| LIBRTLD_DB(3) | Library Functions Manual | LIBRTLD_DB(3) |
librtld_db —
#include <rtld_db.h>
void
rd_delete(rd_agent_t *rdap);
char *
rd_errstr(rd_err_e rderr);
rd_err_e
rd_event_addr(rd_agent_t *rdap,
rd_event_e event, rd_notify_t *notify);
rd_err_e
rd_event_enable(rd_agent_t *rdap, int
onoff);
rd_err_e
rd_event_getmsg(rd_agent_t *rdap,
rd_event_msg_t *msg);
rd_err_e
rd_init(int version);
typedef int
rl_iter_f(const rd_loadobj_t *, void
*);
rd_err_e
rd_loadobj_iter(rd_agent_t *rdap,
rl_iter_f *cb, void *clnt_data);
void
rd_log(const int onoff);
rd_agent_t *
rd_new(struct proc_handle
*php);
rd_err_e
rd_objpad_enable(rd_agent_t *rdap,
size_t padsize);
rd_err_e
rd_plt_resolution(rd_agent_t *rdap,
uintptr_t pc, struct proc *proc, uintptr_t plt_base,
rd_plt_info_t *rpi);
rd_err_e
rd_reset(rd_agent_t *rdap);
librtld_db library provides a debugging interface to
the run-time linker (rtld). This library must be used along with
libproc(3).
Most library functions take a rd_agent_t argument. This argument is an opaque structure containing information associated with the current status of the agent.
Before you start using librtld_db you
should call rd_init() with the
RD_VERSION argument. This initializes the library to
the correct version your program was compiled with and provides proper ABI
stability.
What follows is a description of what each function.
rd_new() creates a new
librtld_db agent. The php
argument should be the proc_handle you received from
libproc(3).
rd_reset() resets your previously created
agent.
rd_delete() deallocates the resources
associated with the agent.
rd_errstr() returns an error string
describing the error present in rderr.
rd_event_enable() enables reporting of
events. This function always returns RD_OK.
rd_event_addr() returns the event address
corresponding to the event parameter. At the moment we
only report events of type RD_NOTIFY_BPT.
rd_event_getmsg() returns the message
associated with the latest event. At the moment only RD_POSTINIT events are
supported.
rd_loadobj_iter() allows you to iterate
over the program's loaded objects. cb is a callback of
type rl_iter_f().
rd_errstr().
librtld_db library first appeared in
FreeBSD 9.0 and was modeled after the same library
present in the Solaris operating system.
librtld_db library and this manual page were written
by Rui Paulo
<rpaulo@FreeBSD.org>
under sponsorship from the FreeBSD Foundation.
rd_event_enable(),
rd_log(), rd_objpad_enable(),
and rd_plt_resolution() are not yet implemented.
| June 10, 2010 | NetBSD 10.0 |