Test PR python/11407.
* gdb.dwarf2/dw2-ref-missing-frame-func.c: New file.
* gdb.dwarf2/dw2-ref-missing-frame.S: Use cu_text_start and cu_text_end.
Split main into func_nofb and func_loopfb dropping NO_FRAME_BASE.
* gdb.dwarf2/dw2-ref-missing-frame.exp: Remove variables sources,
executable_nofb and executable_fb. New variables srcsfile, objsfile,
srcfuncfile, objfuncfile, srcmainfile, objmainfile, executable and
binfile. Call gdb_compile with clean_restart twice.
(func_nofb print, func_nofb backtrace, func_loopfb print)
(func_loopfb backtrace): New.
+2010-06-25 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ Test PR python/11407.
+ * gdb.dwarf2/dw2-ref-missing-frame-func.c: New file.
+ * gdb.dwarf2/dw2-ref-missing-frame.S: Use cu_text_start and cu_text_end.
+ Split main into func_nofb and func_loopfb dropping NO_FRAME_BASE.
+ * gdb.dwarf2/dw2-ref-missing-frame.exp: Remove variables sources,
+ executable_nofb and executable_fb. New variables srcsfile, objsfile,
+ srcfuncfile, objfuncfile, srcmainfile, objmainfile, executable and
+ binfile. Call gdb_compile with clean_restart twice.
+ (func_nofb print, func_nofb backtrace, func_loopfb print)
+ (func_loopfb backtrace): New.
+
2010-06-25 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.dwarf2/dw2-ref-missing-frame-main.c: New.
--- /dev/null
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2010 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/>. */
+
+asm (".globl cu_text_start");
+asm ("cu_text_start:");
+
+asm (".globl func_nofb_start");
+asm ("func_nofb_start:");
+
+void
+func_nofb (void)
+{
+ /* int func_nofb_var; */
+}
+
+asm (".globl func_nofb_end");
+asm ("func_nofb_end:");
+
+asm (".globl func_loopfb_start");
+asm ("func_loopfb_start:");
+
+void
+func_loopfb (void)
+{
+ /* int func_loopfb_var; */
+}
+
+asm (".globl func_loopfb_end");
+asm ("func_loopfb_end:");
+
+asm (".globl cu_text_end");
+asm ("cu_text_end:");
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
-asm (".globl main_start");
-asm ("main_start:");
+extern void func_nofb (void);
+extern void func_loopfb (void);
int
main (void)
{
- /* int main_var; */
+ int main_var = 1;
+
+ func_nofb ();
+ func_loopfb ();
return 0;
}
-
-asm (".globl main_end");
-asm ("main_end:");
/* CU die */
.uleb128 1 /* Abbrev: DW_TAG_compile_unit */
- .4byte main_end /* DW_AT_high_pc */
- .4byte main_start /* DW_AT_low_pc */
+ .4byte cu_text_end /* DW_AT_high_pc */
+ .4byte cu_text_start /* DW_AT_low_pc */
.ascii "file1.txt\0" /* DW_AT_name */
.ascii "GNU C 3.3.3\0" /* DW_AT_producer */
.byte 1 /* DW_AT_language (C) */
.byte 4 /* DW_AT_byte_size */
.byte 5 /* DW_AT_encoding */
- /* func */
- .uleb128 6 /* Abbrev: DW_TAG_subprogram */
- .ascii "main\0" /* DW_AT_name */
- .4byte main_start /* DW_AT_low_pc */
- .4byte main_end /* DW_AT_high_pc */
-#ifndef NO_FRAME_BASE
+ /* func_nofb */
+ .uleb128 5 /* Abbrev: DW_TAG_subprogram (no fb) */
+ .ascii "func_nofb\0" /* DW_AT_name */
+ .4byte func_nofb_start /* DW_AT_low_pc */
+ .4byte func_nofb_end /* DW_AT_high_pc */
+
+ .uleb128 7 /* Abbrev: DW_TAG_variable (location) */
+ .ascii "func_nofb_var\0" /* DW_AT_name */
+ .byte 2f - 1f /* DW_AT_location */
+1: .byte 0x91 /* DW_OP_fbreg */
+ .sleb128 0 /* 0 */
+2: .4byte .Ltype_int-.Lcu1_begin /* DW_AT_type */
+
+ .byte 0 /* End of children of func */
+
+ /* func_loopfb */
+ .uleb128 6 /* Abbrev: DW_TAG_subprogram (loop fb) */
