[lldb][AIX] Added base file for AIX Register Context PPC64 #173239
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@llvm/pr-subscribers-lldb Author: Hemang Gadhavi (HemangGadhavi) ChangesThis PR is in reference to porting LLDB on AIX. Link to discussions on llvm discourse and github:
Full diff: https://github.com/llvm/llvm-project/pull/173239.diff 4 Files Affected:
diff --git a/lldb/source/Plugins/Process/AIX/CMakeLists.txt b/lldb/source/Plugins/Process/AIX/CMakeLists.txt
index 3a6d9ec118e60..f1f9121822736 100644
--- a/lldb/source/Plugins/Process/AIX/CMakeLists.txt
+++ b/lldb/source/Plugins/Process/AIX/CMakeLists.txt
@@ -2,6 +2,7 @@ add_lldb_library(lldbPluginProcessAIX
NativeProcessAIX.cpp
NativeThreadAIX.cpp
NativeRegisterContextAIX.cpp
+ NativeRegisterContextAIX_ppc64.cpp
LINK_COMPONENTS
Support
diff --git a/lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.cpp b/lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.cpp
new file mode 100644
index 0000000000000..aba785753055c
--- /dev/null
+++ b/lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.cpp
@@ -0,0 +1,169 @@
+//===------ NativeRegisterContextAIX_ppc64.cpp ----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#if defined(__powerpc64__)
+
+#include "NativeRegisterContextAIX_ppc64.h"
+
+using namespace lldb;
+using namespace lldb_private;
+using namespace lldb_private::process_aix;
+
+static const uint32_t g_gpr_regnums_ppc64[] = {
+ gpr_r0_ppc64, gpr_r1_ppc64, gpr_r2_ppc64, gpr_r3_ppc64,
+ gpr_r4_ppc64, gpr_r5_ppc64, gpr_r6_ppc64, gpr_r7_ppc64,
+ gpr_r8_ppc64, gpr_r9_ppc64, gpr_r10_ppc64, gpr_r11_ppc64,
+ gpr_r12_ppc64, gpr_r13_ppc64, gpr_r14_ppc64, gpr_r15_ppc64,
+ gpr_r16_ppc64, gpr_r17_ppc64, gpr_r18_ppc64, gpr_r19_ppc64,
+ gpr_r20_ppc64, gpr_r21_ppc64, gpr_r22_ppc64, gpr_r23_ppc64,
+ gpr_r24_ppc64, gpr_r25_ppc64, gpr_r26_ppc64, gpr_r27_ppc64,
+ gpr_r28_ppc64, gpr_r29_ppc64, gpr_r30_ppc64, gpr_r31_ppc64,
+ gpr_cr_ppc64, gpr_msr_ppc64, gpr_xer_ppc64, gpr_lr_ppc64,
+ gpr_ctr_ppc64, gpr_pc_ppc64,
+ LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+static const uint32_t g_fpr_regnums_ppc64[] = {
+ fpr_f0_ppc64, fpr_f1_ppc64, fpr_f2_ppc64, fpr_f3_ppc64,
+ fpr_f4_ppc64, fpr_f5_ppc64, fpr_f6_ppc64, fpr_f7_ppc64,
+ fpr_f8_ppc64, fpr_f9_ppc64, fpr_f10_ppc64, fpr_f11_ppc64,
+ fpr_f12_ppc64, fpr_f13_ppc64, fpr_f14_ppc64, fpr_f15_ppc64,
+ fpr_f16_ppc64, fpr_f17_ppc64, fpr_f18_ppc64, fpr_f19_ppc64,
+ fpr_f20_ppc64, fpr_f21_ppc64, fpr_f22_ppc64, fpr_f23_ppc64,
+ fpr_f24_ppc64, fpr_f25_ppc64, fpr_f26_ppc64, fpr_f27_ppc64,
+ fpr_f28_ppc64, fpr_f29_ppc64, fpr_f30_ppc64, fpr_f31_ppc64,
+ fpr_fpscr_ppc64,
+ LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+static const uint32_t g_vmx_regnums_ppc64[] = {
+ vmx_vr0_ppc64, vmx_vr1_ppc64, vmx_vr2_ppc64, vmx_vr3_ppc64,
+ vmx_vr4_ppc64, vmx_vr5_ppc64, vmx_vr6_ppc64, vmx_vr7_ppc64,
+ vmx_vr8_ppc64, vmx_vr9_ppc64, vmx_vr10_ppc64, vmx_vr11_ppc64,
+ vmx_vr12_ppc64, vmx_vr13_ppc64, vmx_vr14_ppc64, vmx_vr15_ppc64,
+ vmx_vr16_ppc64, vmx_vr17_ppc64, vmx_vr18_ppc64, vmx_vr19_ppc64,
+ vmx_vr20_ppc64, vmx_vr21_ppc64, vmx_vr22_ppc64, vmx_vr23_ppc64,
+ vmx_vr24_ppc64, vmx_vr25_ppc64, vmx_vr26_ppc64, vmx_vr27_ppc64,
+ vmx_vr28_ppc64, vmx_vr29_ppc64, vmx_vr30_ppc64, vmx_vr31_ppc64,
