2012-09-26 Jan Kratochvil <jan.kratochvil@redhat.com>

	    Tom Tromey  <tromey@redhat.com>
	* dwarf2read.c (read_common_block): Rewrite.
	(new_symbol_full): Handle DW_TAG_common_block.
	* f-lang.c (head_common_list, find_common_for_function):
	Remove.
	* f-lang.h (struct common_entry, struct saved_f77_common,
	SAVED_F77_COMMON, SAVED_F77_COMMON_PTR, COMMON_ENTRY,
	COMMON_ENTRY_PTR, head_common_list, find_common_for_function,
	BLANK_COMMON_NAME_LOCAL): Remove.
	(struct common_block): New.
	* f-valprint.c (list_all_visible_commons): Remove.
	(info_common_command_for_block): New function.
	(info_common_command): Use it.
	* stack.c (iterate_over_block_locals): Special case for
	COMMON_BLOCK_DOMAIN.
	* symtab.h (enum domain_enum_tag) <COMMON_BLOCK_DOMAIN>: New
	constant.
	(struct general_symbol_info) <value.common_block>: New field.
	(SYMBOL_VALUE_COMMON_BLOCK): New define.
gdb/testsuite
2012-09-26  Jan Kratochvil  <jan.kratochvil@redhat.com>
	* gdb.fortran/common-block.exp: New file.
	* gdb.fortran/common-block.f90: New file.

2 files changed, 165 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.fortran/common-block.exp b/gdb/testsuite/gdb.fortran/common-block.exp
new file mode 100644
index 0000000..61a98d4
--- /dev/null
+++ b/gdb/testsuite/gdb.fortran/common-block.exp
@@ -0,0 +1,98 @@
+# Copyright 2008, 2012 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, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  
+
+# This file was written by Jan Kratochvil <jan.kratochvil@redhat.com>.
+
+if {[skip_fortran_tests]} {
+    return 0
+}
+
+standard_testfile .f90
+
+if {[prepare_for_testing ${testfile}.exp ${testfile} \
+	 $srcfile {debug f90 quiet}]} {
+    return -1
+}
+
+if ![runto MAIN__] then {
+    perror "couldn't run to breakpoint MAIN__"
+    continue
+}
+
+gdb_breakpoint [gdb_get_line_number "stop-here-out"]
+gdb_continue_to_breakpoint "stop-here-out"
+
+# Common block naming with source name /foo/:
+#                .symtab  DW_TAG_common_block's DW_AT_name
+# Intel Fortran  foo_     foo_
+# GNU Fortran    foo_     foo
+#set suffix "_"
+set suffix ""
+
+set int4 {(integer\(kind=4\)|INTEGER\(4\))}
+set real4 {(real\(kind=4\)|REAL\(4\))}
+set real8 {(real\(kind=8\)|REAL\(8\))}
+
+gdb_test "whatis foo$suffix" "No symbol \"foo$suffix\" in current context."
+gdb_test "ptype foo$suffix" "No symbol \"foo$suffix\" in current context."
+gdb_test "p foo$suffix" "No symbol \"foo$suffix\" in current context."
+gdb_test "whatis fo_o$suffix" "No symbol \"fo_o$suffix\" in current context."
+gdb_test "ptype fo_o$suffix" "No symbol \"fo_o$suffix\" in current context."
+gdb_test "p fo_o$suffix" "No symbol \"fo_o$suffix\" in current context."
