python undefined reference when compiling for gdb 7.11.x

[sadaaithal]

Hi
It would help if you could share the detailed steps on how to build from scratch.
Ive tried a lot of things but keep ending up with something like this

gcc -g -O2      \
        -o gdb gdb.o amd64-tdep.o amd64-linux-tdep.o i386-tdep.o i387-tdep.o i386-linux-tdep.o glibc-tdep.o solib-svr4.o symfile-mem.o linux-tdep.o linux-record.o ser-base.o ser-unix.o ser-pipe.o ser-tcp.o inf-ptrace.o fork-child.o x86-nat.o x86-dregs.o amd64-nat.o amd64-linux-nat.o x86-linux-nat.o linux-nat.o linux-osdata.o proc-service.o linux-thread-db.o linux-fork.o linux-procfs.o linux-ptrace.o linux-btrace.o linux-waitpid.o linux-personality.o x86-linux.o x86-linux-dregs.o amd64-linux-siginfo.o linux-namespaces.o remote.o dcache.o tracepoint.o ax-general.o ax-gdb.o remote-fileio.o remote-notif.o ctf.o tracefile.o tracefile-tfile.o  cli-dump.o cli-decode.o cli-script.o cli-cmds.o cli-setshow.o cli-logging.o cli-interp.o cli-utils.o mi-out.o mi-console.o mi-cmds.o mi-cmd-catch.o mi-cmd-env.o mi-cmd-var.o mi-cmd-break.o mi-cmd-stack.o mi-cmd-file.o mi-cmd-disas.o mi-symbol-cmds.o mi-cmd-target.o mi-cmd-info.o mi-interp.o mi-main.o mi-parse.o mi-getopt.o tui-command.o tui-data.o tui-disasm.o tui-file.o tui-hooks.o tui-interp.o tui-io.o tui-layout.o tui-out.o tui-regs.o tui-source.o tui-stack.o tui-win.o tui-windata.o tui-wingeneral.o tui-winsource.o tui.o python.o py-arch.o py-auto-load.o py-block.o py-bpevent.o py-breakpoint.o py-cmd.o py-continueevent.o py-xmethods.o py-event.o py-evtregistry.o py-evts.o py-exitedevent.o py-finishbreakpoint.o py-frame.o py-framefilter.o py-function.o py-gdb-readline.o py-inferior.o py-infevents.o py-infthread.o py-lazy-string.o py-linetable.o py-newobjfileevent.o py-objfile.o py-param.o py-prettyprint.o py-progspace.o py-signalevent.o py-stopevent.o py-symbol.o py-symtab.o py-threadevent.o py-type.o py-unwind.o py-utils.o py-value.o py-varobj.o guile.o elfread.o stap-probe.o dtrace-probe.o posix-hdep.o posix-strerror.o c-exp.o cp-name-parser.o ada-exp.o jv-exp.o d-exp.o f-exp.o go-exp.o m2-exp.o p-exp.o version.o annotate.o addrmap.o auto-load.o auxv.o agent.o bfd-target.o blockframe.o breakpoint.o break-catch-sig.o break-catch-throw.o break-catch-syscall.o findvar.o regcache.o cleanups.o charset.o continuations.o corelow.o disasm.o dummy-frame.o dfp.o source.o value.o eval.o valops.o valarith.o valprint.o printcmd.o block.o symtab.o psymtab.o symfile.o symfile-debug.o symmisc.o linespec.o dictionary.o namespace.o location.o infcall.o infcmd.o infrun.o expprint.o environ.o stack.o tid-parse.o thread.o thread-fsm.o exceptions.o extension.o filesystem.o filestuff.o inf-child.o interps.o minidebug.o main.o macrotab.o macrocmd.o macroexp.o macroscope.o mi-common.o event-loop.o event-top.o inf-loop.o completer.o gdbarch.o arch-utils.o gdbtypes.o gdb_bfd.o gdb_obstack.o osabi.o copying.o memattr.o mem-break.o target.o target-dcache.o parse.o language.o build-id.o buildsym.o findcmd.o std-regs.o signals.o exec.o reverse.o bcache.o objfiles.o observer.o minsyms.o maint.o demangle.o dbxread.o coffread.o coff-pe-read.o dwarf2read.o mipsread.o stabsread.o corefile.o dwarf2expr.o dwarf2loc.o dwarf2-frame.o dwarf2-frame-tailcall.o ada-lang.o c-lang.o d-lang.o f-lang.o objc-lang.o ada-tasks.o ada-varobj.o c-varobj.o ui-out.o cli-out.o varobj.o vec.o go-lang.o go-valprint.o go-typeprint.o jv-lang.o jv-valprint.o jv-typeprint.o jv-varobj.o m2-lang.o opencl-lang.o p-lang.o p-typeprint.o p-valprint.o sentinel-frame.o complaints.o typeprint.o ada-typeprint.o c-typeprint.o f-typeprint.o m2-typeprint.o ada-valprint.o c-valprint.o cp-valprint.o d-valprint.o f-valprint.o m2-valprint.o serial.o mdebugread.o top.o utils.o ui-file.o user-regs.o frame.o frame-unwind.o doublest.o frame-base.o inline-frame.o gnu-v2-abi.o gnu-v3-abi.o cp-abi.o cp-support.o cp-namespace.o d-namespace.o reggroups.o trad-frame.o tramp-frame.o solib.o solib-target.o prologue-value.o memory-map.o memrange.o xml-support.o xml-syscall.o xml-utils.o target-descriptions.o target-memory.o xml-tdesc.o xml-builtin.o inferior.o osdata.o gdb_usleep.o record.o record-full.o gcore.o gdb_vecs.o jit.o progspace.o skip.o probe.o common-utils.o buffer.o ptid.o gdb-dlfcn.o common-agent.o format.o registry.o btrace.o record-btrace.o waitstatus.o print-utils.o rsp-low.o errors.o common-debug.o debug.o common-exceptions.o btrace-common.o fileio.o common-regcache.o compile.o compile-c-symbols.o compile-c-types.o compile-object-load.o compile-object-run.o compile-loc2c.o compile-c-support.o inflow.o    init.o \
           ../readline/libreadline.a ../opcodes/libopcodes.a ../bfd/libbfd.a -L./../zlib -lz  ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a    -ldl -ldl -lncurses -lm -ldl   -L/data/isuser/temp/lib/python2.7/config -lpthread -ldl -lutil -lm -lpython2.7 -Xlinker -export-dynamic     ../libiberty/libiberty.a  build-gnulib/import/libgnu.a  -ldl -Wl,--dynamic-list=./proc-service.list
/data/isuser/temp/lib/python2.7/config/libpython2.7.a(posixmodule.o): In function `posix_tmpnam':
/root/tools/Python-2.7.9/./Modules/posixmodule.c:7575: warning: the use of `tmpnam_r' is dangerous, better use `mkstemp'
/data/isuser/temp/lib/python2.7/config/libpython2.7.a(posixmodule.o): In function `posix_tempnam':
/root/tools/Python-2.7.9/./Modules/posixmodule.c:7522: warning: the use of `tempnam' is dangerous, better use `mkstemp'
python.o: In function `_initialize_python':
/data/isuser/tools/gdb-7.11.1/gdb/./python/python.c:1834: undefined reference to `gdbpy_initialize_heap_block'
/data/isuser/tools/gdb-7.11.1/gdb/./python/python.c:1835: undefined reference to `gdbpy_initialize_object_ref'
python.o:(.data+0x428): undefined reference to `gdbpy_heap_block'
python.o:(.data+0x448): undefined reference to `gdbpy_heap_walk'
python.o:(.data+0x468): undefined reference to `gdbpy_big_blocks'
python.o:(.data+0x488): undefined reference to `gdbpy_cpp_object'
python.o:(.data+0x4a8): undefined reference to `gdbpy_shared_object'
python.o:(.data+0x4c8): undefined reference to `gdbpy_ref'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:1410: gdb] Error 1
make[2]: Leaving directory '/data/isuser/tools/gdb-7.11.1/gdb'
make[1]: *** [Makefile:9157: all-gdb] Error 2
make[1]: Leaving directory '/data/isuser/tools/gdb-7.11.1'
make: *** [Makefile:847: all] Error 2

I did copy the python files from gdbplus to gdb-7.11.1/gdb/python folder as suggested in one of the issues.
I have configured this against python2.7.

Can you let me know what else I am missing?

[sadaaithal]

i meticulously copied all the files in their respective locations in gdb source folders - some of them were copied as cpp files but i did that again by copying them as .c files.
and then the build went through.
i will run more tests.