gdb/nat/linux-osdata.c - gdb
Global variables defined
Data types defined
Functions defined
Macros defined
Source code
- #include "common-defs.h"
- #include "linux-osdata.h"
- #include <sys/types.h>
- #include <sys/sysinfo.h>
- #include <ctype.h>
- #include <utmp.h>
- #include <time.h>
- #include <unistd.h>
- #include <pwd.h>
- #include <grp.h>
- #include <netdb.h>
- #include <netinet/in.h>
- #include <arpa/inet.h>
- #include "xml-utils.h"
- #include "buffer.h"
- #include <dirent.h>
- #include <sys/stat.h>
- #include "filestuff.h"
- #define NAMELEN(dirent) strlen ((dirent)->d_name)
- typedef long long PID_T;
- typedef long long TIME_T;
- #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1)
- int
- linux_common_core_of_thread (ptid_t ptid)
- {
- char filename[sizeof ("/proc//task//stat") + 2 * MAX_PID_T_STRLEN];
- FILE *f;
- char *content = NULL;
- char *p;
- char *ts = 0;
- int content_read = 0;
- int i;
- int core;
- sprintf (filename, "/proc/%lld/task/%lld/stat",
- (PID_T) ptid_get_pid (ptid), (PID_T) ptid_get_lwp (ptid));
- f = gdb_fopen_cloexec (filename, "r");
- if (!f)
- return -1;
- for (;;)
- {
- int n;
- content = xrealloc (content, content_read + 1024);
- n = fread (content + content_read, 1, 1024, f);
- content_read += n;
- if (n < 1024)
- {
- content[content_read] = '\0';
- break;
- }
- }
-
- p = strrchr (content, ')');
- if (p != NULL)
- p++;
-
- if (p != NULL)
- p = strtok_r (p, " ", &ts);
- for (i = 0; p != NULL && i != 36; ++i)
- p = strtok_r (NULL, " ", &ts);
- if (p == NULL || sscanf (p, "%d", &core) == 0)
- core = -1;
- xfree (content);
- fclose (f);
- return core;
- }
- static void
- command_from_pid (char *command, int maxlen, PID_T pid)
- {
- char *stat_path = xstrprintf ("/proc/%lld/stat", pid);
- FILE *fp = gdb_fopen_cloexec (stat_path, "r");
- command[0] = '\0';
- if (fp)
- {
-
- char cmd[18];
- PID_T stat_pid;
- int items_read = fscanf (fp, "%lld %17s", &stat_pid, cmd);
- if (items_read == 2 && pid == stat_pid)
- {
- cmd[strlen (cmd) - 1] = '\0';
- strncpy (command, cmd + 1, maxlen);
- }
- fclose (fp);
- }
- else
- {
-
- snprintf (command, maxlen, "%lld", pid);
- }
- command[maxlen - 1] = '\0';
- xfree (stat_path);
- }
- static char *
- commandline_from_pid (PID_T pid)
- {
- char *pathname = xstrprintf ("/proc/%lld/cmdline", pid);
- char *commandline = NULL;
- FILE *f = gdb_fopen_cloexec (pathname, "r");
- if (f)
- {
- size_t len = 0;
- while (!feof (f))
- {
- char buf[1024];
- size_t read_bytes = fread (buf, 1, sizeof (buf), f);
- if (read_bytes)
- {
- commandline = (char *) xrealloc (commandline, len + read_bytes + 1);
- memcpy (commandline + len, buf, read_bytes);
- len += read_bytes;
- }
- }
- fclose (f);
- if (commandline)
- {
- size_t i;
-
- for (i = 0; i < len; ++i)
- if (commandline[i] == '\0')
- commandline[i] = ' ';
- commandline[len] = '\0';
- }
- else
- {
-
- commandline = (char *) xmalloc (32);
- commandline[0] = '[';
- command_from_pid (commandline + 1, 31, pid);
- len = strlen (commandline);
- if (len < 31)
- strcat (commandline, "]");
- }
- }
- xfree (pathname);
- return commandline;
- }
- static void
- user_from_uid (char *user, int maxlen, uid_t uid)
- {
- struct passwd *pwentry = getpwuid (uid);
- if (pwentry)
- {
- strncpy (user, pwentry->pw_name, maxlen);
-
- user[maxlen - 1] = '\0';
