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Fix printcmds.exp failure for wide strings tests.

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wchar_t type must be known to create wide strings.
As this type is predefined when current GDB language is C++,
switch to c++ for the wide strings tests.

Problem analysis and fix by Sergio.
This commit is contained in:
Philippe Waroquiers
2019-07-09 19:36:17 +02:00
parent 268a13a5a3
commit 0826779b99
2 changed files with 20 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
gdb/testsuite/ChangeLog
View File

@ -1,3 +1,9 @@
2019-07-09 Sergio Durigan Junior <sergiodj@redhat.com>
* gdb.base/printcmds.exp (test_printf_convenience_var): Set
language to "c++" before dealing with wchar_t. Remove DO_WSTRING
argument and update callers.
2019-07-09 Andrew Burgess <andrew.burgess@embecosm.com>
* gdb.arch/amd64-break-on-asm-line.S: New file.

29
gdb/testsuite/gdb.base/printcmds.exp
View File

@ -935,11 +935,8 @@ proc test_repeat_bytes {} {
# Test printf of convenience variables.
# These tests can be done with or without a running inferior.
# PREFIX ensures uniqueness of test names.
# DO_WSTRING 1 tells to test printf of wide strings. Wide strings tests
# must be skipped (DO_WSTRING 0) if the wchar_t type is not yet known by
# GDB, as this type is needed to create wide strings.
proc test_printf_convenience_var {prefix do_wstring} {
proc test_printf_convenience_var {prefix} {
with_test_prefix "conv var: $prefix" {
gdb_test_no_output "set var \$cstr = \"abcde\"" "set \$cstr"
@ -958,12 +955,16 @@ proc test_printf_convenience_var {prefix do_wstring} {
gdb_test_no_output "set language auto" "set language auto"
gdb_test "printf \"astr val = %s\\n\", \$astr" "astr val = fghij" \
"printf \$astr, auto language"
if {$do_wstring} {
gdb_test_no_output "set var \$wstr = L\"facile\"" \
"set \$wstr"
gdb_test "printf \"wstr val = %ls\\n\", \$wstr" \
"wstr val = facile" "printf \$wstr"
}
# Wide strings can only be created when wchar_t type is known.
# Switch to c++ for the wide strings tests, as wchar_t is predefined
# when current language is c++.
# See above "set language ada" about why we use gdb_test.
gdb_test "set language c++" ".*" "set language c++"
gdb_test_no_output "set var \$wstr = L\"facile\"" \
"set \$wstr"
gdb_test "printf \"wstr val = %ls\\n\", \$wstr" \
"wstr val = facile" "printf \$wstr"
gdb_test_no_output "set language auto" "set language auto, wstring"
}
}
@ -985,9 +986,7 @@ gdb_test "print \$cvar = \"abc\"" " = \"abc\""
gdb_test "print sizeof (\$cvar)" " = 4"
# Similarly, printf of a string convenience var should work without a target.
# At this point, we cannot create a wide string convenience var, as the
# wchar_t type is not yet known, so skip the wide string tests.
test_printf_convenience_var "no target" 0
test_printf_convenience_var "no target"
# GDB used to complete the explicit location options even when
# printing expressions.
@ -1019,11 +1018,11 @@ if ![runto_main] then {
}
# With a running target, printf convenience vars should of course work.
test_printf_convenience_var "with target" 1
test_printf_convenience_var "with target"
# It should also work when inferior function calls are forbidden.
gdb_test_no_output "set may-call-functions off"
test_printf_convenience_var "with target, may-call-functions off" 1
test_printf_convenience_var "with target, may-call-functions off"
gdb_test_no_output "set may-call-functions on"
test_integer_literals_accepted