* rs6000-tdep: Include "features/rs6000/powerpc-vsx32.c".

	Include "features/rs6000/powerpc-vsx64.c".
	(ppc_supply_vsxregset): New function.
	(ppc_collect_vsxregset): New function.
	(IS_VSX_PSEUDOREG): New macro.
	(IS_EFP_PSEUDOREG): New macro.
	(vsx_register_p): New function.
	(ppc_vsx_support_p): New function.
	(rs6000_builtin_type_vec128): New function.
	(rs6000_register_name): Hide upper halves of vs0~vs31.  Return
	correct names for VSX registers and EFPR registers.
	(rs6000_pseudo_register_type): Return correct types for VSX
	and EFPR registers.
	(rs6000_pseudo_register_reggroup_p): Return correct group for
	VSX and EFPR registers.
	(ppc_pseudo_register_read): Rename to dfp_pseudo_register_read.
	(ppc_pseudo_register_write): Rename to dfp_pseudo_register_write.
	(vsx_pseudo_register_read): New function.
	(vsx_pseudo_register_write): New function.
	(efpr_pseudo_register_read): New function.
	(efpr_pseudo_register_write): New function.
	(rs6000_pseudo_register_read): Call new VSX and EFPR read functions.
	(rs6000_pseudo_register_write): Call new VSX and EFPR write functions.
	(rs6000_gdbarch_init): Declare have_vsx.
	Initialize new upper half VSX registers.
	Initialize VSX-related and EFPR-related pseudo-registers variables.
	Adjust the number of pseudo registers accordingly.

	* ppc-linux-nat.c: Define PTRACE_GETVSXREGS, PTRACE_SETVSXREGS
	and SIZEOF_VSRREGS.
	(gdb_vsxregset_t): New type.
	(have_ptrace_getsetvsxregs): New variable.
	(fetch_vsx_register): New function.
	(fetch_register): Handle VSX registers.
	(fetch_vsx_registers): New function.
	(fetch_ppc_registers): Handle VSX registers.
	(store_ppc_registers): Handle VSX registers.
	(store_vsx_register): New function.
	(store_register): Handle VSX registers.
	(store_vsx_registers): New function.
	(ppc_linux_read_description): Handle VSX-enabled inferiors.
	(gdb_vsxregset_t): New type.
	(supply_vsxregset): New function.
	(fill_vsxregset): New function.

	* ppc-tdep.h (vsx_register_p): New prototype.
	(vsx_support_p): New prototype.
	(ppc_vsr0_regnum): New variable.
	(ppc_vsr0_upper_regnum): Likewise.
	(ppc_efpr0_regnum): Likewise.
	(ppc_builtin_type_vec128): New type.
	(ppc_num_vsrs): New constant.
	(ppc_num_vshrs): New constant.
	(ppc_num_efprs): Likewise.
	Define POWERPC_VEC_VSX PPC_VSR0_UPPER_REGNUM and PPC_VSR31_UPPER_REGNUM.
	(ppc_supply_vsxregset): New prototype.
	(ppc_collect_vsxregset): New prototype.

	* ppc-linux-tdep.c: Include "features/rs6000/powerpc-vsx32l.c"
	Include "features/rs6000/powerpc-vsx64l.c".
	(_initialize_ppc_linux_tdep): Initialize VSX-enabled targets.
	(ppc_linux_regset_sections): Add new ".reg-ppc-vsx" field.
	(ppc32_linux_vsxregset): New 32-bit VSX-enabled regset.
	(ppc_linux_regset_from_core_section): Handle VSX core section.
	(ppc_linux_core_read_description): Support VSX-enabled core files.

	* ppc-linux-tdep.h: Declare *tdesc_powerpc_vsx32l
	Declare tdesc_powerpc_vsx64l

	* corelow.c (get_core_register_section): Support VSX-enabled
	core files.

