8sa1-binutils-gdb/gdb/ChangeLog
Andrey Utkin 5d36dfb949 Fix search of debug files for remote debuggee
When using remote debugging server, and when debuggee filename is
inferred via qXfer:exec-file:read request, or sysroot starts with
"target:", this "target:" prefix of filepaths is not treated correctly
during debug file search - it appears in the middle of the looked up
paths.

In the following example, unpatched GDB can't find separate debug files for
neither the executable, nor standard libraries:

     $ gdb -ex 'set debug separate-debug-file 1' -ex 'set sysroot target:/' -ex 'set debug-file-directory /usr/lib/debug:/home/j/hide' -ex 'target remote :3333' -ex 'break main' -ex 'continue' -ex 'bt' -ex 'info sharedlibrary' -ex 'set confirm off' -ex 'quit'
    GNU gdb (Gentoo 9999 vanilla) 8.2.50.20181109-git
    Copyright (C) 2018 Free Software Foundation, Inc.
    License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
    This is free software: you are free to change and redistribute it.
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    Type "show copying" and "show warranty" for details.
    This GDB was configured as "x86_64-pc-linux-gnu".
    Type "show configuration" for configuration details.
    For bug reporting instructions, please see:
    <https://bugs.gentoo.org/>.
    Find the GDB manual and other documentation resources online at:
        <http://www.gnu.org/software/gdb/documentation/>.

    For help, type "help".
    Type "apropos word" to search for commands related to "word".
    Remote debugging using :3333
    Reading /home/j/test from remote target...
    warning: File transfers from remote targets can be slow. Use "set sysroot" to access files locally instead.
    Reading /home/j/test from remote target...
    Reading symbols from target:/home/j/test...

    Looking for separate debug info (debug link) for target:/home/j/test
      Trying target:/home/j/test.debug
    Reading /home/j/test.debug from remote target...
      Trying target:/home/j/.debug/test.debug
    Reading /home/j/.debug/test.debug from remote target...
      Trying /usr/lib/debug/target:/home/j/test.debug
      Trying /home/j/hide/target:/home/j/test.debug
    (No debugging symbols found in target:/home/j/test)
    Reading /lib64/ld-linux-x86-64.so.2 from remote target...
    Reading /lib64/ld-linux-x86-64.so.2 from remote target...
    Reading symbols from target:/lib64/ld-linux-x86-64.so.2...

    Looking for separate debug info (debug link) for target:/lib64/ld-linux-x86-64.so.2
      Trying target:/lib64/ld-2.27.so.debug
    Reading /lib64/ld-2.27.so.debug from remote target...
      Trying target:/lib64/.debug/ld-2.27.so.debug
    Reading /lib64/.debug/ld-2.27.so.debug from remote target...
      Trying /usr/lib/debug/target:/lib64/ld-2.27.so.debug
      Trying /home/j/hide/target:/lib64/ld-2.27.so.debug
    (No debugging symbols found in target:/lib64/ld-linux-x86-64.so.2)

    Looking for separate debug info (build-id) for system-supplied DSO at 0x7ffff7ffa000
      Trying /usr/lib/debug/.build-id/fd/03d584bc1a90ba28be457635a02662c9f9c1f2.debug
      Trying /home/j/hide/.build-id/fd/03d584bc1a90ba28be457635a02662c9f9c1f2.debug
    0x00007ffff7dd7000 in ?? () from target:/lib64/ld-linux-x86-64.so.2
    Breakpoint 1 at 0x4005eb
    Continuing.
    Reading /lib64/libpthread.so.0 from remote target...
    Reading /lib64/libc.so.6 from remote target...

    Looking for separate debug info (debug link) for target:/lib64/libpthread.so.0
      Trying target:/lib64/libpthread-2.27.so.debug
    Reading /lib64/libpthread-2.27.so.debug from remote target...
      Trying target:/lib64/.debug/libpthread-2.27.so.debug
    Reading /lib64/.debug/libpthread-2.27.so.debug from remote target...
      Trying /usr/lib/debug/target:/lib64/libpthread-2.27.so.debug
      Trying /home/j/hide/target:/lib64/libpthread-2.27.so.debug

    Looking for separate debug info (debug link) for target:/lib64/libc.so.6
      Trying target:/lib64/libc-2.27.so.debug
    Reading /lib64/libc-2.27.so.debug from remote target...
      Trying target:/lib64/.debug/libc-2.27.so.debug
    Reading /lib64/.debug/libc-2.27.so.debug from remote target...
      Trying /usr/lib/debug/target:/lib64/libc-2.27.so.debug
      Trying /home/j/hide/target:/lib64/libc-2.27.so.debug

    Breakpoint 1, 0x00000000004005eb in main ()
    #0  0x00000000004005eb in main ()
    From                To                  Syms Read   Shared Object Library
    0x00007ffff7dd6e80  0x00007ffff7df4650  Yes (*)     target:/lib64/ld-linux-x86-64.so.2
    0x00007ffff7bbbb70  0x00007ffff7bcbfee  Yes (*)     target:/lib64/libpthread.so.0
    0x00007ffff780f200  0x00007ffff7962d7c  Yes (*)     target:/lib64/libc.so.6
    (*): Shared library is missing debugging information.

