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[commit] MIPS NPTL support for gdbserver
- From: Daniel Jacobowitz <drow at false dot org>
- To: gdb-patches at sourceware dot org
- Date: Wed, 15 Mar 2006 11:27:00 -0500
- Subject: [commit] MIPS NPTL support for gdbserver
Here's updated gdbserver support for NPTL; it no longer has a big
"eww" in the middle of it. Also updated some missing dependencies
while I was here.
Tested and committed.
--
Daniel Jacobowitz
CodeSourcery
2006-03-15 Daniel Jacobowitz <dan@codesourcery.com>
* linux-mips-low.c: Include <sys/ptrace.h> and "gdb_proc_service.h".
(PTRACE_GET_THREAD_AREA): Define.
(ps_get_thread_area): New function.
* Makefile.in (linux-i386-low.o, linux-mips-low.o)
(linux-x86-64-low.o): Update.
Index: src/gdb/gdbserver/linux-mips-low.c
===================================================================
--- src.orig/gdb/gdbserver/linux-mips-low.c 2006-03-14 16:27:24.000000000 -0500
+++ src/gdb/gdbserver/linux-mips-low.c 2006-03-14 16:29:19.000000000 -0500
@@ -1,5 +1,5 @@
/* GNU/Linux/MIPS specific low level interface, for the remote server for GDB.
- Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2005
+ Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2005, 2006
Free Software Foundation, Inc.
This file is part of GDB.
@@ -22,6 +22,14 @@
#include "server.h"
#include "linux-low.h"
+#include <sys/ptrace.h>
+
+#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 +148,23 @@ mips_breakpoint_at (CORE_ADDR where)
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,
Index: src/gdb/gdbserver/Makefile.in
===================================================================
--- src.orig/gdb/gdbserver/Makefile.in 2006-03-14 16:15:15.000000000 -0500
+++ src/gdb/gdbserver/Makefile.in 2006-03-14 16:29:04.000000000 -0500
@@ -272,15 +272,18 @@ linux-low.o: linux-low.c $(linux_low_h)
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)