	* features/rs6000/power-vsx.xml: New VSX descriptions.
	* features/rs6000/powerpc-vsx32.xml: New file.
	* features/rs6000/powerpc-vsx32l.xml: New file.
	* features/rs6000/powerpc-vsx64.xml: New file.
	* features/rs6000/powerpc-vsx64l.xml: New file.
	* features/rs6000/powerpc-vsx32.c: New file (generated).
	* features/rs6000/powerpc-vsx32l.c: New file (generated).
	* features/rs6000/powerpc-vsx64.c: New file (generated).
	* features/rs6000/powerpc-vsx64l.c: New file (generated).
	* features/Makefile: Updated with new descriptions.
	* regformats/rs6000/powerpc-vsx32l.dat: New file (generated).
	* regformats/rs6000/powerpc-vsx64l.dat: New file (generated).

	* testsuite/gdb.arch/vsx-regs.c: New source file.
	* testsuite/gdb.arch/vsx-regs.exp: New testcase.
	* testsuite/lib/gdb.exp (skip_vsx_tests): New function.

1 files changed, 86 insertions, 0 deletions

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 72081a8..3761d7a 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -1349,6 +1349,92 @@ proc skip_altivec_tests {} {
     return $skip_vmx_tests_saved
 }
 
+# Run a test on the target to see if it supports vmx hardware.  Return 0 if so,
+# 1 if it does not.  Based on 'check_vmx_hw_available' from the GCC testsuite.
+
+proc skip_vsx_tests {} {
+    global skip_vsx_tests_saved
+    global srcdir subdir gdb_prompt
+
+    # Use the cached value, if it exists.
+    set me "skip_vsx_tests"
+    if [info exists skip_vsx_tests_saved] {
+        verbose "$me:  returning saved $skip_vsx_tests_saved" 2
+        return $skip_vsx_tests_saved
+    }
+
+    # Some simulators are known to not support Altivec instructions, so
+    # they won't support VSX instructions as well.
+    if { [istarget powerpc-*-eabi] || [istarget powerpc*-*-eabispe] } {
+        verbose "$me:  target known to not support VSX, returning 1" 2
+        return [set skip_vsx_tests_saved 1]
+    }
+
+    # Make sure we have a compiler that understands altivec.
+    set compile_flags {debug nowarnings quiet}
+    if [get_compiler_info not-used] {
+       warning "Could not get compiler info"
+       return 1
+    }
+    if [test_compiler_info gcc*] {
+        set compile_flags "$compile_flags additional_flags=-mvsx"
+    } elseif [test_compiler_info xlc*] {
+        set compile_flags "$compile_flags additional_flags=-qvsx"
+    } else {
+        verbose "Could not compile with vsx support, returning 1" 2
+        return 1
+    }
+
+    set src vsx[pid].c
+    set exe vsx[pid].x
+
+    set f [open $src "w"]
+    puts $f "int main() {"
+    puts $f "#ifdef __MACH__"
+    puts $f "  asm volatile (\"lxvd2x v0,v0,v0\");"
+    puts $f "#else"
+    puts $f "  asm volatile (\"lxvd2x 0,0,0\");"
+    puts $f "#endif"
+    puts $f "  return 0; }"
+    close $f
+
+    verbose "$me:  compiling testfile $src" 2
+    set lines [gdb_compile $src $exe executable $compile_flags]
+    file delete $src
+
+    if ![string match "" $lines] then {
+        verbose "$me:  testfile compilation failed, returning 1" 2
+        return [set skip_vsx_tests_saved 1]
+    }
+
+    # No error message, compilation succeeded so now run it via gdb.
+
+    gdb_exit
+    gdb_start
+    gdb_reinitialize_dir $srcdir/$subdir
+    gdb_load "$exe"
+    gdb_run_cmd
+    gdb_expect {
+        -re ".*Illegal instruction.*${gdb_prompt} $" {
+            verbose -log "\n$me VSX hardware not detected"
+            set skip_vsx_tests_saved 1
+        }
+        -re ".*Program exited normally.*${gdb_prompt} $" {
+            verbose -log "\n$me: VSX hardware detected"
+            set skip_vsx_tests_saved 0
+        }
+        default {
+          warning "\n$me: default case taken"
+            set skip_vsx_tests_saved 1
+        }
+    }
+    gdb_exit
+    remote_file build delete $exe
+
+    verbose "$me:  returning $skip_vsx_tests_saved" 2
+    return $skip_vsx_tests_saved
+}
+
 # Skip all the tests in the file if you are not on an hppa running
 # hpux target.