Hi,
I found that the bare-metal toolchains for aarch64 from Linaro could not seem
to link objects to generate executable files successfully.
====================
Toolchain:
https://releases.linaro.org/components/toolchain/binaries/7.3-2018.05/aarch…
====================
Testcase:
> cat test.c
#include <stdio.h>
int main(int argc, char* argv[])
{
printf("Hello World!\n");
return 0;
}
> aarch64-elf-gcc -o test test.c
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/crt0.o: In function `_start':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/libgloss/aarch64/crt0.S:148: undefined reference to `initialise_monitor_handles'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-exit.o): In function `exit':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/stdlib/exit.c:70: undefined reference to `_exit'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-sbrkr.o): In function `_sbrk_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/sbrkr.c:58: undefined reference to `_sbrk'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-writer.o): In function `_write_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/writer.c:58: undefined reference to `_write'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-closer.o): In function `_close_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/closer.c:53: undefined reference to `_close'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-lseekr.o): In function `_lseek_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/lseekr.c:58: undefined reference to `_lseek'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-readr.o): In function `_read_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/readr.c:58: undefined reference to `_read'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-fstatr.o): In function `_fstat_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/fstatr.c:62: undefined reference to `_fstat'
.../gcc-linaro-7.3.1-2018.05-x86_64_aarch64-elf/bin/../aarch64-elf/libc/usr/lib/libc.a(lib_a-isattyr.o): In function `_isatty_r':
/home/tcwg-buildslave/workspace/tcwg-make-release/builder_arch/amd64/label/tcwg-x86_64-build/target/aarch64-elf/snapshots/newlib.git~linaro-local~linaro-newlib-2_5_0/newlib/libc/reent/isattyr.c:58: undefined reference to `_isatty'
collect2: error: ld returned 1 exit status
In addition, there was the same bug in 7.4.1-2019.02 version, but not in arm-eabi
or armeb-eabi.
Is there anyone fixing this?
Thanks,
Junling
== Progress ==
* Short week
- Annual Leave 2 days
- Public Holiday 1 day (Australia day)
*SVE ACLE
- Revised remaining ACLE patches
- svbic revised and reviewed
* Auto Vectorizer
- Looking at auto vectorisation SVE
== Plan ==
* SVE ACLE
* Look at PR88834
[VIRT-294 # ARMv8.3-PAuth, Pointer Authentication ]
Fixed HCR/SCR enablement of API/APK.
Posted v2 of the prctl.
[VIRT-339 # ARMv8.5-BTI, Branch Target Identification ]
Posted v2.
[VIRT-327 # Richard's upstream QEMU work ]
Implemented variable-length decoding in scripts/decodetree.py.
Lots of fiddling about with the RX ISA to understand what was
actually needed within decodetree.
Pull request for vector extensions and dynamic tlb sizing.
Finished MPS review.
r~
Upstream Work ([VIRT-109])
==========================
- need to finish the re-work of [system test and misc arch] tests
:todo
- will be useful for test cases for plugins
- also more test cases queued up for system tests
- posted userspace CPUID access patches Message-Id:
<20190128173940.25813-1-alex.bennee(a)linaro.org>
- spent some time debugging PAuth kernel boot regression
- rth posted a fix for the regression Message-Id:
<20190129143511.12311-1-richard.henderson(a)linaro.org>
Other Tasks
===========
- rebuilt Zen after the /home SSD failed
- fortunately the backup drive had all the work in progress source
code
- moved to Debian Buster while I'm at it
- need to regenerate my images and foundation/FVP setup
- and realise quite how many tweaks I had baked into the old system
Completed Reviews [2/2]
=======================
{Qemu-devel} {PATCH 00/11} Enable build and install of our rST docs
Message-Id: <20190201145035.22739-1-peter.maydell(a)linaro.org>
{RFC PATCH 0/3} lm32: convert to new common tcg infrastructure
Message-Id: <20190131215611.29341-1-michael(a)walle.cc>
Absences
========
- Connect BKK19 (1-5th April 2019)
- holiday after Connect
Current Review Queue
====================
* {PATCH v2 00/18} OpenBSD: Enable qtesting
Message-Id: <20190129175403.18017-1-philmd(a)redhat.com>
* {PATCH v11 00/25} Fixing record/replay and adding reverse debugging
Message-Id: <20190131131520.23264.75724.stgit@pasha-VirtualBox>
* {RFC v2 00/38} Plugin support
Message-Id: <20181209193749.12277-1-cota(a)braap.org>
* {RFC} arm: Allow system registers for KVM guests to be changed by QEMU code
Message-Id: <20181206151401.13455-1-peter.maydell(a)linaro.org>
* {Qemu-devel} {PATCH v3 0/4} tcg: support heterogenous CPU clusters
Message-Id: <20190121152218.9592-1-peter.maydell(a)linaro.org>
* {Qemu-devel} {PATCH RFC 00/11} Add Renesas RX archtecture
Message-Id: <20190121131602.55003-1-ysato(a)users.sourceforge.jp>
--
Alex Bennée
Progress:
* VIRT-65 [QEMU upstream maintainership]
+ got the "use Sphinx for documentation" patchset to a point where I
think we could plausibly commit it to master; sent out for review
+ two arm pull requests
+ sent patches fixing decode errors for FCMLA
* VIRT-268 [QEMU support for dual-core Cortex-M Musca board]
+ AN521 model is now in upstream QEMU
thanks
-- PMM
== Progress ==
* FDPIC
- (GNU-411) GDB: debugging problems with FDPIC support.
* GCC upstream validation:
- reported a few regressions
- dealing with some random results, still
- qemu-3.1: switched to it this week
* GCC:
- (GNU-99) rebased ubsan / bare-metal patches. No progress.
- minor testsuite fixes
* misc (conf-calls, meetings, emails, ....)
- reviewing/submitted infra script patches
- debugging new benchmarking round-robin jobs
== Next ==
FDPIC:
- GCC: handle feedback on v4 patches
- GDB: update patches
- uclibc-ng: look at how to test fdpic mode with openadk
Infra:
- benchmarking jobs
== Progress ==
* Out of office on Friday
* [Thumb GlobalISel] Support divisions [LLVM-516]
- Committed upstream
* [Thumb GlobalISel] Support G_GEP [LLVM-532]
- Ready to commit next week
* LLVM 8.0.0 Release for ARM & AArch64 [LLVM-526]
- Posted binaries for rc1
- Created a bug report for a MSan failure on AArch64
* Use new version of GCC on buildbots [LLVM-515]
- Ready to use in production
== Plan ==
* More GlobalISel
* Patch up the Jenkins release job [LLVM-533]
== Progress ==
* FDPIC
- (GNU-411) GDB: debugging problems with FDPIC support.
* GCC upstream validation:
- reported a few regressions
- dealing with some random results, still
- qemu-3.1: plan to switch to it this week
* GCC:
- (GNU-99) rebased ubsan / bare-metal patches. No progress.
- minor testsuite fixes
* misc (conf-calls, meetings, emails, ....)
- reviewing/submitted infra script patches
- experimenting with new build servers
- started looking at new benchmarking round-robin jobs
== Next ==
FDPIC:
- GCC: handle feedback on v4 patches
- GDB: update patches
- uclibc-ng: look at how to test fdpic mode with openadk