diff options
| author | Emilio G. Cota | 2017-07-19 02:46:52 +0200 |
|---|---|---|
| committer | Richard Henderson | 2017-10-24 22:53:41 +0200 |
| commit | c5a49c63fa26e8825ad101dfe86339ae4c216539 (patch) | |
| tree | c41e1a7064e88f65292a3b09684123f9f499617e /include/exec | |
| parent | tcg: Include CF_COUNT_MASK in CF_HASH_MASK (diff) | |
| download | qemu-c5a49c63fa26e8825ad101dfe86339ae4c216539.tar.gz qemu-c5a49c63fa26e8825ad101dfe86339ae4c216539.tar.xz qemu-c5a49c63fa26e8825ad101dfe86339ae4c216539.zip | |
tcg: convert tb->cflags reads to tb_cflags(tb)
Convert all existing readers of tb->cflags to tb_cflags, so that we
use atomic_read and therefore avoid undefined behaviour in C11.
Note that the remaining setters/getters of the field are protected
by tb_lock, and therefore do not need conversion.
Luckily all readers access the field via 'tb->cflags' (so no foo.cflags,
bar->cflags in the code base), which makes the conversion easily
scriptable:
FILES=$(git grep 'tb->cflags' target include/exec/gen-icount.h \
accel/tcg/translator.c | cut -f1 -d':' | sort | uniq)
perl -pi -e 's/([^.>])tb->cflags/$1tb_cflags(tb)/g' $FILES
perl -pi -e 's/([a-z->.]*)(->|\.)tb->cflags/tb_cflags($1$2tb)/g' $FILES
Then manually fixed the few errors that checkpatch reported.
Compile-tested for all targets.
Suggested-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/gen-icount.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h index 9b3cb14dfa..48b566c1c9 100644 --- a/include/exec/gen-icount.h +++ b/include/exec/gen-icount.h @@ -13,7 +13,7 @@ static inline void gen_tb_start(TranslationBlock *tb) TCGv_i32 count, imm; exitreq_label = gen_new_label(); - if (tb->cflags & CF_USE_ICOUNT) { + if (tb_cflags(tb) & CF_USE_ICOUNT) { count = tcg_temp_local_new_i32(); } else { count = tcg_temp_new_i32(); @@ -22,7 +22,7 @@ static inline void gen_tb_start(TranslationBlock *tb) tcg_gen_ld_i32(count, tcg_ctx.tcg_env, -ENV_OFFSET + offsetof(CPUState, icount_decr.u32)); - if (tb->cflags & CF_USE_ICOUNT) { + if (tb_cflags(tb) & CF_USE_ICOUNT) { imm = tcg_temp_new_i32(); /* We emit a movi with a dummy immediate argument. Keep the insn index * of the movi so that we later (when we know the actual insn count) @@ -36,7 +36,7 @@ static inline void gen_tb_start(TranslationBlock *tb) tcg_gen_brcondi_i32(TCG_COND_LT, count, 0, exitreq_label); - if (tb->cflags & CF_USE_ICOUNT) { + if (tb_cflags(tb) & CF_USE_ICOUNT) { tcg_gen_st16_i32(count, tcg_ctx.tcg_env, -ENV_OFFSET + offsetof(CPUState, icount_decr.u16.low)); } @@ -46,7 +46,7 @@ static inline void gen_tb_start(TranslationBlock *tb) static inline void gen_tb_end(TranslationBlock *tb, int num_insns) { - if (tb->cflags & CF_USE_ICOUNT) { + if (tb_cflags(tb) & CF_USE_ICOUNT) { /* Update the num_insn immediate parameter now that we know * the actual insn count. */ tcg_set_insn_param(icount_start_insn_idx, 1, num_insns); |