CPP='sparc-unknown-linux-gnu-gcc -E -x c-header' /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/elf/ld-linux.so.2 --library-path /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/math:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/elf:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/dlfcn:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/nss:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/nis:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/rt:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/resolv:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/crypt:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/nptl /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/sunrpc/rpcgen -Y ../scripts -h rpcsvc/rstat.x -o /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/sunrpc/rpcsvc/rstat.T ISE:_do_ptrace ptrace(PTRACE_PEEKDATA, ..., 0x00000004, 0x00000000): Input/output error /usr/lib/libsandbox.so[0x7003b570] /usr/lib/libsandbox.so[0x7003d608] /usr/lib/libsandbox.so[0x7003d6a8] /usr/lib/libsandbox.so[0x7003e038] /usr/lib/libsandbox.so[0x70040f60] /usr/lib/libsandbox.so(execve+0x40)[0x70041300] /bin/sh(shell_execve+0x10)[0x3be30] /bin/sh[0x41a04] /bin/sh(execute_command_internal+0xc18)[0x3dff8] /bin/sh(parse_and_execute+0x214)[0x7f734] /proc/12432/cmdline: /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/elf/ld-linux.so.2 --library-path /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/math:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/elf:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/dlfcn:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/nss:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/nis:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/rt:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/resolv:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/crypt:/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/nptl /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/sunrpc/rpcgen -Y ../scripts -h rpcsvc/rstat.x -o /var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/sunrpc/rpcsvc/rstat.T make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/build-sparc32-sparc-unknown-linux-gnu-nptl/sunrpc/rpcsvc/rstat.stmp] Aborted make[2]: Leaving directory `/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/glibc-2.9-20081201/sunrpc' make[1]: *** [sunrpc/others] Error 2 make[1]: Leaving directory `/var/tmp/portage/sys-libs/glibc-2.9_p20081201-r2/work/glibc-2.9-20081201' make: *** [all] Error 2 * * ERROR: sys-libs/glibc-2.9_p20081201-r2 failed. * Call stack: * ebuild.sh, line 49: Called src_compile Works fine with sandbox-2.1
i havent quite been able to figure out why it's failing yet. it ptraces an open() call and when trying to read the file name in question, the register has a value of 4 instead of an address to a string. trying to debug with simpler ptrace tools hasnt yielded insight yet :/
No hurry Mike, i've marked it -sparc meanwhile :)
ive just disabled sparc ptrace for now http://git.overlays.gentoo.org/gitweb/?p=proj/sandbox.git;a=commitdiff;h=afc1421f1e629c28ae6fb3d71f08a7baffde8f42
Getting this on amd64 with Funtoo's glibc-2.10.1-r1 and sandbox enabled - does it seem to be the same thing? : sandbox-2.3-r1. nu-nptl/crypt:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/nptl /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcgen -Y ../scripts -h rpcsvc/rex.x -o /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc/rex.T .././scripts/mkinstalldirs /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc touch /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/xklm_prot.stmp touch /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc/nlm_prot.stmp touch /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc/bootparam_prot.stmp /usr/lib/libsandbox.so[0x2b95bbefe852] /usr/lib/libsandbox.so[0x2b95bbefe8c3] /usr/lib/libsandbox.so[0x2b95bbf005bf] /usr/lib/libsandbox.so[0x2b95bbf00b69] /usr/lib/libsandbox.so[0x2b95bbf018cc] /usr/lib/libsandbox.so(execve+0x4f)[0x2b95bbf02bcf] /bin/sh(shell_execve+0x33)[0x42fcd3] touch /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc/klm_prot.stmp /bin/sh[0x434fe5] /bin/sh(execute_command_internal+0xb97)[0x431cf7] /bin/sh(parse_and_execute+0x1ca)[0x46d53a] /proc/4378/cmdline: /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/elf/ld-linux.so.2 --library-path /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/math:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/elf:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/dlfcn:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/nss:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/nis:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/rt:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/resolv:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/crypt:/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/nptl /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcgen -Y ../scripts -h rpcsvc/yppasswd.x -o /var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc/yppasswd.T make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.10.1-r1/work/build-x86-x86_64-pc-linux-gnu-nptl/sunrpc/rpcsvc/yppasswd.stmp] Aborted make[2]: *** Waiting for unfinished jobs....
if the arch isnt sparc, then it isnt the same bug
after doing a bit more testing, the ptrace code isn't quite that useful. we can't inject errors and cancel syscalls at all -- see linked URL. we can detect the bad syscall and kill the process, but that's not what we do for other targets normally.
my kernel hack for canceling syscalls turned into a real fix and was merged for linux-4.5, so we should be good to go on that front. i revisited the code in general for fun now that we have a fast sparc64 box and got it working on 64-bit too. all tests pass for 32-bit & 64-bit, and with the main loop overhaul, i'm going to try to re-enable this for sparc.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/proj/sandbox.git/commit/?id=f3b7a388d49383e092e7c09d514b698db644bb20 commit f3b7a388d49383e092e7c09d514b698db644bb20 Author: Mike Frysinger <vapier@gentoo.org> AuthorDate: 2021-10-25 05:52:29 +0000 Commit: Mike Frysinger <vapier@gentoo.org> CommitDate: 2021-10-25 05:52:29 +0000 libsandbox: port ptrace to sparc64 & re-enable for sparc Now that we have a real dev system & userland running sparc64, port the logic to it and make sure tests pass on 32-bit & 64-bit. Hopefully the trace main loop rewrite to avoid signals should address the instability issues we saw. Closes: https://bugs.gentoo.org/293632 Signed-off-by: Mike Frysinger <vapier@gentoo.org> README.md | 1 + libsandbox/trace/linux/sparc.c | 18 +++++++++++------- 2 files changed, 12 insertions(+), 7 deletions(-) Additionally, it has been referenced in the following commit(s): https://gitweb.gentoo.org/proj/sandbox.git/commit/?id=c1dc899d4cdece095925e2391aefce3b0ad3785f commit c1dc899d4cdece095925e2391aefce3b0ad3785f Author: Mike Frysinger <vapier@gentoo.org> AuthorDate: 2021-10-25 05:58:19 +0000 Commit: Mike Frysinger <vapier@gentoo.org> CommitDate: 2021-10-25 05:58:19 +0000 libsandbox: add sparc personality support This allows tracing of sparc32 in a sparc64 multilib setup. Although it doesn't quite work -- the syscall table needs to be reloaded after the exec commits. We leave that out for now since there isn't actually a sparc32+sparc64 multilib port currently. Bug: https://bugs.gentoo.org/293632 Signed-off-by: Mike Frysinger <vapier@gentoo.org> TODO | 3 ++ configure.ac | 4 +++ libsandbox/trace/linux/sparc.c | 70 ++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 77 insertions(+)
