From bc2a507e6e90fc5766bd68d368441f5b511c2ef1 Mon Sep 17 00:00:00 2001 From: Kevin Buettner Date: Sat, 16 Feb 2019 18:07:51 -0700 Subject: [PATCH] Add tests for gdb.Value(bufobj, type) constructor gdb/testsuite/ChangeLog: * gdb.python/py-value.exp (test_value_from_buffer): New proc with call from main program. --- gdb/testsuite/ChangeLog | 5 +++ gdb/testsuite/gdb.python/py-value.exp | 45 +++++++++++++++++++++++++++ 2 files changed, 50 insertions(+) diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index eacb315017..cb51bcbe12 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2019-02-26 Kevin Buettner + + * gdb.python/py-value.exp (test_value_from_buffer): New proc with + call from main program. + 2019-02-23 Joel Brobecker * gdb.ada/mi_ref_changeable.exp: Update copyright year range. diff --git a/gdb/testsuite/gdb.python/py-value.exp b/gdb/testsuite/gdb.python/py-value.exp index 4f04aa9417..d42aff90f3 100644 --- a/gdb/testsuite/gdb.python/py-value.exp +++ b/gdb/testsuite/gdb.python/py-value.exp @@ -510,6 +510,50 @@ 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)" \ + "ValueError: 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" + gdb_test "python v=gdb.Value(b,'int'); print(v)" \ + "TypeError: type argument must be a gdb\.Type\..*" \ + "attempt to construct value with string as type" +} + # Build C version of executable. C++ is built later. if { [build_inferior "${binfile}" "c"] < 0 } { return -1 @@ -538,6 +582,7 @@ if ![runto_main] then { } test_value_in_inferior +test_value_from_buffer test_inferior_function_call test_value_after_death -- 2.34.1