[LLDB][PPC64] Fixed issues with expedited registers

[luporl]

Summary

• reg_nums were missing the end marker entry
• marked FP test to be skipped for ppc64

[luporl]

@labath, @clayborg, can you check this in for me?

packages/Python/lldbsuite/test/tools/lldb-server/TestGdbRemoteExpeditedRegisters.py

class TestGdbRemoteExpeditedRegisters(
 
     @llgs_test
     def test_stop_notification_contains_pc_register_llgs(self):
         self.init_llgs_test()
         self.build()
         self.set_inferior_startup_launch()
         self.stop_notification_contains_pc_register()
 
+    # powerpc64 has no FP register
+    @skipIf(triple='^powerpc64')
     def stop_notification_contains_fp_register(self):
         self.stop_notification_contains_generic_register("fp")
 
     @debugserver_test
     def test_stop_notification_contains_fp_register_debugserver(self):
         self.init_debugserver_test()
         self.build()
         self.set_inferior_startup_launch()

source/Plugins/Process/Linux/NativeRegisterContextLinux_ppc64le.cpp

static const uint32_t g_gpr_regnums_ppc64le[] = {
     gpr_r12_ppc64le,  gpr_r13_ppc64le, gpr_r14_ppc64le,    gpr_r15_ppc64le,
     gpr_r16_ppc64le,  gpr_r17_ppc64le, gpr_r18_ppc64le,    gpr_r19_ppc64le,
     gpr_r20_ppc64le,  gpr_r21_ppc64le, gpr_r22_ppc64le,    gpr_r23_ppc64le,
     gpr_r24_ppc64le,  gpr_r25_ppc64le, gpr_r26_ppc64le,    gpr_r27_ppc64le,
     gpr_r28_ppc64le,  gpr_r29_ppc64le, gpr_r30_ppc64le,    gpr_r31_ppc64le,
     gpr_pc_ppc64le,   gpr_msr_ppc64le, gpr_origr3_ppc64le, gpr_ctr_ppc64le,
     gpr_lr_ppc64le,   gpr_xer_ppc64le, gpr_cr_ppc64le,     gpr_softe_ppc64le,
     gpr_trap_ppc64le,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
 };
 
 static const uint32_t g_fpr_regnums_ppc64le[] = {
     fpr_f0_ppc64le,    fpr_f1_ppc64le,  fpr_f2_ppc64le,  fpr_f3_ppc64le,
     fpr_f4_ppc64le,    fpr_f5_ppc64le,  fpr_f6_ppc64le,  fpr_f7_ppc64le,
     fpr_f8_ppc64le,    fpr_f9_ppc64le,  fpr_f10_ppc64le, fpr_f11_ppc64le,
     fpr_f12_ppc64le,   fpr_f13_ppc64le, fpr_f14_ppc64le, fpr_f15_ppc64le,
     fpr_f16_ppc64le,   fpr_f17_ppc64le, fpr_f18_ppc64le, fpr_f19_ppc64le,
     fpr_f20_ppc64le,   fpr_f21_ppc64le, fpr_f22_ppc64le, fpr_f23_ppc64le,
     fpr_f24_ppc64le,   fpr_f25_ppc64le, fpr_f26_ppc64le, fpr_f27_ppc64le,
     fpr_f28_ppc64le,   fpr_f29_ppc64le, fpr_f30_ppc64le, fpr_f31_ppc64le,
     fpr_fpscr_ppc64le,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
 };
 
 static const uint32_t g_vmx_regnums_ppc64le[] = {
     vmx_vr0_ppc64le,  vmx_vr1_ppc64le,    vmx_vr2_ppc64le,  vmx_vr3_ppc64le,
     vmx_vr4_ppc64le,  vmx_vr5_ppc64le,    vmx_vr6_ppc64le,  vmx_vr7_ppc64le,
     vmx_vr8_ppc64le,  vmx_vr9_ppc64le,    vmx_vr10_ppc64le, vmx_vr11_ppc64le,
     vmx_vr12_ppc64le, vmx_vr13_ppc64le,   vmx_vr14_ppc64le, vmx_vr15_ppc64le,
     vmx_vr16_ppc64le, vmx_vr17_ppc64le,   vmx_vr18_ppc64le, vmx_vr19_ppc64le,
     vmx_vr20_ppc64le, vmx_vr21_ppc64le,   vmx_vr22_ppc64le, vmx_vr23_ppc64le,
     vmx_vr24_ppc64le, vmx_vr25_ppc64le,   vmx_vr26_ppc64le, vmx_vr27_ppc64le,
     vmx_vr28_ppc64le, vmx_vr29_ppc64le,   vmx_vr30_ppc64le, vmx_vr31_ppc64le,
     vmx_vscr_ppc64le, vmx_vrsave_ppc64le,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
 };
 
 static const uint32_t g_vsx_regnums_ppc64le[] = {
     vsx_vs0_ppc64le,  vsx_vs1_ppc64le,  vsx_vs2_ppc64le,  vsx_vs3_ppc64le,
     vsx_vs4_ppc64le,  vsx_vs5_ppc64le,  vsx_vs6_ppc64le,  vsx_vs7_ppc64le,
     vsx_vs8_ppc64le,  vsx_vs9_ppc64le,  vsx_vs10_ppc64le, vsx_vs11_ppc64le,
     vsx_vs12_ppc64le, vsx_vs13_ppc64le, vsx_vs14_ppc64le, vsx_vs15_ppc64le,
     vsx_vs16_ppc64le, vsx_vs17_ppc64le, vsx_vs18_ppc64le, vsx_vs19_ppc64le,
     vsx_vs20_ppc64le, vsx_vs21_ppc64le, vsx_vs22_ppc64le, vsx_vs23_ppc64le,
     vsx_vs24_ppc64le, vsx_vs25_ppc64le, vsx_vs26_ppc64le, vsx_vs27_ppc64le,
     vsx_vs28_ppc64le, vsx_vs29_ppc64le, vsx_vs30_ppc64le, vsx_vs31_ppc64le,
     vsx_vs32_ppc64le, vsx_vs33_ppc64le, vsx_vs34_ppc64le, vsx_vs35_ppc64le,
     vsx_vs36_ppc64le, vsx_vs37_ppc64le, vsx_vs38_ppc64le, vsx_vs39_ppc64le,
     vsx_vs40_ppc64le, vsx_vs41_ppc64le, vsx_vs42_ppc64le, vsx_vs43_ppc64le,
     vsx_vs44_ppc64le, vsx_vs45_ppc64le, vsx_vs46_ppc64le, vsx_vs47_ppc64le,
     vsx_vs48_ppc64le, vsx_vs49_ppc64le, vsx_vs50_ppc64le, vsx_vs51_ppc64le,
     vsx_vs52_ppc64le, vsx_vs53_ppc64le, vsx_vs54_ppc64le, vsx_vs55_ppc64le,
     vsx_vs56_ppc64le, vsx_vs57_ppc64le, vsx_vs58_ppc64le, vsx_vs59_ppc64le,
     vsx_vs60_ppc64le, vsx_vs61_ppc64le, vsx_vs62_ppc64le, vsx_vs63_ppc64le,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
 };
 
 namespace {
 // Number of register sets provided by this context.
 enum { k_num_register_sets = 4 };
 }
 
 static const RegisterSet g_reg_sets_ppc64le[k_num_register_sets] = {