From: 陳韋任 <che...@iis.sinica.edu.tw>

  QEMU linux user-mode's default log file name is "/tmp/qemu.log". In order to
change the log file name, user need to modify the source code then recompile
QEMU. This patch allow user use "-D logfile" option to specify the log file
name.

Signed-off-by: Chen Wen-Ren <che...@iis.sinica.edu.tw>
Signed-off-by: Riku Voipio <riku.voi...@linaro.org>
---
 linux-user/main.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/linux-user/main.c b/linux-user/main.c
index 64d2208..14bf5f0 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -2945,6 +2945,11 @@ static void handle_arg_log(const char *arg)
     cpu_set_log(mask);
 }
 
+static void handle_arg_log_filename(const char *arg)
+{
+    cpu_set_log_filename(arg);
+}
+
 static void handle_arg_set_env(const char *arg)
 {
     char *r, *p, *token;
@@ -3125,6 +3130,8 @@ struct qemu_argument arg_table[] = {
 #endif
     {"d",          "QEMU_LOG",         true,  handle_arg_log,
      "options",    "activate log"},
+    {"D",          "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
+     "logfile",     "override default logfile location"},
     {"p",          "QEMU_PAGESIZE",    true,  handle_arg_pagesize,
      "pagesize",   "set the host page size to 'pagesize'"},
     {"singlestep", "QEMU_SINGLESTEP",  false, handle_arg_singlestep,
-- 
1.7.5.4


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