Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: medhefgo at web dot de
Target Milestone: ---
Given a signed PE/EFI binary, running `strip` on it will remove the signatures
contained in it, but leave the security data
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: medhefgo at web dot de
Target Milestone: ---
I know the following makes no sense to do, but it should error out instead of
crashing.
$ uname -a
Linux debian-amd64 6.1.14-1-lts #1 SMP PREEMPT_DYNAMIC Sat, 25 Feb
https://sourceware.org/bugzilla/show_bug.cgi?id=29998
--- Comment #24 from Jan Janssen ---
The patch seems to work and the EFI binary works as expected.
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--- Comment #21 from Jan Janssen ---
Of course the reproducer is nonsensical. It's just a minified version of
systemd-boot.
> These files appear to be redundant - their code is never called.
When I minified the code, this appeared to be nece
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--- Comment #18 from Jan Janssen ---
Compilation works now and the binary will run, but I get a miscompilation(?)
wrt popcount builtin.
Both cases are based on https://github.com/systemd/systemd/pull/26097, where I
originally encountered them
https://sourceware.org/bugzilla/show_bug.cgi?id=29998
--- Comment #15 from Jan Janssen ---
Compilation works with -Wl,--disable-reloc-section.
Since you're on fedora, you can easily set up a container like this (not sure
if adding a repo is needed when this is run on fedora, so you may need to a
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--- Comment #13 from Jan Janssen ---
Dunno why it it not occur to me to do a bisection…
514b4e191d5f46de8e142fe216e677a35fa9c4bb is the first bad commit
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--- Comment #12 from Jan Janssen ---
Now it crashes here (sec->output_section is NULL):
#0 _bfd_coff_generic_relocate_section (output_bfd=0x5581c000,
info=0x557d8ec0 , input_bfd=0x55864020,
input_section=0x55878008, contents=
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--- Comment #10 from Jan Janssen ---
> So possibly s->output_section is not a valid pointer ? Mind you this does
> seem unlikely as that very same indirection has been used in several places
> before line 1538. To be honest though, I have
https://sourceware.org/bugzilla/show_bug.cgi?id=29998
--- Comment #8 from Jan Janssen ---
I rebuilt mingw-w64-binutils with debug info and managed to get a backtrace
(this if on arch):
Thread 1 (Thread 0x77db1740 (LWP 84627) "ld"):
#0 generate_reloc (abfd=0x557f8a40, info=0x557bbe20
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--- Comment #7 from Jan Janssen ---
> I am stuck here because I do not have
> /usr/lib/gcc/x86_64-w64-mingw32/12.2.0/lto-wrapper installed (and just using
> a dummy empty file does not work).
It's as easy as:
$ deboostrap --include=gcc-12,g
https://sourceware.org/bugzilla/show_bug.cgi?id=29998
--- Comment #5 from Jan Janssen ---
Convert string
'/usr/lib/gcc/x86_64-w64-mingw32/12.2.0/:/usr/lib/gcc/x86_64-w64-mingw32/12.2.0/:/usr/lib/gcc/x86_64-w64-mingw32/:/usr/lib/gcc/x86_64-w64-mingw32/12.2.0/:/usr/lib/gcc/x86_64-w64-mingw32/:/usr/
https://sourceware.org/bugzilla/show_bug.cgi?id=29998
--- Comment #4 from Jan Janssen ---
Created attachment 14595
--> https://sourceware.org/bugzilla/attachment.cgi?id=14595&action=edit
test2.obj
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--- Comment #3 from Jan Janssen ---
Created attachment 14594
--> https://sourceware.org/bugzilla/attachment.cgi?id=14594&action=edit
test1.obj
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--- Comment #2 from Jan Janssen ---
Created attachment 14593
--> https://sourceware.org/bugzilla/attachment.cgi?id=14593&action=edit
libtest.a
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: normal
Priority: P2
Component: ld
Assignee: unassigned at sourceware dot org
Reporter: medhefgo at web dot de
Target Milestone: ---
The following build steps will result in bfd crashing. This only seems to
happen with a mingw gcc toolchain and only if LTO is
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