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/*
* Server-side /proc support for Solaris
*
* Copyright (C) 2007 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <signal.h>
#include <stdarg.h>
#include <sys/types.h>
#include <unistd.h>
#include "ntstatus.h"
#define WIN32_NO_STATUS
#include "winternl.h"
#include "file.h"
#include "process.h"
#include "thread.h"
#ifdef USE_PROCFS
#include <procfs.h>
static int open_proc_as( struct process *process, int flags )
{
char buffer[32];
int fd;
sprintf( buffer, "/proc/%u/as", process->unix_pid );
if ((fd = open( buffer, flags )) == -1) file_set_error();
return fd;
}
static int open_proc_lwpctl( struct thread *thread )
{
char buffer[48];
int fd;
sprintf( buffer, "/proc/%u/lwp/%u/lwpctl", thread->unix_pid, thread->unix_tid );
if ((fd = open( buffer, O_WRONLY )) == -1) file_set_error();
return fd;
}
/* handle a SIGCHLD signal */
void sigchld_callback(void)
{
assert( 0 ); /* should only be called when using ptrace */
}
/* initialize the process tracing mechanism */
void init_tracing_mechanism(void)
{
/* no initialization needed */
}
/* initialize the per-process tracing mechanism */
void init_process_tracing( struct process *process )
{
/* setup is done on-demand */
}
/* terminate the per-process tracing mechanism */
void finish_process_tracing( struct process *process )
{
}
/* send a Unix signal to a specific thread */
int send_thread_signal( struct thread *thread, int sig )
{
int fd = open_proc_lwpctl( thread );
long kill[2];
ssize_t ret;
if (fd == -1) return 0;
kill[0] = PCKILL;
kill[1] = sig;
ret = write( fd, kill, sizeof(kill) );
close( fd );
return (ret == sizeof(kill));
}
/* read data from a process memory space */
int read_process_memory( struct process *process, const void *ptr, size_t size, char *dest )
{
ssize_t ret;
int fd = open_proc_as( process, O_RDONLY );
if (fd == -1) return 0;
ret = pread( fd, dest, size, (off_t)ptr );
close( fd );
if (ret == size) return 1;
if (ret == -1) file_set_error();
else set_error( STATUS_ACCESS_VIOLATION );
return 0;
}
/* write data to a process memory space */
int write_process_memory( struct process *process, void *ptr, size_t size, const char *src )
{
ssize_t ret;
int fd = open_proc_as( process, O_WRONLY );
if (fd == -1) return 0;
ret = pwrite( fd, src, size, (off_t)ptr );
close( fd );
if (ret == size) return 1;
if (ret == -1) file_set_error();
else set_error( STATUS_ACCESS_VIOLATION );
return 0;
}
/* retrieve an LDT selector entry */
void get_selector_entry( struct thread *thread, int entry, unsigned int *base,
unsigned int *limit, unsigned char *flags )
{
ssize_t ret;
off_t pos = (off_t)thread->process->ldt_copy;
int fd = open_proc_as( thread->process, O_RDONLY );
if (fd == -1) return;
ret = pread( fd, base, sizeof(*base), pos + entry*sizeof(int) );
if (ret != sizeof(*base)) goto error;
ret = pread( fd, limit, sizeof(*limit), pos + (8192 + entry)*sizeof(int) );
if (ret != sizeof(*limit)) goto error;
ret = pread( fd, flags, sizeof(*flags), pos + 2*8192*sizeof(int) + entry );
if (ret != sizeof(*flags)) goto error;
close( fd );
return;
error:
if (ret == -1) file_set_error();
else set_error( STATUS_ACCESS_VIOLATION );
close( fd );
}
/* retrieve the thread registers */
void get_thread_context( struct thread *thread, CONTEXT *context, unsigned int flags )
{
/* all other regs are handled on the client side */
assert( (flags | CONTEXT_i386) == CONTEXT_DEBUG_REGISTERS );
/* FIXME: get debug registers */
}
/* set the thread registers */
void set_thread_context( struct thread *thread, const CONTEXT *context, unsigned int flags )
{
/* all other regs are handled on the client side */
assert( (flags | CONTEXT_i386) == CONTEXT_DEBUG_REGISTERS );
/* FIXME: set debug registers */
}
#endif /* USE_PROCFS */
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