make

[littleforce163]

when I build with make I found an error. Any more dependencies required? Please advice. Thanks.
The OS is Ubuntu 18.04, AMD64.

[ 77%] Linking C executable lwan

$ make
Scanning dependencies of target bin2hex
[  1%] Building C object src/bin/tools/CMakeFiles/bin2hex.dir/bin2hex.c.o
[  2%] Linking C executable bin2hex
[  2%] Built target bin2hex
[  3%] Bundling auto-index icons
[  3%] Built target generate_auto_index_icons
Scanning dependencies of target mimegen
[  4%] Building C object src/bin/tools/CMakeFiles/mimegen.dir/mimegen.c.o
[  6%] Building C object src/bin/tools/CMakeFiles/mimegen.dir/__/__/lib/hash.c.o
[  7%] Building C object src/bin/tools/CMakeFiles/mimegen.dir/__/__/lib/murmur3.c.o
[  8%] Building C object src/bin/tools/CMakeFiles/mimegen.dir/__/__/lib/missing.c.o
[  9%] Linking C executable mimegen
[  9%] Built target mimegen
[ 10%] Building MIME type table
[ 10%] Built target generate_mime_types_table
Scanning dependencies of target lwan-static
[ 12%] Building C object src/lib/CMakeFiles/lwan-static.dir/base64.c.o
[ 13%] Building C object src/lib/CMakeFiles/lwan-static.dir/hash.c.o
[ 14%] Building C object src/lib/CMakeFiles/lwan-static.dir/int-to-str.c.o
[ 15%] Building C object src/lib/CMakeFiles/lwan-static.dir/list.c.o
[ 16%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-array.c.o
[ 18%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan.c.o
[ 19%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-cache.c.o
[ 20%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-config.c.o
[ 21%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-coro.c.o
[ 22%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-http-authorize.c.o
[ 24%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-io-wrappers.c.o
[ 25%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-job.c.o
[ 26%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-mod-redirect.c.o
[ 27%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-mod-response.c.o
[ 28%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-mod-rewrite.c.o
[ 30%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-mod-serve-files.c.o
[ 31%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-readahead.c.o
/cython-lwan-master/lwan/src/lib/lwan-readahead.c: In function ‘lwan_readahead_shutdown’:
/cython-lwan-master/lwan/src/lib/lwan-readahead.c:84:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
     write(readahead_pipe_fd[1], &cmd, sizeof(cmd));
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/cython-lwan-master/lwan/src/lib/lwan-readahead.c: In function ‘lwan_readahead_queue’:
/cython-lwan-master/lwan/src/lib/lwan-readahead.c:103:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
     write(readahead_pipe_fd[1], &cmd, sizeof(cmd));
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/cython-lwan-master/lwan/src/lib/lwan-readahead.c: In function ‘lwan_madvise_queue’:
/cython-lwan-master/lwan/src/lib/lwan-readahead.c:117:5: warning: ignoring return value of ‘write’, declared with attribute warn_unused_result [-Wunused-result]
     write(readahead_pipe_fd[1], &cmd, sizeof(cmd));
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 32%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-request.c.o
[ 33%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-response.c.o
[ 34%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-socket.c.o
[ 36%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-status.c.o
[ 37%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-straitjacket.c.o
[ 38%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-strbuf.c.o
[ 39%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-tables.c.o
[ 40%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-template.c.o
[ 42%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-thread.c.o
/cython-lwan-master/lwan/src/lib/lwan-thread.c: In function ‘accept_nudge’:
/cython-lwan-master/lwan/src/lib/lwan-thread.c:356:5: warning: ignoring return value of ‘read’, declared with attribute warn_unused_result [-Wunused-result]
     (void)read(pipe_fd, &event, sizeof(event));
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 43%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-time.c.o
[ 44%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-tq.c.o
[ 45%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-trie.c.o
[ 46%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-websocket.c.o
[ 48%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-pubsub.c.o
[ 49%] Building C object src/lib/CMakeFiles/lwan-static.dir/missing.c.o
[ 50%] Building C object src/lib/CMakeFiles/lwan-static.dir/missing-pthread.c.o
[ 51%] Building C object src/lib/CMakeFiles/lwan-static.dir/murmur3.c.o
[ 53%] Building C object src/lib/CMakeFiles/lwan-static.dir/patterns.c.o
[ 54%] Building C object src/lib/CMakeFiles/lwan-static.dir/queue.c.o
[ 55%] Building C object src/lib/CMakeFiles/lwan-static.dir/realpathat.c.o
[ 56%] Building C object src/lib/CMakeFiles/lwan-static.dir/sd-daemon.c.o
[ 57%] Building C object src/lib/CMakeFiles/lwan-static.dir/sha1.c.o
[ 59%] Building C object src/lib/CMakeFiles/lwan-static.dir/timeout.c.o
[ 60%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-lua.c.o
[ 61%] Building C object src/lib/CMakeFiles/lwan-static.dir/lwan-mod-lua.c.o
[ 62%] Linking C static library liblwan.a
[ 62%] Built target lwan-static
Scanning dependencies of target lwan-shared
[ 63%] Building C object src/lib/CMakeFiles/lwan-shared.dir/__/__/empty.c.o
[ 65%] Linking C shared library liblwan.so
[ 65%] Built target lwan-shared
Scanning dependencies of target configdump
[ 66%] Building C object src/bin/tools/CMakeFiles/configdump.dir/configdump.c.o
[ 67%] Building C object src/bin/tools/CMakeFiles/configdump.dir/__/__/lib/lwan-config.c.o
[ 68%] Building C object src/bin/tools/CMakeFiles/configdump.dir/__/__/lib/lwan-status.c.o
[ 69%] Building C object src/bin/tools/CMakeFiles/configdump.dir/__/__/lib/lwan-strbuf.c.o
[ 71%] Building C object src/bin/tools/CMakeFiles/configdump.dir/__/__/lib/hash.c.o
[ 72%] Building C object src/bin/tools/CMakeFiles/configdump.dir/__/__/lib/murmur3.c.o
[ 73%] Building C object src/bin/tools/CMakeFiles/configdump.dir/__/__/lib/missing.c.o
[ 74%] Linking C executable configdump
[ 74%] Built target configdump
Scanning dependencies of target lwan
[ 75%] Building C object src/bin/lwan/CMakeFiles/lwan.dir/main.c.o
[ 77%] Linking C executable lwan
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0xf0): undefined reference to `.L1997'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0xf8): undefined reference to `.L1998'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x100): undefined reference to `.L1999'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x108): undefined reference to `.L2000'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x110): undefined reference to `.L2001'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x118): undefined reference to `.L2002'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x120): undefined reference to `.L2003'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x128): undefined reference to `.L2004'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x130): undefined reference to `.L2005'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x138): undefined reference to `.L2006'
/tmp/ccZho59s.ltrans1.ltrans.o:(.data.rel.ro.local+0x140): undefined reference to `.L2007'
collect2: error: ld returned 1 exit status
src/bin/lwan/CMakeFiles/lwan.dir/build.make:96: recipe for target 'src/bin/lwan/lwan' failed
make[2]: *** [src/bin/lwan/lwan] Error 1
CMakeFiles/Makefile2:491: recipe for target 'src/bin/lwan/CMakeFiles/lwan.dir/all' failed
make[1]: *** [src/bin/lwan/CMakeFiles/lwan.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2