With current fix, the paths used always have target: in the beginning
and this helps to find all debug files:

     $ gdb -ex 'set debug separate-debug-file 1' -ex 'set sysroot target:/' -ex 'set debug-file-directory /usr/lib/debug:/home/j/hide' -ex 'target remote :3333' -ex 'break main' -ex 'continue' -ex 'bt' -ex 'info sharedlibrary' -ex 'set confirm off' -ex 'quit'
    GNU gdb (Gentoo 9999 vanilla) 8.2.50.20181109-git
    Copyright (C) 2018 Free Software Foundation, Inc.
    License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
    This is free software: you are free to change and redistribute it.
    There is NO WARRANTY, to the extent permitted by law.
    Type "show copying" and "show warranty" for details.
    This GDB was configured as "x86_64-pc-linux-gnu".
    Type "show configuration" for configuration details.
    For bug reporting instructions, please see:
    <https://bugs.gentoo.org/>.
    Find the GDB manual and other documentation resources online at:
        <http://www.gnu.org/software/gdb/documentation/>.

    For help, type "help".
    Type "apropos word" to search for commands related to "word".
    Remote debugging using :3333
    Reading /home/j/test from remote target...
    warning: File transfers from remote targets can be slow. Use "set sysroot" to access files locally instead.
    Reading /home/j/test from remote target...
    Reading symbols from target:/home/j/test...

    Looking for separate debug info (debug link) for target:/home/j/test
      Trying target:/home/j/test.debug
    Reading /home/j/test.debug from remote target...
      Trying target:/home/j/.debug/test.debug
    Reading /home/j/.debug/test.debug from remote target...
      Trying target:/usr/lib/debug//home/j/test.debug
    Reading /usr/lib/debug//home/j/test.debug from remote target...
      Trying target:/home/j/hide//home/j/test.debug
    Reading /home/j/hide//home/j/test.debug from remote target...
    Reading /home/j/hide//home/j/test.debug from remote target...
    Reading symbols from target:/home/j/hide//home/j/test.debug...
    Reading /lib64/ld-linux-x86-64.so.2 from remote target...
    Reading /lib64/ld-linux-x86-64.so.2 from remote target...
    Reading symbols from target:/lib64/ld-linux-x86-64.so.2...

    Looking for separate debug info (debug link) for target:/lib64/ld-linux-x86-64.so.2
      Trying target:/lib64/ld-2.27.so.debug
    Reading /lib64/ld-2.27.so.debug from remote target...
      Trying target:/lib64/.debug/ld-2.27.so.debug
    Reading /lib64/.debug/ld-2.27.so.debug from remote target...
      Trying target:/usr/lib/debug//lib64/ld-2.27.so.debug
    Reading /usr/lib/debug//lib64/ld-2.27.so.debug from remote target...
    Reading /usr/lib/debug//lib64/ld-2.27.so.debug from remote target...
    Reading symbols from target:/usr/lib/debug//lib64/ld-2.27.so.debug...

    Looking for separate debug info (build-id) for system-supplied DSO at 0x7ffff7ffa000
      Trying /usr/lib/debug/.build-id/fd/03d584bc1a90ba28be457635a02662c9f9c1f2.debug
      Trying /home/j/hide/.build-id/fd/03d584bc1a90ba28be457635a02662c9f9c1f2.debug
    0x00007ffff7dd7000 in _start () from target:/lib64/ld-linux-x86-64.so.2
    Breakpoint 1 at 0x4005ef: file test/test16.c, line 13.
    Continuing.
    Reading /lib64/libpthread.so.0 from remote target...
    Reading /lib64/libc.so.6 from remote target...

    Looking for separate debug info (debug link) for target:/lib64/libpthread.so.0
      Trying target:/lib64/libpthread-2.27.so.debug
    Reading /lib64/libpthread-2.27.so.debug from remote target...
      Trying target:/lib64/.debug/libpthread-2.27.so.debug
    Reading /lib64/.debug/libpthread-2.27.so.debug from remote target...
      Trying target:/usr/lib/debug//lib64/libpthread-2.27.so.debug
    Reading /usr/lib/debug//lib64/libpthread-2.27.so.debug from remote target...
    Reading /usr/lib/debug//lib64/libpthread-2.27.so.debug from remote target...

