gdb/testsuite/ChangeLog:
* gdb.python/py-value.exp (test_value_from_buffer): New
proc with
call from main program.
---
gdb/testsuite/gdb.python/py-value.exp | 42
+++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/gdb/testsuite/gdb.python/py-value.exp
b/gdb/testsuite/gdb.python/py-value.exp
index 4f04aa9417..ba7de2166e 100644
--- a/gdb/testsuite/gdb.python/py-value.exp
+++ b/gdb/testsuite/gdb.python/py-value.exp
@@ -510,6 +510,47 @@ proc test_float_conversion {} {
gdb_test "python print(float(gdb.Value(0)))" "0\\.0"
}
+proc test_value_from_buffer {} {
+ global gdb_prompt
+ global gdb_py_is_py3k
+
+ gdb_py_test_silent_cmd "python tp=gdb.lookup_type('int')" "look up
int type" 0
+ gdb_py_test_silent_cmd "python
size_a=gdb.parse_and_eval('sizeof(a)')" \
+ "find size of a" 0
+ gdb_py_test_silent_cmd "python
size_a0=gdb.parse_and_eval('sizeof(a\[0\])')" \
+ "find size of element of a" 0
+ gdb_py_test_silent_cmd "python addr=gdb.parse_and_eval('&a')" \
+ "find address of a" 0
+ gdb_py_test_silent_cmd "python
b=gdb.selected_inferior().read_memory(addr,size_a)" \
+ "read buffer from memory" 1
+ gdb_test "python v=gdb.Value(b,tp); print(v)" "1" \
+ "construct value from buffer"
+ gdb_test "python v=gdb.Value(b\[size_a0:\],tp); print(v)" "2" \
+ "convert 2nd elem of buffer to value"
+ gdb_test "python v=gdb.Value(b\[2*size_a0:\],tp); print(v)" "3" \
+ "convert 3rd elem of buffer to value"
+ gdb_test "python v=gdb.Value(b\[2*size_a0+1:\],tp); print(v)" \
+ "TypeError: Size of type is larger than that of buffer
object\..*" \
+ "attempt to convert smaller buffer than size of type"
+ gdb_py_test_silent_cmd "python atp=tp.array(2) ; print(atp)" \
+ "make array type" 0
+ gdb_py_test_silent_cmd "python va=gdb.Value(b,atp)" \
+ "construct array value from buffer" 0
+ gdb_test "python print(va)" "\\{1, 2, 3\\}" "print array value"
+ gdb_test "python print(va\[0\])" "1" "print first array element"
+ gdb_test "python print(va\[1\])" "2" "print second array element"
+ gdb_test "python print(va\[2\])" "3" "print third array element"
+ gdb_test "python print(va\[3\])" "gdb\.error: no such vector
element.*" \
+ "print out of bounds array element"
+ gdb_py_test_silent_cmd "python atpbig=tp.array(3)" "make bigger
array type" 0
+ gdb_test "python vabig=gdb.Value(b,atpbig)" \
+ "TypeError: Size of type is larger than that of buffer
object\..*" \
+ "attempt to construct large value with small buffer"
+ gdb_test "python v=gdb.Value(2048,tp)" \
+ "TypeError: Object must support the python buffer
protocol\..*" \
+ "attempt to construct value from buffer with non-buffer
object"
+}