All,
During Connect the suggestion was made that each working group should have
its own IRC Channel for discussions and topics relating to the group in
particular (as opposed to #linaro which is 'generic' Linaro conversations).
Therefore I have just set up #linaro-tcwg on Freenode for the Toolchain
Working Group.
This channel is public and open to anyone who wants to talk with the TCWG
group about anything toolchain related.
Thanks,
Matt
--
Matthew Gretton-Dann
Toolchain Working Group, Linaro
== Progress ==
* [ARM GlobalISel] Fix atomic loads/stores after r294993 [TCWG-1041] [1/10]
- For the moment we just bail out if we have any atomic loads /
stores. This is better than silently replacing them with non-atomic
operations.
* [ARM GlobalISel] Add support for lowering calls [TCWG-1038] [6/10]
- Committed support for calls with args/returns in registers (ints,
pointers, floating point)
- Found and reported a bug in the AArch64 backend
- Working on lowering stack arguments: committed support for stores,
still working on adding support for GEPs and constants so we can
actually compute the addresses that we have to store to
* Misc [3/10]
- Meetings, mailing lists, code reviews
- Connect slides
- Buildbots (reverted patches with flaky tests, fixed mips-specific
test to run only when mips is built)
== Plan ==
* Out of office on Thursday and Friday
* [ARM GlobalISel] Add support for lowering calls [TCWG-1038]
== Progress ==
* Validation
- more work on use of containers, ssh-agent & jenkins problems
- added an experimental job to prepare the migration to
the new scripts
* misc (conf-calls, meetings, emails, ....)
== Next ==
* Holidays next week
* Connect
Hi Guys,
Could you please let me know which release of toolchain support v8.2-A CPU? How to get it?
https://www.linaro.org/downloads/
Thanks
David
IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
Oh dear...
Adding linaro-toolchain(a)lists.linaro.org to see what they have to say
(and linaro-uefi, because it's useful information for subscribers of that).
Regards,
Leif
On Tue, Feb 21, 2017 at 08:09:53PM +0000, Evan Lloyd wrote:
> To add to Alexei's comments:
> It seems there is a bug in the newer GCC Pre-processor that messes with the file case.
> (He is currently checking what file system flags might be affecting that, but older versions work fine).
>
> The questions I'd add are:
> Is there someone in Linaro who we might discuss the problem with (on the GCC side)? I think there are Linaro guys involved with it, and they may be able to tell us it is confusion on our part.
> Should we be trying to upstream the fix, or just wait for a new GCC?
>
> Regards,
> Evan
>
>
>
> From: Alexei Fedorov
> Sent: 21 February 2017 16:37
> To: ard.biesheuvel(a)linaro.org; ryan.harkin(a)linaro.org; leif.lindholm(a)linaro.org; Evan Lloyd; Sami Mujawar; Girish Pathak
> Cc: Mitch Ishihara; Alexei Fedorov
> Subject: Problem with building AML file from Dsdt.asl for Juno
>
>
> Hello,
>
>
>
> We are facing a problem when compiling Juno's Dsdt.asl file with the following GCC builds:
>
>
>
> gcc-linaro-5.3.1-2016.05-i686-mingw32_aarch64-elf
>
> gcc-linaro-6.1.1-2016.08-i686-mingw32_aarch64-elf
>
> gcc-linaro-6.2.1-2016.11-i686-mingw32_aarch64-elf
>
> gcc-linaro-6.3.1-2017.02-i686-mingw32_aarch64-elf
>
>
>
> which all show a similar error:
>
>
>
> ...
> Trim --source-code -l -o k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.iiii k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.iii
> "C:\ASL\iasl" -pk:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.aml k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.iiii
> Error 6126 - Input file does not appear to be an ASL or data table source file
> Intel ACPI Component Architecture
> make: *** [Makefile:325: k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\Dsdt.aml] Error -1
>
>
>
> It looks like the problem is with GCC pre-processor running on Dsdt.i file (created after
>
> Trim --asl-file -o k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.i -i k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\inc.lst k:\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\Dsdt.asl
>
> )
>
>
>
> See:
>
>
> "C:\gcc-linaro-6.3.1-2017.02-i686-mingw32_aarch64-elf\bin\aarch64-elf-gcc" -x c -E -include AutoGen.h -Ik:\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables -Ik:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\DEBUG -Ik:\ArmPkg -Ik:\ArmPkg\Include -Ik:\ArmPlatformPkg -Ik:\ArmPlatformPkg\Include -Ik:\ArmPlatformPkg\ArmVExpressPkg -Ik:\ArmPlatformPkg\ArmVExpressPkg\Include -Ik:\ArmPlatformPkg\ArmJunoPkg -Ik:\ArmPlatformPkg\ArmJunoPkg\Include -Ik:\EmbeddedPkg -Ik:\EmbeddedPkg\Include -Ik:\MdePkg -Ik:\MdePkg\Include -Ik:\MdePkg\Include\AArch64 -Ik:\MdeModulePkg -Ik:\MdeModulePkg\Include -Ik:\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTablesk:\Build\ArmJuno\DEBUG_GCC5AARCH64OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.i > k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.iii