    Looking for separate debug info (debug link) for target:/lib64/libc.so.6
      Trying target:/lib64/libc-2.27.so.debug
    Reading /lib64/libc-2.27.so.debug from remote target...
      Trying target:/lib64/.debug/libc-2.27.so.debug
    Reading /lib64/.debug/libc-2.27.so.debug from remote target...
      Trying target:/usr/lib/debug//lib64/libc-2.27.so.debug
    Reading /usr/lib/debug//lib64/libc-2.27.so.debug from remote target...
    Reading /usr/lib/debug//lib64/libc-2.27.so.debug from remote target...

    Breakpoint 1, main () at test/test16.c:13
    13          for ( i=0; i<10; ++i)
    #0  main () at test/test16.c:13
    From                To                  Syms Read   Shared Object Library
    0x00007ffff7dd6e80  0x00007ffff7df4650  Yes         target:/lib64/ld-linux-x86-64.so.2
    0x00007ffff7bbbb70  0x00007ffff7bcbfee  Yes         target:/lib64/libpthread.so.0
    0x00007ffff780f200  0x00007ffff7962d7c  Yes         target:/lib64/libc.so.6

gdb/ChangeLog:

2018-11-09  Andrey Utkin  <autkin@undo.io>

        * symfile.c (find_separate_debug_file): Fix search of debug files for
        remote debuggee.

Signed-off-by: Andrey Utkin <autkin@undo.io>
2019-01-02 14:53:01 -05:00

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2019-01-02 Andrey Utkin <autkin@undo.io>
* symfile.c (find_separate_debug_file): Fix search of debug files for
remote debuggee.
2019-01-02 Tom Tromey <tom@tromey.com>
* python/py-inferior.c (gdbpy_initialize_inferior): Fix
indentation.
* python/py-frame.c (frapy_older): Remove cast.
(frapy_newer): Likewise.
* python/py-breakpoint.c (local_setattro): Remove cast.
* python/py-arch.c (archpy_name): Remove local variable.
* python/py-type.c (gdbpy_lookup_type): Remove cast.
2019-01-02 Joel Brobecker <brobecker@adacore.com>
* unittests/basic_string_view/element_access/char/empty.cc:
Fix year range in copyright header.
2019-01-01 Andrew Burgess <andrew.burgess@embecosm.com>
* arch/riscv.h (struct riscv_gdbarch_features) <hw_float_abi>:
Delete.
<operator==>: Update with for removed field.
<hash>: Likewise.
* riscv-tdep.h (struct gdbarch_tdep) <features>: Renamed to...
<isa_features>: ...this.
<abi_features>: New field.
(riscv_isa_flen): Update comment.
(riscv_abi_xlen): New declaration.
(riscv_abi_flen): New declaration.
* riscv-tdep.c (riscv_isa_xlen): Update to get answer from
isa_features.
(riscv_abi_xlen): New function.
(riscv_isa_flen): Update to get answer from isa_features.
(riscv_abi_flen): New function.
(riscv_has_fp_abi): Update to get answer from abi_features.
(riscv_call_info::riscv_call_info): Use abi xlen and flen, not isa
xlen and flen.
(riscv_call_info) <xlen, flen>: Update comment.
(riscv_call_arg_struct): Remove invalid assertions
(riscv_features_from_gdbarch_info): Update now hw_float_abi field
is removed.
(riscv_gdbarch_init): Gather isa features and abi features
separately, ensure both match on the gdbarch when reusing an old
gdbarch. Relax an error check to allow 32-bit abi float to run on
a target with 64-bit float hardware.
2019-01-01 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* source.c (search_command_helper): Stop reverse search
when line 1 has been searched.
2019-01-01 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* record-full.c (record_full_base_target::close): Rewrite
record_full_core_buf_list free logic.
2019-01-01 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* break-catch-syscall.c (print_one_catch_syscall): xfree
the last text.
2019-01-01 Joel Brobecker <brobecker@adacore.com>
* top.c (print_gdb_version): Update Copyright year in version
message.
2019-01-01 Joel Brobecker <brobecker@adacore.com>
Update copyright year range in all GDB files.
2019-01-01 Joel Brobecker <brobecker@adacore.com>
* config/djgpp/fnchange.lst: Add entry for gdb/ChangeLog-2018.
For older changes see ChangeLog-2018.
Local Variables:
mode: change-log
left-margin: 8
fill-column: 74
version-control: never
coding: utf-8
End: