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authorXavier ASUS <xavi92psx@gmail.com>2019-10-18 00:31:54 +0200
committerXavier ASUS <xavi92psx@gmail.com>2019-10-18 00:31:54 +0200
commit268a53de823a6750d6256ee1fb1e7707b4b45740 (patch)
tree42c1799a9a82b2f7d9790ee9fe181d72a7274751 /support/regression/tests/driverstruct.c
downloadsdcc-gas-268a53de823a6750d6256ee1fb1e7707b4b45740.tar.gz
sdcc-3.9.0 fork implementing GNU assembler syntax
This fork aims to provide better support for stm8-binutils
Diffstat (limited to 'support/regression/tests/driverstruct.c')
-rw-r--r--support/regression/tests/driverstruct.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/support/regression/tests/driverstruct.c b/support/regression/tests/driverstruct.c
new file mode 100644
index 0000000..8ed8fc8
--- /dev/null
+++ b/support/regression/tests/driverstruct.c
@@ -0,0 +1,51 @@
+/** Tests a few features of a driver struct - a struct with
+ many function pointers.
+*/
+#include <testfwk.h>
+#include <stddef.h>
+
+/* Set to one to show the bug */
+#if 1
+#define NAME(_a) _a
+#else
+#define NAME(_a)
+#endif
+
+typedef unsigned char uchar;
+
+/* Originally from UZIX - http://uzix.sourceforge.net/
+ */
+
+typedef struct s_devsw {
+ uchar minors; /* # of minor device numbers */
+ int (*dev_init)(uchar NAME(minor)) __reentrant;
+ int (*dev_open)(uchar NAME(minor)) __reentrant;
+ int (*dev_close)(uchar NAME(minor)) __reentrant;
+ int (*dev_read)(uchar NAME(minor), uchar NAME(w)) __reentrant;
+ int (*dev_write)(uchar NAME(minor), uchar NAME(w)) __reentrant;
+ int (*dev_ioctl)(uchar NAME(minor), int cmd, void *__data) __reentrant;
+} devsw_t;
+
+static int
+_init (uchar minor) __reentrant
+{
+ return minor;
+}
+
+static devsw_t _sillyDriver = {
+ 1,
+ _init,
+ NULL, NULL, NULL, NULL, NULL
+};
+
+int
+initProxy (devsw_t *pdrv)
+{
+ return (*pdrv->dev_init)(5);
+}
+
+void
+testDriverStruct (void)
+{
+ ASSERT (initProxy(&_sillyDriver) == 5);
+}