- }
- else
- user[0] = '\0';
- }
- static int
- get_process_owner (uid_t *owner, PID_T pid)
- {
- struct stat statbuf;
- char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN];
- sprintf (procentry, "/proc/%lld", pid);
- if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode))
- {
- *owner = statbuf.st_uid;
- return 0;
- }
- else
- return -1;
- }
- static int
- get_cores_used_by_process (PID_T pid, int *cores, const int num_cores)
- {
- char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1];
- DIR *dir;
- struct dirent *dp;
- int task_count = 0;
- sprintf (taskdir, "/proc/%lld/task", pid);
- dir = opendir (taskdir);
- if (dir)
- {
- while ((dp = readdir (dir)) != NULL)
- {
- PID_T tid;
- int core;
- if (!isdigit (dp->d_name[0])
- || NAMELEN (dp) > MAX_PID_T_STRLEN)
- continue;
- sscanf (dp->d_name, "%lld", &tid);
- core = linux_common_core_of_thread (ptid_build ((pid_t) pid,
- (pid_t) tid, 0));
- if (core >= 0 && core < num_cores)
- {
- ++cores[core];
- ++task_count;
- }
- }
- closedir (dir);
- }
- return task_count;
- }
- static LONGEST
- linux_xfer_osdata_processes (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
-
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- DIR *dirp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"processes\">\n");
- dirp = opendir ("/proc");
- if (dirp)
- {
- const int num_cores = sysconf (_SC_NPROCESSORS_ONLN);
- struct dirent *dp;
- while ((dp = readdir (dirp)) != NULL)
- {
- PID_T pid;
- uid_t owner;
- char user[UT_NAMESIZE];
- char *command_line;
- int *cores;
- int task_count;
- char *cores_str;
- int i;
- if (!isdigit (dp->d_name[0])
- || NAMELEN (dp) > MAX_PID_T_STRLEN)
- continue;
- sscanf (dp->d_name, "%lld", &pid);
- command_line = commandline_from_pid (pid);
- if (get_process_owner (&owner, pid) == 0)
- user_from_uid (user, sizeof (user), owner);
- else
- strcpy (user, "?");
-
- cores = (int *) xcalloc (num_cores, sizeof (int));
- task_count = get_cores_used_by_process (pid, cores, num_cores);
- cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1);
- for (i = 0; i < num_cores && task_count > 0; ++i)
- if (cores[i])
- {
- char core_str[sizeof ("4294967295")];
- sprintf (core_str, "%d", i);
- strcat (cores_str, core_str);
- task_count -= cores[i];
- if (task_count > 0)
- strcat (cores_str, ",");
- }
- xfree (cores);
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"pid\">%lld</column>"
- "<column name=\"user\">%s</column>"
- "<column name=\"command\">%s</column>"
- "<column name=\"cores\">%s</column>"
- "</item>",
- pid,
- user,
- command_line ? command_line : "",
- cores_str);
- xfree (command_line);
- xfree (cores_str);
- }
- closedir (dirp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static int
- compare_processes (const void *process1, const void *process2)
- {
- PID_T pid1 = *((PID_T *) process1);
- PID_T pid2 = *((PID_T *) process2);
- PID_T pgid1 = *((PID_T *) process1 + 1);
- PID_T pgid2 = *((PID_T *) process2 + 1);
-
- if (pgid1 < pgid2)
- return -1;
- else if (pgid1 > pgid2)
- return 1;
- else
- {
-
- if (pid1 == pgid1)
- return -1;
- else if (pid2 == pgid2)
- return 1;
- else if (pid1 < pid2)
- return -1;
- else if (pid1 > pid2)
- return 1;
- else
- return 0;
- }
- }
- static LONGEST
