I’m having trouble with Fossil and Tcl integration. At a high level, I have two main problems:
Problem 1. When I configure Fossil to build as a dynamically linked binary, the
build succeeds and loads the Tcl library. However, when I run a TH1 script that
uses a command requiring Tcl integration (e.g. tclInvoke) it fails.
Problem 2. When I configure Fossil to build as a statically linked binary, the
build either fails or the Fossil crashes when loading the Tcl library.
Here’s a summary of what I’ve tried on a machine running Ubuntu 16.04.
1. I’ve successfully built Fossil with Tcl integration as a dynamically linked
binary using:
./configure --json --with-tcl --with-tcl-stubs --with-tcl-private-stubs
make
I can see that the Tcl library is getting loaded by running ‘fossil version -v’
and getting the following output:
**** Begin 'fossil version -v' output ****
This is fossil version 2.1 [4fa4c0218f] 2017-03-13 01:12:30 UTC
Compiled on Mar 16 2017 17:33:43 using clang-3.8.0 (tags/RELEASE_380/final)
(64-bit)
Schema version 2015-01-24
zlib 1.2.8, loaded 1.2.8
hardened-SHA1 by Marc Stevens and Dan Shumow
SSL (OpenSSL 1.0.2g 1 Mar 2016)
TCL (Tcl 8.6.0, loaded TH_OK: 8.6.5)
USE_TCL_STUBS
FOSSIL_ENABLE_TCL_PRIVATE_STUBS
JSON (API 20120713)
UNICODE_COMMAND_LINE
FOSSIL_DYNAMIC_BUILD
SQLite 3.18.0 2017-03-10 17:03:11 f8560c60d1
SQLITE_ENABLE_DBSTAT_VTAB
SQLITE_ENABLE_FTS3
SQLITE_ENABLE_FTS3_PARENTHESIS
SQLITE_ENABLE_FTS4
SQLITE_ENABLE_FTS5
SQLITE_ENABLE_JSON1
SQLITE_LIKE_DOESNT_MATCH_BLOBS
SQLITE_OMIT_DECLTYPE
SQLITE_OMIT_DEPRECATED
SQLITE_OMIT_LOAD_EXTENSION
SQLITE_OMIT_PROGRESS_CALLBACK
SQLITE_OMIT_SHARED_CACHE
SQLITE_SYSTEM_MALLOC
SQLITE_THREADSAFE=0
SQLITE_USE_ALLOCA
**** End 'fossil version -v' output ****
However, when I try to test a TH1 script that uses a command that requires Tcl
integration, it doesn’t work. For example, I tried this with the following:
fossil test-th-source -th-trace ~/test.th1
Has TCL
TCL Not Ready
TH_ERROR: no such command: tclInvoke
------------------ BEGIN TRACE LOG ------------------
th1-init 0x0 => 0x0<br />
th1-setup {} => TH_OK<br />
[hasfeature tcl] => 1<br />
[tclReady] => 0<br />
------------------- END TRACE LOG -------------------
I’ve included test.th1 in case I’m doing something wrong there. I’ve also tried
the same script from the the Fossil UI page Admin -> TH1. I’ve verified that
Tcl is enabled with 'fossil settings tcl’ which gives the following output:
**** Begin 'fossil settings tcl’ output ****
tcl (local) 1
tcl-setup
**** End 'fossil settings tcl’ output ****
I’m not sure what I’m missing here. If anyone has guidance here, any help would
be appreciated. I’m happy to provide any relevant information that I may be
missing here.
2. To build Fossil as a statically linked binary, I first tried just using the
Tcl stubs that come with Fossil.
./configure --static --json --with-tcl --with-tcl-stubs --with-tcl-private-stubs
After configuring Fossil in this way, the build succeeds. However, Fossil
crashes when loading the Tcl library. For example, Fossil crashes when I run:
./fossil version -v
Segmentation fault (core dumped)
I’ve attached a stack trace of the crash if that’s useful to anyone.
Next, I tried to build Tcl as a static library first and then build Fossil
using that library. I configured and built Tcl 8.6.6 from source with:
./configure --disable-shared
make
sudo make install
Then, configure and build Fossil with:
./configure --static --json --with-tcl=/usr/local
make
The build fails during linking with the following error:
/usr/bin/ld: dynamic STT_GNU_IFUNC symbol `sin' with pointer equality in
`/usr/bin/../lib/gcc/x86_64-linux-gnu/5.4.0/../../../x86_64-linux-gnu/libm.a(s_sin.o)'
can not be used when making an executable; recompile with -fPIE and relink
with -pie
clang: error: linker command failed with exit code 1 (use -v to see invocation)
src/main.mk:591: recipe for target 'fossil' failed
make: *** [fossil] Error 1
Again, if any one has guidance on how to properly build Fossil with Tcl
integration as a statically linked binary, any help would be appreciated.
Thanks,
Ryan
fossil-crash.log
Description: Binary data
test.th1
Description: Binary data
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