Sun Sep 14 16:04:17 2008 Søren Sandmann <sandmann@redhat.com>
* sysprof/module/sysprof-module.c: Update to work with new
vm_operations interface from 2.6.23. Patch from Chris Wilson.
svn path=/trunk/; revision=435
2008-04-30 Owen Taylor <otaylor@redhat.com>
* module/sysprof-module.c: Reorder the tests for
CONFIG_X86 and CONFIG_X86_64 since post 2.6.26, they are
both defined on x86-64 machines.
svn path=/trunk/; revision=419
Sat Mar 29 11:14:38 2008 Søren Sandmann <sandmann@redhat.com>
* unwind.[ch], testunwind.c: Beginning of a dwarf unwinder.
svn path=/trunk/; revision=405
2008-02-16 Soren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (nt_memcpy): Add a memcpy() that uses
nontemporal writes.
(copy_kernel_stack): Add commented-out use of it here.
svn path=/trunk/; revision=396
Sun Nov 18 18:12:09 2007 Søren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (heuristic_trace): Crude heuristic stack
scanning on x86-64.
* module/sysprof-module.c (copy_kernel_stack): New function
svn path=/trunk/; revision=392
2007-11-16 Soren Sandmann <sandmann@daimi.au.dk>
* TODO: updates
* module/sysprof-module.c (sysprof_poll): Only select readable
when there is at least eight traces available
* collector.c (collect_traces): New function, old on_read()
* collector.c (collector_create_profile): Collect traces here as
well.
svn path=/trunk/; revision=388
2007-09-16 Soren Sandmann <sandmann@daimi.au.dk>
* process.c (process_lookup_kernel_symbol): Add support for
looking up kernel symbols from /proc/kallsyms
* sysprof-text.c (dump_data): Print note that the file is being
saved.
* module/sysprof-module.[ch] (timer_notify): Send a copy of the
kernel stack to userspace.
* collector.c: Do kernel symbol lookups.
svn path=/trunk/; revision=372
2007-01-05 Behdad Esfahbod <behdad@gnome.org>
* module/Makefile: Correct $PWD usage, so make install works from
inside module/.
svn path=/trunk/; revision=346
2006-10-26 Soren Sandmann <sandmann@daimi.au.dk>
* module/sysprof-module.h (struct SysprofStackTrace): Increase the
max number of addresses to 1021, reorganise SysprofMmapArea to
make the traces naturally page aligned.
* TODO: Update
2006-10-22 Soren Sandmann <sandmann@daimi.au.dk>
Communicate traces to userspace through shared memory instead of
copying.
* module/sysprof-module.c: Store the traces in a SysprofMmapArea.
(sysprof_mmap): Implement this method.
(sysprof_nopage): Implement this.
(sysprof_read): Just reset the tail pointer and return zero.
* module/sysprof-module.h (struct SysprofMmapArea): New
structure.
* collector.c (collector_stop): Unmap the device
(in_dead_period): New function
(on_read): Read the traces out of mmap()ed area instead of reading
them. Call read() to prevent poll() from firing.
(struct Collector): New members map_area and current.
* Makefile.am (insert-module): Prefix modprobe with /sbin
* collector.c (open_fd): mmap() the sysprof device.
2006-10-07 Soren Sandmann <sandmann@daimi.au.dk>
Deal with address offsets. Address lookup is now:
- First convert the address to an offset into the file
- Then convert to an offset into the text segment
- Then add the load address of the text segment (found in the
debug binary)
- Then finally lookup the result in the symbol table.
* elfparser.c (elf_parser_get_text_offset): New function
* elfparser.c (elf_parser_lookup_symbol): Treat addresses as
offsets into the text segment.
* binfile.c (bin_file_new): Store the offset of the text section
of the actual binary (not the debug one)
(bin_file_lookup_symbol): Subtract text_offset before passing
address to elf parser.
