toolchain/gdb/snapshot/400-mips-nptl-support.patch

2005-03-17  Daniel Jacobowitz  <dan@codesourcery.com>

	* linux-mips-low.c: Include "gdb_proc_service.h".
	(PTRACE_GET_THREAD_AREA): Define.
	(ps_get_thread_area): New function.
	* Makefile.in: Update dependencies for linux-mips-low.o,
	linux-i386-low.o, and linux-x86-64-low.o.

2005-03-17  Daniel Jacobowitz  <dan@codesourcery.com>

	* linux-mips-low.c: Include "gdb_proc_service.h".
	(PTRACE_GET_THREAD_AREA): Define.
	(ps_get_thread_area): New function.
	* Makefile.in (mips-linux-nat.o): Update dependencies.
--
diff -urN gdb-6.3.50.20050915/gdb/Makefile.in gdb-6.3.50.20050915-patched/gdb/Makefile.in
--- gdb-6.3.50.20050915/gdb/Makefile.in	2005-09-10 13:11:01.000000000 -0500
+++ gdb-6.3.50.20050915-patched/gdb/Makefile.in	2005-09-15 19:24:39.000000000 -0500
@@ -2282,7 +2282,7 @@
 	$(gdb_string_h) $(mips_tdep_h) $(solib_svr4_h)
 mips-irix-tdep.o: mips-irix-tdep.c $(defs_h) $(osabi_h) $(elf_bfd_h)
 mips-linux-nat.o: mips-linux-nat.c $(defs_h) $(mips_tdep_h) $(target_h) \
-	$(linux_nat_h)
+	$(linux_nat_h) $(gdb_proc_service_h)
 mips-linux-tdep.o: mips-linux-tdep.c $(defs_h) $(gdbcore_h) $(target_h) \
 	$(solib_svr4_h) $(osabi_h) $(mips_tdep_h) $(gdb_string_h) \
 	$(gdb_assert_h) $(frame_h) $(regcache_h) $(trad_frame_h) \
diff -urN gdb-6.3.50.20050915/gdb/gdbserver/Makefile.in gdb-6.3.50.20050915-patched/gdb/gdbserver/Makefile.in
--- gdb-6.3.50.20050915/gdb/gdbserver/Makefile.in	2005-05-28 17:09:04.000000000 -0500
+++ gdb-6.3.50.20050915-patched/gdb/gdbserver/Makefile.in	2005-09-15 19:20:01.000000000 -0500
@@ -267,15 +267,18 @@
 linux-arm-low.o: linux-arm-low.c $(linux_low_h) $(server_h)
 linux-cris-low.o: linux-cris-low.c $(linux_low_h) $(server_h)
 linux-crisv32-low.o: linux-crisv32-low.c $(linux_low_h) $(server_h)
-linux-i386-low.o: linux-i386-low.c $(linux_low_h) $(server_h)
+linux-i386-low.o: linux-i386-low.c $(linux_low_h) $(server_h) \
+	$(gdb_proc_service_h)
 linux-ia64-low.o: linux-ia64-low.c $(linux_low_h) $(server_h)
 linux-m32r-low.o: linux-m32r-low.c $(linux_low_h) $(server_h)
-linux-mips-low.o: linux-mips-low.c $(linux_low_h) $(server_h)
+linux-mips-low.o: linux-mips-low.c $(linux_low_h) $(server_h) \
+	$(gdb_proc_service_h)
 linux-ppc-low.o: linux-ppc-low.c $(linux_low_h) $(server_h)
 linux-ppc64-low.o: linux-ppc64-low.c $(linux_low_h) $(server_h)
 linux-s390-low.o: linux-s390-low.c $(linux_low_h) $(server_h)
 linux-sh-low.o: linux-sh-low.c $(linux_low_h) $(server_h)
-linux-x86-64-low.o: linux-x86-64-low.c $(linux_low_h) $(server_h)
+linux-x86-64-low.o: linux-x86-64-low.c $(linux_low_h) $(server_h) \
+	$(gdb_proc_service_h)
 
 reg-arm.o : reg-arm.c $(regdef_h)
 reg-arm.c : $(srcdir)/../regformats/reg-arm.dat $(regdat_sh)
diff -urN gdb-6.3.50.20050915/gdb/gdbserver/linux-mips-low.c gdb-6.3.50.20050915-patched/gdb/gdbserver/linux-mips-low.c
--- gdb-6.3.50.20050915/gdb/gdbserver/linux-mips-low.c	2005-06-12 20:59:22.000000000 -0500
+++ gdb-6.3.50.20050915-patched/gdb/gdbserver/linux-mips-low.c	2005-09-15 19:16:54.000000000 -0500
@@ -22,6 +22,26 @@
 #include "server.h"
 #include "linux-low.h"
 
+#include <sys/ptrace.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"
+
+#ifndef PTRACE_GET_THREAD_AREA
+#define PTRACE_GET_THREAD_AREA 25
+#endif
+
 #ifdef HAVE_SYS_REG_H
 #include <sys/reg.h>
 #endif
@@ -140,6 +160,23 @@
   return 0;
 }
 
+/* Fetch the thread-local storage pointer for libthread_db.  */
+
+ps_err_e
+ps_get_thread_area (const struct ps_prochandle *ph,
+                    lwpid_t lwpid, int idx, void **base)
+{
+  if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
+    return PS_ERR;
+
+  /* IDX is the bias from the thread pointer to the beginning of the
+     thread descriptor.  It has to be subtracted due to implementation
+     quirks in libthread_db.  */
+  *base = (void *) ((char *)*base - idx);
+
+  return PS_OK;
+}
+
 struct linux_target_ops the_low_target = {
   mips_num_regs,
   mips_regmap,
diff -urN gdb-6.3.50.20050915/gdb/mips-linux-nat.c gdb-6.3.50.20050915-patched/gdb/mips-linux-nat.c
--- gdb-6.3.50.20050915/gdb/mips-linux-nat.c	2005-09-10 13:11:04.000000000 -0500
+++ gdb-6.3.50.20050915-patched/gdb/mips-linux-nat.c	2005-09-15 19:16:54.000000000 -0500
@@ -24,6 +24,12 @@
 #include "target.h"
 #include "linux-nat.h"
 
+#include "gdb_proc_service.h"
+
+#ifndef PTRACE_GET_THREAD_AREA
+#define PTRACE_GET_THREAD_AREA 25
+#endif
+
 /* Pseudo registers can not be read.  ptrace does not provide a way to
    read (or set) MIPS_PS_REGNUM, and there's no point in reading or
    setting MIPS_ZERO_REGNUM.  We also can not set BADVADDR, CAUSE, or
@@ -72,3 +78,20 @@
 {
   add_target (linux_target ());
 }
+
+/* Fetch the thread-local storage pointer for libthread_db.  */
+
+ps_err_e
+ps_get_thread_area (const struct ps_prochandle *ph,
+                    lwpid_t lwpid, int idx, void **base)
+{
+  if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
+    return PS_ERR;
+
+  /* IDX is the bias from the thread pointer to the beginning of the
+     thread descriptor.  It has to be subtracted due to implementation
+     quirks in libthread_db.  */
+  *base = (void *) ((char *)*base - idx);
+
+  return PS_OK;
+}