我認爲最近發生了一些變化。GnuCOBOL未能找到動態符號,僅在最近的Ubuntu上
GnuCOBOL依靠動態鏈接,在運行時用dlsym查找符號。這個CALL運行時支持代碼現在在OpenCOBOL已經有7年了。它不再適用於Ubuntu 14.04,但在Fedora 19/20下運行。
LDD不再示出了使用-l
例如作爲測試任何庫中列出的,Ubuntu 14.04.1
以下COBOL程序
identification division.
program-id. simple.
procedure division.
call "gtk_init" using
by value 0
by reference null
returning omitted
end-call
goback.
end program simple.
$ cobc -x -v -lgtk-3 simple.cob
preprocessing simple.cob into /tmp/cob710_0.cob
parsing /tmp/cob710_0.cob (simple.cob)
Return status: 0
translating /tmp/cob710_0.cob into /tmp/cob710_0.c (simple.cob)
gcc -pipe -c -I/usr/local/include -Wno-unused -fsigned-char -Wno-pointer-sign -o "/tmp/cob710_0.o" "/tmp/cob710_0.c"
gcc -pipe -Wl,--export-dynamic -o simple /tmp/cob710_0.o -L/usr/local/lib -lcob -lm -lgmp -lncurses -ldb -ldl -l"gtk-3"
二進制具有NO指示libgtk -3.so正在混合中。
./simple
libcob: Cannot find module 'gtk_init'
$ ldd simple
linux-vdso.so.1 => (0x00007fff2c9fe000)
libcob.so.1 => /usr/local/lib/libcob.so.1 (0x00007f2549b06000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2549740000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f2549439000)
libgmp.so.10 => /usr/lib/x86_64-linux-gnu/libgmp.so.10 (0x00007f25491c5000)
libncurses.so.5 => /lib/x86_64-linux-gnu/libncurses.so.5 (0x00007f2548fa2000)
libtinfo.so.5 => /lib/x86_64-linux-gnu/libtinfo.so.5 (0x00007f2548d78000)
libdb-5.3.so => /usr/lib/x86_64-linux-gnu/libdb-5.3.so (0x00007f25489d6000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f25487d2000)
/lib64/ld-linux-x86-64.so.2 (0x00007f2549d56000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f25485b3000)
,然後在Fedora 20,同一版本的編譯器(內置略有不同,尋找ncursesw而不是ncurses的 - 假設這是手頭沒有問題的一部分)
$ cobc -x -v -lgtk-3 simple.cob
Command line: cobc -x -v -lgtk-3 simple.cob
Preprocessing: simple.cob -> /tmp/cob20658_0.cob
Return status: 0
Parsing: /tmp/cob20658_0.cob (simple.cob)
Return status: 0
Translating: /tmp/cob20658_0.cob -> /tmp/cob20658_0.c (simple.cob)
Executing: gcc -std=gnu99 -c -I/usr/local/include -pipe -Wno-unused
-fsigned-char -Wno-pointer-sign -o "/tmp/cob20658_0.o"
"/tmp/cob20658_0.c"
Return status: 0
Executing: gcc -std=gnu99 -Wl,--export-dynamic -o "simple"
"/tmp/cob20658_0.o" -L/usr/local/lib -lcob -lm -lgmp
-lncursesw -ldb -ldl -l"gtk-3"
Return status: 0
$ ldd simple
linux-vdso.so.1 => (0x00007fffae9cf000)
libcob.so.4 => /usr/local/lib/libcob.so.4 (0x00007f4ff2548000)
libm.so.6 => /lib64/libm.so.6 (0x0000003e5ae00000)
libgmp.so.10 => /lib64/libgmp.so.10 (0x0000003e7a200000)
libncursesw.so.5 => /lib64/libncursesw.so.5 (0x0000003e5d200000)
libtinfo.so.5 => /lib64/libtinfo.so.5 (0x0000003e69800000)
libdb-5.3.so => /lib64/libdb-5.3.so (0x0000003e6ac00000)
libdl.so.2 => /lib64/libdl.so.2 (0x0000003e5b200000)
libgtk-3.so.0 => /lib64/libgtk-3.so.0 (0x0000003e6ba00000)
libc.so.6 => /lib64/libc.so.6 (0x0000003e5aa00000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003e5b600000)
/lib64/ld-linux-x86-64.so.2 (0x0000003e5a600000)