I paste cmake, too.

$ cmake .. -DCMAKE_BUILD_TYPE=Release
-- Running CMake for lwan (Scalable, high performance, experimental web server)
-- Building with Lua support using luajit-5.1
-- Using built-in context switching routines for x86_64 processors
-- Valgrind headers not found -- disabling valgrind support
-- Using Brotli for mimegen
-- Found MySQL includes at /usr/include/mysql
-- Not building benchmark suite: database libraries not found.
-- Configuring done
-- Generating done
-- Build files have been written to: /cython-lwan-master/lwan/build

[lpereira]

I don't know what's the issue here. I don't have a Ubuntu 18.04 environment setup here to test this right now. Can you do me a favor and see if you can build a Debug build? (Use a different build directory or at least remove CMakeCache.txt from the build directory you used for the Release build.)

[kmx2]

I have met the same problem. OS is Ubuntu 16.04.

[kmx2]

using Debug option has no problem. Why?

[lpereira]

I don't know exactly what's going on here; the error seems to stem from the usage of a link-time flag enabling a read-only GOT (which is enabled for both Debug and Release builds), but since it's enabled for both builds, it might be a clash with something that's enabled only in Release builds. My money is in LTO.

I might install a Ubuntu 18.04 VM here to experiment with this. No promises, though, as I'm taking a sabbatical from open source work; however, if I end up doing this, these are some of the things I'm going to try:

• Use the gold linker instead: passing -DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=gold to CMake
• Build with clang by setting the CC=clang environment variable before invoking CMake
• Maybe try modifying CMakeLists.txt and seeing if removing options to enable the read-only GOT, building without a PLT, or things like this, will affect the outcome.

[pythonmcpi]

I'm getting the exact same error when building on a Raspberry Pi 3B+, Raspbian (not a fresh install)
(Raspberry Pi is ARMv7 I think)
The same error happens with both Release and RelWithDebugInfo, but lwan builds fine with Debug