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Tom de Vries 77e7aaa4bd [gdb/testsuite] Fix .debug_aranges in dw2-case-insensitive-debug.S
When running gdb.dwarf2/dw2-case-insensitive.exp with target board
cc-with-debug-names, we run into:
...
FAIL: gdb.dwarf2/dw2-case-insensitive.exp: regexp case-sensitive off \
  (GDB internal error)
...
in more detail:
...
(gdb) info functions fUnC_lang
gdb/dwarf2read.c:5293: internal-error: \
  compunit_symtab* dw2_find_pc_sect_compunit_symtab(objfile*, \
  bound_minimal_symbol, CORE_ADDR, obj_section*, int): \
  Assertion `result != NULL' failed.
...

The problem is that the .debug_aranges section in dw2-case-insensitive-debug.S
contains a debug_info_offset which is set to 0:
...
        .section        .debug_aranges,"",@progbits
        .4byte  .Laranges_end - .Laranges_start
.Laranges_start:
        .2byte  0x2
        .4byte  0
...
while the compilation unit at offset 0 in the .debug_section of the executable
is in fact not the compilation unit generated from
dw2-case-insensitive-debug.S.

This happens when linked in object files contain dwarf info and are placed in
the .debug_info section before the compilation unit generated from
dw2-case-insensitive-debug.S.

Fix this by defining the debug_info_offset field using the label .Lcu1_begin
that defines the start of the compilation unit:
...
-       .4byte  0
+       .4byte  .Lcu1_begin
...

Tested on x86_64-linux with native, cc-with-gdb-index and cc-with-debug-names.

gdb/testsuite/ChangeLog:

2019-05-07  Tom de Vries  <tdevries@suse.de>

	PR testsuite/24522
	* gdb.dwarf2/dw2-case-insensitive-debug.S: Fix debug_info_offset in
	.debug_aranges section.
2019-05-07 10:58:57 +02:00
bfd Automatic date update in version.in 2019-05-07 00:00:24 +00:00
binutils Fix spelling mistakes in binutils testsuite. 2019-05-01 16:52:51 +01:00
config
contrib
cpu
elfcpp
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gas Tidy use_complex_relocs_for 2019-05-07 15:35:53 +09:30
gdb [gdb/testsuite] Fix .debug_aranges in dw2-case-insensitive-debug.S 2019-05-07 10:58:57 +02:00
gold
gprof
include Add load-link, store-conditional paired EVA instructions 2019-05-06 06:43:32 -07:00
intl
ld PicoJava weak undefined symbols 2019-05-06 11:41:28 +09:30
libdecnumber
libiberty
opcodes Add load-link, store-conditional paired EVA instructions 2019-05-06 06:43:32 -07:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
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also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

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the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.