61dee7220e
This commit fixes fission support in the Dwarf assembler. I added the new test gdb.dwarf2/fission-absolute-dwo.exp which is a simple example of using the fission support. I also rewrote the existing test gdb.dwarf2/fission-multi-cu.exp to use the new functionality (instead of using an x86-64 only assembler file). To better support compiling the assembler files produced by the Dwarf assembler I have added the new proc build_executable_and_dwo_files in lib/dwarf.exp, this replaces build_executable_from_fission_assembler, all the tests that used the old proc have been updated. Where the old proc assumed a single .S source file which contained the entire test, the new proc allows for multiple source files. The Dwarf assembler already had some fission support, however, this was not actually used in any tests, and when I tried using it there were a few issues. The biggest change is that we now generate DW_FORM_GNU_addr_index instead of DW_FORM_addr for the low and high pc in _handle_macro_at_range, support for the DW_FORM_GNU_addr_index is new in this commit. gdb/testsuite/ChangeLog: * gdb.dwarf2/fission-absolute-dwo.c: New file. * gdb.dwarf2/fission-absolute-dwo.exp: New file. * gdb.dwarf2/fission-base.exp: Use build_executable_and_dwo_files instead of build_executable_from_fission_assembler. * gdb.dwarf2/fission-loclists-pie.exp: Likewise. * gdb.dwarf2/fission-loclists.exp: Likewise.
41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* This testcase is part of GDB, the GNU debugger.
|
|
|
|
Copyright 2012-2021 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/>. */
|
|
|
|
#define LL(N) asm ("line_label_" #N ": .globl line_label_" #N)
|
|
|
|
/* Fake parameter location. */
|
|
int global_param = 0;
|
|
|
|
int
|
|
func (int arg)
|
|
{
|
|
asm ("func_label: .globl func_label");
|
|
LL(4);
|
|
return arg + 1;
|
|
}
|
|
|
|
int
|
|
main ()
|
|
{
|
|
asm ("main_label: .globl main_label");
|
|
LL(1);
|
|
global_param = -1;
|
|
LL(2);
|
|
func (-1);
|
|
LL(3);
|
|
return 0;
|
|
}
|