diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2018-05-11 15:41:29 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-05-11 15:41:29 +0100 |
| commit | c74e62ee3e2dc2955e07d004c71badecb68a84eb (patch) | |
| tree | d20da427e30c03e58e7ff560b29b012a6fb31d18 /target/xtensa/translate.c | |
| parent | 6d7cde809d915e14728eda0af1c0618eb5710a96 (diff) | |
| parent | 5b4f1d2db9fb0e24549054ee58c7a7d8f84ddd6e (diff) | |
| download | qemu-master.tar.gz | |
* Fix all next_page checks for overflow.
* Convert six targets to the translator loop.
# gpg: Signature made Wed 09 May 2018 18:20:43 BST
# gpg: using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/cota-target-pull-request: (28 commits)
target/riscv: convert to TranslatorOps
target/riscv: convert to DisasContextBase
target/riscv: convert to DisasJumpType
target/openrisc: convert to TranslatorOps
target/openrisc: convert to DisasContextBase
target/s390x: convert to TranslatorOps
target/s390x: convert to DisasContextBase
target/s390x: convert to DisasJumpType
target/mips: convert to TranslatorOps
target/mips: use *ctx for DisasContext
target/mips: convert to DisasContextBase
target/mips: convert to DisasJumpType
target/mips: use lookup_and_goto_ptr on BS_STOP
target/sparc: convert to TranslatorOps
target/sparc: convert to DisasContextBase
target/sparc: convert to DisasJumpType
target/sh4: convert to TranslatorOps
translator: merge max_insns into DisasContextBase
target/mips: avoid integer overflow in next_page PC check
target/s390x: avoid integer overflow in next_page PC check
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/xtensa/translate.c')
| -rw-r--r-- | target/xtensa/translate.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c index 4f6d03059f..aad496347d 100644 --- a/target/xtensa/translate.c +++ b/target/xtensa/translate.c @@ -1061,8 +1061,7 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) int insn_count = 0; int max_insns = tb_cflags(tb) & CF_COUNT_MASK; uint32_t pc_start = tb->pc; - uint32_t next_page_start = - (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; + uint32_t page_start = pc_start & TARGET_PAGE_MASK; if (max_insns == 0) { max_insns = CF_COUNT_MASK; @@ -1162,9 +1161,9 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) } } while (dc.is_jmp == DISAS_NEXT && insn_count < max_insns && - dc.pc < next_page_start && - dc.pc + xtensa_insn_len(env, &dc) <= next_page_start && - !tcg_op_buf_full()); + dc.pc - page_start < TARGET_PAGE_SIZE && + dc.pc - page_start + xtensa_insn_len(env, &dc) <= TARGET_PAGE_SIZE + && !tcg_op_buf_full()); done: reset_sar_tracker(&dc); if (dc.icount) { |