libgdk-3.so.0 => /lib64/libgdk-3.so.0 (0x0000003e6a800000)
libgmodule-2.0.so.0 => /lib64/libgmodule-2.0.so.0 (0x0000003e65600000)
libpangocairo-1.0.so.0 => /lib64/libpangocairo-1.0.so.0 (0x0000003e75200000)
libX11.so.6 => /lib64/libX11.so.6 (0x00007f4ff2206000)
libXi.so.6 => /lib64/libXi.so.6 (0x0000003e62600000)
libXfixes.so.3 => /lib64/libXfixes.so.3 (0x0000003e5fe00000)
libcairo-gobject.so.2 => /lib64/libcairo-gobject.so.2 (0x0000003e6a400000)
libcairo.so.2 => /lib64/libcairo.so.2 (0x0000003e71000000)
libgdk_pixbuf-2.0.so.0 => /lib64/libgdk_pixbuf-2.0.so.0 (0x0000003e6e000000)
libatk-1.0.so.0 => /lib64/libatk-1.0.so.0 (0x0000003e75600000)
libatk-bridge-2.0.so.0 => /lib64/libatk-bridge-2.0.so.0 (0x0000003e6c600000)
libpangoft2-1.0.so.0 => /lib64/libpangoft2-1.0.so.0 (0x0000003e71c00000)
libpango-1.0.so.0 => /lib64/libpango-1.0.so.0 (0x0000003e73600000)
libfontconfig.so.1 => /lib64/libfontconfig.so.1 (0x0000003e61600000)
libgio-2.0.so.0 => /lib64/libgio-2.0.so.0 (0x0000003e66600000)
libgobject-2.0.so.0 => /lib64/libgobject-2.0.so.0 (0x0000003e5fa00000)
libglib-2.0.so.0 => /lib64/libglib-2.0.so.0 (0x0000003e5e600000)
libXinerama.so.1 => /lib64/libXinerama.so.1 (0x0000003e61e00000)
libXrandr.so.2 => /lib64/libXrandr.so.2 (0x0000003e62200000)
libXcursor.so.1 => /lib64/libXcursor.so.1 (0x0000003e62e00000)
libXcomposite.so.1 => /lib64/libXcomposite.so.1 (0x0000003e74e00000)
libXdamage.so.1 => /lib64/libXdamage.so.1 (0x0000003e67e00000)
libwayland-client.so.0 => /lib64/libwayland-client.so.0 (0x0000003e6ec00000)
libxkbcommon.so.0 => /lib64/libxkbcommon.so.0 (0x0000003e6b000000)
libwayland-cursor.so.0 => /lib64/libwayland-cursor.so.0 (0x0000003e69c00000)
libXext.so.6 => /lib64/libXext.so.6 (0x0000003e5ea00000)
librt.so.1 => /lib64/librt.so.1 (0x0000003e5ce00000)
libgthread-2.0.so.0 => /lib64/libgthread-2.0.so.0 (0x0000003e61a00000)
libharfbuzz.so.0 => /lib64/libharfbuzz.so.0 (0x0000003e6f000000)
libfreetype.so.6 => /lib64/libfreetype.so.6 (0x0000003e60e00000)
libxcb.so.1 => /lib64/libxcb.so.1 (0x0000003e5da00000)
libpixman-1.so.0 => /lib64/libpixman-1.so.0 (0x0000003e6f800000)
libEGL.so.1 => /lib64/libEGL.so.1 (0x0000003e73200000)
libpng16.so.16 => /lib64/libpng16.so.16 (0x0000003e5f600000)
libxcb-shm.so.0 => /lib64/libxcb-shm.so.0 (0x0000003e6e800000)
libxcb-render.so.0 => /lib64/libxcb-render.so.0 (0x0000003e70800000)
libXrender.so.1 => /lib64/libXrender.so.1 (0x0000003e61200000)
libz.so.1 => /lib64/libz.so.1 (0x0000003e5ba00000)
libGL.so.1 => /lib64/libGL.so.1 (0x0000003e68200000)
libatspi.so.0 => /lib64/libatspi.so.0 (0x0000003e6c200000)
libdbus-1.so.3 => /lib64/libdbus-1.so.3 (0x0000003e62a00000)
libexpat.so.1 => /lib64/libexpat.so.1 (0x0000003e60a00000)
libffi.so.6 => /lib64/libffi.so.6 (0x0000003e5ee00000)
libselinux.so.1 => /lib64/libselinux.so.1 (0x0000003e5ca00000)
libresolv.so.2 => /lib64/libresolv.so.2 (0x0000003e5e200000)
