From 2f41223f62de5d893bd6a4bd832293c2c3e80d91 Mon Sep 17 00:00:00 2001 From: Antoine Tremblay Date: Wed, 25 Feb 2015 11:00:01 -0500 Subject: [PATCH] Fix print of value type in a corner case of finish When doing finish in a function, if gdb fails to return a value, gdb also fails at printing the value type if this type is a struct. For example : (gdb) fin .... Value returned has type: . Cannot determine contents This patch fixes this by calling type_to_string to print the type so that we can support these types. This patch returns the following example output : (gdb) fin .... Value returned has type: struct test. Cannot determine contents Also, this patch modifies structs.exp to check that we return the correct type. gdb/ChangeLog: * gdb/infcmd.c (print_return_value): use type_to_string to print type. gdb/testsuite/ChangeLog: * gdb.base/structs.exp: Check for correct struct on finish. --- gdb/ChangeLog | 4 ++++ gdb/infcmd.c | 8 +++++++- gdb/testsuite/ChangeLog | 4 ++++ gdb/testsuite/gdb.base/structs.exp | 2 +- 4 files changed, 16 insertions(+), 2 deletions(-) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 2a2daddf7fd..5c4138ef757 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,7 @@ +2015-02-26 Antoine Tremblay + + * gdb/infcmd.c (print_return_value): use type_to_string to print type. + 2015-02-26 Jan Kratochvil * elfread.c (elf_read_minimal_symbols): Use bfd_alloc for diff --git a/gdb/infcmd.c b/gdb/infcmd.c index 9a1fb8d7130..3737b8f6f1c 100644 --- a/gdb/infcmd.c +++ b/gdb/infcmd.c @@ -1607,10 +1607,16 @@ print_return_value (struct value *function, struct type *value_type) } else { + struct cleanup *oldchain; + char *type_name; + + type_name = type_to_string (value_type); + oldchain = make_cleanup (xfree, type_name); ui_out_text (uiout, "Value returned has type: "); - ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type)); + ui_out_field_string (uiout, "return-type", type_name); ui_out_text (uiout, "."); ui_out_text (uiout, " Cannot determine contents\n"); + do_cleanups (oldchain); } } diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index d06b5e5bc5a..b5780538253 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2015-02-26 Antoine Tremblay + + * gdb.base/structs.exp: Check for correct struct on finish. + 2015-02-26 Yao Qi * lib/dwarf.exp (function_range): Adjust pattern when $func_length diff --git a/gdb/testsuite/gdb.base/structs.exp b/gdb/testsuite/gdb.base/structs.exp index 927e3b8a877..5d94a41c5af 100644 --- a/gdb/testsuite/gdb.base/structs.exp +++ b/gdb/testsuite/gdb.base/structs.exp @@ -428,7 +428,7 @@ proc test_struct_returns { n } { -re "Value returned is .*${gdb_prompt} $" { pass "${test}" } - -re "Cannot determine contents.*${gdb_prompt} $" { + -re "Value returned has type: struct struct$n. Cannot determine contents.*${gdb_prompt} $" { # Expected bad value. For the moment this is ok. set finish_value_known 0 pass "${test}" -- 2.30.2