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arm-none-eabi-gdb -tui segfault - what do I do?

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szatox
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arm-none-eabi-gdb -tui segfault - what do I do?

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Post by szatox » Wed Aug 21, 2019 7:50 pm

I returned to coding my fun project after a long break to discover that my arm debugger stopped working when I wasn't paying attention.
I'm building gcc 9.2 right now to check if it persists, but I could probably use some tips on fixing this stuff even if 9.2 turns out to just work once the built is finished.
Any ideas what should I do?


I started strace just before hitting Enter on this command:

Code: Select all

$ arm-none-eabi-gdb
GNU gdb (Gentoo 8.3 vanilla) 8.3
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "--host=x86_64-pc-linux-gnu --target=arm-none-eabi".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://bugs.gentoo.org/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) tui enable
Segmentation fault

Code: Select all

strace: Process 8336 attached
restart_syscall(<... resuming interrupted restart_syscall ...>) = 1
rt_sigprocmask(SIG_BLOCK, [HUP INT QUIT ALRM TERM TSTP TTIN TTOU], [], 8) = 0
rt_sigaction(SIGINT, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x55f2e038a420, sa_mask=[INT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x55f2e038a460, sa_mask=[TERM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGHUP, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x55f2e038a320, sa_mask=[HUP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x55f2e038a340, sa_mask=[QUIT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTSTP, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTTOU, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTTIN, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, NULL, [], 8)  = 0
pselect6(1, [0], NULL, NULL, NULL, {[], 8}) = 1 (in [0])
read(0, "\r", 1)                        = 1
write(1, "\n", 1)                       = 1
ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo ...}) = 0
rt_sigaction(SIGINT, {sa_handler=0x55f2e038a420, sa_mask=[INT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTERM, {sa_handler=0x55f2e038a460, sa_mask=[TERM], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGHUP, {sa_handler=0x55f2e038a320, sa_mask=[HUP], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGQUIT, {sa_handler=0x55f2e038a340, sa_mask=[QUIT], sa_flags=SA_RESTORER|SA_RESTART, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGALRM, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTSTP, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTTOU, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
rt_sigaction(SIGTTIN, {sa_handler=SIG_DFL, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, {sa_handler=0x7fa103306fa0, sa_mask=[], sa_flags=SA_RESTORER, sa_restorer=0x7fa102f80e90}, 8) = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
stat("/home/myuser/.terminfo", 0x55f2e0a98f10) = -1 ENOENT (No such file or directory)
stat("/etc/terminfo", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("/usr/share/terminfo", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
access("/etc/terminfo/x/xterm", R_OK)   = 0
openat(AT_FDCWD, "/etc/terminfo/x/xterm", O_RDONLY) = 11
fstat(11, {st_mode=S_IFREG|0644, st_size=3617, ...}) = 0
read(11, "\32\0010\0&\0\17\0\235\1\270\5xterm|xterm terminal"..., 4096) = 3617
read(11, "", 4096)                      = 0
close(11)                               = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=84, ws_col=239, ws_xpixel=0, ws_ypixel=0}) = 0
ioctl(1, TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(1, TIOCGWINSZ, {ws_row=84, ws_col=239, ws_xpixel=0, ws_ypixel=0}) = 0
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=0xc8} ---
+++ killed by SIGSEGV +++
Emerge --info:

Code: Select all

 $ emerge --info =cross-arm-none-eabi/gdb-8.3
Portage 2.3.69 (python 2.7.15-final-0, default/linux/amd64/17.0/desktop, gcc-8.3.0, glibc-2.29-r2, 4.14.83-gentoo x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-4.14.83-gentoo-x86_64-AMD_A8-3870_APU_with_Radeon-tm-_HD_Graphics-with-gentoo-2.6
KiB Mem:     7636096 total,   2011240 free
KiB Swap:   10485756 total,  10485756 free
Timestamp of repository gentoo: Wed, 21 Aug 2019 01:00:01 +0000
Head commit of repository gentoo: 96714bf699cd959dae9bf1a906475fed36728869
Timestamp of repository palemoon: Mon, 19 Aug 2019 21:06:12 +0000
Head commit of repository palemoon: 455c0fd1c38a0714b0703f4af428eefdb78fecd9

