diff options
Diffstat (limited to 'gdb/gdbserver/linux-low.c')
| -rw-r--r-- | gdb/gdbserver/linux-low.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index 3fa06ec..38dd000 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -2180,6 +2180,44 @@ linux_qxfer_osdata (const char *annex, return len; } +static int +linux_xfer_siginfo (const char *annex, unsigned char *readbuf, + unsigned const char *writebuf, CORE_ADDR offset, int len) +{ + struct siginfo siginfo; + long pid = -1; + + if (current_inferior == NULL) + return -1; + + pid = pid_of (get_thread_process (current_inferior)); + + if (debug_threads) + fprintf (stderr, "%s siginfo for lwp %ld.\n", + readbuf != NULL ? "Reading" : "Writing", + pid); + + if (offset > sizeof (siginfo)) + return -1; + + if (ptrace (PTRACE_GETSIGINFO, pid, 0, &siginfo) != 0) + return -1; + + if (offset + len > sizeof (siginfo)) + len = sizeof (siginfo) - offset; + + if (readbuf != NULL) + memcpy (readbuf, (char *) &siginfo + offset, len); + else + { + memcpy ((char *) &siginfo + offset, writebuf, len); + if (ptrace (PTRACE_SETSIGINFO, pid, 0, &siginfo) != 0) + return -1; + } + + return len; +} + static struct target_ops linux_target_ops = { linux_create_inferior, linux_attach, @@ -2213,6 +2251,7 @@ static struct target_ops linux_target_ops = { NULL, hostio_last_error_from_errno, linux_qxfer_osdata, + linux_xfer_siginfo, }; static void |