qemu/include/exec/cpu_ldst_useronly_template.h
Laurent Vivier 3e23de1523 linux-user: fix 32bit g2h()/h2g()
sparc32plus has 64bit long type but only 32bit virtual address space.

For instance, "apt-get upgrade" failed because of a mmap()/msync()
sequence.

mmap() returned 0xff252000 but msync() used g2h(0xffffffffff252000)
to find the host address. The "(target_ulong)" in g2h() doesn't fix the
address because it is 64bit long.

This patch introduces an "abi_ptr" that is set to uint32_t
if the virtual address space is addressed using 32bit in the linux-user
case. It stays set to target_ulong with softmmu case.

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180814171217.14680-1-laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[lv: added "%" in TARGET_ABI_FMT_ptr "%"PRIx64]
2018-08-17 13:56:33 +02:00

144 lines
3.8 KiB
C

/*
* User-only accessor function support
*
* Generate inline load/store functions for one data size.
*
* Generate a store function as well as signed and unsigned loads.
*
* Not used directly but included from cpu_ldst.h.
*
* Copyright (c) 2015 Linaro Limited
*
* 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/>.
*/
#if !defined(CODE_ACCESS)
#include "trace-root.h"
#endif
#include "trace/mem.h"
#if DATA_SIZE == 8
#define SUFFIX q
#define USUFFIX q
#define DATA_TYPE uint64_t
#define SHIFT 3
#elif DATA_SIZE == 4
#define SUFFIX l
#define USUFFIX l
#define DATA_TYPE uint32_t
#define SHIFT 2
#elif DATA_SIZE == 2
#define SUFFIX w
#define USUFFIX uw
#define DATA_TYPE uint16_t
#define DATA_STYPE int16_t
#define SHIFT 1
#elif DATA_SIZE == 1
#define SUFFIX b
#define USUFFIX ub
#define DATA_TYPE uint8_t
#define DATA_STYPE int8_t
#define SHIFT 0
#else
#error unsupported data size
#endif
#if DATA_SIZE == 8
#define RES_TYPE uint64_t
#else
#define RES_TYPE uint32_t
#endif
static inline RES_TYPE
glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr)
{
#if !defined(CODE_ACCESS)
trace_guest_mem_before_exec(
ENV_GET_CPU(env), ptr,
trace_mem_build_info(SHIFT, false, MO_TE, false));
#endif
return glue(glue(ld, USUFFIX), _p)(g2h(ptr));
}
static inline RES_TYPE
glue(glue(glue(cpu_ld, USUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
abi_ptr ptr,
uintptr_t retaddr)
{
RES_TYPE ret;
helper_retaddr = retaddr;
ret = glue(glue(cpu_ld, USUFFIX), MEMSUFFIX)(env, ptr);
helper_retaddr = 0;
return ret;
}
#if DATA_SIZE <= 2
static inline int
glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr)
{
#if !defined(CODE_ACCESS)
trace_guest_mem_before_exec(
ENV_GET_CPU(env), ptr,
trace_mem_build_info(SHIFT, true, MO_TE, false));
#endif
return glue(glue(lds, SUFFIX), _p)(g2h(ptr));
}
static inline int
glue(glue(glue(cpu_lds, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
abi_ptr ptr,
uintptr_t retaddr)
{
int ret;
helper_retaddr = retaddr;
ret = glue(glue(cpu_lds, SUFFIX), MEMSUFFIX)(env, ptr);
helper_retaddr = 0;
return ret;
}
#endif
#ifndef CODE_ACCESS
static inline void
glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(CPUArchState *env, abi_ptr ptr,
RES_TYPE v)
{
#if !defined(CODE_ACCESS)
trace_guest_mem_before_exec(
ENV_GET_CPU(env), ptr,
trace_mem_build_info(SHIFT, false, MO_TE, true));
#endif
glue(glue(st, SUFFIX), _p)(g2h(ptr), v);
}
static inline void
glue(glue(glue(cpu_st, SUFFIX), MEMSUFFIX), _ra)(CPUArchState *env,
abi_ptr ptr,
RES_TYPE v,
uintptr_t retaddr)
{
helper_retaddr = retaddr;
glue(glue(cpu_st, SUFFIX), MEMSUFFIX)(env, ptr, v);
helper_retaddr = 0;
}
#endif
#undef RES_TYPE
#undef DATA_TYPE
#undef DATA_STYPE
#undef SUFFIX
#undef USUFFIX
#undef DATA_SIZE
#undef SHIFT