Add new command line option -singlestep for tcg single stepping.

This replaces a compile time option for some targets and adds
this feature to targets which did not have a compile time option.

Add monitor command to enable or disable single step mode.

Modify monitor command "info status" to display single step mode.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7004 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 4 insertions, 0 deletions

diff --git a/vl.c b/vl.c
index b294380a4f..4bd173f689 100644
--- a/vl.c
+++ b/vl.c
@@ -236,6 +236,7 @@ int win2k_install_hack = 0;
 int rtc_td_hack = 0;
 #endif
 int usb_enabled = 0;
+int singlestep = 0;
 int smp_cpus = 1;
 const char *vnc_display;
 int acpi_enabled = 1;
@@ -4660,6 +4661,9 @@ int main(int argc, char **argv, char **envp)
             case QEMU_OPTION_bios:
                 bios_name = optarg;
                 break;
+            case QEMU_OPTION_singlestep:
+                singlestep = 1;
+                break;
             case QEMU_OPTION_S:
                 autostart = 0;
                 break;