path: root/cpu-exec.c
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authorPeter Maydell <peter.maydell@linaro.org>2013-04-11 21:21:46 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2013-04-12 14:33:21 +0200
commitc30d1aea1478cd55e8cfdf866afa39cd00bb4ea1 (patch)
tree2b17a34b523557d86111110a1390ce7c259ded65 /cpu-exec.c
parente03ba136377ff0038276ba493473127338c68ebc (diff)
cpu-exec: Allow "-d exec" in non-debug builds (drop CONFIG_DEBUG_EXEC)
The CONFIG_DEBUG_EXEC define compiles out a single qemu_log_mask() call, which is a pretty trivial cost even for something in the main cpu_exec() loop. Having this be conditionally defined means that '-d exec' on a non-debug build will silently do nothing. Drop the define and the configure machinery that sets it, in favour of just always allowing this log option to be enabled at runtime. As a concession to the mainloopiness, we use qemu_loglevel_mask()+qemu_log() rather than qemu_log_mask() to avoid the function call overhead. Note that DEBUG_DISAS is always defined, so removing the '|| defined(CONFIG_DEBUG_EXEC)' from those conditionals makes no behavioural change for that logging. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'cpu-exec.c')
1 files changed, 6 insertions, 9 deletions
diff --git a/cpu-exec.c b/cpu-exec.c
index e74e55656a..235ddeed78 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -23,8 +23,6 @@
#include "qemu/atomic.h"
#include "sysemu/qtest.h"
bool qemu_cpu_has_work(CPUState *cpu)
return cpu_has_work(cpu);
@@ -567,7 +565,7 @@ int cpu_exec(CPUArchState *env)
env->exception_index = EXCP_INTERRUPT;
-#if defined(DEBUG_DISAS) || defined(CONFIG_DEBUG_EXEC)
+#if defined(DEBUG_DISAS)
if (qemu_loglevel_mask(CPU_LOG_TB_CPU)) {
/* restore flags in standard format */
#if defined(TARGET_I386)
@@ -582,7 +580,7 @@ int cpu_exec(CPUArchState *env)
log_cpu_state(env, 0);
+#endif /* DEBUG_DISAS */
tb = tb_find_fast(env);
/* Note: we do it here to avoid a gcc bug on Mac OS X when
@@ -594,11 +592,10 @@ int cpu_exec(CPUArchState *env)
next_tb = 0;
tcg_ctx.tb_ctx.tb_invalidated_flag = 0;
- qemu_log_mask(CPU_LOG_EXEC, "Trace %p [" TARGET_FMT_lx "] %s\n",
- tb->tc_ptr, tb->pc,
- lookup_symbol(tb->pc));
+ if (qemu_loglevel_mask(CPU_LOG_EXEC)) {
+ qemu_log("Trace %p [" TARGET_FMT_lx "] %s\n",
+ tb->tc_ptr, tb->pc, lookup_symbol(tb->pc));
+ }
/* see if we can patch the calling TB. When the TB
spans two pages, we cannot safely do a direct
jump. */