Commit Graph

68368 Commits

Author SHA1 Message Date
Mike Frysinger 891e7fb179 sim: change to 64bit time keeping to avoid 32bit overflows
The sim-events code jumps through some hoops to avoid using 64bit math
to manage the current time.  One fundamental assumption here is that by
constantly scheduling the sim poll event a short time into the future,
the 64bit difference will always fall into a signed 32bit value.  This
does work most of the time, except for when processing the sim poll event
itself.

Normally, sim_events_process() will dequeue the sim poll event, update
the current time (time_from_event) according to the next pending event,
process the sim poll event (which will then requeue the sim poll event),
and then continue on.

The problem here of course is that the current time is updated in that
small window before the sim poll event gets a chance to reschedule itself.
So if the 64bit difference between the current time and the next event
does not fit into the signed 32bit value, time_from_event overflows, and
the internal assert at the end of update_time_from_event() triggers.

Since attempts at tweaking sim_events_process() logic introduced other
subtle bugs (due to tangled assumptions between most pieces of the sim
time keeping code), change the time_from_event to a real 64bit value.
Tests on my system between a 32bit ELF and a 64bit ELF show no practical
difference (it's all lost in the system noise).  Basically, I booted a
Linux kernel to userspace and then paniced it; this gave me a constant
sample size of about 18 million insns.

This was noticed when simulating Blackfin Das U-Boot.  The simulated core
timer is given the max unsigned timeout value possible on a 32bit processor
(0xffffffff).  This timeout value is used directly to schedule a hw event
in the sim future (the IRQ firing).  Once the sim poll event is kicked off,
the next pending event is the core timer event which is more than 2^31
ticks in the future, and the sim aborts with:
sim-events.c:435: assertion failed - current_time == sim_events_time (sd)

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-14 04:58:12 +00:00
gdbadmin 911684cfb7 *** empty log message *** 2011-02-14 00:00:02 +00:00
Alan Modra b72eef8c79 daily update 2011-02-13 23:00:04 +00:00
Ralf Wildenhues 822ce8ee21 Remove freebsd1 from libtool.m4 macros and config.rpath.
/:
	Import from Libtool and gnulib:

	2011-01-27  Gerald Pfeifer  <gerald@pfeifer.com>

	Prepare for supporting FreeBSD 10.
	* config.rpath: Remove handling of freebsd1* which soon would
	match FreeBSD 10.0.

	2011-01-20  Gerald Pfeifer  <gerald@pfeifer.com>  (tiny change)

	Remove support for FreeBSD 1.x.
	* libtool.m4 (_LT_LINKER_SHLIBS)
	(_LT_SYS_DYNAMIC_LINKER): Remove handling of freebsd1* which
	soon would incorrectly match FreeBSD 10.0.

bfd/:
	* configure: Regenerate.

gas/:
	* configure: Regenerate.

ld/:
	* configure: Regenerate.

opcodes/:
	* configure: Regenerate.

binutils/:
	* configure: Regenerate.

gprof/:
	* configure: Regenerate.
2011-02-13 21:00:14 +00:00
Mike Frysinger 13c02f06ff opcodes: blackfin: fix decoding of ABS
The single cycle dual mac ABS insn was incorrectly decoding the mac1
part of the insn.

Once we fix the decode, update the gas tests to have the correct output.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-13 18:55:22 +00:00
Mike Frysinger 4db6639409 opcodes: blackfin: fix decoding of dsp mult insns
When assigning to a register half, the mac0 part of the mult insn
was not decoding properly.  It would always show a full dreg instead
of the dreg low half.

