[Bug libc/26853] New: aarch64: Missing unwind information in statically linked startup code

[Bug libc/26853] New: aarch64: Missing unwind information in statically linked startup code

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=26853

            Bug ID: 26853
           Summary: aarch64: Missing unwind information in statically
                    linked startup code
           Product: glibc
           Version: 2.32
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: fweimer at redhat dot com
                CC: drepper.fsp at gmail dot com
  Target Milestone: ---
             Build: aarch64-linux-gnu
             Flags: security-

_start does not have any unwind information, and “strace -k” complains about
it:

$ strace -k gencat --help
exit_group(0)                           = ?
+++ exited with 0 +++
 > /usr/lib64/libc-2.28.so(_exit+0x1c) [0xa440c]
 > /usr/lib64/libc-2.28.so(__run_exit_handlers+0x227) [0x353c7]
 > /usr/lib64/libc-2.28.so(exit+0x1b) [0x35413]
 > /usr/lib64/libc-2.28.so(argp_state_help+0x6f) [0xdd0ef]
 > /usr/lib64/libc-2.28.so(argp_default_parser+0x3f) [0xdd367]
 > /usr/lib64/libc-2.28.so(argp_parse+0xac7) [0xde2b7]
 > /usr/bin/gencat(main+0x83) [0x4014d3]
 > /usr/lib64/libc-2.28.so(__libc_start_main+0xe3) [0x20be3]
 > /usr/bin/gencat(.annobin_elf_init.c_end.startup+0x4b) [0x4015f3]
 > /usr/bin/gencat(.annobin_elf_init.c_end.startup+0x4b) [0x4015f3]
 > No DWARF information found

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[Bug libc/26853] aarch64: Missing unwind information in statically linked startup code

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=26853

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at sourceware dot org   |fweimer at redhat dot com
             Status|NEW                         |ASSIGNED
                 CC|                            |fweimer at redhat dot com

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[Bug libc/26853] aarch64: Missing unwind information in statically linked startup code

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=26853

--- Comment #1 from Florian Weimer <fweimer at redhat dot com> ---
Patch posted:
https://sourceware.org/pipermail/libc-alpha/2020-November/119434.html

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[Bug libc/26853] aarch64: Missing unwind information in statically linked startup code

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=26853

--- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Florian Weimer <fw@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5edf3d9fd6efe06fda37b2a460e60690a90457a4

commit 5edf3d9fd6efe06fda37b2a460e60690a90457a4
Author: Florian Weimer <fweimer@redhat.com>
Date:   Mon Nov 9 11:31:04 2020 +0100

    aarch64: Add unwind information to _start (bug 26853)

    This adds CFI directives which communicate that the stack ends
    with this function.

    Fixes bug 26853.

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[Bug libc/26853] aarch64: Missing unwind information in statically linked startup code

[fweimer at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=26853

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
   Target Milestone|---                         |2.33
             Status|ASSIGNED                    |RESOLVED

--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for glibc 2.33.

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[Bug libc/26853] aarch64: Missing unwind information in statically linked startup code

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=26853

--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The release/2.32/master branch has been updated by Florian Weimer
<fw@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c6e794640c324db37038c6a8606f3f5f8903250b

commit c6e794640c324db37038c6a8606f3f5f8903250b
Author: Florian Weimer <fweimer@redhat.com>
Date:   Mon Nov 9 11:31:04 2020 +0100

    aarch64: Add unwind information to _start (bug 26853)

    This adds CFI directives which communicate that the stack ends
    with this function.

    Fixes bug 26853.

    (cherry picked from commit 5edf3d9fd6efe06fda37b2a460e60690a90457a4)

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