* module/sysprof-module.c: Remove include of linux/config.h
Sat Aug 12 16:13:05 2006 Søren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c: Make n_samples per-cpu. Add an atomic
variable in_timer_notify and use it to lock out simultaneous timer
interrupts.
* stackstash.c (decorate_node): Make decorate_node() static
* TODO
2006-02-17 Bastien Nocera <hadess@hadess.net>
* configure.ac:
* module/sysprof-module.c: (timer_notify), (sysprof_open),
(sysprof_release): more ifdef's to make it work with Red Hat
Enterprise Linux 4's 2.6.9-based kernel
Fri Jan 13 22:59:48 2006 Soeren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (sysprof_open): Initialize retval.
* module/sysprof-module.c (sysprof_read): Copy contents of trace,
not tail to the buffer.
2005-12-20 Kristian Høgsberg <krh@redhat.com>
* module/sysprof-module.c: Remove left over debug print out and
add support for multiple clients (readers).
2005-12-20 Kristian Høgsberg <krh@redhat.com>
* Makefile.am: Dist and install udev rule.
* collector.c: (open_fd):
* sysprof-text.c: (no_module):
* sysprof.c: (on_start_toggled): Update device filename.
* 60-sysprof.rules: New udev rule file to set permissions for
sysprof char device.
* module/sysprof-module.c: Switch kernel module to use a misc char
device instead. Start and stop the timer on device open and
close instead of module load and unload.
Mon Dec 19 15:15:48 2005 Søren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (timer_notify): A few formatting
fixes. Hopefully make it work with x86-64.
Sat Nov 12 19:44:43 2005 Søren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (read_frame): New function that uses
copy_from_user_inatomic() as check_user_pages_readable() has
disappeared in recent kernels.
* module/sysprof-module.c (timer_notify): Use it here.
* TODO: Updates
* configure.ac: Change the wording of the CVS HEAD warning as this
change seems to also have fixed the lockup with rawhide kernels.
Tue Oct 11 22:40:24 2005 Soeren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (SAMPLES_PER_SECOND): Add back these
constants, but this time make sure we won't divide by 0 or
anything like that.
Mon Oct 10 13:00:20 2005 Robert Love <rml@novell.com>
* module/sysprof-module.c: Don't use INTERVAL or SAMPLES_PER_SECOND
now that we use register_timer_hook(), which hits off the timer
interrupt at HZ freqency (1/250 second on x86).
Tue Sep 27 01:33:33 2005 Soeren Sandmann <sandmann@redhat.com>
* process.c (process_lookup_symbol): If the address is 0x01, treat
as kernel, regardless of whether we have a map for that address or
not.
* module/sysprof-module.c (timer_notify): Take a stack trace of
the current process, even when we are in kernel mode. This way we
can assign kernel activity to individual user space stacktraces.
* TODO: updates.
Tue Aug 30 16:57:33 2005 Søren Sandmann <sandmann@redhat.com>
* configure.ac: Complain if we can't find /lib/modules/`uname
-r`/build/Makefile.
* process.c (process_lookup_symbol): Take an address of 0x1 to
mean "in kernel".
* module/sysprof-module.c (timer_notify): When reporting in-kernel
time, give the current pid instead of -1.
* TODO: updates
Mon Aug 1 23:49:51 2005 Soeren Sandmann <sandmann@redhat.com>
* module/sysprof-module.c (REG_INS_PTR): Add support for
amd64/x86-64. Patch from Mike Frysinger.
Sun Jun 19 15:39:50 2005 Søren Sandmann <sandmann@redhat.com>
* sysprof.c (on_about_activated): Add version information
* configure.ac: Bump version to 0.91
* README: Updates
Sat Jun 18 22:45:04 2005 Søren Sandmann <sandmann@redhat.com>
* TODO: Updates
* configure.ac: Check for Linux 2.6.11
* process.c (get_pidname): Present pid=-1 as [kernel].
* module/sysprof-module.c: Use register_timer_hook() instead of
a kernel timer. Set trace.pid to -1 if interrupt happens in
kernel.