- linux_xfer_osdata_processgroups (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
-
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- DIR *dirp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n");
- dirp = opendir ("/proc");
- if (dirp)
- {
- struct dirent *dp;
- const size_t list_block_size = 512;
- PID_T *process_list = (PID_T *) xmalloc (list_block_size * 2 * sizeof (PID_T));
- size_t process_count = 0;
- size_t i;
-
- while ((dp = readdir (dirp)) != NULL)
- {
- PID_T pid, pgid;
- if (!isdigit (dp->d_name[0])
- || NAMELEN (dp) > MAX_PID_T_STRLEN)
- continue;
- sscanf (dp->d_name, "%lld", &pid);
- pgid = getpgid (pid);
- if (pgid > 0)
- {
- process_list[2 * process_count] = pid;
- process_list[2 * process_count + 1] = pgid;
- ++process_count;
-
- if (process_count % list_block_size == 0)
- process_list = (PID_T *) xrealloc (
- process_list,
- (process_count + list_block_size)
- * 2 * sizeof (PID_T));
- }
- }
- closedir (dirp);
-
- qsort (process_list, process_count, 2 * sizeof (PID_T),
- compare_processes);
- for (i = 0; i < process_count; ++i)
- {
- PID_T pid = process_list[2 * i];
- PID_T pgid = process_list[2 * i + 1];
- char leader_command[32];
- char *command_line;
- command_from_pid (leader_command, sizeof (leader_command), pgid);
- command_line = commandline_from_pid (pid);
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"pgid\">%lld</column>"
- "<column name=\"leader command\">%s</column>"
- "<column name=\"pid\">%lld</column>"
- "<column name=\"command line\">%s</column>"
- "</item>",
- pgid,
- leader_command,
- pid,
- command_line ? command_line : "");
- xfree (command_line);
- }
- xfree (process_list);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static LONGEST
- linux_xfer_osdata_threads (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
-
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- DIR *dirp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"threads\">\n");
- dirp = opendir ("/proc");
- if (dirp)
- {
- struct dirent *dp;
- while ((dp = readdir (dirp)) != NULL)
- {
- struct stat statbuf;
- char procentry[sizeof ("/proc/4294967295")];
- if (!isdigit (dp->d_name[0])
- || NAMELEN (dp) > sizeof ("4294967295") - 1)
- continue;
- sprintf (procentry, "/proc/%s", dp->d_name);
- if (stat (procentry, &statbuf) == 0
- && S_ISDIR (statbuf.st_mode))
- {
- DIR *dirp2;
- char *pathname;
- PID_T pid;
- char command[32];
- pathname = xstrprintf ("/proc/%s/task", dp->d_name);
- pid = atoi (dp->d_name);
- command_from_pid (command, sizeof (command), pid);
- dirp2 = opendir (pathname);
- if (dirp2)
- {
- struct dirent *dp2;
- while ((dp2 = readdir (dirp2)) != NULL)
- {
- PID_T tid;
- int core;
- if (!isdigit (dp2->d_name[0])
- || NAMELEN (dp2) > sizeof ("4294967295") - 1)
- continue;
- tid = atoi (dp2->d_name);
- core = linux_common_core_of_thread (ptid_build (pid, tid, 0));
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"pid\">%lld</column>"
- "<column name=\"command\">%s</column>"
- "<column name=\"tid\">%lld</column>"
- "<column name=\"core\">%d</column>"
- "</item>",
- pid,
- command,
- tid,
- core);
- }
- closedir (dirp2);
- }
- xfree (pathname);
- }
- }
- closedir (dirp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static LONGEST
- linux_xfer_osdata_fds (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
-
