07a6ecf48f
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>
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
/*
|
|
* PowerPC specific CPU ABI and functions for linux-user
|
|
*
|
|
* Copyright (c) 2003-2007 Jocelyn Mayer
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef PPC_TARGET_CPU_H
|
|
#define PPC_TARGET_CPU_H
|
|
|
|
static inline void cpu_clone_regs_child(CPUPPCState *env, target_ulong newsp,
|
|
unsigned flags)
|
|
{
|
|
if (newsp) {
|
|
env->gpr[1] = newsp;
|
|
}
|
|
env->gpr[3] = 0;
|
|
}
|
|
|
|
static inline void cpu_clone_regs_parent(CPUPPCState *env, unsigned flags)
|
|
{
|
|
}
|
|
|
|
static inline void cpu_set_tls(CPUPPCState *env, target_ulong newtls)
|
|
{
|
|
#if defined(TARGET_PPC64)
|
|
/* The kernel checks TIF_32BIT here; we don't support loading 32-bit
|
|
binaries on PPC64 yet. */
|
|
env->gpr[13] = newtls;
|
|
#else
|
|
env->gpr[2] = newtls;
|
|
#endif
|
|
}
|
|
|
|
#ifndef EF_PPC64_ABI
|
|
#define EF_PPC64_ABI 0x3
|
|
#endif
|
|
|
|
static inline uint32_t get_ppc64_abi(struct image_info *infop)
|
|
{
|
|
return infop->elf_flags & EF_PPC64_ABI;
|
|
}
|
|
|
|
static inline abi_ulong get_sp_from_cpustate(CPUPPCState *state)
|
|
{
|
|
return state->gpr[1];
|
|
}
|
|
#endif
|