This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.
This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.
For the avoidance of doubt, all changes in this commits were
performed by the script.
Augment the register description XML to expose the BTI BTYPE field contained
in the CPSR register. It will be displayed like so:
cpsr 0x60001000 [ EL=0 BTYPE=0 SSBS C Z ]
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
Add all the CPSR flags for Armv8.1-A through to Armv8.4-A.
In addition, document all the existing flags, and remove
the superfluous empty spaces.
gdb/ChangeLog:
* features/aarch64-core.c (create_feature_aarch64_core):
Regenerate.
* features/aarch64-core.xml: Add cpsr flags.
This commit applies all changes made after running the gdb/copyright.py
script.
Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.
gdb/ChangeLog:
Update copyright year range in all GDB files.
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
Newer gdbservers may be talking to older gdbs,
and older gdbs will flag a missing "end" as an error.
So just make "end" required again, and for compatibility
change the default field type to "bool".
gdb/ChangeLog:
2016-10-06 Doug Evans <dje@google.com>
* features/aarch64-core.xml (cpsr_flags): Elide "type" and specify
"end" in all fields.
* features/aarch64.c: Regenerate.
* features/i386/32bit-mpx.xml (_bndcfgu): Specify type of "preserved"
and "enabled" fields. Correct size of "enabled" field.
* features/i386/64bit-mpx.xml (_bndcfgu): Specify type of "preserved"
and "enabled" fields.
* features/i386/i386-avx-mpx-linux.c: Regenerate.
* features/i386/i386-avx-mpx.c: Regenerate.
* features/i386/i386-avx512-linux.c: Regenerate.
* features/i386/i386-avx512.c: Regenerate.
* features/i386/i386-mpx-linux.c: Regenerate.
* features/i386/i386-mpx.c: Regenerate.
* features/arc-arcompact.c: Regenerate.
* features/arc-v2.c: Regenerate.
* xml-tdesc.c (tdesc_start_field): Require "end" spec. Single bit
fields default to "bool" type.
Revert 2016-03-15 Doug Evans <dje@google.com>
* features/i386/32bit-core.xml (i386_eflags): Remove "end" spec.
* features/i386/32bit-sse.xml (i386_eflags): Ditto.
* features/i386/64bit-core.xml (i386_eflags): Ditto.
* features/i386/64bit-sse.xml (i386_eflags): Ditto.
* features/i386/x32-core.xml (i386_eflags): Ditto.
gdb/doc/ChangeLog:
2016-10-06 Doug Evans <dje@google.com>
* gdb.texinfo (Target Description Format): Update docs on "end"
field spec and field default type.
gdb/testsuite/ChangeLog:
2016-10-06 Doug Evans <dje@google.com>
* gdb.xml/extra-regs.xml: Update, end field now required, default type
for single bitfields is bool.
* gdb.xml/tdesc-regs.exp: Ditto.
This reverts commit a4d9ba85 - 'AARCH64: Change cpsr type to be
64bit.'.
Even though Linux's ptrace exposes CPSR as 64-bit, CPSR is really
32-bit, and basing GDB's fundamentals on a particular OS's ptrace(2)
implementation is a bad idea.
In addition, while that commit intended to fix big endian Aarch64, it
ended up breaking floating point debugging against GDBserver, for both
big and little endian, because it changed the CPSR to be 64-bit in the
features/aarch64-core.xml file, but missed regenerating the
regformats/aarch64.dat file. If we generate it now, we see this:
diff --git c/gdb/regformats/aarch64.dat w/gdb/regformats/aarch64.dat
index afe1028..0d32183 100644
--- c/gdb/regformats/aarch64.dat
+++ w/gdb/regformats/aarch64.dat
@@ -35,7 +35,7 @@ expedite:x29,sp,pc
64:x30
64:sp
64:pc
-32:cpsr
+64:cpsr
128:v0
128:v1
128:v2
IOW, that commit left regformats/aarch64.dat still considering CPSR as
32-bits. regformats/aarch64.dat is used by GDBserver for its internal
regcache layout, and for the g/G packet register block. See the
generated aarch64.c file in GDBserver's build dir.
So the target description xml file that GDBserver reports to GDB is
now claiming that CPSR is 64-bit, but what GDBserver actually puts in
the g/G register packets is 32-bits. Because GDB thinks CPSR is
64-bit (because that's what the XML description says), GDB will be
reading the remaining 32-bit bits of CPSR out of v0 (the register
immediately afterwards), and then all the registers that follow CPSR
in the register packet end up wrong in GDB, because they're being read
from the wrong offsets...
gdb/
2014-10-01 Pedro Alves <palves@redhat.com>
* features/aarch64-core.xml (cpsr): Change back to 32-bit.
* features/aarch64.c: Regenerate.