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- DIR *dirp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"files\">\n");
- dirp = opendir ("/proc");
- if (dirp)
- {
- struct dirent *dp;
- while ((dp = readdir (dirp)) != NULL)
- {
- struct stat statbuf;
- char procentry[sizeof ("/proc/4294967295")];
- if (!isdigit (dp->d_name[0])
- || NAMELEN (dp) > sizeof ("4294967295") - 1)
- continue;
- sprintf (procentry, "/proc/%s", dp->d_name);
- if (stat (procentry, &statbuf) == 0
- && S_ISDIR (statbuf.st_mode))
- {
- char *pathname;
- DIR *dirp2;
- PID_T pid;
- char command[32];
- pid = atoi (dp->d_name);
- command_from_pid (command, sizeof (command), pid);
- pathname = xstrprintf ("/proc/%s/fd", dp->d_name);
- dirp2 = opendir (pathname);
- if (dirp2)
- {
- struct dirent *dp2;
- while ((dp2 = readdir (dirp2)) != NULL)
- {
- char *fdname;
- char buf[1000];
- ssize_t rslt;
- if (!isdigit (dp2->d_name[0]))
- continue;
- fdname = xstrprintf ("%s/%s", pathname, dp2->d_name);
- rslt = readlink (fdname, buf, sizeof (buf) - 1);
- if (rslt >= 0)
- buf[rslt] = '\0';
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"pid\">%s</column>"
- "<column name=\"command\">%s</column>"
- "<column name=\"file descriptor\">%s</column>"
- "<column name=\"name\">%s</column>"
- "</item>",
- dp->d_name,
- command,
- dp2->d_name,
- (rslt >= 0 ? buf : dp2->d_name));
- }
- closedir (dirp2);
- }
- xfree (pathname);
- }
- }
- closedir (dirp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static const char *
- format_socket_state (unsigned char state)
- {
-
- enum {
- TCP_ESTABLISHED = 1,
- TCP_SYN_SENT,
- TCP_SYN_RECV,
- TCP_FIN_WAIT1,
- TCP_FIN_WAIT2,
- TCP_TIME_WAIT,
- TCP_CLOSE,
- TCP_CLOSE_WAIT,
- TCP_LAST_ACK,
- TCP_LISTEN,
- TCP_CLOSING
- };
- switch (state)
- {
- case TCP_ESTABLISHED:
- return "ESTABLISHED";
- case TCP_SYN_SENT:
- return "SYN_SENT";
- case TCP_SYN_RECV:
- return "SYN_RECV";
- case TCP_FIN_WAIT1:
- return "FIN_WAIT1";
- case TCP_FIN_WAIT2:
- return "FIN_WAIT2";
- case TCP_TIME_WAIT:
- return "TIME_WAIT";
- case TCP_CLOSE:
- return "CLOSE";
- case TCP_CLOSE_WAIT:
- return "CLOSE_WAIT";
- case TCP_LAST_ACK:
- return "LAST_ACK";
- case TCP_LISTEN:
- return "LISTEN";
- case TCP_CLOSING:
- return "CLOSING";
- default:
- return "(unknown)";
- }
- }
- union socket_addr
- {
- struct sockaddr sa;
- struct sockaddr_in sin;
- struct sockaddr_in6 sin6;
- };
- static void
- print_sockets (unsigned short family, int tcp, struct buffer *buffer)
- {
- const char *proc_file;
- FILE *fp;
- if (family == AF_INET)
- proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp";
- else if (family == AF_INET6)
- proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6";
- else
- return;
- fp = gdb_fopen_cloexec (proc_file, "r");
- if (fp)
- {
- char buf[8192];
- do
- {
- if (fgets (buf, sizeof (buf), fp))
- {
- uid_t uid;
- unsigned int local_port, remote_port, state;
- char local_address[NI_MAXHOST], remote_address[NI_MAXHOST];
- int result;
- #if NI_MAXHOST <= 32
- #error "local_address and remote_address buffers too small"
- #endif
- result = sscanf (buf,
- "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n",
- local_address, &local_port,
- remote_address, &remote_port,
- &state,
- &uid);
- if (result == 6)
- {
- union socket_addr locaddr, remaddr;
