Support i386 without SSE.

gdb/

2010-04-08  H.J. Lu  <hongjiu.lu@intel.com>

	* i386-linux-nat.c (have_ptrace_getfpxregs): Initialize to -1
	if HAVE_PTRACE_GETFPXREGS is defined.
	(i386_linux_read_description): Set have_ptrace_getfpxregs and
	have_ptrace_getregset to 0 if ptrace PTRACE_GETFPXREGS failed.

	* i386-linux-tdep.c: Include "features/i386/i386-mmx-linux.c"
	(i386_linux_core_read_description): Return tdesc_i386_mmx_linux
	if .reg-xfp section doesn't exist.
	(_initialize_i386_linux_tdep): Call initialize_tdesc_i386_mmx_linux.

	* i386-linux-tdep.h (tdesc_i386_mmx_linux): New.

	* i386-tdep.c: Include "features/i386/i386-mmx.c".
	(i386_go32_init_abi): Set tdesc to tdesc_i386_mmx.
	(i386_validate_tdesc_p): Make org.gnu.gdb.i386.sse optional.  Set
	xcr0 to I386_XSTATE_X87_MASK if SSE isn't available.
	(i386_gdbarch_init): Update comments.
	(_initialize_i386_tdep): Call initialize_tdesc_i386_mmx.

	* common/i386-xstate.h (I386_XSTATE_X87_MASK): New.

	* config/djgpp/fnchange.lst: Add i386 MMX XML files.

	* features/Makefile (i386/i386-mmx-expedite): New.
	(i386/i386-mmx-linux-expedite): Likewise.
	($(outdir)/i386/i386-mmx.dat): Likewise.
	($(outdir)/i386/i386-mmx-linux.dat): Likewise.

	* features/i386/i386-mmx-linux.c: New.
	* features/i386/i386-mmx-linux.xml: Likewise.
	* features/i386/i386-mmx.c: Likewise.
	* features/i386/i386-mmx.xml: Likewise.
	* regformats/i386/i386-mmx-linux.dat: Likewise.
	* regformats/i386/i386-mmx.dat: Likewise.

	* features/Makefile (WHICH): Add i386/i386-mmx and
	i386/i386-mmx-linux.

gdb/doc/

2010-04-08  H.J. Lu  <hongjiu.lu@intel.com>

	* gdb.texinfo (i386 Features): Make org.gnu.gdb.i386.avx
	optional.  Make org.gnu.gdb.i386.avx requires
	org.gnu.gdb.i386.avx.

gdb/gdbserver/

2010-04-08  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.in (clean): Also remove i386-mmx.c i386-mmx-linux.c.
	(i386-mmx.o): New.
	(i386-mmx.c): Likewise.
	(i386-mmx-linux.o): Likewise.
	(i386-mmx-linux.c): Likewise.

	* configure.srv (srv_i386_regobj): Add i386-mmx.o.
	(srv_i386_linux_regobj): Add i386-mmx-linux.o.
	(srv_i386_xmlfiles): Add i386/i386-mmx.xml.
	(srv_i386_linux_xmlfiles): Add i386/i386-mmx-linux.xml.

	* linux-x86-low.c (init_registers_i386_mmx_linux): New.
	(x86_linux_update_xmltarget): Call init_registers_i386_mmx_linux
	and return if ptrace PTRACE_GETFPXREGS failed in 32bit.

5 files changed, 182 insertions, 0 deletions

diff --git a/gdb/features/Makefile b/gdb/features/Makefile
index 1166582..987854b 100644
--- a/gdb/features/Makefile
+++ b/gdb/features/Makefile
@@ -32,6 +32,7 @@
 
