PS_PREAD(3PROC) Process Control Library Functions PS_PREAD(3PROC)


NAME


ps_pread, ps_pwrite, ps_pdread, ps_pdwrite, ps_ptread, ps_ptwrite -
interfaces in libthread_db that target process memory access

SYNOPSIS


#include <proc_service.h>

ps_err_e ps_pread(struct ps_prochandle *ph, psaddr_t addr,
void *buf, size_t size);


ps_err_e ps_pwrite(struct ps_prochandle *ph, psaddr_t addr,
const void *buf, size_t size);


ps_err_e ps_pdread(struct ps_prochandle *ph, psaddr_t addr,
void *buf, size_t size);


ps_err_e ps_pdwrite(struct ps_prochandle *ph, psaddr_t addr,
const void *buf, size_t size);


ps_err_e ps_ptread(struct ps_prochandle *ph, psaddr_t addr,
void *buf, size_t size);


ps_err_e ps_ptwrite(struct ps_prochandle *ph, psaddr_t addr,
const void *buf, size_t size);


DESCRIPTION


These routines copy data between the address space of the target process
and the controlling process. ps_pread() copies size bytes from address
addr in the target process into buf in the controlling process.
pr_pwrite() is like ps_pread() except that the direction of the copy is
reversed; data is copied from the controlling process to the target
process.


ps_pdread() and ps_ptread() behave identically to ps_pread().
ps_pdwrite() and ps_ptwrite() behave identically to ps_pwrite(). These
functions can be implemented as simple aliases for the corresponding
primary functions. They are artifacts of history that must be maintained.

RETURN VALUES


PS_OK
The call returned successfully. size bytes were copied.


PS_BADADDR
Some part of the address range from addr through
addr+size-1 is not part of the address space of the target
process.


PS_ERR
The function did not return successfully.


ATTRIBUTES


See attributes(5) for description of the following attributes:


+---------------+-----------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------+
|MT Level | Safe |
+---------------+-----------------+

SEE ALSO


libc_db(3LIB), librtld_db(3LIB), proc_service(3PROC), rtld_db(3EXT),
attributes(5), threads(5)


October 12, 2007 PS_PREAD(3PROC)