- size_t addr_size;
- char user[UT_NAMESIZE];
- char local_service[NI_MAXSERV], remote_service[NI_MAXSERV];
- if (family == AF_INET)
- {
- sscanf (local_address, "%X",
- &locaddr.sin.sin_addr.s_addr);
- sscanf (remote_address, "%X",
- &remaddr.sin.sin_addr.s_addr);
- locaddr.sin.sin_port = htons (local_port);
- remaddr.sin.sin_port = htons (remote_port);
- addr_size = sizeof (struct sockaddr_in);
- }
- else
- {
- sscanf (local_address, "%8X%8X%8X%8X",
- locaddr.sin6.sin6_addr.s6_addr32,
- locaddr.sin6.sin6_addr.s6_addr32 + 1,
- locaddr.sin6.sin6_addr.s6_addr32 + 2,
- locaddr.sin6.sin6_addr.s6_addr32 + 3);
- sscanf (remote_address, "%8X%8X%8X%8X",
- remaddr.sin6.sin6_addr.s6_addr32,
- remaddr.sin6.sin6_addr.s6_addr32 + 1,
- remaddr.sin6.sin6_addr.s6_addr32 + 2,
- remaddr.sin6.sin6_addr.s6_addr32 + 3);
- locaddr.sin6.sin6_port = htons (local_port);
- remaddr.sin6.sin6_port = htons (remote_port);
- locaddr.sin6.sin6_flowinfo = 0;
- remaddr.sin6.sin6_flowinfo = 0;
- locaddr.sin6.sin6_scope_id = 0;
- remaddr.sin6.sin6_scope_id = 0;
- addr_size = sizeof (struct sockaddr_in6);
- }
- locaddr.sa.sa_family = remaddr.sa.sa_family = family;
- result = getnameinfo (&locaddr.sa, addr_size,
- local_address, sizeof (local_address),
- local_service, sizeof (local_service),
- NI_NUMERICHOST | NI_NUMERICSERV
- | (tcp ? 0 : NI_DGRAM));
- if (result)
- continue;
- result = getnameinfo (&remaddr.sa, addr_size,
- remote_address,
- sizeof (remote_address),
- remote_service,
- sizeof (remote_service),
- NI_NUMERICHOST | NI_NUMERICSERV
- | (tcp ? 0 : NI_DGRAM));
- if (result)
- continue;
- user_from_uid (user, sizeof (user), uid);
- buffer_xml_printf (
- buffer,
- "<item>"
- "<column name=\"local address\">%s</column>"
- "<column name=\"local port\">%s</column>"
- "<column name=\"remote address\">%s</column>"
- "<column name=\"remote port\">%s</column>"
- "<column name=\"state\">%s</column>"
- "<column name=\"user\">%s</column>"
- "<column name=\"family\">%s</column>"
- "<column name=\"protocol\">%s</column>"
- "</item>",
- local_address,
- local_service,
- remote_address,
- remote_service,
- format_socket_state (state),
- user,
- (family == AF_INET) ? "INET" : "INET6",
- tcp ? "STREAM" : "DGRAM");
- }
- }
- }
- while (!feof (fp));
- fclose (fp);
- }
- }
- static LONGEST
- linux_xfer_osdata_isockets (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n");
- print_sockets (AF_INET, 1, &buffer);
- print_sockets (AF_INET, 0, &buffer);
- print_sockets (AF_INET6, 1, &buffer);
- print_sockets (AF_INET6, 0, &buffer);
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static void
- time_from_time_t (char *time, int maxlen, TIME_T seconds)
- {
- if (!seconds)
- time[0] = '\0';
- else
- {
- time_t t = (time_t) seconds;
- strncpy (time, ctime (&t), maxlen);
- time[maxlen - 1] = '\0';
- }
- }
- static void
- group_from_gid (char *group, int maxlen, gid_t gid)
- {
- struct group *grentry = getgrgid (gid);
- if (grentry)
- {
- strncpy (group, grentry->gr_name, maxlen);
-
- group[maxlen - 1] = '\0';
- }
- else
- group[0] = '\0';
- }
- static LONGEST
- linux_xfer_osdata_shm (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- FILE *fp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n");
- fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r");
