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Load a memory map associated with a backtrace
|
The backtrace library is an unsupported feature, due to its fragility.
For more information, see
Backtraces
in the QNX Neutrino technotes. |
#include <backtrace.h>
int bt_load_memmap( bt_accessor_t *acc,
bt_memmap_t * memmap );
- acc
- A pointer to a bt_accessor_t structure.
This is an opaque structure that holds the identity of the thread to
backtrace.
- memmap
- A pointer to a location where the function can store the memory map.
libbacktrace
Use the -l backtrace option to
qcc
to link against this library.
The bt_load_memmap() function reads the memory map information
from the process represented by acc, and saves the information
in memmap.
- 0
- Success.
- -1
- An error occurred
(errno
is set).
- EINVAL
- The acc or memmap argument is NULL.
- ENOMEM
- There wasn't enough memory to load the memory map.
This function can also set errno to any of the values that
devctl()
and
open()
can.
QNX Neutrino
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
No |
Thread |
Yes |
bt_get_backtrace(),
bt_init_accessor(),
bt_release_accessor(),
bt_set_flags(),
bt_sprn_memmap(),
bt_sprnf_addrs(),
bt_translate_addrs(),
bt_unload_memmap()
Backtraces
in the QNX Neutrino technotes
pidin backtrace
in the Utilities Reference
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