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[RISU v2 00/17] risu cleanups and improvements
From: |
Richard Henderson |
Subject: |
[RISU v2 00/17] risu cleanups and improvements |
Date: |
Mon, 18 May 2020 19:53:38 -0700 |
This patch set does alter the format of the trace files, and thus
means we'll have to re-generate these. However, the space saved
for sve trace files is significant, so I consider it worthwhile.
In addition, the new --dump option allows one to inspect the
contents of the trace file.
Version 2 adds a number of patches that clean up the whole
reporting of errors thing. This allows us to give sensible
output when things go awry.
If using old trace files with the new risu, you get
mismatch header after 1 checkpoints
header mismatch detail (master : apprentice):
magic: 000000fc vs 52695375
If for somehow you use different risu for master and apprentice
on sockets, you get
i/o error after 1 checkpoints
Which is less helpful, but since the master has not written
enough data to the socket, the apprentice notices and reports
the i/o error before having a look at the header contents.
r~
Richard Henderson (17):
Use bool for tracing variables
Unify master_fd and apprentice_fd to comm_fd
Hoist trace file opening
Adjust tracefile open for write
Use EXIT_FAILURE, EXIT_SUCCESS
Make some risu.c symbols static
Add enum RisuOp
Add enum RisuResult
Unify i/o functions and use RisuResult
Pass non-OK result back through siglongjmp
Always write for --master
Simplify syncing with master
Split RES_MISMATCH for registers and memory
Add magic and size to the trace header
Compute reginfo_size based on the reginfo
aarch64: Reorg sve reginfo to save space
Add --dump option to inspect trace files
risu.h | 88 +++++----
risu_reginfo_aarch64.h | 16 +-
comms.c | 34 ++--
reginfo.c | 274 ++++++++++++++++-----------
risu.c | 409 +++++++++++++++++++++++++----------------
risu_aarch64.c | 6 +-
risu_arm.c | 6 +-
risu_i386.c | 4 +-
risu_m68k.c | 4 +-
risu_ppc64.c | 4 +-
risu_reginfo_aarch64.c | 192 ++++++++++---------
risu_reginfo_arm.c | 6 +-
risu_reginfo_i386.c | 8 +-
risu_reginfo_m68k.c | 6 +-
risu_reginfo_ppc64.c | 6 +-
15 files changed, 635 insertions(+), 428 deletions(-)
--
2.20.1
- [RISU v2 00/17] risu cleanups and improvements,
Richard Henderson <=
- [RISU v2 01/17] Use bool for tracing variables, Richard Henderson, 2020/05/18
- [RISU v2 02/17] Unify master_fd and apprentice_fd to comm_fd, Richard Henderson, 2020/05/18
- [RISU v2 03/17] Hoist trace file opening, Richard Henderson, 2020/05/18
- [RISU v2 04/17] Adjust tracefile open for write, Richard Henderson, 2020/05/18
- [RISU v2 05/17] Use EXIT_FAILURE, EXIT_SUCCESS, Richard Henderson, 2020/05/18