[virt-tools-list] [PATCH virt-viewer 4/4] windows: add debug-helper

[Christophe Fergeau]

On Tue, Jul 24, 2012 at 02:23:11PM +0200, Marc-André Lureau wrote:
> This is a simple program that will set some debug variable, and run
> gdb and wait until it finished. This makes it possible to debug
> "remote-viewer --spice-controller" easily, by setting the necessary
> variables and keeping the parent process running (the activex whatches
Typo:                                                           ^^^^^^^^
                                                                watches

Can you explain in the commit log how it will be launched, and with which
arguments it will get started?
Looks good otherwise

Christophe


> ---
>  src/Makefile.am    |    5 ++++
>  src/debug-helper.c |   70 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 75 insertions(+)
>  create mode 100644 src/debug-helper.c
> 
> diff --git a/src/Makefile.am b/src/Makefile.am
> index 8f9339c..a3c1b4d 100644
> --- a/src/Makefile.am
> +++ b/src/Makefile.am
> @@ -155,6 +155,11 @@ virt-viewer_rc.$(OBJEXT): $(VIRT_VIEWER_RES) $(ICONDIR)/virt-viewer.ico
>  		-i $< -o $@
>  LDADD += virt-viewer_rc.$(OBJEXT)
>  MAINTAINERCLEANFILES += virt-viewer_rc.$(OBJEXT)
> +
> +bin_PROGRAMS += debug-helper
> +debug_helper_SOURCES = debug-helper.c
> +debug_helper_LDFLAGS = $(GLIB2_LIBS) -Wl,--subsystem,windows
> +debug_helper_CFLAGS = $(GLIB2_CFLAGS)
>  endif
>  
>  -include $(top_srcdir)/git.mk
> diff --git a/src/debug-helper.c b/src/debug-helper.c
> new file mode 100644
> index 0000000..754f7cf
> --- /dev/null
> +++ b/src/debug-helper.c
> @@ -0,0 +1,70 @@
> +#include <windows.h>
> +#include <stdio.h>
> +#include <conio.h>
> +#include <process.h>
> +#include <glib.h>
> +
> +static gchar*
> +get_program_path(void)
> +{
> +    gchar *utf8_buf, *path = NULL;
> +    wchar_t buf[MAX_PATH+1];
> +
> +    if (GetModuleFileNameW(GetModuleHandle (NULL), buf, G_N_ELEMENTS (buf)) > 0) {
> +        utf8_buf = g_utf16_to_utf8 (buf, -1, NULL, NULL, NULL);
> +        path = g_path_get_dirname (utf8_buf);
> +        g_free (utf8_buf);
> +    }
> +
> +    return path;
> +}
> +
> +int
> +main(int argc, char *argv[])
> +{
> +    char pipe[2048];
> +    STARTUPINFO si = { 0, };
> +    PROCESS_INFORMATION pi = { 0, };
> +    gchar *program_path = get_program_path();
> +    gchar *command;
> +    int rv = 0;
> +
> +    argv[0] = "gdb -ex run --args";
> +    command = g_strjoinv(" ", argv);
> +
> +    snprintf(pipe, sizeof(pipe), "\\\\.\\pipe\\SpiceController-%lu", GetCurrentProcessId());
> +
> +    SetEnvironmentVariable("SPICE_DEBUG", "1");
> +    SetEnvironmentVariable("G_MESSAGES_DEBUG", "all");
> +    SetEnvironmentVariable("SPICE_XPI_NAMEDPIPE", pipe);
> +
> +    si.cb = sizeof(si);
> +    if (!CreateProcess(NULL,
> +                       command,
> +                       NULL,
> +                       NULL,
> +                       FALSE,
> +                       0,
> +                       NULL,
> +                       program_path,
> +                       &si,
> +                       &pi)) {
> +        printf("CreateProcess failed (%ld).\n", GetLastError());
> +        rv = 1;
> +        goto end;
> +    }
> +
> +    // Wait until child process exits
> +    WaitForSingleObject(pi.hProcess, INFINITE);
> +
> +    // Close process and thread handles
> +    CloseHandle(pi.hProcess);
> +    CloseHandle(pi.hThread);
> +
> +end:
> +    g_free(program_path);
> +    g_free(command);
> +
> +    exit(rv);
> +    return rv;
> +}
> -- 
> 1.7.10.4
> 
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