From 6c4474237ab3356b100ebbdd6ff1a8839745023d Mon Sep 17 00:00:00 2001 From: Doug Evans Date: Tue, 3 May 2016 16:30:58 -0700 Subject: [PATCH] PR symtab/19914 fix handling of dwp + split debug PR symtab/19914 * dwarf2read.c (open_and_init_dwp_file): Look at backlink if objfile is separate debug file. testsuite/ * gdb.dwarf2/dwp-sepdebug.c: New file. * gdb.dwarf2/dwp-sepdebug.exp: New file. --- gdb/ChangeLog | 7 ++++++ gdb/dwarf2read.c | 20 +++++++++++++--- gdb/testsuite/ChangeLog | 7 ++++++ gdb/testsuite/gdb.dwarf2/dwp-sepdebug.c | 22 +++++++++++++++++ gdb/testsuite/gdb.dwarf2/dwp-sepdebug.exp | 40 +++++++++++++++++++++++++++++++ 5 files changed, 93 insertions(+), 3 deletions(-) create mode 100644 gdb/testsuite/gdb.dwarf2/dwp-sepdebug.c create mode 100644 gdb/testsuite/gdb.dwarf2/dwp-sepdebug.exp diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 78b3abb..faf2304 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,10 @@ +2016-05-03 Yunlian Jiang + Doug Evans + + PR symtab/19914 + * dwarf2read.c (open_and_init_dwp_file): Look at backlink if objfile + is separate debug file. + 2016-05-03 Don Breazeal * serial.h (gdb_pipe): Fix argument names in comment. diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 7bbf080..eb81151 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -10838,12 +10838,26 @@ open_and_init_dwp_file (void) struct dwp_file *dwp_file; char *dwp_name; bfd *dbfd; - struct cleanup *cleanups; + struct cleanup *cleanups = make_cleanup (null_cleanup, 0); /* Try to find first .dwp for the binary file before any symbolic links resolving. */ - dwp_name = xstrprintf ("%s.dwp", objfile->original_name); - cleanups = make_cleanup (xfree, dwp_name); + + /* If the objfile is a debug file, find the name of the real binary + file and get the name of dwp file from there. */ + if (objfile->separate_debug_objfile_backlink != NULL) + { + struct objfile *backlink = objfile->separate_debug_objfile_backlink; + const char *backlink_basename = lbasename (backlink->original_name); + char *debug_dirname = ldirname (objfile->original_name); + + make_cleanup (xfree, debug_dirname); + dwp_name = xstrprintf ("%s%s%s.dwp", debug_dirname, + SLASH_STRING, backlink_basename); + } + else + dwp_name = xstrprintf ("%s.dwp", objfile->original_name); + make_cleanup (xfree, dwp_name); dbfd = open_dwp_file (dwp_name); if (dbfd == NULL diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 6d34da6..bbb5262 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2016-05-03 Yunlian Jiang + Doug Evans + + PR symtab/19914 + * gdb.dwarf2/dwp-sepdebug.c: New file. + * gdb.dwarf2/dwp-sepdebug.exp: New file. + 2016-05-02 Simon Marchi * gdb.base/detach.exp: Remove is_remote check. diff --git a/gdb/testsuite/gdb.dwarf2/dwp-sepdebug.c b/gdb/testsuite/gdb.dwarf2/dwp-sepdebug.c new file mode 100644 index 0000000..bb11da2 --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/dwp-sepdebug.c @@ -0,0 +1,22 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2016 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 . */ + +int +main (int argc, char **argv) +{ + return 0; +} diff --git a/gdb/testsuite/gdb.dwarf2/dwp-sepdebug.exp b/gdb/testsuite/gdb.dwarf2/dwp-sepdebug.exp new file mode 100644 index 0000000..a4e7068 --- /dev/null +++ b/gdb/testsuite/gdb.dwarf2/dwp-sepdebug.exp @@ -0,0 +1,40 @@ +# Copyright 2016 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 . + +standard_testfile + +if { [build_executable ${testfile}.exp ${testfile} ${srcfile}] == -1 } { + return -1 +} +if ![remote_file host exists [standard_output_file ${testfile}.dwp]] { + unsupported "testsuite run does not produce dwp files" + return 0 +} + +# Note: the procedure gdb_gnu_strip_debug will produce an executable called +# ${binfile}, which is just like the executable ($binfile) but without +# the debuginfo. Instead $binfile has a .gnu_debuglink section which contains +# the name of a debuginfo only file. This file will be stored in the +# gdb.base/ subdirectory. + +if [gdb_gnu_strip_debug $binfile$EXEEXT] { + # check that you have a recent version of strip and objcopy installed + unsupported "cannot produce separate debug info files" + return -1 +} + +clean_restart "$testfile" + +gdb_test "ptype main" {type = int \(int, char \*\*\)} -- 2.7.4