Commit 07a6ecf4 authored Nov 06, 2019 by Richard Henderson Committed by Laurent Vivier Nov 06, 2019

linux-user: Introduce cpu_clone_regs_parent



We will need a target-specific hook for adjusting registers
in the parent during clone.  Add an empty inline function for
each target, and invoke it from the proper places.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191106113318.10226-11-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

parent 608999d1

linux-user/aarch64/target_cpu.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -28,6 +28,10 @@ static inline void cpu_clone_regs_child(CPUARMState *env, target_ulong newsp,
		env->xregs[0] = 0;
		}

		static inline void cpu_clone_regs_parent(CPUARMState *env, unsigned flags)
		{
		}

		static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
		{
		/* Note that AArch64 Linux keeps the TLS pointer in TPIDR; this is

linux-user/alpha/target_cpu.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -29,6 +29,10 @@ static inline void cpu_clone_regs_child(CPUAlphaState *env, target_ulong newsp,
		env->ir[IR_A3] = 0;
		}

		static inline void cpu_clone_regs_parent(CPUAlphaState *env, unsigned flags)
		{
		}

		static inline void cpu_set_tls(CPUAlphaState *env, target_ulong newtls)
		{
		env->unique = newtls;

linux-user/arm/target_cpu.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,10 @@ static inline void cpu_clone_regs_child(CPUARMState *env, target_ulong newsp,
		env->regs[0] = 0;
		}

		static inline void cpu_clone_regs_parent(CPUARMState *env, unsigned flags)
		{
		}

		static inline void cpu_set_tls(CPUARMState *env, target_ulong newtls)
		{
		if (access_secure_reg(env)) {

linux-user/cris/target_cpu.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -29,6 +29,10 @@ static inline void cpu_clone_regs_child(CPUCRISState *env, target_ulong newsp,
		env->regs[10] = 0;
		}

		static inline void cpu_clone_regs_parent(CPUCRISState *env, unsigned flags)
		{
		}

		static inline void cpu_set_tls(CPUCRISState *env, target_ulong newtls)
		{
		env->pregs[PR_PID] = (env->pregs[PR_PID] & 0xff) \| newtls;

linux-user/hppa/target_cpu.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,10 @@ static inline void cpu_clone_regs_child(CPUHPPAState *env, target_ulong newsp,
		env->iaoq_b = env->gr[31] + 4;
		}

		static inline void cpu_clone_regs_parent(CPUHPPAState *env, unsigned flags)
		{
		}

		static inline void cpu_set_tls(CPUHPPAState *env, target_ulong newtls)
		{
		env->cr[27] = newtls;