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authorRichard Henderson <rth@twiddle.net>2016-09-22 15:17:10 -0700
committerRichard Henderson <rth@twiddle.net>2016-11-01 10:29:03 -0600
commit1ee73216f4ccd2f3b6eb818feb165b3cf5a1944c (patch)
treec4bf6e9433b8c0104e384233fa09a78346673709 /translate-all.c
parent9acbf7d8cad3d3af498e4e907fb1f5ab27a302e9 (diff)
downloadfocaccia-qemu-1ee73216f4ccd2f3b6eb818feb165b3cf5a1944c.tar.gz
focaccia-qemu-1ee73216f4ccd2f3b6eb818feb165b3cf5a1944c.zip
log: Add locking to large logging blocks
Reuse the existing locking provided by stdio to keep in_asm, cpu,
op, op_opt, op_ind, and out_asm as contiguous blocks.

While it isn't possible to interleave e.g. in_asm or op_opt logs
because of the TB lock protecting all code generation, it is
possible to interleave cpu logs, or to interleave a cpu dump with
an out_asm dump.

For mingw32, we appear to have no viable solution for this.  The locking
functions are not properly exported from the system runtime library.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'translate-all.c')
-rw-r--r--translate-all.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/translate-all.c b/translate-all.c
index e6a8b07363..3dd9214904 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -1355,10 +1355,12 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
 #ifdef DEBUG_DISAS
     if (qemu_loglevel_mask(CPU_LOG_TB_OUT_ASM) &&
         qemu_log_in_addr_range(tb->pc)) {
+        qemu_log_lock();
         qemu_log("OUT: [size=%d]\n", gen_code_size);
         log_disas(tb->tc_ptr, gen_code_size);
         qemu_log("\n");
         qemu_log_flush();
+        qemu_log_unlock();
     }
 #endif