[Bug 2044269] Re: gdb broken on armhf

[Mate Kukri]

This is armhf gdb running in an lxc container on an arm64 kernel.

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https://bugs.launchpad.net/bugs/2044269

Title:
  gdb broken on armhf

Status in gdb package in Ubuntu:
  New

Bug description:
  Trying to step through an armhf program in gdb throws the following
  internal error:

  ```
  /build/gdb-U0UiMP/gdb-14.0.50.20230907/gdb/displaced-stepping.c:283: internal-error: copy_insn_closure_by_addr: Assertion `buffer.copy_insn_closure.get () != nullpt
  r' failed.
  A problem internal to GDB has been detected,
  further debugging may prove unreliable.
  ----- Backtrace -----
  0xab234d ???
  0xdb2a93 ???
  0xdb2cf5 ???
  0xf16145 ???
  0xb29e4f ???
  0xa7d24d ???
  0xa7d3b5 ???
  0xb272a3 ???
  0xb2798b ???
  0xd64943 ???
  0xd653f1 ???
  0xd7beed ???
  0xd6525f ???
  0xd7800f ???
  0xd66105 ???
  0xb8dddf ???
  0xbdfcd1 ???
  0xbf1243 ???
  0xa7ffeb ???
  0xf17031 ???
  0xc26291 ???
  0xc284a9 ???
  0xa125c1 ???
  0x40c33699 __libc_start_call_main
    ../sysdeps/nptl/libc_start_call_main.h:58
  0x40c3373d __libc_start_main_impl
    ./csu/libc-start.c:360
  ---------------------
  /build/gdb-U0UiMP/gdb-14.0.50.20230907/gdb/displaced-stepping.c:283: internal-error: copy_insn_closure_by_addr: Assertion `buffer.copy_insn_closure.get () != nullpt
  r' failed.
  A problem internal to GDB has been detected,
  further debugging may prove unreliable.
  Quit this debugging session? (y or n) Quit
  ```

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