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tcg: Make DisasContextBase.tb const

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There is nothing within the translators that ought to be
changing the TranslationBlock data, so make it const.

This does not actually use the read-only copy of the
data structure that exists within the rx region.

Reviewed-by: Joelle van Dyne <j@getutm.app>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-10-29 09:49:05 -07:00
parent 1acbad0f27
commit d997143533
6 changed files with 8 additions and 8 deletions
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4
include/exec/gen-icount.h
View file

@ -32,7 +32,7 @@ static inline void gen_io_end(void)
tcg_temp_free_i32(tmp);
}
static inline void gen_tb_start(TranslationBlock *tb)
static inline void gen_tb_start(const TranslationBlock *tb)
{
TCGv_i32 count, imm;
@ -71,7 +71,7 @@ static inline void gen_tb_start(TranslationBlock *tb)
tcg_temp_free_i32(count);
}
static inline void gen_tb_end(TranslationBlock *tb, int num_insns)
static inline void gen_tb_end(const TranslationBlock *tb, int num_insns)
{
if (tb_cflags(tb) & CF_USE_ICOUNT) {
/* Update the num_insn immediate parameter now that we know

2
include/exec/translator.h
View file

@ -67,7 +67,7 @@ typedef enum DisasJumpType {
* Architecture-agnostic disassembly context.
*/
typedef struct DisasContextBase {
TranslationBlock *tb;
const TranslationBlock *tb;
target_ulong pc_first;
target_ulong pc_next;
DisasJumpType is_jmp;