[PATCH v4 00/37] ldv/unwind: improve stacktrace feature

Dmitry V. Levin ldv at altlinux.org
Tue May 13 23:58:22 UTC 2014


On Wed, Apr 16, 2014 at 03:32:58PM +0900, Masatake YAMATO wrote:
> This patch set is for improving stacktrace feature.
> The review result of Dmitry V. Levin <ldv at altlinux.org> are 
> reflected.
> 
> You can try the patch incremental. About any n (0 < n < 38), you can
> apply patches from 1 to n to the source tree, compile it and run ./strace.

Thanks.  I've pushed this to ldv/unwind branch with minimal changes:

> Masatake YAMATO (37):
>   unwind: fix a bug in range updating of binary search
>   unwind: make alloc_mmap_cache unwind.c local
>   unwind: delete mmap cache in free_libunwind_ui
>   unwind: add unwind_ as prefix to functions exported from unwind.c
>   unwind: rename unwind_delete_mmap_cache to unwind_cache_invalidate
>   unwind: introduce stacktrace_walker

unchanged or with slight commit message corrections

>   unwind: introduce unwind.c own debug macro

removed trailing semicolon

>   unwind: introduce queue_t for capturing stacktrace
>   unwind: consider multi-threading when rebuilding mmap cache
>   unwind: call unwind_tcb_fin before printing detached message
>   unwind: report expected backtracing error
>   unwind: enable dwarf cache of libunwind
>   unwind: introduce markers specifying the needs of special care in
>     unwinding

unchanged or with slight commit message corrections

>   unwind: x86_64: mark system calls with SI and SE
>   unwind: i386: mark system calls with SI and SE
>   unwind: arm: mark system calls with SI and SE
>   unwind: x32: mark system calls with SI and SE
>   unwind: xtensa: mark system calls with SI and SE
>   unwind: tile: mark system calls with SI and SE
>   unwind: sparc: mark system calls with SI and SE
>   unwind: sh64: mark system calls with SI and SE
>   unwind: sh: mark system calls with SI and SE
>   unwind: s390x: mark system calls with SI and SE
>   unwind: s390: mark system calls with SI and SE
>   unwind: powerpc: mark system calls with SI and SE
>   unwind: or1k: mark system calls with SI and SE
>   unwind: mips: mark system calls with SI and SE
>   unwind: microblaze: mark system calls with SI and SE
>   unwind: metag: mark system calls with SI and SE
>   unwind: m68k: mark system calls with SI and SE
>   unwind: hppa: mark system calls with SI and SE
>   unwind: bfin: mark system calls with SI and SE
>   unwind: avr32: mark system calls with SI and SE
>   unwind: arc: mark system calls with SI and SE
>   unwind: alpha: mark system calls with SI and SE
>   unwind: aarch64: mark system calls with SI and SE

replaced with a single commit that does essentially this:
sed -ri '/osf_/{p;d};s/(TM[^,]*)(,[^"]+"[^"]*(mmap|mprotect|munmap|brk|mremap|remap_file_pages))/\1|SI\2/;s/(TI[^,]*)(,[^"]+"[^"]*shm[ad]t)/\1|SI\2/;s/(TP[^,]*)(,[^"]+"[^"]*execv)/\1|SE|SI\2/;s/(TP[^,]*)(,[^"]+"[^"]*exit)/\1|SE\2/' linux/*/syscallent*.h

>   unwind: stacktrace capturing and mmap cache invalidating at
>     trace_syscall_entering

unchanged or with slight commit message corrections

Commit messages of this patchset do not meet our commit log requirements
described in README-hacking; either commit messages have to be corrected
or requirements have to be relaxed.

Besides that, the patchset looks OK for master.


-- 
ldv
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