include/exec/plugin-gen.h

   1 /*
   2  * Copyright (C) 2017, Emilio G. Cota <cota@braap.org>
   3  *
   4  * License: GNU GPL, version 2 or later.
   5  *   See the COPYING file in the top-level directory.
   6  *
   7  * plugin-gen.h - TCG-dependent definitions for generating plugin code
   8  *
   9  * This header should be included only from plugin.c and C files that emit
  10  * TCG code.
  11  */
  12 #ifndef QEMU_PLUGIN_GEN_H
  13 #define QEMU_PLUGIN_GEN_H
  14
  15 #include "qemu/plugin.h"
  16 #include "tcg/tcg.h"
  17
  18 struct DisasContextBase;
  19
  20 #ifdef CONFIG_PLUGIN
  21
  22 bool plugin_gen_tb_start(CPUState *cpu, const TranslationBlock *tb);
  23 void plugin_gen_tb_end(CPUState *cpu);
  24 void plugin_gen_insn_start(CPUState *cpu, const struct DisasContextBase *db);
  25 void plugin_gen_insn_end(void);
  26
  27 void plugin_gen_disable_mem_helpers(void);
  28 void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info);
  29
  30 static inline void plugin_insn_append(const void *from, size_t size)
  31 {
  32     struct qemu_plugin_insn *insn = tcg_ctx->plugin_insn;
  33
  34     if (insn == NULL) {
  35         return;
  36     }
  37
  38     insn->data = g_byte_array_append(insn->data, from, size);
  39 }
  40
  41 #else /* !CONFIG_PLUGIN */
  42
  43 static inline
  44 bool plugin_gen_tb_start(CPUState *cpu, const TranslationBlock *tb)
  45 {
  46     return false;
  47 }
  48
  49 static inline
  50 void plugin_gen_insn_start(CPUState *cpu, const struct DisasContextBase *db)
  51 { }
  52
  53 static inline void plugin_gen_insn_end(void)
  54 { }
  55
  56 static inline void plugin_gen_tb_end(CPUState *cpu)
  57 { }
  58
  59 static inline void plugin_gen_disable_mem_helpers(void)
  60 { }
  61
  62 static inline void plugin_gen_empty_mem_callback(TCGv addr, uint32_t info)
  63 { }
  64
  65 static inline void plugin_insn_append(const void *from, size_t size)
  66 { }
  67
  68 #endif /* CONFIG_PLUGIN */
  69
  70 #endif /* QEMU_PLUGIN_GEN_H */
  71