libgraphite2.so.3 => /lib64/libgraphite2.so.3 (0x0000003e6fc00000)
libXau.so.6 => /lib64/libXau.so.6 (0x0000003e5d600000)
libX11-xcb.so.1 => /lib64/libX11-xcb.so.1 (0x0000003e65e00000)
libxcb-dri2.so.0 => /lib64/libxcb-dri2.so.0 (0x0000003e67200000)
libxcb-xfixes.so.0 => /lib64/libxcb-xfixes.so.0 (0x0000003e70400000)
libxcb-shape.so.0 => /lib64/libxcb-shape.so.0 (0x0000003e72a00000)
libgbm.so.1 => /lib64/libgbm.so.1 (0x0000003e70c00000)
libudev.so.1 => /lib64/libudev.so.1 (0x0000003e63200000)
libwayland-server.so.0 => /lib64/libwayland-server.so.0 (0x0000003e74a00000)
libglapi.so.0 => /lib64/libglapi.so.0 (0x0000003e67600000)
libdrm.so.2 => /lib64/libdrm.so.2 (0x0000003e67a00000)
libxcb-glx.so.0 => /lib64/libxcb-glx.so.0 (0x0000003e66e00000)
libXxf86vm.so.1 => /lib64/libXxf86vm.so.1 (0x0000003e66200000)
libpcre.so.1 => /lib64/libpcre.so.1 (0x0000003e5c600000)
liblzma.so.5 => /lib64/liblzma.so.5 (0x0000003e5c200000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003e5be00000)
生成的C代碼在Ubuntu
/* Line: 4 : CALL : simple.cob */
cob_procedure_params[0] = (cob_field *)&c_1;
cob_procedure_params[1] = NULL;
cob_glob_ptr->cob_call_params = 2;
if (unlikely(call_gtk_init.funcvoid == NULL)) {
call_gtk_init.funcvoid = cob_resolve_cobol ("gtk_init", 0, 1);
}
call_gtk_init.funcnull ((cob_s32_t)0LL, NULL);
b_1 = 0;
和Fedora
/* Line: 4 : CALL : simple.cob */
cob_procedure_params[0] = (cob_field *)&c_1;
cob_procedure_params[1] = NULL;
cob_glob_ptr->cob_call_params = 2;
if (unlikely(call_gtk_init.funcvoid == NULL)) {
call_gtk_init.funcvoid = cob_resolve_cobol ("gtk_init", 0, 1);
}
call_gtk_init.funcnull ((cob_s32_t)0LL, NULL);
b_1 = 0;
0(GnuCOBOL採用C中間體)
當從C調用gtk_init時,我在Ubuntu上獲得了良好的結果(完整的ELF鏈接提示),而不是作爲傳遞給cob_resolve的字符串。使用gcc測試-o simple simple-gtk.c -lgtk-3
那麼圍繞-llibname的假設會發生什麼變化?它似乎並沒有包含在ELF數據中,因爲dlopen甚至懶得試圖尋找libgtk-3.so
更多信息:Ubuntu上的錯誤編譯行實際上使它看起來像這應該工作。 (拼寫錯誤GTK)
$ cobc -x -v -lgkt-3 simple.cob
Command line: cobc -x -v -lgkt-3 simple.cob
Preprocessing: simple.cob -> /tmp/cob13556_0.cob
Return status: 0
Parsing: /tmp/cob13556_0.cob (simple.cob)
Return status: 0
Translating: /tmp/cob13556_0.cob -> /tmp/cob13556_0.c (simple.cob)
Executing: gcc -std=gnu99 -c -I/usr/local/include -pipe -Wno-unused
-fsigned-char -Wno-pointer-sign -o "/tmp/cob13556_0.o"
"/tmp/cob13556_0.c"
Return status: 0
Executing: gcc -std=gnu99 -Wl,--export-dynamic -o "simple"
"/tmp/cob13556_0.o" -L/usr/local/lib -lcob -lm -lgmp -lncurses
-ldb -ldl -l"gkt-3"
/usr/bin/ld: cannot find -lgkt-3
collect2: error: ld returned 1 exit status
Return status: 256
然而,用正確的編譯行的ELF未顯示任何提示連接到GTK-3
我一直頭現在和關閉刮傷上這一段時間。尋找關於使用Ubuntu和gcc和/或ld和/或dlopen dlsym更改哪些假設的提示。
開放式cobol軟件包在Debian和Ubuntu軟件庫上工作了好幾年了。甚至在Ubuntu上的舊版本的GnuCOBOL(GNU Cobol,或OpenCOBOL)現在都失敗了。一些東西改變了,我們沒有得到備忘錄。不止是願意更改編譯器源代碼,而是首先尋找友好的StackOverflow洞察。
這似乎不是一個本地環境問題,因爲這個Ubuntu問題也向其他人展示。這也感覺就像那些DOH中的一個!很容易解決問題。
更願意增加更多的編譯日誌,LD_DEBUG =所有場,或straces等更多
Petesh;謝謝。這將進入編譯器源代碼樹,希望今天。 – 2015-01-14 01:29:13