forked from Minki/linux
sh: switch to copy_thread_tls()
Use the copy_thread_tls() calling convention which passes tls through a register. This is required so we can remove the copy_thread{_tls}() split and remove the HAVE_COPY_THREAD_TLS macro. Cc: Rich Felker <dalias@libc.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: linux-sh@vger.kernel.org Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Rich Felker <dalias@libc.org>
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@ -29,6 +29,7 @@ config SUPERH
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select HAVE_ARCH_AUDITSYSCALL
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select HAVE_ARCH_KGDB
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select HAVE_ARCH_TRACEHOOK
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select HAVE_COPY_THREAD_TLS
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select HAVE_DEBUG_BUGVERBOSE
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select HAVE_DEBUG_KMEMLEAK
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select HAVE_DYNAMIC_FTRACE
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@ -111,8 +111,8 @@ EXPORT_SYMBOL(dump_fpu);
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asmlinkage void ret_from_fork(void);
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asmlinkage void ret_from_kernel_thread(void);
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int copy_thread(unsigned long clone_flags, unsigned long usp,
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unsigned long arg, struct task_struct *p)
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int copy_thread_tls(unsigned long clone_flags, unsigned long usp,
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unsigned long arg, struct task_struct *p, unsigned long tls)
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{
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struct thread_info *ti = task_thread_info(p);
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struct pt_regs *childregs;
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@ -154,7 +154,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
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ti->addr_limit = USER_DS;
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if (clone_flags & CLONE_SETTLS)
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childregs->gbr = childregs->regs[0];
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childregs->gbr = tls;
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childregs->regs[0] = 0; /* Set return value for child */
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p->thread.pc = (unsigned long) ret_from_fork;
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