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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.
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After commit:
commit 51a948fdf0e14fb69ab9e0c79ae8b2415801f9a3
Date: Mon Jul 20 14:18:04 2020 +0100
gdb: Have allocate_target_description return a unique_ptr
There were a few places where we could (should?) have delayed
releasing the target_desc_up until a little later. This commit
catches these cases.
In the case of ARC, the target_desc_up is now exposed right out to
gdbserver, which means making a small change there too.
There should be no user visible changes after this commit.
gdb/ChangeLog:
* arch/aarch32.c (aarch32_create_target_description): Release the
target_desc_up as late as possible.
* arch/aarch64.c (aarch64_create_target_description): Likewise.
* arch/amd64.c (amd64_create_target_description): Likewise.
* arch/arc.c (arc_create_target_description): Return a
target_desc_up, don't release it.
* arch/arc.h (arc_create_target_description): Update declaration.
(arc_lookup_target_description): Move target_desc_up into the
cache, and return a borrowed pointer.
* arch/arm.c (arm_create_target_description): Release the
target_desc_up as late as possible.
* arch/i386.c (i386_create_target_description): Likewise.
* arch/riscv.h (riscv_create_target_description): Update
declaration to match definition.
* arch/tic6x.c (tic6x_create_target_description): Release the
target_desc_up as late as possible.
gdbserver/ChangeLog:
* linux-arc-low.cc (arc_linux_read_description): Release the
unique_ptr returned from arc_create_target_description.
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This gdbserver implementation supports ARC ABI v3 and v4 (older ARC ABI
versions are not supported by other modern GNU tools or Linux itself).
Gdbserver supports inspection of ARC HS registers R30, R58 and R59 - feature
that has been added to Linux 4.12. Whether gdbserver build will actually
support this feature depends on the version of Linux headers used to build
the server.
v2 [1]:
- Use "this->read_memory ()" instead of "the_target->read_memory ()".
- Remove the unnecessary "arch-arc.o:" target from the "Makefile.in".
- Got rid of "ntohs()" function and added lots of comments about
endianness.
- Clarify why "pc" value is read from and saved to different fields
in user regs struct.
- In function "is_reg_name_available_p()", use a range-based iterator
to loop over the registers.
- Removed mentioning of issue number that was not related to sourceware.
- A few typo's fixed.
[1] Remarks
https://sourceware.org/pipermail/gdb-patches/2020-September/171911.html
https://sourceware.org/pipermail/gdb-patches/2020-September/171919.html
gdbserver/ChangeLog:
* configure.srv: Support ARC architecture.
* Makefile.in: Add linux-arc-low.cc and arch/arc.o.
* linux-arc-low.cc: New file.
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