- if (fp)
- {
- char buf[8192];
- do
- {
- if (fgets (buf, sizeof (buf), fp))
- {
- key_t key;
- uid_t uid, cuid;
- gid_t gid, cgid;
- PID_T cpid, lpid;
- int shmid, size, nattch;
- TIME_T atime, dtime, ctime;
- unsigned int perms;
- int items_read;
- items_read = sscanf (buf,
- "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld",
- &key, &shmid, &perms, &size,
- &cpid, &lpid,
- &nattch,
- &uid, &gid, &cuid, &cgid,
- &atime, &dtime, &ctime);
- if (items_read == 14)
- {
- char user[UT_NAMESIZE], group[UT_NAMESIZE];
- char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE];
- char ccmd[32], lcmd[32];
- char atime_str[32], dtime_str[32], ctime_str[32];
- user_from_uid (user, sizeof (user), uid);
- group_from_gid (group, sizeof (group), gid);
- user_from_uid (cuser, sizeof (cuser), cuid);
- group_from_gid (cgroup, sizeof (cgroup), cgid);
- command_from_pid (ccmd, sizeof (ccmd), cpid);
- command_from_pid (lcmd, sizeof (lcmd), lpid);
- time_from_time_t (atime_str, sizeof (atime_str), atime);
- time_from_time_t (dtime_str, sizeof (dtime_str), dtime);
- time_from_time_t (ctime_str, sizeof (ctime_str), ctime);
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"key\">%d</column>"
- "<column name=\"shmid\">%d</column>"
- "<column name=\"permissions\">%o</column>"
- "<column name=\"size\">%d</column>"
- "<column name=\"creator command\">%s</column>"
- "<column name=\"last op. command\">%s</column>"
- "<column name=\"num attached\">%d</column>"
- "<column name=\"user\">%s</column>"
- "<column name=\"group\">%s</column>"
- "<column name=\"creator user\">%s</column>"
- "<column name=\"creator group\">%s</column>"
- "<column name=\"last shmat() time\">%s</column>"
- "<column name=\"last shmdt() time\">%s</column>"
- "<column name=\"last shmctl() time\">%s</column>"
- "</item>",
- key,
- shmid,
- perms,
- size,
- ccmd,
- lcmd,
- nattch,
- user,
- group,
- cuser,
- cgroup,
- atime_str,
- dtime_str,
- ctime_str);
- }
- }
- }
- while (!feof (fp));
- fclose (fp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static LONGEST
- linux_xfer_osdata_sem (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- FILE *fp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n");
- fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r");
- if (fp)
- {
- char buf[8192];
- do
- {
- if (fgets (buf, sizeof (buf), fp))
- {
- key_t key;
- uid_t uid, cuid;
- gid_t gid, cgid;
- unsigned int perms, nsems;
- int semid;
- TIME_T otime, ctime;
- int items_read;
- items_read = sscanf (buf,
- "%d %d %o %u %d %d %d %d %lld %lld",
- &key, &semid, &perms, &nsems,
- &uid, &gid, &cuid, &cgid,
- &otime, &ctime);
- if (items_read == 10)
- {
- char user[UT_NAMESIZE], group[UT_NAMESIZE];
- char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE];
- char otime_str[32], ctime_str[32];
- user_from_uid (user, sizeof (user), uid);
- group_from_gid (group, sizeof (group), gid);
- user_from_uid (cuser, sizeof (cuser), cuid);
- group_from_gid (cgroup, sizeof (cgroup), cgid);
- time_from_time_t (otime_str, sizeof (otime_str), otime);
- time_from_time_t (ctime_str, sizeof (ctime_str), ctime);
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"key\">%d</column>"
- "<column name=\"semid\">%d</column>"
- "<column name=\"permissions\">%o</column>"