Once we fix the disassembler, we have to update a few of the gas
tests as their previous expected output was incorrect.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-13 18:54:49 +00:00
Mike Frysinger 36f446111a gas/opcodes: blackfin: punt BYTEOP2M insn support
The BYTEOP2M insn was part of the initial Blackfin designs, but never made
it into any actual silicon.  So punt support for it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-13 18:53:16 +00:00
Jan Kratochvil bc9a5551ca gdb/
Fix const/volatile qualifiers of C++ types, PR c++/12328.
	* c-typeprint.c (c_type_print_args): Update the function comment.  New
	variable param_type, initialize it.  Remove const/volatile qualifiers
	for language_cplus and !show_artificial.  Use param_type.

gdb/testsuite/
	Fix const/volatile qualifiers of C++ types, PR c++/12328.
	* gdb.cp/overload-const.exp: New file.
	* gdb.cp/overload-const.cc: New file.
2011-02-13 09:15:54 +00:00
Jan Kratochvil 93b55aa198 gdb/
* symtab.c (find_pc_sect_line): New variable objfile, initialize it
	from S.  Iterate S using ALL_OBJFILE_SYMTABS.  Verify BV for each S.
	* symtab.h (struct symtab) <next>: Comment extension.
2011-02-13 09:09:36 +00:00
gdbadmin f865a34fb9 *** empty log message *** 2011-02-13 00:00:32 +00:00
Alan Modra f777cfc42b daily update 2011-02-12 23:00:05 +00:00
Mike Frysinger 9805c0a5b6 opcodes: blackfin: add missing space after PRNT insn
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-12 19:38:11 +00:00
Mike Frysinger 43a6aa65fe opcodes: blackfin: drop "GP" register
There never was a "GP" register, so punt it from the decode map.  It's
a hold over from a very old processor definition and never made it into
actual silicon.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-12 19:37:32 +00:00
Mike Frysinger 26bb3ddd50 gas/opcodes: blackfin: move dsp mac func defines to common header
The mmod field is decoded in a few places (gas/opcodes/sim), so move it to
a common place to avoid duplication.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-12 19:36:31 +00:00
Ralf Wildenhues dcb5e50678 Import move-if-change script from gnulib.
/:
	PR binutils/12283
	* MAINTAINERS (mkinstalldirs): Comes from Automake.
	(move-if-change): Comes from gnulib.
	* move-if-change: Import version from gnulib.
2011-02-12 15:47:02 +00:00
Ralf Wildenhues 8d8eef9acc Sync toplevel and config/ from GCC.
/:
	Sync from GCC:

	2011-02-12  Alexandre Oliva  <aoliva@redhat.com>

	PR lto/47225
	* Makefile.def (lto-plugin): Double dash for enable-shared.
	(configure-gcc): Depend on all-lto-plugin.
	* Makefile.in: Rebuilt.

	2011-02-11  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>

	* configure.ac: Remove extra bracket.
	* configure: Regenerate.

	2011-02-06  Kai Tietz  <kai.tietz@onevision.com>

	PR lto/47225
	* Makefile.def: Add dependency for install-gcc
	on install-lto-plugin.
	* Makfile.in: Regenerated

	2011-01-25  Jakub Jelinek  <jakub@redhat.com>

	* configure.ac: If with_ppl is no, move setting with_cloog=no
	after CLOOG_REQUESTED check.
	* configure: Regenerated.

	2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

	* configure.ac: Call AC_MSG_ERROR when PPL 0.11 is not present and
	CLooG has been requested.
	* configure: Regenerated.

	2011-01-25  Sebastian Pop  <sebastian.pop@amd.com>

	* configure: Regenerated.
	* configure.ac: Check for version 0.11 (or later revision) of PPL.

	2011-01-25  Tobias Grosser  <grosser@fim.uni-passau.de>

	* configure: Regenerated.
	* configure.ac: Use CLOOG_CHECK_VERSION(0,16,1).

	2011-01-07  Jan Hubicka  <jh@suse.cz>

	PR lto/47225
	* Makefile.in: Regenerate.
	* Makefile.def (lto-plugin): Always pass enable-shared to the plugin
	configure.

config/:
2011-01-25  Jakub Jelinek  <jakub@redhat.com>

	* cloog.m4 (CLOOG_REQUESTED): Use $2 if --without-cloog.

