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[binutils-gdb] Add missing parameter to 'amd64_create_target_description' (and unbreak build)
- From: sergiodj+buildbot at sergiodj dot net
- To: gdb-testers at sourceware dot org
- Date: Fri, 29 Jun 2018 21:52:16 -0400
- Subject: [binutils-gdb] Add missing parameter to 'amd64_create_target_description' (and unbreak build)
*** TEST RESULTS FOR COMMIT c0867626d277101afcead91e94f20cbe89a3aced ***
Author: Sergio Durigan Junior <sergiodj@redhat.com>
Branch: master
Commit: c0867626d277101afcead91e94f20cbe89a3aced
Add missing parameter to 'amd64_create_target_description' (and unbreak build)
While building gdbserver on GNU/Linux, the build failed with:
../../../binutils-gdb/gdb/gdbserver/linux-x86-tdesc.c: In function const target_desc* amd64_linux_read_description(uint64_t, bool):
../../../binutils-gdb/gdb/gdbserver/linux-x86-tdesc.c:121:67: error: too few arguments to function target_desc* amd64_create_target_description(uint64_t, bool, bool, bool)
*tdesc = amd64_create_target_description (xcr0, is_x32, true);
^
In file included from ../../../binutils-gdb/gdb/gdbserver/linux-x86-tdesc.c:26:0:
../../../binutils-gdb/gdb/gdbserver/../arch/amd64.h:21:14: note: declared here
target_desc *amd64_create_target_description (uint64_t xcr0, bool is_x32,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
According to Joel Brobecker:
> I think the parameter should be set to "true". Otherwise, it will
> not include the fs_base and gs_base register in the list of registers.
> Although the name of the source file says x86, the code itself is
> protected by...
>
> #ifdef __x86_64__
>
> ... and is inside a function called amd64_linux_read_description.
> I also verified that this file gets compiled on amd64-linux platforms.
> See gdb/gdbserver/configure.srv:
>
> x86_64-*-linux*) srv_regobj="$srv_amd64_linux_regobj $srv_i386_linux_regobj"
>
> The last piece of confirmation is that setting the parameter to "true"
> provides the behavior before the parameter was added; and the reason
> for adding the parameter was to remove the {fs,gs}_base registers
> from the list for Windows only.
Therefore I'm pushing the patch to unbreak the build.
gdb/gdbserver/ChangeLog:
2018-06-29 Joel Brobecker <brobecker@adacore.com>
* linux-x86-tdesc.c (amd64_linux_read_description): Add missing
parameter in call to 'amd64_create_target_description'.