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drivers: don't try to access the sr_driver_list section with no driver compiled. 

This closes bug #820.
This commit is contained in:
Aurelien Jacobs 2016-08-15 01:28:55 +02:00
parent 5eb4ba29d0
commit bf85ea2110
2 changed files with 6 additions and 4 deletions
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2
configure.ac
View File

@ -211,7 +211,7 @@ m4_define([_SR_DRIVER], [
sr_driver_summary_append "$2" "$sr_hw_info"
AM_CONDITIONAL([$3], [test "x[$]$3" = xyes])
AM_COND_IF([$3], [AC_DEFINE([HAVE_$3], [1], [Whether to support $1 device.])])
AM_COND_IF([$3], [AC_DEFINE([HAVE_$3], [1], [Whether to support $1 device.]) AC_DEFINE([HAVE_DRIVERS], [1], [Whether at least one driver is enabled.])])
])
## SR_DRIVER(Device name, driver-name, [dependencies...])

8
src/drivers.c
View File

@ -18,6 +18,7 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <glib.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
@ -44,13 +45,14 @@ extern struct sr_dev_driver *__stop_sr_driver_list;
*/
SR_API void sr_drivers_init(struct sr_context *ctx)
{
struct sr_dev_driver **drivers;
GArray *array;
array = g_array_new(TRUE, FALSE, sizeof(struct sr_dev_driver *));
for (drivers = &__start_sr_driver_list; drivers < &__stop_sr_driver_list;
drivers++)
#ifdef HAVE_DRIVERS
for (struct sr_dev_driver **drivers = &__start_sr_driver_list;
drivers < &__stop_sr_driver_list; drivers++)
g_array_append_val(array, *drivers);
#endif
ctx->driver_list = (struct sr_dev_driver **)array->data;
g_array_free(array, FALSE);
}