- "<column name=\"num semaphores\">%u</column>"
- "<column name=\"user\">%s</column>"
- "<column name=\"group\">%s</column>"
- "<column name=\"creator user\">%s</column>"
- "<column name=\"creator group\">%s</column>"
- "<column name=\"last semop() time\">%s</column>"
- "<column name=\"last semctl() time\">%s</column>"
- "</item>",
- key,
- semid,
- perms,
- nsems,
- user,
- group,
- cuser,
- cgroup,
- otime_str,
- ctime_str);
- }
- }
- }
- while (!feof (fp));
- fclose (fp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static LONGEST
- linux_xfer_osdata_msg (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- FILE *fp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n");
- fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r");
- if (fp)
- {
- char buf[8192];
- do
- {
- if (fgets (buf, sizeof (buf), fp))
- {
- key_t key;
- PID_T lspid, lrpid;
- uid_t uid, cuid;
- gid_t gid, cgid;
- unsigned int perms, cbytes, qnum;
- int msqid;
- TIME_T stime, rtime, ctime;
- int items_read;
- items_read = sscanf (buf,
- "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld",
- &key, &msqid, &perms, &cbytes, &qnum,
- &lspid, &lrpid, &uid, &gid, &cuid, &cgid,
- &stime, &rtime, &ctime);
- if (items_read == 14)
- {
- char user[UT_NAMESIZE], group[UT_NAMESIZE];
- char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE];
- char lscmd[32], lrcmd[32];
- char stime_str[32], rtime_str[32], ctime_str[32];
- user_from_uid (user, sizeof (user), uid);
- group_from_gid (group, sizeof (group), gid);
- user_from_uid (cuser, sizeof (cuser), cuid);
- group_from_gid (cgroup, sizeof (cgroup), cgid);
- command_from_pid (lscmd, sizeof (lscmd), lspid);
- command_from_pid (lrcmd, sizeof (lrcmd), lrpid);
- time_from_time_t (stime_str, sizeof (stime_str), stime);
- time_from_time_t (rtime_str, sizeof (rtime_str), rtime);
- time_from_time_t (ctime_str, sizeof (ctime_str), ctime);
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"key\">%d</column>"
- "<column name=\"msqid\">%d</column>"
- "<column name=\"permissions\">%o</column>"
- "<column name=\"num used bytes\">%u</column>"
- "<column name=\"num messages\">%u</column>"
- "<column name=\"last msgsnd() command\">%s</column>"
- "<column name=\"last msgrcv() command\">%s</column>"
- "<column name=\"user\">%s</column>"
- "<column name=\"group\">%s</column>"
- "<column name=\"creator user\">%s</column>"
- "<column name=\"creator group\">%s</column>"
- "<column name=\"last msgsnd() time\">%s</column>"
- "<column name=\"last msgrcv() time\">%s</column>"
- "<column name=\"last msgctl() time\">%s</column>"
- "</item>",
- key,
- msqid,
- perms,
- cbytes,
- qnum,
- lscmd,
- lrcmd,
- user,
- group,
- cuser,
- cgroup,
- stime_str,
- rtime_str,
- ctime_str);
- }
- }
- }
- while (!feof (fp));
- fclose (fp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- static LONGEST
- linux_xfer_osdata_modules (gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- FILE *fp;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"modules\">\n");
- fp = gdb_fopen_cloexec ("/proc/modules", "r");
- if (fp)
- {
- char buf[8192];
- do
- {
- if (fgets (buf, sizeof (buf), fp))
- {
- char *name, *dependencies, *status, *tmp;
- unsigned int size;
- unsigned long long address;
- int uses;
- name = strtok (buf, " ");
- if (name == NULL)
- continue;
