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Marin Cermak has found various testcases (or one of them) of GDB FAIL on ppc64. https://sourceware.org/bugzilla/show_bug.cgi?id=20328 .o contained only the function descriptor address. The DWARF as produced by Tcl Dwarf::assemble: <1><27>: Abbrev Number: 4 (DW_TAG_subprogram) <28> DW_AT_name : main <2d> DW_AT_external : 1 <2e> DW_AT_low_pc : 0x1001ff98 <36> DW_AT_high_pc : 0x1002ff98 <2><3e>: Abbrev Number: 5 (DW_TAG_lexical_block) Runtime info: $2 = {<text variable, no debug info>} 0x10000674 <.main> $3 = {void ()} 0x1001ff98 <main> On Tue, 12 Jul 2016 15:22:49 +0200, Ulrich Weigand wrote: Well, most of the gdb.dwarf2 test cases simply use explicitly placed labels for the DW_AT_low_pc / DW_AT_high_pc attributes. See e.g. dw2-unresolved-main.c: asm (".globl cu_text_start"); asm ("cu_text_start:"); On Wed, 13 Jul 2016 10:54:00 +0200, Jan Kratochvil wrote: Now I see I should not do that because: lib/dwarf.exp: proc function_range { func src } { So I am providing this patch. gdb/testsuite/ChangeLog 2016-07-13 Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.dwarf2/atomic-type.exp: Use function_range for low_pc and high_pc. * gdb.dwarf2/atomic.c (f): Rename f_end_lbl to f_label. * gdb.dwarf2/dw2-bad-mips-linkage-name.c (f): Rename f_end_lbl to f_label. (g): Rename g_end_lbl to g_label. * gdb.dwarf2/dw2-bad-mips-linkage-name.exp: Use function_range for low_pc and high_pc. * gdb.dwarf2/dw2-lexical-block-bare.exp: Likewise.
35 lines
1002 B
C
35 lines
1002 B
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2004-2016 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Dummy main function. */
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int
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main (void)
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{
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asm ("main_label: .globl main_label");
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return 0;
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}
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/* dummy f function, DWARF will describe arguments and type differently. */
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int
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f (char *x)
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{
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asm ("f_label: .globl f_label");
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return 0;
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}
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