2011-01-10  Jan Hubicka  <jh@suse.cz>

	* bootstrap-lto.mk: -fuse-linker-plugin is default now;
	pass -fno-lto to STAGEprofile.
2011-02-12 14:40:09 +00:00
Yao Qi 181d9476d8 2011-02-12 Yao Qi <yao@codesourcery.com>
* Makefile.in (CLEANDIRS): Remove duplicated common dir.
2011-02-12 13:07:39 +00:00
Sriraman Tallam 4cf7a849ef 2011-02-11 Sriraman Tallam <tmsriram@google.com>
* output.cc (Output_section::add_input_section): Delay fill
	generation for section ordering.
2011-02-12 03:19:24 +00:00
Yao Qi d40a55942b 2011-02-11 Yao Qi <yao@codesourcery.com>
* Makefile.in: Add copyright header.
2011-02-12 02:57:01 +00:00
gdbadmin fce1433dcd *** empty log message *** 2011-02-12 00:00:03 +00:00
Alan Modra b4e297a3c7 daily update 2011-02-11 23:00:15 +00:00
Mike Frysinger 347d120a63 gas: blackfin: docs: typo fixes and fill out directive info
A bunch of Blackfin-specific directives were lacking info on what they
actually do, so fill in the blanks.  Further, the byte2/byte4 descriptions
were swapped.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-11 19:05:30 +00:00
Mike Frysinger 5f95629354 gas: blackfin: reject FP/SP with TESTSET
The TESTSET insn does not work with the FP/SP Pregs, so reject them.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-11 19:04:33 +00:00
Mike Frysinger 69b8ea4abd opcodes: blackfin: constify register names
Constify the array itself since it need not be writable.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-11 19:03:27 +00:00
Mike Frysinger dd76fcb82e opcodes: blackfin: add multiple inclusion protection
Prevent build errors if the header happens to be included multiple times.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-11 17:47:54 +00:00
Pedro Alves c5187ac67b * infrun.c (proceed): Move switching out and in of tfind mode from
here ...
	(fetch_inferior_event): ... to here.
2011-02-11 15:07:50 +00:00
Yao Qi 4f3e6fb7a0 2011-02-11 Yao Qi <yao@codesourcery.com>
* Makefile.in: Remove signals.o from COMMON_OBS.  Link
	libcommon.a.
	* configure.ac: Add common to sub dir.
	* configure: Regenerate.

common/
2011-02-11  Yao Qi  <yao@codesourcery.com>

	Build libcommon.a.

	* Makefile.in: New.
	* configure.ac: New.
	* aclocal.m4: New.
	* configure: Generate.

gdbserver/
2011-02-11  Yao Qi  <yao@codesourcery.com>

	* configure.ac: Call AC_PROG_RANLIB.
	* Makefile.in: Remove signals.o from OBS.  Link libcommon.a.
	* configure: Regenerate.
2011-02-11 09:57:25 +00:00
gdbadmin 00a9652c1b *** empty log message *** 2011-02-11 00:00:33 +00:00
Alan Modra cc3db291f5 daily update 2011-02-10 23:00:04 +00:00
Alan Modra c0e524fe0f * doc/c-ppc.texi (PowerPC-Opts <-nops>): Clarify. 2011-02-10 22:50:09 +00:00
Pedro Alves fc01361832 Fix whitespace. 2011-02-10 18:40:22 +00:00
Pedro Alves 2287cc7e0e * vec.h (VEC_block_remove): Place VEC_ASSERT_INFO on the right
side of the parenthesis.

