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Re: [PATCH v3 1/2] gdb: Add process record and replay support for s390.


Marcin KoÃ?cielnicki <koriakin at 0x04 dot net> wrote:

> gdb/ChangeLog:
> 
> 	PR/18376
> 	* gdb/configure.tgt: Add linux-record.o to s390*-linux.
> 	* gdb/s390-linux-tdep.c: #include "linux-record.h", "record-full.h"
> 	(s390_linux_record_tdep): New static global variable.
> 	(s390x_linux_record_tdep): New static global variable.
> 	(s390_all_but_pc_registers_record): New function.
> 	(s390_canonicalize_syscall): New function.
> 	(s390_linux_syscall_record): New function.
> 	(s390_linux_record_signal): New function.
> 	(s390_record_calc_disp_common): New function.
> 	(s390_record_calc_disp): New function.
> 	(s390_record_calc_disp_vsce): New function.
> 	(s390_record_calc_rl): New function.
> 	(s390_record_gpr_g): New function.
> 	(s390_record_gpr_h): New function.
> 	(s390_record_vr): New function.
> 	(s390_process_record): New function.
> 	(s390_init_linux_record_tdep): New function.
> 	(s390_gdbarch_init): Fill record function slots.
> 
> gdb/testsuite/ChangeLog:
> 
> 	* gdb.reverse/s390-mvcle.c: New test.
> 	* gdb.reverse/s390-mvcle.exp: New file.
> 	* lib/gdb.exp: Enable reverse tests on s390*-linux.
> ---
> First patch fixed according to comments from review.  LCBB also moved to
> 32-bit destination section.  I'm still working on the second patch, and will
> resubmit it later.
> 
> I haven't changed size_msqid_ds and size_shmid_ds - the target-independent
> code for recording ipc operations is horribly broken, and doesn't distinguish
> between calls that should use msqid_ds and msqid64_ds (or msginfo, for that
> matter), using size_msqid_ds either way (same for shm).  Since modern glibc
> uses msqid64_ds, this is the less wrong size to use.  I'll cook up a proper
> fix for the IPC problem soon on all supported targets, for now let's leave
> it as msqid64_ds size.

Ah, I see.  Well, saving a slightly too large size in some cases doesn't
really matter all that much, so I'm fine with this.

The patch is OK.

Thanks again for working on this!

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU/Linux compilers and toolchain
  Ulrich.Weigand@de.ibm.com


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