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authorTom Tromey <tom@tromey.com>2014-09-13 22:24:50 -0600
committerTom Tromey <tom@tromey.com>2016-05-24 10:05:59 -0600
commitddae946278bf4269370f7d945732485ad13469fa (patch)
tree61bb9e2d9e020af0914071e93cc39a3cd57a074f
parente2b7f516fc688975ea22ad3cf2066c6972454fdc (diff)
downloadbinutils-gdb-ddae946278bf4269370f7d945732485ad13469fa.tar.gz
Fix PR python/17386 - add __index__ method to gdb.Value
This patch fixes PR python/17386. The bug is that gdb.Value does not implement the Python __index__ method. This method is needed to convert a Python object to an index and is used by various operations in Python, such as indexing an array. The fix is to implement the nb_index method for gdb.Value. nb_index was added in Python 2.5. I don't have a good way to test Python 2.4, but I made an attempt to accomodate it. I chose to use valpy_long in all cases because this simplifies porting to Python 3, and because there didn't seem to be any harm. Built and regtested on x86-64 Fedora 23. 2016-05-24 Tom Tromey <tom@tromey.com> PR python/17386: * python/py-value.c (value_object_as_number): Add nb_inplace_floor_divide, nb_inplace_true_divide, nb_index. 2016-05-24 Tom Tromey <tom@tromey.com> PR python/17386: * gdb.python/py-value.exp (test_value_numeric_ops): Add tests that use value as an index.
-rw-r--r--gdb/ChangeLog6
-rw-r--r--gdb/python/py-value.c8
-rw-r--r--gdb/testsuite/ChangeLog6
-rw-r--r--gdb/testsuite/gdb.python/py-value.exp7
4 files changed, 26 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a38b98c0ba6..00e0ddbf348 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,11 @@
2016-05-24 Tom Tromey <tom@tromey.com>
+ PR python/17386:
+ * python/py-value.c (value_object_as_number): Add
+ nb_inplace_floor_divide, nb_inplace_true_divide, nb_index.
+
+2016-05-24 Tom Tromey <tom@tromey.com>
+
* python/py-value.c (value_object_as_number): Add
nb_inplace_divide for Python 2.
diff --git a/gdb/python/py-value.c b/gdb/python/py-value.c
index 268f6c8ad6b..7a2a235d7e7 100644
--- a/gdb/python/py-value.c
+++ b/gdb/python/py-value.c
@@ -1838,7 +1838,13 @@ static PyNumberMethods value_object_as_number = {
NULL, /* nb_inplace_xor */
NULL, /* nb_inplace_or */
NULL, /* nb_floor_divide */
- valpy_divide /* nb_true_divide */
+ valpy_divide, /* nb_true_divide */
+ NULL, /* nb_inplace_floor_divide */
+ NULL, /* nb_inplace_true_divide */
+#ifndef HAVE_LIBPYTHON_2_4
+ /* This was added in Python 2.5. */
+ valpy_long, /* nb_index */
+#endif /* HAVE_LIBPYTHON_2_4 */
};
static PyMappingMethods value_object_as_mapping = {
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 319c0f5c8ca..09b4c354622 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-24 Tom Tromey <tom@tromey.com>
+
+ PR python/17386:
+ * gdb.python/py-value.exp (test_value_numeric_ops): Add tests that
+ use value as an index.
+
2016-05-23 Tom Tromey <tom@tromey.com>
PR python/17981:
diff --git a/gdb/testsuite/gdb.python/py-value.exp b/gdb/testsuite/gdb.python/py-value.exp
index a9dbe97784a..57a9ba1f516 100644
--- a/gdb/testsuite/gdb.python/py-value.exp
+++ b/gdb/testsuite/gdb.python/py-value.exp
@@ -124,6 +124,13 @@ proc test_value_numeric_ops {} {
gdb_test "python print ('result = ' + str(b-2))" " = 0x3( <.*>)?" "subtract python integer from pointer value"
gdb_test "python print ('result = ' + str(b-a))" " = 3" "subtract two pointer values"
+ gdb_test "python print ('result = ' + 'result'\[gdb.Value(0)\])" \
+ "result = r" "use value as string index"
+ gdb_test "python print ('result = ' + str((1,2,3)\[gdb.Value(0)\]))" \
+ "result = 1" "use value as tuple index"
+ gdb_test "python print ('result = ' + str(\[1,2,3\]\[gdb.Value(0)\]))" \
+ "result = 1" "use value as array index"
+
# Test some invalid operations.
gdb_test_multiple "python print ('result = ' + str(i+'foo'))" "catch error in python type conversion" {