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received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: iRFM+kjkO7zs0cXHPstQ6DSO+a5lhfSEo4CF6mNX6cmPaEK7vkl7uePAGQtrua6wfXy5pqWMrrTlflXHXIOqpg== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 081e2957-7ba0-40fe-dc28-08d567305617 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Jan 2018 15:52:44.2351 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM3PR08MB0168 X-IsSubscribed: yes X-SW-Source: 2018-01/txt/msg00596.txt.bz2 DQoNCj4gT24gMjkgSmFuIDIwMTgsIGF0IDExOjMwLCBQaGlsaXBwIFJ1ZG8g PHBydWRvQGxpbnV4LnZuZXQuaWJtLmNvbT4gd3JvdGU6DQo+IA0KPiBIaSBB bGFuLA0KPiANCj4gDQo+IE9uIE1vbiwgMjkgSmFuIDIwMTggMTE6MDE6MjUg KzAwMDANCj4gQWxhbiBIYXl3YXJkIDxBbGFuLkhheXdhcmRAYXJtLmNvbT4g d3JvdGU6DQo+IA0KPj4+IA0KPj4+IFdpdGggdGRlc2NfZmVhdHVyZXMsIHRk ZXNjX3R5cGVfd2l0aF9maWVsZHMgZXRjLiBiZWluZyBubyBsb25nZXIgb3Bh cXVlIGFuZA0KPj4+IHNvIG1hbnkgZnVuY3Rpb25zIHNoYXJlZCBtYW55IG9m IHRoZW0gY291bGQgYmUgbWFkZSBjbGFzcyBtZXRob2RzLiBIb3dldmVyDQo+ Pj4gdGhhdCBleGNlZWRzIHRoZSBzY29wZSBvZiB0aGlzIHBhdGNoIHNldCwg YnV0IHNob3VsZCBiZSBrZXB0IGluIG1pbmQgZm9yIHRoZQ0KPj4+IGZ1dHVy ZS4gIA0KPj4gDQo+PiBUaGUgIltQQVRDSF0gVXNlIHZpc2l0b3JzIGZvciBt YWtlX2dkYl90eXBl4oCdIHBhdGNoIHNob3VsZCB0YWtlIGNhcmUgb2YgYSBs YXJnZSBzZXQgb2YgdGhlbS4NCj4gDQo+IEkgd2FzIG1vcmUgdGhpbmtpbmcg b2YgZnVuY3Rpb25zIGxpa2UgdGRlc2NfYWRkXyogYW5kIHRkZXNjX2NyZWF0 ZV8qIChpbmNsdWRpbmcNCj4gdGRlc2NfY3JlYXRlX3JlZykuICBUaGV5IGFy ZSBub3QgY292ZXJlZCBieSB5b3VyIG1ha2VfZ2RiX3R5cGUgcGF0Y2guICBU aGUgd2F5DQo+IEkgc2VlIGl0IHRoZSBjaGFuZ2VzIG5lZWRlZCB0byBiZSBt YWRlIGFyZSBxdWl0ZSBzbWFsbC4gIFVuZm9ydHVuYXRlbHkgdGhleQ0KPiBy ZXF1aXJlIHRvIHJlZ2VuZXJhdGUgdGhlIGNmaWxlcyBtYWtpbmcgdGhlIHJl c3VsdGluZyBwYXRjaGVzIGxhcmdlIGFuZCBoYXJkDQo+IHRvIHJlYWQuDQo+ IA0KDQpPaywgaGFwcHkgdG8gbG9vayBhdCB0aGVzZSBpbiBhIGZvbGxvdyBv biBwYXRjaC4gU2hvdWxkIGJlIHNpbXBsZSBlbm91Z2ggdG8gd3JpdGUgdGhl IHBhdGNoLA0KanVzdCBhIGxpdHRsZSBtZXNzeSB0byByZXZpZXcuDQoNCkFs YW4uDQoNCg0K >From gdb-patches-return-145121-listarch-gdb-patches=sources.redhat.com@sourceware.org Mon Jan 29 15:52:10 2018 Return-Path: Delivered-To: listarch-gdb-patches@sources.redhat.com Received: (qmail 76578 invoked by alias); 29 Jan 2018 15:52:10 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 76565 invoked by uid 89); 29 Jan 2018 15:52:10 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-25.2 required=5.0 tests=AWL,BAYES_00,GIT_PATCH_0,GIT_PATCH_1,GIT_PATCH_2,GIT_PATCH_3,KAM_SHORT,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.2 spammy=mundane X-HELO: rock.gnat.com Received: from rock.gnat.com (HELO rock.gnat.com) (205.232.38.15) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Mon, 29 Jan 2018 15:52:03 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id 096B256346; Mon, 29 Jan 2018 10:52:02 -0500 (EST) Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 3rH22JyFMLto; Mon, 29 Jan 2018 10:52:01 -0500 (EST) Received: from joel.gnat.com (localhost.localdomain [127.0.0.1]) by rock.gnat.com (Postfix) with ESMTP id 7AD2F56336; Mon, 29 Jan 2018 10:52:01 -0500 (EST) Received: by joel.gnat.com (Postfix, from userid 1000) id 4813383307; Mon, 29 Jan 2018 19:51:57 +0400 (+04) Date: Mon, 29 Jan 2018 15:52:00 -0000 From: Joel Brobecker To: Pedro Alves Cc: gdb-patches@sourceware.org Subject: Re: [RFC] regresssion(internal-error) printing subprogram argument Message-ID: <20180129155157.zxxukd4sajrh3n7m@adacore.com> References: <00320239-44c8-b9c3-013b-b27c771e3401@redhat.com> <07a154ef-b6f5-ad86-1410-a73620de4b5b@redhat.com> <20180103043345.n6blge377ybsdx6q@adacore.com> <8df5cf8b-6e4e-e310-fcbd-2615334fe5b9@redhat.com> <832dbb30-7c2b-40ed-c03c-654bd1e2ea32@redhat.com> <20180117091332.z7bqu4aljudq33sw@adacore.com> <20180126035055.vbjtowj6q5ftbwiz@adacore.com> <21bfbb6a-bb10-812b-c34a-d367321e8d5e@redhat.com> <20180129103841.kdkomcjbuwiat5b4@adacore.com> <250976c6-6e7a-6a8e-b9f2-a57f5b92b965@redhat.com> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="imsq7falrhvdclfh" Content-Disposition: inline In-Reply-To: <250976c6-6e7a-6a8e-b9f2-a57f5b92b965@redhat.com> User-Agent: NeoMutt/20170113 (1.7.2) X-SW-Source: 2018-01/txt/msg00595.txt.bz2 --imsq7falrhvdclfh Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-length: 269 Hi Pedro, It's the end of my day, now, and I haven't had a chance to look at your comments just yet. I just wanted to post version 3 of the WIP patch, because it also includes a testcase in C. A bit on the artificial side, but I thought could be useful too. -- Joel --imsq7falrhvdclfh Content-Type: text/x-diff; charset=us-ascii Content-Disposition: attachment; filename="0001-WIPv3-dwarf2read.c-dwarf2_physname-do-not-call-gdb_d.patch" Content-length: 11531 >From 98f782214fcd6916f9163936b1fcf308edb8c522 Mon Sep 17 00:00:00 2001 From: Joel Brobecker Date: Thu, 25 Jan 2018 23:23:54 -0500 Subject: [PATCH] WIPv3: dwarf2read.c::dwarf2_physname: do not call gdb_demangle with Ada symbols --- gdb/dwarf2read.c | 2 +- gdb/testsuite/gdb.ada/notcplusplus.exp | 45 ++++++++++++++++++++++++++++ gdb/testsuite/gdb.ada/notcplusplus/foo.adb | 21 +++++++++++++ gdb/testsuite/gdb.ada/notcplusplus/pck.adb | 21 +++++++++++++ gdb/testsuite/gdb.ada/notcplusplus/pck.ads | 19 ++++++++++++ gdb/testsuite/gdb.ada/notcplusplus/ver.ads | 22 ++++++++++++++ gdb/testsuite/gdb.base/c-linkage-name.c | 44 ++++++++++++++++++++++++++++ gdb/testsuite/gdb.base/c-linkage-name.exp | 47 ++++++++++++++++++++++++++++++ 8 files changed, 220 insertions(+), 1 deletion(-) create mode 100644 gdb/testsuite/gdb.ada/notcplusplus.exp create mode 100644 gdb/testsuite/gdb.ada/notcplusplus/foo.adb create mode 100644 gdb/testsuite/gdb.ada/notcplusplus/pck.adb create mode 100644 gdb/testsuite/gdb.ada/notcplusplus/pck.ads create mode 100644 gdb/testsuite/gdb.ada/notcplusplus/ver.ads create mode 100644 gdb/testsuite/gdb.base/c-linkage-name.c create mode 100644 gdb/testsuite/gdb.base/c-linkage-name.exp diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 51d0f39..7febade 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -11150,7 +11150,7 @@ dwarf2_physname (const char *name, struct die_info *die, struct dwarf2_cu *cu) variant `long name(params)' does not have the proper inferior type. */ - if (cu->language == language_go) + if (cu->language == language_go || cu->language == language_ada) { /* This is a lie, but we already lie to the caller new_symbol. new_symbol assumes we return the mangled name. diff --git a/gdb/testsuite/gdb.ada/notcplusplus.exp b/gdb/testsuite/gdb.ada/notcplusplus.exp new file mode 100644 index 0000000..b2a24e8 --- /dev/null +++ b/gdb/testsuite/gdb.ada/notcplusplus.exp @@ -0,0 +1,45 @@ +# Copyright 2018 Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +load_lib "ada.exp" + +if { [skip_ada_tests] } { return -1 } + +standard_ada_testfile foo + +if {[gdb_compile_ada "${srcfile}" "${binfile}" executable {debug}] != ""} { + return -1 +} + +clean_restart ${testfile} + +gdb_test "print /x " \ + "= \\(a => 0x60287af\\)" \ + "print before loading symbols from ver.ads" + +# Force the partial symbosl from ver.ads to be expanded into full symbols. + +gdb_test \ + "list ver.ads:16" \ + [multi_line ".