 WHICH = arm-with-iwmmxt arm-with-vfpv2 arm-with-vfpv3 arm-with-neon \
 	i386/i386 i386/i386-linux \
+	i386/i386-mmx i386/i386-mmx-linux \
 	i386/amd64 i386/amd64-linux \
 	i386/i386-avx i386/i386-avx-linux \
 	i386/amd64-avx i386/amd64-avx-linux \
@@ -49,6 +50,8 @@ i386/amd64-expedite = rbp,rsp,rip
 i386/amd64-linux-expedite = rbp,rsp,rip
 i386/i386-avx-expedite = ebp,esp,eip
 i386/i386-avx-linux-expedite = ebp,esp,eip
+i386/i386-mmx-expedite = ebp,esp,eip
+i386/i386-mmx-linux-expedite = ebp,esp,eip
 i386/amd64-avx-expedite = rbp,rsp,rip
 i386/amd64-avx-linux-expedite = rbp,rsp,rip
 mips-expedite = r29,pc
@@ -99,6 +102,8 @@ $(outdir)/i386/amd64-linux.dat: i386/64bit-core.xml i386/64bit-sse.xml \
 $(outdir)/i386/i386-avx.dat: i386/32bit-core.xml i386/32bit-avx.xml
 $(outdir)/i386/i386-avx-linux.dat: i386/32bit-core.xml i386/32bit-avx.xml \
 			       i386/32bit-linux.xml
+$(outdir)/i386/i386-mmx.dat: i386/32bit-core.xml 
+$(outdir)/i386/i386-mmx-linux.dat: i386/32bit-core.xml i386/32bit-linux.xml
 $(outdir)/i386/amd64-avx.dat: i386/64bit-core.xml i386/64bit-avx.xml
 $(outdir)/i386/amd64-avx-linux.dat: i386/64bit-core.xml i386/64bit-avx.xml \
 				    i386/64bit-linux.xml
diff --git a/gdb/features/i386/i386-mmx-linux.c b/gdb/features/i386/i386-mmx-linux.c
new file mode 100644
index 0000000..364ade4
--- /dev/null
+++ b/gdb/features/i386/i386-mmx-linux.c
@@ -0,0 +1,76 @@
+/* THIS FILE IS GENERATED.  Original: i386-mmx-linux.xml */
+
+#include "defs.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_i386_mmx_linux;
+static void
+initialize_tdesc_i386_mmx_linux (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  struct tdesc_feature *feature;
+  struct tdesc_type *field_type, *type;
+
+  set_tdesc_architecture (result, bfd_scan_arch ("i386"));
+
+  set_tdesc_osabi (result, osabi_from_tdesc_string ("GNU/Linux"));
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.i386.core");
+  field_type = tdesc_create_flags (feature, "i386_eflags", 4);
+  tdesc_add_flag (field_type, 0, "CF");
+  tdesc_add_flag (field_type, 1, "");
+  tdesc_add_flag (field_type, 2, "PF");
+  tdesc_add_flag (field_type, 4, "AF");
+  tdesc_add_flag (field_type, 6, "ZF");
+  tdesc_add_flag (field_type, 7, "SF");
+  tdesc_add_flag (field_type, 8, "TF");
+  tdesc_add_flag (field_type, 9, "IF");
+  tdesc_add_flag (field_type, 10, "DF");
+  tdesc_add_flag (field_type, 11, "OF");
+  tdesc_add_flag (field_type, 14, "NT");
+  tdesc_add_flag (field_type, 16, "RF");
+  tdesc_add_flag (field_type, 17, "VM");
+  tdesc_add_flag (field_type, 18, "AC");
+  tdesc_add_flag (field_type, 19, "VIF");
+  tdesc_add_flag (field_type, 20, "VIP");
+  tdesc_add_flag (field_type, 21, "ID");
+
+  tdesc_create_reg (feature, "eax", 0, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ecx", 1, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "edx", 2, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ebx", 3, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "esp", 4, 1, NULL, 32, "data_ptr");
+  tdesc_create_reg (feature, "ebp", 5, 1, NULL, 32, "data_ptr");
+  tdesc_create_reg (feature, "esi", 6, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "edi", 7, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "eip", 8, 1, NULL, 32, "code_ptr");
+  tdesc_create_reg (feature, "eflags", 9, 1, NULL, 32, "i386_eflags");
+  tdesc_create_reg (feature, "cs", 10, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ss", 11, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ds", 12, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "es", 13, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "fs", 14, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "gs", 15, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "st0", 16, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st1", 17, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st2", 18, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st3", 19, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st4", 20, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st5", 21, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st6", 22, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st7", 23, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "fctrl", 24, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fstat", 25, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "ftag", 26, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fiseg", 27, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fioff", 28, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "foseg", 29, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fooff", 30, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fop", 31, 1, "float", 32, "int");