Timestamp of repository ring-overlay: Fri, 16 Aug 2019 18:38:06 +0000
Head commit of repository ring-overlay: be7adcad6cf3a8a0d1829adc8c44cacfbdb388de

sh bash 4.4_p23-r1
ld GNU ld (Gentoo 2.32 p2) 2.32.0
distcc 3.3.2 x86_64-pc-linux-gnu [disabled]
app-shells/bash:          4.4_p23-r1::gentoo
dev-java/java-config:     2.2.0-r4::gentoo
dev-lang/perl:            5.28.2-r1::gentoo
dev-lang/python:          2.7.15::gentoo, 3.6.5::gentoo
dev-util/cmake:           3.14.6::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.6-r1::gentoo
sys-apps/openrc:          0.41.2::gentoo
sys-apps/sandbox:         2.13::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r4::gentoo
sys-devel/automake:       1.11.6-r3::gentoo, 1.15.1-r2::gentoo, 1.16.1-r1::gentoo
sys-devel/binutils:       2.32-r1::gentoo
sys-devel/gcc:            7.3.0-r3::gentoo, 8.3.0-r1::gentoo
sys-devel/gcc-config:     2.0::gentoo
sys-devel/libtool:        2.4.6-r3::gentoo
sys-devel/make:           4.2.1-r4::gentoo
sys-kernel/linux-headers: 4.19::gentoo (virtual/os-headers)
sys-libs/glibc:           2.29-r2::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-metamanifest: yes
    sync-rsync-extra-opts: 
    sync-rsync-verify-max-age: 24

crossdev
    location: /usr/local/portage
    masters: gentoo palemoon
    priority: 0

palemoon
    location: /var/db/repos/palemoon
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/palemoon.git
    masters: gentoo

ring-overlay
    location: /var/db/repos/ring-overlay
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/ring-overlay.git
    masters: gentoo

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=native -mcx16 -mpopcnt -fomit-frame-pointer"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/lib64/libreoffice/program/sofficerc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -pipe -march=native -mcx16 -mpopcnt -fomit-frame-pointer"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--jobs=6 --load-average=4"
ENV_UNSET="DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs binpkg-multi-instance config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch pid-sandbox preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="pl_PL.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5 -l4"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/tmp/"
USE="3dnow 3dnowext 3dnowprefetch X a52 aac abm acl acpi alsa amd64 aperfmperf apic arat avahi berkdb bluetooth branding bzip2 cairo cdda cdr clflush cli cmov cmp_legacy consolekit constant_tsc cr8_legacy crossdev crypt cups cx16 cx8 cxx d3d9 dbus de dirac dri dts dvb dvd dvdr emboss encode exif extapic extd_apicid fam fcoe fcp ffmpeg flac fortran fpu fxsr fxsr_opt galera gbm gdbm gif glamor gpm gtk ht hw_pstate ibs iconv icu imagemagick infiniband introspection ipv6 iscsi jingle jpeg jpeg2k lahf_lm lbrv lcms libaa libcaca libmpeg2 libnotify libtirpc lm lvm mad mca mce mdnsresponder-compat misalignsse mmx mmxext mng monitor mp3 mp4 mpeg msr mtrr multilib ncurses nls nonstop_tsc nopl npt nptl nrip_save nx ogg openal opencl opengl openh264 openmp osmesa osvw otr pae pam pango pat pausefilter pcre pdf pdpe1gb pge png pni policykit popcnt ppds pse pse36 rdma rdtscp readline rep_good sdl seccomp sep skinit smp spell spice split-usr sse sse2 sse3 sse4a ssl sst-mariabackup startup-notification svg svm svm_lock syscall tcpd test-programs theora tiff truetype tsc udev udisks unicode upower usb v4l video vme vmmcall vorbis wdt wxwidgets x264 xcb xml xv xvid zeroconf zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm 3dnowext 3dnow constant_tsc rep_good nopl nonstop_tsc extd_apicid aperfmperf pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt arat hw_pstate npt lbrv svm_lock nrip_save pausefilter vmmcall 3dnow 3dnowext mmx mmxext popcnt sse sse2 sse3 sse4a" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="evdev wacom" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" NETBEANS_MODULES="apisupport cnd groovy gsf harness ide identity j2ee java mobility nb php profiler soa visualweb webcommon websvccommon xml" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_6" PYTHON_TARGETS="python2_7 python3_6" QEMU_SOFTMMU_TARGETS="x86_64" QEMU_USER_TARGETS="arm" RUBY_TARGETS="ruby24 ruby25" USERLAND="GNU" VIDEO_CARDS="radeon r600" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

=================================================================
                        Package Settings
=================================================================

cross-arm-none-eabi/gdb-8.3::crossdev was built with the following:
USE="client nls python server xml -lzma -multitarget -source-highlight -test -vanilla" ABI_X86="(64)" PYTHON_SINGLE_TARGET="python3_6 -python2_7 -python3_5 -python3_7" PYTHON_TARGETS="python2_7 python3_6 -python3_5 -python3_7"
Edit: I missed the fact, that there is only one version of gdb in portage. Silly me.
Makes getting this one to work more important.
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szatox
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Posts: 3858
Joined: Tue Aug 27, 2013 12:35 pm

  • Quote

Post by szatox » Sat Aug 24, 2019 2:23 pm

Heh.... Never mind.
After rebuilding with a different set of use flags it started to work again.
So I rebuilt it with the original set of flags again. And it's still working.

No idea what was wrong and why rebuilding with the same flags didn't fix it. Actuallly, I also rebuilt quite a lot of dependencies on the first attempt, thinking that maybe I updated something without repairing gdb and that broke it. Either way: back to coding
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