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| author | Leon Alrae <leon.alrae@imgtec.com> | 2015-01-26 15:53:16 +0000 |
|---|---|---|
| committer | Leon Alrae <leon.alrae@imgtec.com> | 2015-02-13 14:11:24 +0000 |
| commit | fe2372910a09034591fd2cfc2d70cca43fccaa95 (patch) | |
| tree | db43f00067a432b2bca993ecb3f2b80ba89e5efa /target-mips | |
| parent | 196a7958c65778d05a491309377a65c58f643a1c (diff) | |
| download | qemu-fe2372910a09034591fd2cfc2d70cca43fccaa95.zip qemu-fe2372910a09034591fd2cfc2d70cca43fccaa95.tar.gz qemu-fe2372910a09034591fd2cfc2d70cca43fccaa95.tar.bz2 | |
target-mips: fix detection of the end of the page during translation
The test is supposed to terminate TB if the end of the page is reached.
However, with current implementation it may never succeed for microMIPS or
mips16.
Reported-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com>
Reviewed-by: Maciej W. Rozycki <macro@linux-mips.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-mips')
| -rw-r--r-- | target-mips/translate.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 881e7fb..a24863c 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -19095,6 +19095,7 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb, CPUMIPSState *env = &cpu->env; DisasContext ctx; target_ulong pc_start; + target_ulong next_page_start; CPUBreakpoint *bp; int j, lj = -1; int num_insns; @@ -19106,6 +19107,7 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb, qemu_log("search pc %d\n", search_pc); pc_start = tb->pc; + next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; ctx.pc = pc_start; ctx.saved_pc = -1; ctx.singlestep_enabled = cs->singlestep_enabled; @@ -19204,8 +19206,9 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb, break; } - if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) + if (ctx.pc >= next_page_start) { break; + } if (tcg_op_buf_full()) { break; |