Binutils with MCST patches
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Pedro Alves 62261490a3 Fix gdb.trace/mi-traceframe-changed.exp on s390.
The test fails on s390 with:

  -trace-find frame-number 0^M
  &"PC not available\n"^M
  ^done,found="1",tracepoint="1",traceframe="0",frame={level="-1",addr="<unavailable>",func="??",args=[]}^M
  (gdb) ^M
  FAIL: gdb.trace/mi-traceframe-changed.exp: tfile: -trace-find frame-number 0

tfile knows to infer the PC from the tracepoint's address if the PC
wasn't collected (tfile_fetch_registers) but, that only works on
targets whose PC register is a raw register, and on s390, the PC
register is a pseudo register.

But even if GDB doesn't know how to infer the value of PC, saying the
current frame is level -1 is a bug:

  ^done,found="1",tracepoint="1",traceframe="0",frame={level="-1",addr="<unavailable>",func="??",args=[]}^M
                                                       ^^^^^^^^^

'-1' is the level of the sentinel frame, which should never be visible.

This is caused by the s390's heuristic unwinder accepting the frame
(the fallback heuristic unwinders _always_ accept the frame), but then
the unwind->this_id method throws that "PC not available\n" error.

IOW, the s390's heuristic unwinder was never adjusted to handle
unavailable register values gracefully, which can happen with e.g., a
trimmed core file too.

This is just the minimal necessary for
<unavailable> frames, which at least gets us:

  (gdb) tfind
  Found trace frame 0, tracepoint 1
  #0  <unavailable> in ?? ()

That is, frame #0 instead of -1.

We could get better info out of "info frame" (this patch makes us show
"outermost"), but this change would still be necessary.

gdb/
2014-01-16  Pedro Alves  <palves@redhat.com>

	* s390-linux-tdep.c (s390_frame_unwind_cache): Swallow
	NOT_AVAILABLE_ERROR errors while parsing the prologue or reading
	the backchain.
2014-01-16 17:43:46 +00:00
bfd Fix mips segfault on GOT access of absolute symbol 2014-01-16 11:56:50 +10:30
binutils Update copyright year to 2014 2014-01-08 05:48:12 -08:00
config strip off +x bits on non-executable/script files 2013-12-07 02:03:03 -05:00
cpu strip off +x bits on non-executable/script files 2013-12-07 02:03:03 -05:00
elfcpp
etc
gas PR gas/16434 2014-01-14 12:39:45 +00:00
gdb Fix gdb.trace/mi-traceframe-changed.exp on s390. 2014-01-16 17:43:46 +00:00
gold Update copyright year to 2014 2014-01-08 05:48:12 -08:00
gprof New Year - binutils ChangeLog rotation 2014-01-08 05:32:12 -08:00
include remove include/gdbm.h 2014-01-09 10:16:18 -07:00
intl
ld Skip directories with LIBPATH_SUFFIX_SKIP suffix 2014-01-15 20:09:09 -08:00
libdecnumber
libiberty libiberty: fix --enable-install-libiberty flag [PR 56780] 2014-01-06 13:44:33 -05:00
opcodes Fix buffer underrun in i386-dis.c. 2014-01-09 11:22:59 -08:00
readline
sim remove VA_* macros from sim 2014-01-07 09:17:05 -07:00
texinfo
.cvsignore
.gitignore
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB
COPYING3
COPYING3.LIB
ChangeLog fortran: enable ptype/whatis for modules. 2013-12-19 13:18:21 +01:00
MAINTAINERS
Makefile.def
Makefile.in
Makefile.tpl
README
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compile
config-ml.in
config.guess
config.rpath
config.sub
configure * configure.ac: Add user-friendly check for native x86_64-linux multilibs. * configure: Regenerate. 2013-12-16 13:42:54 -07:00
configure.ac * configure.ac: Add user-friendly check for native x86_64-linux multilibs. * configure: Regenerate. 2013-12-16 13:42:54 -07:00
depcomp
djunpack.bat
install-sh
libtool.m4
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ltsugar.m4
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lt~obsolete.m4
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README

		   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,
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	./configure 
	make

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then do:
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