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author | Joel Brobecker <brobecker@gnat.com> | 2013-03-29 02:04:15 +0000 |
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committer | Joel Brobecker <brobecker@gnat.com> | 2013-03-29 02:04:15 +0000 |
commit | af312be73153278ccc14e39c40a2bb0923578aa8 (patch) | |
tree | 9beb9b575195b2ea5f021bc599236f535ec17b9b /gdb/testsuite/gdb.ada | |
parent | 0349ea227a93db57acba96cba1a3556742e1bddf (diff) | |
download | fsf-binutils-gdb-af312be73153278ccc14e39c40a2bb0923578aa8.zip fsf-binutils-gdb-af312be73153278ccc14e39c40a2bb0923578aa8.tar.gz fsf-binutils-gdb-af312be73153278ccc14e39c40a2bb0923578aa8.tar.bz2 |
Ignore __fu<digits>__ symbols from COFF symbol tables
The debugger sometimes prints strange function names for given
addresses. For instance, with the following source code...
4 procedure Foo is
5 A : Integer;
6 begin
7 Do_Nothing (A'Address);
8 end Foo;
... we can see...
(gdb) info line 5
Line 5 of "foo.adb" starts at address 0x4017ca <_ada_foo+6>
and ends at 0x4017d2 <_fu29__system__scalar_values__is_is4+7>.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_fu29__system__scalar_values__is_is4 is an artificial symbol
generated by the linker, and interferes with the pc-to-symbol
resolution. There isn't much in the general minimal_symbol
data that could help us identify them, so this patch changes
the COFF reader to simply ignore them.
gdb/ChangeLog:
* coffread.c (is_import_fixup_symbol): New function.
(record_minimal_symbol): Use is_import_fixup_symbol to
detect import fixup symbols, and discard them.
gdb/testsuite/ChangeLog:
* gdb.ada/win_fu_syms: New testcase.
Diffstat (limited to 'gdb/testsuite/gdb.ada')
-rw-r--r-- | gdb/testsuite/gdb.ada/win_fu_syms.exp | 35 | ||||
-rw-r--r-- | gdb/testsuite/gdb.ada/win_fu_syms/foo.adb | 23 | ||||
-rw-r--r-- | gdb/testsuite/gdb.ada/win_fu_syms/pck.adb | 21 | ||||
-rw-r--r-- | gdb/testsuite/gdb.ada/win_fu_syms/pck.ads | 19 |
4 files changed, 98 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.ada/win_fu_syms.exp b/gdb/testsuite/gdb.ada/win_fu_syms.exp new file mode 100644 index 0000000..c3cbf16 --- /dev/null +++ b/gdb/testsuite/gdb.ada/win_fu_syms.exp @@ -0,0 +1,35 @@ +# Copyright 2013 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 <http://www.gnu.org/licenses/>. + +load_lib "ada.exp" + +standard_ada_testfile foo + +if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug additional_flags=-bargs additional_flags=-shared additional_flags=-margs]] != "" } { + return -1 +} + +clean_restart ${testfile} + +set loc [gdb_get_line_number "Integer" ${testdir}/foo.adb] +gdb_test "info line foo.adb:$loc" \ + "Line $decimal of \".*foo\\.adb\" starts at address $hex <_ada_foo\\+$decimal> and ends at $hex <_ada_foo\\+$decimal>\\." \ + "info line on variable declaration" + +set loc [gdb_get_line_number "Do_Nothing" ${testdir}/foo.adb] +gdb_test "info line foo.adb:$loc" \ + "Line $decimal of \".*foo\\.adb\" starts at address $hex <_ada_foo\\+$decimal> and ends at $hex <_ada_foo\\+$decimal>\\." \ + "info line on Do_Nothing call" + diff --git a/gdb/testsuite/gdb.ada/win_fu_syms/foo.adb b/gdb/testsuite/gdb.ada/win_fu_syms/foo.adb new file mode 100644 index 0000000..a09a346 --- /dev/null +++ b/gdb/testsuite/gdb.ada/win_fu_syms/foo.adb @@ -0,0 +1,23 @@ +-- Copyright 2013 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 <http://www.gnu.org/licenses/>. + +pragma Initialize_Scalars; +with Pck; use Pck; + +procedure Foo is + A : Integer; +begin + Do_Nothing (A'Address); +end Foo; diff --git a/gdb/testsuite/gdb.ada/win_fu_syms/pck.adb b/gdb/testsuite/gdb.ada/win_fu_syms/pck.adb new file mode 100644 index 0000000..808da4db --- /dev/null +++ b/gdb/testsuite/gdb.ada/win_fu_syms/pck.adb @@ -0,0 +1,21 @@ +-- Copyright 2007-2013 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 <http://www.gnu.org/licenses/>. + +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/win_fu_syms/pck.ads b/gdb/testsuite/gdb.ada/win_fu_syms/pck.ads new file mode 100644 index 0000000..d5791b2 --- /dev/null +++ b/gdb/testsuite/gdb.ada/win_fu_syms/pck.ads @@ -0,0 +1,19 @@ +-- Copyright 2007-2013 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 <http://www.gnu.org/licenses/>. + +with System; +package Pck is + procedure Do_Nothing (A : System.Address); +end Pck; |