>
>
>
> For all GCC versions above, the 1st line of Dsdt.iii lists its name & full path in lowercase:
>
> # 1 "k:\\build\\armjuno\\debug_gcc5\\aarch64\\openplatformpkg\\platforms\\arm\\juno\\acpitables\\acpitables\\output\\dsdt.i"
>
>
>
> Compare it with Dsdt.iii after pre-processing by GCC from gcc-linaro-4.9.4-2017.01-i686-mingw32_aarch64-elf release:
>
> # 1 "k:\\Build\\ArmJuno\\DEBUG_GCC49\\AARCH64\\OpenPlatformPkg\\Platforms\\ARM\\Juno\\AcpiTables\\AcpiTables\\OUTPUT\\.\\Dsdt.i"
>
>
>
> For GCC 5.3.1 & above Dsdt.iiii created by
>
> Trim --source-code -l -o k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.iiii k:\Build\ArmJuno\DEBUG_GCC5\AARCH64\OpenPlatformPkg\Platforms\ARM\Juno\AcpiTables\AcpiTables\OUTPUT\.\Dsdt.iii
>
>
>
> has 0 length, which causes iASL compiler to fail with:
>
> Error 6126 - Input file does not appear to be an ASL or data table source file
>
>
>
> We've got a workaround solution for that problem which involves modification of \BaseTools\Conf\build_rule.template:
>
>
>
> In ASL section:
> [Acpi-Source-Language-File]
> <InputFile>
> ?.asl, ?.Asl, ?.ASL
>
>
>
> by replacing 3 lines as below:
>
>
> <Command.GCC, Command.GCCLD>
> # Trim --asl-file -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i -i $(INC_LIST) ${src}
> # "$(ASLPP)" $(ASLPP_FLAGS) $(INC) -I${s_path} $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i > $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii
> # Trim --source-code -l -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iii
> "$(ASLPP)" $(ASLPP_FLAGS) $(INC) -I${s_path} ${src} > $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.i
> Trim --source-code -l -o $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.iiii $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.I
>
>
>
> Please share your opinion on that matter.
>
>
>
> Alexei.
>
>
>
>
>
>
>
>
>
> IMPORTANT NOTICE: The contents of this email and any attachments are confidential and may also be privileged. If you are not the intended recipient, please notify the sender immediately and do not disclose the contents to any other person, use it for any purpose, or store or copy the information in any medium. Thank you.
=== This Week ===
LLDB ARM/AArch64 hardware breakpoints [TCWG-717] [6/10]
-- Test on Arm hardware and fix issues.
-- Wrote breakpoint command based test-cases for multi-thread tests.
-- Wrote RSP packets based test-cases.
-- Code clean-up, formatting and re basing to latest code.
-- Submit final patch for review after adding tests and arm support.
Initial investigation on LLDB watchpoints set on variables [TCWG-1049] [1/10]
GDB Kernel Awareness [1/10]
-- Looked at STM landing team patches and tried setting up test environment.
LLDB BUD17 Presentation [1/10]
-- Spent some time deciding on content and information gathering.
Miscellaneous Activities [1/10]
-- Meetings, Emails etc.
=== Next Week ===
LLDB ARM/AArch64 hardware breakpoints [TCWG-717]
-- Work on review and up streaming.
LLDB BUD17 Presentation
-- Complete slide deck and submit for review.
GDB Kernel Awareness
-- Test submitted patches and develop understanding of project.
Further investigation on LLDB watchpoints set on variables [TCWG-1049]
1 day in office this week
== Activity ==
[TCWG-617] Range extension thunks
- Reworked patch to finalize dynamic content early and resubmitted for
upstream review
- Investigated what I'll need to do to handle linkerscripts
[BUD17]
Uploaded slide deck
== Plan ==
On holiday till Thursday 1st March
Deal with any last minute Linaro Connect stuff
Continue with Range Extension Thunk work.
== Planned absences ==
Holiday 21st Feb to 1st March
Linaro Connect 6th to 10th March
Euro LLVM 27-28 March
~ Progress ~
* AArch64 OpenOCD. TCWG-947 [4/10]
AArch64 support is merged to mainline. Works with one Hikey I
borrowed from Peter G.
Still doesn't work with mine.
* Upstream patch reviews. [2/10]
** Review Peter B.'s disassembly option patch.
** DWARF implicit_pointer big-endian patch.
** Python event before_prompt patch.
* Off on Thur and Fri. [4/10]
~ Plan ~
* Go to London again on Tue for Schengen visa.
* Back to GDB work, think about SVE GDB patches,
8.0 release, etc.
--
Yao Qi
== This Week ==
* gimplefe (5/10)
- Committed patch to add abs_expr
- Committed patch to fix PR79478
- Committed patch to add fma_expr
- Committed patch to fix ICE's in c_parser_gimple_postfix_expression
- Submitted patch to fix incorrect translation for an invalid
test-case, but decided to drop the
patch after discussing with Richard.
* TCWG-1005 (2/10)
- Formatting fixes
- Patch compiles SPEC2K (not benchmarked)
* PR79588 (1/10)
- Fix discussion with Jakub
* Misc (2/10)
- Meetings
- Connect slides
== Next Week ==
- TCWG-1010, TCWG-1005, gimple-fe
