Takes an optional extra argument for the return address so that the
stack parser has a chance to use instruction-dependent interpretation
of the frame to find parent frames.
Implemented only on Alpha for now, which needs it. Other
architectures just ignore the extra argument.
PR port-alpha/57716
XXX pullup-10
XXX pullup-9
XXX pullup-8
- Allocate only one struct pipe not two (no need to be bidirectional here).
- Then use f_flag (FREAD/FWRITE) to figure out what to do in the fileops.
- Never wake the other side or acquire long-term (I/O) lock unless needed.
- Whenever possible, defer wakeups until after locks have been released.
- Do some things locklessly in pipe_ioctl() and pipe_poll().
Some notable results:
- -30% latency on a 486DX2/66 doing 1 byte ping-pong within a single process.
- 2.5x less lock contention during "make cleandir" of src on a 48 CPU machine.
- 1.5x bandwith with 1kB messages on the same 48 CPU machine (8kB: same b/w).
log() takes a 'int level' first argument, that must be supplied.
add an inline wrapper that calls vlog() with LOG_INFO, and the
supplied va_list.
(not noticed because this macro is not used anywhere in src but
i have a use in some uncommited code, that now failed to compile.)
or the user's terminal.
kind of wrong to be called db_*() when they'll typically be used
outside of ddb itself, but db_stacktrace() itself is no different.
fix this by making the stack trace support separate from ddb?
show arptab command of ddb is now inappropriate because it actually dumps
routes but arp entries aren't routes anymore. So rename it to show routes
and move the code from if_arp.c to route.c.
ok christos@
usage: show proc [/a] [/p] address|pid
/a == argument is an address of any lwp
/p == argument is a pid [default]
From: Vladimir Kirillov proger at wilab dot org dot ua
- reimplement vmem sanity checks with less code duplication.
- reimplement ddb vmem-related commands in a more consistent ways.
remove automatic whatis.
Seems to be quite stable. Some work still left to do.
Please note, that syscalls are not yet MP-safe, because
of the file and vnode subsystems.
Reviewed by: <tech-kern>, <ad>
to select the right format string (at compile time) when displaying
variables of type db_expr_t.
This fixes a problem where ddb(4) would only display the low 32-bits
of registers for an ILP32 kernel on SH5, even though registers
(and db_expr_t) are always 64-bits wide.
Make some variables and functions static when not used outside of a module.
Make variables in headers extern.
Delete the unused db_find_watchpoint() function.
and link it directly to db_command_table[] so that it's not necessary
to do this at runtime. Make db_machine_command_table[] const on all ports.
g/c now unneded stuff, like db_machine_commands_install(), db_machine_init()
Patch written by enami.
from db_stack_trace_cmd() to db_stack_trace_print(),
and add an additional argument, a function pointer for an
output routine (i.e. printf() or db_printf()).
Add db_stack_trace_cmd() in db_command.[ch], calling
db_stack_trace_print() with db_printf() as the printer.
Move count==-1 special handling from db_stack_trace_print() [nee
db_stack_trace_cmd()] to db_stack_trace_cmd() [nascent here].
Again, I'm unable to test compilation on all affected platforms,
so advance apologies for potential brokenness.
riastradh