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608999d17c
We will need a target-specific hook for adjusting registers in the parent during clone. To avoid confusion, rename the one we have to make it clear it affects the child. At the same time, pass in the flags from the clone syscall. We will need them for correct behaviour for Sparc. 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: <20191106113318.10226-10-richard.henderson@linaro.org> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
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* PowerPC specific CPU ABI and functions for linux-user
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*
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* Copyright (c) 2003-2007 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef PPC_TARGET_CPU_H
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#define PPC_TARGET_CPU_H
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static inline void cpu_clone_regs_child(CPUPPCState *env, target_ulong newsp,
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unsigned flags)
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{
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if (newsp) {
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env->gpr[1] = newsp;
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}
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env->gpr[3] = 0;
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}
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static inline void cpu_set_tls(CPUPPCState *env, target_ulong newtls)
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{
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#if defined(TARGET_PPC64)
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/* The kernel checks TIF_32BIT here; we don't support loading 32-bit
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binaries on PPC64 yet. */
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env->gpr[13] = newtls;
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#else
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env->gpr[2] = newtls;
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#endif
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}
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#ifndef EF_PPC64_ABI
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#define EF_PPC64_ABI 0x3
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#endif
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static inline uint32_t get_ppc64_abi(struct image_info *infop)
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{
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return infop->elf_flags & EF_PPC64_ABI;
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}
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static inline abi_ulong get_sp_from_cpustate(CPUPPCState *state)
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{
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return state->gpr[1];
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}
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#endif
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