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.i386.linux");
+  tdesc_create_reg (feature, "orig_eax", 41, 1, NULL, 32, "int");
+
+  tdesc_i386_mmx_linux = result;
+}
diff --git a/gdb/features/i386/i386-mmx-linux.xml b/gdb/features/i386/i386-mmx-linux.xml
new file mode 100644
index 0000000..19d4f3f
--- /dev/null
+++ b/gdb/features/i386/i386-mmx-linux.xml
@@ -0,0 +1,16 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!-- I386 with MMX - Includes Linux-only special "register".  -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<target>
+  <architecture>i386</architecture>
+  <osabi>GNU/Linux</osabi>
+  <xi:include href="32bit-core.xml"/>
+  <xi:include href="32bit-linux.xml"/>
+</target>
diff --git a/gdb/features/i386/i386-mmx.c b/gdb/features/i386/i386-mmx.c
new file mode 100644
index 0000000..f43df65
--- /dev/null
+++ b/gdb/features/i386/i386-mmx.c
@@ -0,0 +1,71 @@
+/* THIS FILE IS GENERATED.  Original: i386-mmx.xml */
+
+#include "defs.h"
+#include "osabi.h"
+#include "target-descriptions.h"
+
+struct target_desc *tdesc_i386_mmx;
+static void
+initialize_tdesc_i386_mmx (void)
+{
+  struct target_desc *result = allocate_target_description ();
+  struct tdesc_feature *feature;
+  struct tdesc_type *field_type, *type;
+
+  set_tdesc_architecture (result, bfd_scan_arch ("i386"));
+
+  feature = tdesc_create_feature (result, "org.gnu.gdb.i386.core");
+  field_type = tdesc_create_flags (feature, "i386_eflags", 4);
+  tdesc_add_flag (field_type, 0, "CF");
+  tdesc_add_flag (field_type, 1, "");
+  tdesc_add_flag (field_type, 2, "PF");
+  tdesc_add_flag (field_type, 4, "AF");
+  tdesc_add_flag (field_type, 6, "ZF");
+  tdesc_add_flag (field_type, 7, "SF");
+  tdesc_add_flag (field_type, 8, "TF");
+  tdesc_add_flag (field_type, 9, "IF");
+  tdesc_add_flag (field_type, 10, "DF");
+  tdesc_add_flag (field_type, 11, "OF");
+  tdesc_add_flag (field_type, 14, "NT");
+  tdesc_add_flag (field_type, 16, "RF");
+  tdesc_add_flag (field_type, 17, "VM");
+  tdesc_add_flag (field_type, 18, "AC");
+  tdesc_add_flag (field_type, 19, "VIF");
+  tdesc_add_flag (field_type, 20, "VIP");
+  tdesc_add_flag (field_type, 21, "ID");
+
+  tdesc_create_reg (feature, "eax", 0, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ecx", 1, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "edx", 2, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ebx", 3, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "esp", 4, 1, NULL, 32, "data_ptr");
+  tdesc_create_reg (feature, "ebp", 5, 1, NULL, 32, "data_ptr");
+  tdesc_create_reg (feature, "esi", 6, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "edi", 7, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "eip", 8, 1, NULL, 32, "code_ptr");
+  tdesc_create_reg (feature, "eflags", 9, 1, NULL, 32, "i386_eflags");
+  tdesc_create_reg (feature, "cs", 10, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ss", 11, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "ds", 12, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "es", 13, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "fs", 14, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "gs", 15, 1, NULL, 32, "int32");
+  tdesc_create_reg (feature, "st0", 16, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st1", 17, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st2", 18, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st3", 19, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st4", 20, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st5", 21, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st6", 22, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "st7", 23, 1, NULL, 80, "i387_ext");
+  tdesc_create_reg (feature, "fctrl", 24, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fstat", 25, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "ftag", 26, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fiseg", 27, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fioff", 28, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "foseg", 29, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fooff", 30, 1, "float", 32, "int");
+  tdesc_create_reg (feature, "fop", 31, 1, "float", 32, "int");
+
+  tdesc_i386_mmx = result;
+}
diff --git a/gdb/features/i386/i386-mmx.xml b/gdb/features/i386/i386-mmx.xml
new file mode 100644
index 0000000..7bb9e7a
--- /dev/null
+++ b/gdb/features/i386/i386-mmx.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2010 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!-- I386 with MMX -->
+
+<!DOCTYPE target SYSTEM "gdb-target.dtd">
+<target>
+  <architecture>i386</architecture>
+  <xi:include href="32bit-core.xml"/>
+</target>