+
+gdb_test "info locals" "ix_x = 11\r\niy_y = 22\r\niz_z = 33\r\nix = 1\r\niy = 2\r\niz = 3" "info locals out"
+gdb_test "info common" "Contents of F77 COMMON block 'fo_o':\r\nix_x = 11\r\niy_y = 22\r\niz_z = 33\r\n\r\nContents of F77 COMMON block 'foo':\r\nix = 1\r\niy = 2\r\niz = 3" "info common out"
+
+gdb_test "ptype ix" "type = $int4" "ptype ix out"
+gdb_test "ptype iy" "type = $real4" "ptype iy out"
+gdb_test "ptype iz" "type = $real8" "ptype iz out"
+gdb_test "ptype ix_x" "type = $int4" "ptype ix_x out"
+gdb_test "ptype iy_y" "type = $real4" "ptype iy_y out"
+gdb_test "ptype iz_z" "type = $real8" "ptype iz_z out"
+
+gdb_test "p ix" " = 1 *" "p ix out"
+gdb_test "p iy" " = 2 *" "p iy out"
+gdb_test "p iz" " = 3 *" "p iz out"
+gdb_test "p ix_x" " = 11 *" "p ix_x out"
+gdb_test "p iy_y" " = 22 *" "p iy_y out"
+gdb_test "p iz_z" " = 33 *" "p iz_z out"
+
+gdb_breakpoint [gdb_get_line_number "stop-here-in"]
+gdb_continue_to_breakpoint "stop-here-in"
+
+gdb_test "whatis foo$suffix" "No symbol \"foo$suffix\" in current context." "whatis foo$suffix in"
+gdb_test "ptype foo$suffix" "No symbol \"foo$suffix\" in current context." "ptype foo$suffix in"
+gdb_test "p foo$suffix" "No symbol \"foo$suffix\" in current context." "p foo$suffix in"
+gdb_test "whatis fo_o$suffix" "No symbol \"fo_o$suffix\" in current context." "whatis fo_o$suffix in"
+gdb_test "ptype fo_o$suffix" "No symbol \"fo_o$suffix\" in current context." "ptype fo_o$suffix in"
+gdb_test "p fo_o$suffix" "No symbol \"fo_o$suffix\" in current context." "p fo_o$suffix in"
+
+gdb_test "info locals" "ix = 11\r\niy2 = 22\r\niz = 33\r\nix_x = 1\r\niy_y = 2\r\niz_z2 = 3\r\niy = 5\r\niz_z = 55" "info locals in"
+gdb_test "info common" "Contents of F77 COMMON block 'fo_o':\r\nix = 11\r\niy2 = 22\r\niz = 33\r\n\r\nContents of F77 COMMON block 'foo':\r\nix_x = 1\r\niy_y = 2\r\niz_z2 = 3" "info common in"
+
+gdb_test "ptype ix" "type = $int4" "ptype ix in"
+gdb_test "ptype iy2" "type = $real4" "ptype iy2 in"
+gdb_test "ptype iz" "type = $real8" "ptype iz in"
+gdb_test "ptype ix_x" "type = $int4" "ptype ix_x in"
+gdb_test "ptype iy_y" "type = $real4" "ptype iy_y in"
+gdb_test "ptype iz_z2" "type = $real8" "ptype iz_z2 in"
+
+gdb_test "p ix" " = 11 *" "p ix in"
+gdb_test "p iy2" " = 22 *" "p iy2 in"
+gdb_test "p iz" " = 33 *" "p iz in"
+gdb_test "p ix_x" " = 1 *" "p ix_x in"
+gdb_test "p iy_y" " = 2 *" "p iy_y in"
+gdb_test "p iz_z2" " = 3 *" "p iz_z2 in"
diff --git a/gdb/testsuite/gdb.fortran/common-block.f90 b/gdb/testsuite/gdb.fortran/common-block.f90
new file mode 100644
index 0000000..1ccfd38
--- /dev/null
+++ b/gdb/testsuite/gdb.fortran/common-block.f90
@@ -0,0 +1,67 @@
+! Copyright 2008, 2012 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, write to the Free Software
+! Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+!
+! Ihis file is the Fortran source file for dynamic.exp.
+! Original file written by Jakub Jelinek <jakub@redhat.com>.
+! Modified for the GDB testcase by Jan Kratochvil <jan.kratochvil@redhat.com>.
+
+subroutine in
+
+   INTEGER*4            ix
+   REAL*4               iy2
+   REAL*8               iz
+
+   INTEGER*4            ix_x
+   REAL*4               iy_y
+   REAL*8               iz_z2
+
+   common /fo_o/ix,iy2,iz
+   common /foo/ix_x,iy_y,iz_z2
+
+   iy = 5
+   iz_z = 55
+
+   if (ix .ne. 11 .or. iy2 .ne. 22.0 .or. iz .ne. 33.0) call abort
+   if (ix_x .ne. 1 .or. iy_y .ne. 2.0 .or. iz_z2 .ne. 3.0) call abort
+
+   ix = 0					! stop-here-in
+
+end subroutine in
+
+program common_test
+
+   INTEGER*4            ix
+   REAL*4               iy
+   REAL*8               iz
+
+   INTEGER*4            ix_x
+   REAL*4               iy_y
+   REAL*8               iz_z
+
+   common /foo/ix,iy,iz
+   common /fo_o/ix_x,iy_y,iz_z
+
+   ix = 1
+   iy = 2.0
+   iz = 3.0
+
+   ix_x = 11
+   iy_y = 22.0
+   iz_z = 33.0
+
+   call in					! stop-here-out
+
+end program common_test