[tor-bugs] #6623 [Core Tor/Tor]: --enable-static-tor cannot succeed
Tor Bug Tracker & Wiki
blackhole at torproject.org
Thu Sep 20 01:46:19 UTC 2018
#6623: --enable-static-tor cannot succeed
-------------------------------------------------+-------------------------
Reporter: tmpname0901 | Owner: (none)
Type: defect | Status:
| needs_review
Priority: Medium | Milestone: Tor:
| unspecified
Component: Core Tor/Tor | Version: Tor:
| 0.2.3.20-rc
Severity: Normal | Resolution:
Keywords: tor-relay autotools build link | Actual Points:
static |
Parent ID: | Points:
Reviewer: | Sponsor:
-------------------------------------------------+-------------------------
Changes (by sysrqb):
* status: new => needs_review
Comment:
Okay, I have a branch for this. The reason this was failing is because
library order was partially reversed for linking. There are three
remaining issues that need some clarification. Please see branch `bug6623`
in my public user repo.
However, overall, I wonder if there is any benefit in supporting static
linking at this point. (To be clear, I don't actually have a use for this)
----
The backtrace unit tests fail because the symbols are not shown/available.
This needs further investigation.
Statically linked:
{{{
$ ./src/test/test-bt-cl crash
============================================================ T= 1537399469
Tor died: Caught signal 11
[0x4074c9]
[0x400df8]
[0x400df8]
[0x400e4d]
[0x400e9d]
[0x400eed]
[0x4007d3]
[0x41aac6]
[0x41aec1]
[0x400cca]
Aborted (core dumped)
}}}
{{{
$ ./src/test/test-bt-cl assert
Sep 19 23:25:07.037 [err] tor_assertion_failed_(): Bug:
src/test/test_bt_cl.c:46: crash: Assertion 1 == 0 failed; aborting. (on
Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: Assertion 1 == 0 failed in crash at
src/test/test_bt_cl.c:46. Stack trace: (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x4075a5] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x404294] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x400e29] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x400e4d] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x400e9d] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x400eed] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x4007d3] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x41aac6] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x41aec1] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 19 23:25:07.037 [err] Bug: [0x400cca] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Aborted (core dumped)
}}}
vs. Dynamically linked:
{{{
$ ./src/test/test-bt-cl crash
============================================================ T= 1537404853
Tor died: Caught signal 11
./src/test/test-bt-cl(+0xa2a9)[0x576acdd052a9]
./src/test/test-bt-cl(crash+0x48)[0x576acdcfebd8]
./src/test/test-bt-cl(crash+0x48)[0x576acdcfebd8]
./src/test/test-bt-cl(oh_what+0x1d)[0x576acdcfec2d]
./src/test/test-bt-cl(a_tangled_web+0x1d)[0x576acdcfec7d]
./src/test/test-bt-cl(we_weave+0x1d)[0x576acdcfeccd]
./src/test/test-bt-cl(main+0xa3)[0x576acdcfe9d3]
/lib64/libc.so.6(__libc_start_main+0xea)[0x726f7219d88a]
./src/test/test-bt-cl(_start+0x2a)[0x576acdcfeaaa]
Aborted (core dumped)
}}}
{{{
$ ./src/test/test-bt-cl assert
Sep 20 00:47:26.187 [err] tor_assertion_failed_(): Bug:
src/test/test_bt_cl.c:46: crash: Assertion 1 == 0 failed; aborting. (on
Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: Assertion 1 == 0 failed in crash at
src/test/test_bt_cl.c:46. Stack trace: (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-
cl(log_backtrace_impl+0x45) [0x5b334ff78385] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-
cl(tor_assertion_failed_+0x94) [0x5b334ff75074] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-cl(crash+0x79)
[0x5b334ff71c09] (on Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-cl(oh_what+0x1d)
[0x5b334ff71c2d] (on Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-
cl(a_tangled_web+0x1d) [0x5b334ff71c7d] (on Tor 0.3.5.0-alpha-dev