	Merge from GCC:
	2010-07-13  Jakub Jelinek  <jakub@redhat.com>
        * vec.h (VEC_block_remove): Fix comment.
2011-02-10 18:31:28 +00:00
Kai Tietz 40c034ebed 2011-02-10 Kai Tietz <kai.tietz@onevision.com>
* gas/cfi/cfi-x86_64.d: Adjust for x64 PE+.
2011-02-10 17:06:44 +00:00
Alan Modra 635fb38d39 * doc/as.texinfo (Overview): Add missing markup around Blackfin
and PowerPC options.
2011-02-10 12:29:23 +00:00
Alan Modra b8b738ac92 * config/tc-ppc.c (md_show_usage): Remove -l and -b. Add -K PIC.
* doc/as.texinfo: Refer to and include c-ppc.texi for PowerPC options.
	(Overview <Target PowerPC options>): Add a number of missing options.
	* doc/c-ppc.texi: Likewise.  Add markup for use in manpage generation.
2011-02-10 11:59:12 +00:00
Alan Modra 726eb385b2 * gas/m68k/cpu32.d: Set explicit architecture for objdump.
* gas/m68k/mcf-coproc.d: Likewise.
	* gas/m68k/mcf-wdebug.d: Likewise.
2011-02-10 08:43:27 +00:00
Alan Modra dc56ba2d58 remove accidental SANE_EXPR change 2011-02-10 08:35:26 +00:00
Alan Modra 09b910c68c * scripttempl/armbpabi.sc: Revert 2010-11-02 H.J. Lu.
* scripttempl/avr.sc: Likewise.
	* scripttempl/elf32cr16.sc: Likewise.
	* scripttempl/elf32crx.sc: Likewise.
	* scripttempl/elf32msp430.sc: Likewise.
	* scripttempl/elf32msp430_3.sc: Likewise.
	* scripttempl/elf32sh-symbian.sc: Likewise.
	* scripttempl/elf64hppa.sc: Likewise.
	* scripttempl/elf_chaos.sc: Likewise.
	* scripttempl/elfd10v.sc: Likewise.
	* scripttempl/elfd30v.sc: Likewise.
	* scripttempl/elfi370.sc: Likewise.
	* scripttempl/elfm68hc11.sc: Likewise.
	* scripttempl/elfm68hc12.sc: Likewise.
	* scripttempl/elfxtensa.sc: Likewise.
	* scripttempl/ip2k.sc: Likewise.
	* scripttempl/iq2000.sc: Likewise.
	* scripttempl/mep.sc: Likewise.
	* scripttempl/mmo.sc: Likewise.
	* scripttempl/v850.sc: Likewise.
	* scripttempl/xstormy16.sc: Likewise.
	* scripttempl/elf.sc: Revert 2010-10-29  H.J. Lu.
2011-02-10 08:18:58 +00:00
Alan Modra ea6c5ce90d * ld-scripts/defined.exp: Don't run defined5 for AOUT.
* ld-scripts/defined5.s: Use .text for "defined" section.
	* ld-scripts/defined5.t: Adjust.
2011-02-10 08:04:22 +00:00
Alan Modra 6092a2bf7b * ld-gc/start.d: Exclude frv-*-linux*.
* ld-misc/defsym1.d: Likewise.
2011-02-10 07:24:06 +00:00
Alan Modra 867287bb32 * gas/elf/dwarf2-4.s: Don't use @. 2011-02-10 05:06:19 +00:00
Ian Lance Taylor b578bd7d05 PR gold/12316
* object.h (class Sized_relobj): Remove clear_local_symbols.
	* reloc.cc (Sized_relobj::do_relocate): Don't call
	clear_local_symbols.
2011-02-10 01:12:37 +00:00
gdbadmin bf8b9e1e88 *** empty log message *** 2011-02-10 00:00:03 +00:00
Alan Modra c202f10bb3 daily update 2011-02-09 23:00:04 +00:00
Michael Snyder 42d5f9c6ef 2011-02-09 Michael Snyder <msnyder@vmware.com>
* i386-dis.c (OP_J): Parenthesize expression to prevent
	truncated addresses.
	(print_insn): Fix indentation off-by-one.
2011-02-09 18:43:41 +00:00
Alan Modra 2893311c83 * ld-elfvsb/elfvsb.exp: Don't run any non-PIC tests on powerpc*-linux.
* ld-gc/gc.exp: Ensure powerpc64 test continues to fail.
	* ld-srec/srec.exp: Don't edit toc on powerpc64.
2011-02-09 08:18:54 +00:00
Alan Modra 425b145b6e * elf64-ppc.c (ppc64_elf_edit_toc): Don't free toc relocs until
we are done.  When optimising large toc, check that a global
	symbol on a toc reloc is defined in a kept section.
2011-02-09 08:16:00 +00:00
gdbadmin 4fdf02beb7 *** empty log message *** 2011-02-09 00:00:33 +00:00
Alan Modra b1eecb365d daily update 2011-02-08 23:00:06 +00:00
Michael Snyder fd62cb89c5 2011-02-08 Michael Snyder <msnyder@vmware.com>
* linux-nat.c (linux_nat_filter_event): Fix typo in comment.
2011-02-08 22:35:57 +00:00