* linux-i386-low.c (ps_get_thread_area): New.

	* linux-x86-64-low.c (ps_get_thread_area): New.
	* linux-low.c: Include <sys/syscall.h>.
	(linux_kill_one_process): Don't kill the first thread here.
	(linux_kill): Kill the first thread here.
	(kill_lwp): New function.
	(send_sigstop, linux_send_signal): Use it.
	* proc-service.c: Clean up #ifdefs.
	(fpregset_info): Delete.
	(ps_lgetregs): Update and enable implementation.
	(ps_lsetregs, ps_lgetfpregs, ps_lsetfpregs): Remove disabled
	implementations.
	* remote-utils.c (struct sym_cache, symbol_cache): New.
	(input_interrupt): Print a clearer message.
	(async_io_enabled): New variable.
	(enable_async_io, disable_async_io): Use it.  Update comments.
	(look_up_one_symbol): Use the symbol cache.
	* thread-db.c (thread_db_look_up_symbols): New function.
	(thread_db_init): Update comments.  Call thread_db_look_up_symbols.

1 files changed, 37 insertions, 1 deletions

diff --git a/gdb/gdbserver/linux-i386-low.c b/gdb/gdbserver/linux-i386-low.c
index b79b601..d8cc4ec 100644
--- a/gdb/gdbserver/linux-i386-low.c
+++ b/gdb/gdbserver/linux-i386-low.c
@@ -1,5 +1,5 @@
 /* GNU/Linux/i386 specific low level interface, for the remote server for GDB.
-   Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002
+   Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2004
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -23,10 +23,30 @@
 #include "linux-low.h"
 #include "i387-fp.h"
 
+/* Correct for all GNU/Linux targets (for quite some time).  */
+#define GDB_GREGSET_T elf_gregset_t
+#define GDB_FPREGSET_T elf_fpregset_t
+
+#ifndef HAVE_ELF_FPREGSET_T
+/* Make sure we have said types.  Not all platforms bring in <linux/elf.h>
+   via <sys/procfs.h>.  */
+#ifdef HAVE_LINUX_ELF_H   
+#include <linux/elf.h>    
+#endif
+#endif
+   
+#include "../gdb_proc_service.h"
+
+#include <sys/ptrace.h>
+
 #ifdef HAVE_SYS_REG_H
 #include <sys/reg.h>
 #endif
 
+#ifndef PTRACE_GET_THREAD_AREA
+#define PTRACE_GET_THREAD_AREA 25
+#endif
+
 /* This module only supports access to the general purpose registers.  */
 
 #define i386_num_regs 16
@@ -43,6 +63,22 @@ static int i386_regmap[] =
   DS * 4, ES * 4, FS * 4, GS * 4
 };
 
+/* Called by libthread_db.  */
+
+ps_err_e
+ps_get_thread_area (const struct ps_prochandle *ph, 
+		    lwpid_t lwpid, int idx, void **base)
+{
+  unsigned int desc[4];
+
+  if (ptrace (PTRACE_GET_THREAD_AREA, lwpid,
+	      (void *) idx, (unsigned long) &desc) < 0)
+    return PS_ERR;
+
+  *(int *)base = desc[1];
+  return PS_OK;
+}
+
 static int
 i386_cannot_store_register (int regno)
 {