommu/kernel/process.c index 5c9ecd4..959cb24 100644 --- a/arch/m68knommu/kernel/process.c +++ b/arch/m68knommu/kernel/process.c @@ -221,6 +221,10 @@ int copy_thread(unsigned long clone_flags, p->thread.usp = usp; p->thread.ksp = (unsigned long)childstack; + + if (clone_flags & CLONE_SETTLS) + task_thread_info(p)->tp_value = regs->d5; + /* * Must save the current SFC/DFC value, NOT the value when * the parent was last descheduled - RGH 10-08-96 diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c index 4d38289..85ed2f9 100644 --- a/arch/m68knommu/kernel/ptrace.c +++ b/arch/m68knommu/kernel/ptrace.c @@ -319,6 +319,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) } #endif + case PTRACE_GET_THREAD_AREA: + ret = put_user(task_thread_info(child)->tp_value, + (unsigned long __user *)data); + break; + default: ret = -EIO; break; diff --git a/arch/m68knommu/kernel/sys_m68k.c b/arch/m68knommu/kernel/sys_m68k.c index b67cbc7..923dd4a 100644 --- a/arch/m68knommu/kernel/sys_m68k.c +++ b/arch/m68knommu/kernel/sys_m68k.c @@ -190,3 +190,39 @@ int kernel_execve(const char *filename, char *const argv[], char *const envp[]) : "d" (__a), "d" (__b), "d" (__c)); return __res; } + +asmlinkage unsigned long sys_get_thread_area(void) +{ + return current_thread_info()->tp_value; +} + +asmlinkage int sys_set_thread_area(unsigned long tp) +{ + current_thread_info()->tp_value = tp; + return 0; +} + +/* This syscall gets its arguments in A0 (mem), D2 (oldval) and + D1 (newval). */ +asmlinkage int +sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, + unsigned long __user * mem) +{ + struct mm_struct *mm = current->mm; + unsigned long mem_value; + + down_read(&mm->mmap_sem); + + mem_value = *mem; + if (mem_value == oldval) + *mem = newval; + + up_read(&mm->mmap_sem); + return mem_value; +} + +asmlinkage int sys_atomic_barrier(void) +{ + /* no code needed for uniprocs */ + return 0; +} diff --git a/arch/m68knommu/kernel/syscalltable.S b/arch/m68knommu/kernel/syscalltable.S index 486837e..56dd01d 100644 --- a/arch/m68knommu/kernel/syscalltable.S +++ b/arch/m68knommu/kernel/syscalltable.S @@ -351,6 +351,10 @@ ENTRY(sys_call_table) .long sys_pwritev /* 330 */ .long sys_rt_tgsigqueueinfo .long sys_perf_event_open + .long sys_get_thread_area + .long sys_set_thread_area + .long sys_atomic_cmpxchg_32 /* 335 */ + .long sys_atomic_barrier .rept NR_syscalls-(.-sys_call_table)/4 .long sys_ni_syscall |