- tmp = strtok (NULL, " ");
- if (tmp == NULL)
- continue;
- if (sscanf (tmp, "%u", &size) != 1)
- continue;
- tmp = strtok (NULL, " ");
- if (tmp == NULL)
- continue;
- if (sscanf (tmp, "%d", &uses) != 1)
- continue;
- dependencies = strtok (NULL, " ");
- if (dependencies == NULL)
- continue;
- status = strtok (NULL, " ");
- if (status == NULL)
- continue;
- tmp = strtok (NULL, "\n");
- if (tmp == NULL)
- continue;
- if (sscanf (tmp, "%llx", &address) != 1)
- continue;
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"name\">%s</column>"
- "<column name=\"size\">%u</column>"
- "<column name=\"num uses\">%d</column>"
- "<column name=\"dependencies\">%s</column>"
- "<column name=\"status\">%s</column>"
- "<column name=\"address\">%llx</column>"
- "</item>",
- name,
- size,
- uses,
- dependencies,
- status,
- address);
- }
- }
- while (!feof (fp));
- fclose (fp);
- }
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- struct osdata_type {
- char *type;
- char *title;
- char *description;
- LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len);
- } osdata_table[] = {
- { "processes", "Processes", "Listing of all processes",
- linux_xfer_osdata_processes },
- { "procgroups", "Process groups", "Listing of all process groups",
- linux_xfer_osdata_processgroups },
- { "threads", "Threads", "Listing of all threads",
- linux_xfer_osdata_threads },
- { "files", "File descriptors", "Listing of all file descriptors",
- linux_xfer_osdata_fds },
- { "sockets", "Sockets", "Listing of all internet-domain sockets",
- linux_xfer_osdata_isockets },
- { "shm", "Shared-memory regions", "Listing of all shared-memory regions",
- linux_xfer_osdata_shm },
- { "semaphores", "Semaphores", "Listing of all semaphores",
- linux_xfer_osdata_sem },
- { "msg", "Message queues", "Listing of all message queues",
- linux_xfer_osdata_msg },
- { "modules", "Kernel modules", "Listing of all loaded kernel modules",
- linux_xfer_osdata_modules },
- { NULL, NULL, NULL }
- };
- LONGEST
- linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf,
- ULONGEST offset, ULONGEST len)
- {
- if (!annex || *annex == '\0')
- {
- static const char *buf;
- static LONGEST len_avail = -1;
- static struct buffer buffer;
- if (offset == 0)
- {
- int i;
- if (len_avail != -1 && len_avail != 0)
- buffer_free (&buffer);
- len_avail = 0;
- buf = NULL;
- buffer_init (&buffer);
- buffer_grow_str (&buffer, "<osdata type=\"types\">\n");
- for (i = 0; osdata_table[i].type; ++i)
- buffer_xml_printf (
- &buffer,
- "<item>"
- "<column name=\"Type\">%s</column>"
- "<column name=\"Description\">%s</column>"
- "<column name=\"Title\">%s</column>"
- "</item>",
- osdata_table[i].type,
- osdata_table[i].description,
- osdata_table[i].title);
- buffer_grow_str0 (&buffer, "</osdata>\n");
- buf = buffer_finish (&buffer);
- len_avail = strlen (buf);
- }
- if (offset >= len_avail)
- {
-
- buffer_free (&buffer);
- buf = NULL;
- len_avail = 0;
- return 0;
- }
- if (len > len_avail - offset)
- len = len_avail - offset;
- memcpy (readbuf, buf + offset, len);
- return len;
- }
- else
- {
- int i;
- for (i = 0; osdata_table[i].type; ++i)
- {
- if (strcmp (annex, osdata_table[i].type) == 0)
- {
- gdb_assert (readbuf);
- return (osdata_table[i].getter) (readbuf, offset, len);
- }
- }
- return 0;
- }
- }