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ChangeLog
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ChangeLog
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Fri Feb 11 12:51:37 2005 Google Inc. <[email protected]>
* coredumper: initial release:
The coredumper utility allows a running program to generate a
core file without actually crashing. This serves to allow the
programmer to generate a snapshot of a running program's state
at any time.
Mon May 2 07:04:46 2005 Google Inc. <[email protected]>
* coredumper: version 0.2 release
* fixed compilation on icc (simonb)
* added a new WriteCoreDumpLimited() function that allows the
caller to specify the maximum core file size. This is needed to
emulate "ulimit -c". (markus)
Thu Aug 10 12:44:40 2006 Google Inc. <[email protected]>
* coredumper: version 0.3 release
* reorganized the source to make porting and reuse easier.
* ported to ARM.
* core files can now be compressed on-the-fly.
* added support for recent 2.6.x kernels, which subtly changed the
ptrace() API. It used to be possible to PTRACE_ATTACH to threads
in the same process, but newer kernels require making this call
from a separate process. This change is backwards compatible.
* improved compatibility with more (historic) versions of both
libc and of the Linux kernel.
* the convenience methods now enforce more restrictive file
permissions when writing to disk. The caller no longer needs to
adjust the umask() to make file writing secure.
* the coredumper fails gracefully if called when the stack is almost
about to overflow.
* fixed bugs that prevented thread listing on 64bit machines.
* switched to different syscall() functions in order to better
preserve the call stack. Added work-around for broken libc
system headers.
* all assembly code is position-independent.
* the unittest can now be run even if the systems locale is not
English.
Wed Feb 14 14:44:40 2007 Google Inc. <[email protected]>
* fixed some packaging problems with newer versions of RPM
* added assembly version of sys_clone() in order to work around
buggy implementations in glibc.
Thu Feb 15 16:24:32 2007 Google Inc. <[email protected]>
* coredumper: version 1.0 release
* made devel RPMs depend on the runtime-only package.
* fixed signal related system calls on x86_64.
* wrote manual pages.
Tue Feb 20 15:07:03 2007 Google Inc. <[email protected]>
* changed from NT_PRFPXREG to NT_PRXFPREG, as this appears to be
what the kernel and the binary tool chain finally agrees on.
* dump anonymous executable mappins such as the [vdso] segment.
This helps "gdb" in following call chains past the invocation of
signal handlers.
Fri Jan 25 18:36:01 2008 Google Inc. <[email protected]>
* Added kernel data structures to linux_syscall_support.h
* Added some more system calls
* General clean ups and minor bug fixes to linux_syscall_support.h
* Updated MIPS support
* Added PPC support to linux_syscall_support.h (based on the patch at
http://google-perftools.googlegroups.com/web/google-perftools-0.94.1.ppc.patch?gda=k9bft1IAAACubrlYz6X6f2r_QSIc5WKIP3FyvVAXIQ9N70rJj7w7MWG1qiJ7UbTIup-M2XPURDR0OdCHCKqS2f7o1Lzcc8Kg4jvJEVA5r4WYNVZfjSxuln7gCK2zepjMSjyreBgvHJk)
This does not mean that the coredumper works on PPC, yet. That still
requires additional work
* Added linux_syscall_support_unittest.cc
* Updated other files as needed so that they would work with the
changes made to linux_syscall_support.h
Thu Apr 3 14:16:01 2008 Google Inc. <[email protected]>
* coredumper: version 1.2 release
* Added the option to prioritize smaller memory segments when limiting
core dumps.
* Added the option to add user defined notes into the core dump.
* Added a generalized system to be able to combine parameters easily.
* Increased the library version number to 1.0.0 since the interface has
been extended.
* Added vdso segments to the core dump.
* Made the failing thread's registers the first in the core file as
expected by gdb.
Fri Apr 4 09:38:05 2008 Google Inc. <[email protected]>
* coredumper: version 1.2.1 release
* Fixed a problem which occurs if auxv vectors aren't supported.