diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-10 23:35:45 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:41 -1000 |
| commit | f309101c26b59641fc1aa8fb2a98a5441cdaea03 (patch) | |
| tree | 9c0509fddf84c84027cc9bf8292219c3dbe62c12 /tcg/aarch64 | |
| parent | 7ba6a512ae439c98c0c1f0f4348c079d90f9dd9d (diff) | |
| download | qemu-f309101c26b59641fc1aa8fb2a98a5441cdaea03.tar.gz | |
tcg: Clean up direct block chaining data fields
Briefly describe in a comment how direct block chaining is done. It
should help in understanding of the following data fields.
Rename some fields in TranslationBlock and TCGContext structures to
better reflect their purpose (dropping excessive 'tb_' prefix in
TranslationBlock but keeping it in TCGContext):
tb_next_offset => jmp_reset_offset
tb_jmp_offset => jmp_insn_offset
tb_next => jmp_target_addr
jmp_next => jmp_list_next
jmp_first => jmp_list_first
Avoid using a magic constant as an invalid offset which is used to
indicate that there's no n-th jump generated.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/aarch64')
| -rw-r--r-- | tcg/aarch64/tcg-target.inc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index 88183c830f..1447f7c216 100644 --- a/tcg/aarch64/tcg-target.inc.c +++ b/tcg/aarch64/tcg-target.inc.c @@ -1306,12 +1306,13 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, #ifndef USE_DIRECT_JUMP #error "USE_DIRECT_JUMP required for aarch64" #endif - tcg_debug_assert(s->tb_jmp_offset != NULL); /* consistency for USE_DIRECT_JUMP */ - s->tb_jmp_offset[a0] = tcg_current_code_size(s); + /* consistency for USE_DIRECT_JUMP */ + tcg_debug_assert(s->tb_jmp_insn_offset != NULL); + s->tb_jmp_insn_offset[a0] = tcg_current_code_size(s); /* actual branch destination will be patched by aarch64_tb_set_jmp_target later, beware retranslation. */ tcg_out_goto_noaddr(s); - s->tb_next_offset[a0] = tcg_current_code_size(s); + s->tb_jmp_reset_offset[a0] = tcg_current_code_size(s); break; case INDEX_op_br: |