274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-cl(we_weave+0x1d)
[0x5b334ff71ccd] (on Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-cl(main+0xa3)
[0x5b334ff719d3] (on Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug:
/lib64/libc.so.6(__libc_start_main+0xea) [0x7fcc6186a88a] (on Tor 0.3.5.0
-alpha-dev 274ad5d643e969a6)
Sep 20 00:47:26.188 [err] Bug: ./src/test/test-bt-cl(_start+0x2a)
[0x5b334ff71aaa] (on Tor 0.3.5.0-alpha-dev 274ad5d643e969a6)
Aborted (core dumped)
}}}
----
The util/pwdb unit test is failing because of the static linking (I think)
- see next section, too:
Statically linked:
{{{
$ ./src/test/test util/pwdb
util/pwdb: [forking]
============================================================ T= 1537406368
Tor 0.3.5.0-alpha-dev (git-274ad5d643e969a6) died: Caught signal 11
[0x85d1e9]
/lib64/libnss_systemd.so.2(+0x18f5d)[0x75a3c39bef5d]
/lib64/libnss_systemd.so.2(+0x18f5d)[0x75a3c39bef5d]
/lib64/libnss_systemd.so.2(+0x26d90)[0x75a3c39ccd90]
/lib64/libnss_systemd.so.2(_nss_systemd_getpwnam_r+0x3b0)[0x75a3c39cea50]
[0xab5775]
[0xab53aa]
[0x842f29]
[0x6645c1]
[0x6c0856]
[0x6c0ba1]
[0x6c115c]
[0x407105]
[0xa4dff6]
[0xa4e3f1]
[0x40765a]
[Lost connection!]
[pwdb FAILED]
1/1 TESTS FAILED. (0 skipped)
}}}
vs. Dynamically linked:
{{{
$ ./src/test/test util/pwdb
util/pwdb: [forking] OK
1 tests ok. (0 skipped)
}}}
-----
During linking, the following messages are emitted:
{{{
CCLD src/app/tor
/usr/lib64/libcrypto.a(fips.o): In function `verify_checksums':
(.text+0x4fb): warning: Using 'dlopen' in statically linked applications
requires at runtime the shared libraries from the glibc version used for
linking
src/lib/libtor-fs.a(dir.o): In function `check_private_dir':
/home/user/tor/src/lib/fs/dir.c:216: warning: Using 'getgrgid' in
statically linked applications requires at runtime the shared libraries
from the glibc version used for linking
src/lib/libtor-fs.a(userdb.o): In function `tor_getpwnam':
/home/user/tor/src/lib/fs/userdb.c:80: warning: Using 'getpwnam' in
statically linked applications requires at runtime the shared libraries
from the glibc version used for linking
src/lib/libtor-fs.a(userdb.o): In function `tor_getpwuid':
/home/user/tor/src/lib/fs/userdb.c:110: warning: Using 'getpwuid' in
statically linked applications requires at runtime the shared libraries
from the glibc version used for linking
src/lib/libtor-net.a(resolve.o): In function `tor_addr_lookup':
/home/user/tor/src/lib/net/resolve.c:102: warning: Using 'getaddrinfo' in
statically linked applications requires at runtime the shared libraries
from the glibc version used for linking
/usr/lib64/libcrypto.a(b_sock.o): In function `BIO_gethostbyname':
(.text+0x71): warning: Using 'gethostbyname' in statically linked
applications requires at runtime the shared libraries from the glibc
version used for linking
/home/user/repos/libevent/.libs/libevent.a(evutil.o): In function
`evutil_unparse_protoname':
/home/user/repos/libevent/evutil.c:911: warning: Using 'getprotobynumber'
in statically linked applications requires at runtime the shared libraries
from the glibc version used for linking
/home/user/repos/libevent/.libs/libevent.a(evutil.o): In function
`evutil_parse_servname':
/home/user/repos/libevent/evutil.c:883: warning: Using 'getservbyname' in
statically linked applications requires at runtime the shared libraries
from the glibc version used for linking
}}}
----
I configured and tested the branch with:
{{{
$ ./autogen.sh && ./configure --disable-asciidoc --enable-pic --enable-
android --enable-fatal-warnings --enable-static-openssl --with-ssl-
dir=/usr/lib64 --enable-static-zlib --with-zlib-dir=/usr/lib64 --enable-
static-libevent --with-libevent-dir=../libevent/.libs --enable-static-tor
}}}
On Fedora I installed openssl-static, zlib-static, glibc-static. I
compiled libevent (release-2.1.8-stable) from source.
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6623#comment:18>
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