[LLDB][MIPS] Core Dump Support.

Reviewers: labath, emaste

Subscribers: jaydeep, bhushan, lldb-commits, slthakur

Differential Revision: https://reviews.llvm.org/D30457

llvm-svn: 299200

1 files changed, 95 insertions, 2 deletions

diff --git a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
index c40f6949262..1bb16c70112 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
+++ b/lldb/source/Plugins/Process/Utility/RegisterContextLinux_mips64.cpp
@@ -7,7 +7,6 @@
 //
 //===---------------------------------------------------------------------===//
 
-#if defined(__mips__)
 
 #include <stddef.h>
 #include <vector>
@@ -41,6 +40,101 @@ using namespace lldb_private;
 #include "RegisterInfos_mips.h"
 #undef DECLARE_REGISTER_INFOS_MIPS_STRUCT
 
+// mips64 general purpose registers.
+const uint32_t g_gp_regnums_mips64[] = {
+    gpr_zero_mips64,    gpr_r1_mips64,    gpr_r2_mips64,
+    gpr_r3_mips64,      gpr_r4_mips64,    gpr_r5_mips64,
+    gpr_r6_mips64,      gpr_r7_mips64,    gpr_r8_mips64,
+    gpr_r9_mips64,      gpr_r10_mips64,   gpr_r11_mips64,
+    gpr_r12_mips64,     gpr_r13_mips64,   gpr_r14_mips64,
+    gpr_r15_mips64,     gpr_r16_mips64,   gpr_r17_mips64,
+    gpr_r18_mips64,     gpr_r19_mips64,   gpr_r20_mips64,
+    gpr_r21_mips64,     gpr_r22_mips64,   gpr_r23_mips64,
+    gpr_r24_mips64,     gpr_r25_mips64,   gpr_r26_mips64,
+    gpr_r27_mips64,     gpr_gp_mips64,    gpr_sp_mips64,
+    gpr_r30_mips64,     gpr_ra_mips64,    gpr_sr_mips64,
+    gpr_mullo_mips64,   gpr_mulhi_mips64, gpr_badvaddr_mips64,
+    gpr_cause_mips64,   gpr_pc_mips64,    gpr_config5_mips64,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+static_assert((sizeof(g_gp_regnums_mips64) / sizeof(g_gp_regnums_mips64[0])) -
+                      1 ==
+                  k_num_gpr_registers_mips64,
+              "g_gp_regnums_mips64 has wrong number of register infos");
+
+// mips64 floating point registers.
+const uint32_t g_fp_regnums_mips64[] = {
+    fpr_f0_mips64,      fpr_f1_mips64,  fpr_f2_mips64,      fpr_f3_mips64,
+    fpr_f4_mips64,      fpr_f5_mips64,  fpr_f6_mips64,      fpr_f7_mips64,
+    fpr_f8_mips64,      fpr_f9_mips64,  fpr_f10_mips64,     fpr_f11_mips64,
+    fpr_f12_mips64,     fpr_f13_mips64, fpr_f14_mips64,     fpr_f15_mips64,
+    fpr_f16_mips64,     fpr_f17_mips64, fpr_f18_mips64,     fpr_f19_mips64,
+    fpr_f20_mips64,     fpr_f21_mips64, fpr_f22_mips64,     fpr_f23_mips64,
+    fpr_f24_mips64,     fpr_f25_mips64, fpr_f26_mips64,     fpr_f27_mips64,
+    fpr_f28_mips64,     fpr_f29_mips64, fpr_f30_mips64,     fpr_f31_mips64,
+    fpr_fcsr_mips64,    fpr_fir_mips64, fpr_config5_mips64,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+static_assert((sizeof(g_fp_regnums_mips64) / sizeof(g_fp_regnums_mips64[0])) -
+                      1 ==
+                  k_num_fpr_registers_mips64,
+              "g_fp_regnums_mips64 has wrong number of register infos");
+
+// mips64 MSA registers.
+const uint32_t g_msa_regnums_mips64[] = {
+    msa_w0_mips64,      msa_w1_mips64,  msa_w2_mips64,   msa_w3_mips64,
+    msa_w4_mips64,      msa_w5_mips64,  msa_w6_mips64,   msa_w7_mips64,
+    msa_w8_mips64,      msa_w9_mips64,  msa_w10_mips64,  msa_w11_mips64,
+    msa_w12_mips64,     msa_w13_mips64, msa_w14_mips64,  msa_w15_mips64,
+    msa_w16_mips64,     msa_w17_mips64, msa_w18_mips64,  msa_w19_mips64,
+    msa_w20_mips64,     msa_w21_mips64, msa_w22_mips64,  msa_w23_mips64,
+    msa_w24_mips64,     msa_w25_mips64, msa_w26_mips64,  msa_w27_mips64,
+    msa_w28_mips64,     msa_w29_mips64, msa_w30_mips64,  msa_w31_mips64,
+    msa_fcsr_mips64,    msa_fir_mips64, msa_mcsr_mips64, msa_mir_mips64,
+    msa_config5_mips64,
+    LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+static_assert((sizeof(g_msa_regnums_mips64) / sizeof(g_msa_regnums_mips64[0])) -
+                      1 ==
+                  k_num_msa_registers_mips64,
+              "g_msa_regnums_mips64 has wrong number of register infos");
+
+// Number of register sets provided by this context.
+constexpr size_t k_num_register_sets = 3;
+
+// Register sets for mips64.
+static const RegisterSet g_reg_sets_mips64[k_num_register_sets] = {
+    {"General Purpose Registers", "gpr", k_num_gpr_registers_mips64,
+     g_gp_regnums_mips64},
+    {"Floating Point Registers", "fpu", k_num_fpr_registers_mips64,
+     g_fp_regnums_mips64},
+    {"MSA Registers", "msa", k_num_msa_registers_mips64, g_msa_regnums_mips64},
+};
+
+const RegisterSet *
+RegisterContextLinux_mips64::GetRegisterSet(size_t set) const {
+  if (set >= k_num_register_sets)
+    return nullptr;
+
+  switch (m_target_arch.GetMachine()) {
+  case llvm::Triple::mips64:
+  case llvm::Triple::mips64el:
+    return &g_reg_sets_mips64[set];
+  default:
+    assert(false && "Unhandled target architecture.");
+    return nullptr;
+  }
+  return nullptr;
+}
+
+size_t
+RegisterContextLinux_mips64::GetRegisterSetCount() const {
+  return k_num_register_sets;
+}
+
 static const RegisterInfo *GetRegisterInfoPtr(const ArchSpec &target_arch) {
   switch (target_arch.GetMachine()) {
   case llvm::Triple::mips64:
@@ -116,4 +210,3 @@ uint32_t RegisterContextLinux_mips64::GetUserRegisterCount() const {
   return m_user_register_count;
 }
 
-#endif