b21af662c1
Use the pc coming from db->pc_first rather than the TB. Use the cached host_addr rather than re-computing for the first page. We still need a separate lookup for the second page because it won't be computed for DisasContextBase until the translator actually performs a read from the page. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/*
|
|
* Copyright (C) 2017, Emilio G. Cota <cota@braap.org>
|
|
*
|
|
* License: GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*
|
|
* plugin-gen.h - TCG-dependent definitions for generating plugin code
|
|
*
|
|
* This header should be included only from plugin.c and C files that emit
|
|
* TCG code.
|
|
*/
|
|
#ifndef QEMU_PLUGIN_GEN_H
|
|
#define QEMU_PLUGIN_GEN_H
|
|
|
|
#include "qemu/plugin.h"
|
|
#include "tcg/tcg.h"
|
|
|
|
struct DisasContextBase;
|
|
|
|
#ifdef CONFIG_PLUGIN
|
|
|
|
bool plugin_gen_tb_start(CPUState *cpu, const struct DisasContextBase *db,
|
|
bool supress);
|
|
void plugin_gen_tb_end(CPUState *cpu);
|
|
void plugin_gen_insn_start(CPUState *cpu, const struct DisasContextBase *db);
|
|
void plugin_gen_insn_end(void);
|
|
|
|
void plugin_gen_disable_mem_helpers(void);
|
|
void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info);
|
|
|
|
static inline void plugin_insn_append(abi_ptr pc, const void *from, size_t size)
|
|
{
|
|
struct qemu_plugin_insn *insn = tcg_ctx->plugin_insn;
|
|
abi_ptr off;
|
|
|
|
if (insn == NULL) {
|
|
return;
|
|
}
|
|
off = pc - insn->vaddr;
|
|
if (off < insn->data->len) {
|
|
g_byte_array_set_size(insn->data, off);
|
|
} else if (off > insn->data->len) {
|
|
/* we have an unexpected gap */
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
insn->data = g_byte_array_append(insn->data, from, size);
|
|
}
|
|
|
|
#else /* !CONFIG_PLUGIN */
|
|
|
|
static inline bool
|
|
plugin_gen_tb_start(CPUState *cpu, const struct DisasContextBase *db, bool sup)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
static inline
|
|
void plugin_gen_insn_start(CPUState *cpu, const struct DisasContextBase *db)
|
|
{ }
|
|
|
|
static inline void plugin_gen_insn_end(void)
|
|
{ }
|
|
|
|
static inline void plugin_gen_tb_end(CPUState *cpu)
|
|
{ }
|
|
|
|
static inline void plugin_gen_disable_mem_helpers(void)
|
|
{ }
|
|
|
|
static inline void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info)
|
|
{ }
|
|
|
|
static inline void plugin_insn_append(abi_ptr pc, const void *from, size_t size)
|
|
{ }
|
|
|
|
#endif /* CONFIG_PLUGIN */
|
|
|
|
#endif /* QEMU_PLUGIN_GEN_H */
|
|
|