+ .ascii "func_loopfb\0" /* DW_AT_name */
+ .4byte func_loopfb_start /* DW_AT_low_pc */
+ .4byte func_loopfb_end /* DW_AT_high_pc */
.byte 2f - 1f /* DW_AT_frame_base */
1: .byte 0x91 /* DW_OP_fbreg */
.sleb128 0 /* 0 */
2:
-#endif
.uleb128 7 /* Abbrev: DW_TAG_variable (location) */
- .ascii "main_var\0" /* DW_AT_name */
+ .ascii "func_loopfb_var\0" /* DW_AT_name */
.byte 2f - 1f /* DW_AT_location */
1: .byte 0x91 /* DW_OP_fbreg */
.sleb128 0 /* 0 */
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
+ .uleb128 5 /* Abbrev code */
+ .uleb128 0x2e /* DW_TAG_subprogram (no fb) */
+ .byte 1 /* has_children */
+ .uleb128 0x3 /* DW_AT_name */
+ .uleb128 0x8 /* DW_FORM_string */
+ .uleb128 0x11 /* DW_AT_low_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .uleb128 0x12 /* DW_AT_high_pc */
+ .uleb128 0x1 /* DW_FORM_addr */
+ .byte 0x0 /* Terminator */
+ .byte 0x0 /* Terminator */
+
.uleb128 6 /* Abbrev code */
- .uleb128 0x2e /* DW_TAG_subprogram */
+ .uleb128 0x2e /* DW_TAG_subprogram (loop fb) */
.byte 1 /* has_children */
.uleb128 0x3 /* DW_AT_name */
.uleb128 0x8 /* DW_FORM_string */
.uleb128 0x1 /* DW_FORM_addr */
.uleb128 0x12 /* DW_AT_high_pc */
.uleb128 0x1 /* DW_FORM_addr */
-#ifndef NO_FRAME_BASE
.uleb128 0x40 /* DW_AT_frame_base */
.uleb128 0xa /* DW_FORM_block1 */
-#endif
.byte 0x0 /* Terminator */
.byte 0x0 /* Terminator */
}
set testfile "dw2-ref-missing-frame"
-set sources [list ${testfile}-main.c ${testfile}.S]
+set srcsfile ${testfile}.S
+set objsfile ${objdir}/${subdir}/${testfile}.o
+set srcfuncfile ${testfile}-func.c
+set objfuncfile ${objdir}/${subdir}/${testfile}-func.o
+set srcmainfile ${testfile}-main.c
+set objmainfile ${objdir}/${subdir}/${testfile}-main.o
+set executable ${testfile}
+set binfile ${objdir}/${subdir}/${executable}
-# First try referencing DW_AT_frame_base which is not defined.
-set executable_nofb ${testfile}-nofb
-if { [prepare_for_testing ${testfile}.exp $executable_nofb $sources {nodebug additional_flags=-DNO_FRAME_BASE}] } {
+if { [gdb_compile "${srcdir}/${subdir}/${srcsfile}" $objsfile object {}] != ""
+ || [gdb_compile "${srcdir}/${subdir}/${srcfuncfile}" $objfuncfile object {}] != ""
+ || [gdb_compile "${srcdir}/${subdir}/${srcmainfile}" $objmainfile object {debug}] != ""
+ || [gdb_compile "$objsfile $objfuncfile $objmainfile" $binfile executable {}] != "" } {
return -1
}
-if [runto_main] {
- gdb_test "p main_var" {Could not find the frame base for "main".}
+clean_restart $executable
+
+# First try referencing DW_AT_frame_base which is not defined.
+if [runto func_nofb] {
+ gdb_test "p func_nofb_var" {Could not find the frame base for "func_nofb".} "func_nofb print"
+ gdb_test "bt full" " in main .* main_var = 1" "func_nofb backtrace"
}
+# GDB could have crashed.
+clean_restart $executable
+
# And now try referencing DW_AT_frame_base defined using a self-reference
# (DW_OP_fbreg).
-set executable_fb ${testfile}-fb
-if { [prepare_for_testing ${testfile}.exp $executable_fb $sources {nodebug}] } {
- return -1
-}
-
-if [runto_main] {
- gdb_test "p main_var" "DWARF-2 expression error: Loop detected .*"
+if [runto func_loopfb] {
+ gdb_test "p func_loopfb_var" "DWARF-2 expression error: Loop detected .*" "func_loopfb print"
+ gdb_test "bt full" " in main .* main_var = 1" "func_loopfb backtrace"
}
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