*" \ + "16\\s+package Ver is" \ + "17\\s+type Wrapper is record" \ + "18\\s+A : Integer;" \ + "19\\s+end record;" \ + "20\\s+u00045 : constant Wrapper := \\(A => 16#060287af#\\);"] + +gdb_test "print /x " \ + "= \\(a => 0x60287af\\)" \ + "print after loading symbols from ver.ads" diff --git a/gdb/testsuite/gdb.ada/notcplusplus/foo.adb b/gdb/testsuite/gdb.ada/notcplusplus/foo.adb new file mode 100644 index 0000000..89e42f9 --- /dev/null +++ b/gdb/testsuite/gdb.ada/notcplusplus/foo.adb @@ -0,0 +1,21 @@ +-- Copyright 2018 Free Software Foundation, Inc. +-- +-- This program is free software; you can redistribute it and/or modify +-- it under the terms of the GNU General Public License as published by +-- the Free Software Foundation; either version 3 of the License, or +-- (at your option) any later version. +-- +-- This program is distributed in the hope that it will be useful, +-- but WITHOUT ANY WARRANTY; without even the implied warranty of +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +-- GNU General Public License for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with this program. If not, see . + +with Pck; use Pck; +with Ver; use Ver; +procedure Foo is +begin + Do_Nothing (u00045'Address); +end Foo; diff --git a/gdb/testsuite/gdb.ada/notcplusplus/pck.adb b/gdb/testsuite/gdb.ada/notcplusplus/pck.adb new file mode 100644 index 0000000..dcfb306 --- /dev/null +++ b/gdb/testsuite/gdb.ada/notcplusplus/pck.adb @@ -0,0 +1,21 @@ +-- Copyright 2018 Free Software Foundation, Inc. +-- +-- This program is free software; you can redistribute it and/or modify +-- it under the terms of the GNU General Public License as published by +-- the Free Software Foundation; either version 3 of the License, or +-- (at your option) any later version. +-- +-- This program is distributed in the hope that it will be useful, +-- but WITHOUT ANY WARRANTY; without even the implied warranty of +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +-- GNU General Public License for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with this program. If not, see . + +package body Pck is + procedure Do_Nothing (A : System.Address) is + begin + null; + end Do_Nothing; +end Pck; diff --git a/gdb/testsuite/gdb.ada/notcplusplus/pck.ads b/gdb/testsuite/gdb.ada/notcplusplus/pck.ads new file mode 100644 index 0000000..33e369e --- /dev/null +++ b/gdb/testsuite/gdb.ada/notcplusplus/pck.ads @@ -0,0 +1,19 @@ +-- Copyright 2018 Free Software Foundation, Inc. +-- +-- This program is free software; you can redistribute it and/or modify +-- it under the terms of the GNU General Public License as published by +-- the Free Software Foundation; either version 3 of the License, or +-- (at your option) any later version. +-- +-- This program is distributed in the hope that it will be useful, +-- but WITHOUT ANY WARRANTY; without even the implied warranty of +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +-- GNU General Public License for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with this program. If not, see . + +with System; +package Pck is + procedure Do_Nothing (A : System.Address); +end Pck; diff --git a/gdb/testsuite/gdb.ada/notcplusplus/ver.ads b/gdb/testsuite/gdb.ada/notcplusplus/ver.ads new file mode 100644 index 0000000..8f264d0 --- /dev/null +++ b/gdb/testsuite/gdb.ada/notcplusplus/ver.ads @@ -0,0 +1,22 @@ +-- Copyright 2018 Free Software Foundation, Inc. +-- +-- This program is free software; you can redistribute it and/or modify +-- it under the terms of the GNU General Public License as published by +-- the Free Software Foundation; either version 3 of the License, or +-- (at your option) any later version. +-- +-- This program is distributed in the hope that it will be useful, +-- but WITHOUT ANY WARRANTY; without even the implied warranty of +-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +-- GNU General Public License for more details. +-- +-- You should have received a copy of the GNU General Public License +-- along with this program. If not, see . + +package Ver is + type Wrapper is record + A : Integer; + end record; + u00045 : constant Wrapper := (A => 16#060287af#); + pragma Export (C, u00045, "symada__cS"); +end Ver; diff --git a/gdb/testsuite/gdb.base/c-linkage-name.c b/gdb/testsuite/gdb.base/c-linkage-name.c new file mode 100644 index 0000000..925004c --- /dev/null +++ b/gdb/testsuite/gdb.base/c-linkage-name.c @@ -0,0 +1,44 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2018 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +struct wrapper +{ + int a; +}; + +/* Create a global variable whose name in the assembly code + (aka the "linkage name") is different from the name in + the source code. The goal is to create a symbol described + in DWARF using a DW_AT_linkage_name attribute, with a name + which follows the C++ mangling. + + In this particular case, we chose "symada__cS" which, if it were + demangled, would translate to "symada (char, signed)". */ +struct wrapper mundane asm ("symada__cS") = {0x060287af}; + +void +do_something (struct wrapper *w) +{ + w->a++; +} + +int +main (void) +{ + do_something (&mundane); + return 0; +} diff --git a/gdb/testsuite/gdb.base/c-linkage-name.exp b/gdb/testsuite/gdb.base/c-linkage-name.exp new file mode 100644 index 0000000..c80a530 --- /dev/null +++ b/gdb/testsuite/gdb.base/c-linkage-name.exp @@ -0,0 +1,47 @@ +# Copyright 2018 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# This file is part of the gdb testsuite. It is intended to test that +# gdb can correctly print arrays with indexes for each element of the +# array. + +standard_testfile .c + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { + untested "failed to compile" + return -1 +} + +clean_restart ${binfile} + +# Try to print MUNDANE, but using its linkage name. + +gdb_test "print symada__cS" \ + " = {a = 100829103}" \ + "print symada__cS before partial symtab expansion" + +# Force the symbols to be expanded for the unit that contains +# our symada__cS symbol by, e.g. inserting a breakpoint on one +# of the founction also provided by the same using. + +gdb_test "break main" \ + "Breakpoint $decimal at $hex: file .*$srcfile, line $decimal\\." + +# Try to print MUNDANE using its linkage name again, after partial +# symtab expansion. + +gdb_test "print symada__cS" \ + " = {a = 100829103}" \ + "print symada__cS after partial symtab expansion" -- 2.1.4 --imsq7falrhvdclfh--