+ vmx_vscr_ppc64, vmx_vrsave_ppc64,
+ LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+static const uint32_t g_vsx_regnums_ppc64[] = {
+ vsx_vs0_ppc64, vsx_vs1_ppc64, vsx_vs2_ppc64, vsx_vs3_ppc64,
+ vsx_vs4_ppc64, vsx_vs5_ppc64, vsx_vs6_ppc64, vsx_vs7_ppc64,
+ vsx_vs8_ppc64, vsx_vs9_ppc64, vsx_vs10_ppc64, vsx_vs11_ppc64,
+ vsx_vs12_ppc64, vsx_vs13_ppc64, vsx_vs14_ppc64, vsx_vs15_ppc64,
+ vsx_vs16_ppc64, vsx_vs17_ppc64, vsx_vs18_ppc64, vsx_vs19_ppc64,
+ vsx_vs20_ppc64, vsx_vs21_ppc64, vsx_vs22_ppc64, vsx_vs23_ppc64,
+ vsx_vs24_ppc64, vsx_vs25_ppc64, vsx_vs26_ppc64, vsx_vs27_ppc64,
+ vsx_vs28_ppc64, vsx_vs29_ppc64, vsx_vs30_ppc64, vsx_vs31_ppc64,
+ vsx_vs32_ppc64, vsx_vs33_ppc64, vsx_vs34_ppc64, vsx_vs35_ppc64,
+ vsx_vs36_ppc64, vsx_vs37_ppc64, vsx_vs38_ppc64, vsx_vs39_ppc64,
+ vsx_vs40_ppc64, vsx_vs41_ppc64, vsx_vs42_ppc64, vsx_vs43_ppc64,
+ vsx_vs44_ppc64, vsx_vs45_ppc64, vsx_vs46_ppc64, vsx_vs47_ppc64,
+ vsx_vs48_ppc64, vsx_vs49_ppc64, vsx_vs50_ppc64, vsx_vs51_ppc64,
+ vsx_vs52_ppc64, vsx_vs53_ppc64, vsx_vs54_ppc64, vsx_vs55_ppc64,
+ vsx_vs56_ppc64, vsx_vs57_ppc64, vsx_vs58_ppc64, vsx_vs59_ppc64,
+ vsx_vs60_ppc64, vsx_vs61_ppc64, vsx_vs62_ppc64, vsx_vs63_ppc64,
+ LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+
+// Number of register sets provided by this context.
+static constexpr int k_num_register_sets = 4;
+
+static const RegisterSet g_reg_sets_ppc64[k_num_register_sets] = {
+ {"General Purpose Registers", "gpr", k_num_gpr_registers_ppc64,
+ g_gpr_regnums_ppc64},
+ {"Floating Point Registers", "fpr", k_num_fpr_registers_ppc64,
+ g_fpr_regnums_ppc64},
+ {"AltiVec/VMX Registers", "vmx", k_num_vmx_registers_ppc64,
+ g_vmx_regnums_ppc64},
+ {"VSX Registers", "vsx", k_num_vsx_registers_ppc64, g_vsx_regnums_ppc64},
+};
+
+NativeRegisterContextAIX_ppc64::NativeRegisterContextAIX_ppc64(
+ const ArchSpec &target_arch, NativeThreadProtocol &native_thread)
+ : NativeRegisterContextAIX(native_thread) {
+ if (target_arch.GetMachine() != llvm::Triple::ppc64)
+ llvm_unreachable("Unhandled target architecture.");
+}
+
+uint32_t NativeRegisterContextAIX_ppc64::GetRegisterSetCount() const {
+ return k_num_register_sets;
+}
+
+const RegisterSet *
+NativeRegisterContextAIX_ppc64::GetRegisterSet(uint32_t set_index) const {
+ if (set_index < k_num_register_sets)
+ return &g_reg_sets_ppc64[set_index];
+
+ return nullptr;
+}
+
+uint32_t NativeRegisterContextAIX_ppc64::GetUserRegisterCount() const {
+ uint32_t count = 0;
+ for (uint32_t set_index = 0; set_index < k_num_register_sets; ++set_index)
+ count += g_reg_sets_ppc64[set_index].num_registers;
+ return count;
+}
+
+Status
+NativeRegisterContextAIX_ppc64::ReadRegister(const RegisterInfo *reg_info,
+ RegisterValue ®_value) {
+ return Status("unimplemented");
+}
+
+Status
+NativeRegisterContextAIX_ppc64::WriteRegister(const RegisterInfo *reg_info,
+ const RegisterValue ®_value) {
+ return Status("unimplemented");
+}
+
+Status NativeRegisterContextAIX_ppc64::ReadAllRegisterValues(
+ lldb::WritableDataBufferSP &data_sp) {
+ return Status("unimplemented");
+}
+
+Status NativeRegisterContextAIX_ppc64::WriteAllRegisterValues(
+ const lldb::DataBufferSP &data_sp) {
+ return Status("unimplemented");
+}
+
+bool NativeRegisterContextAIX_ppc64::IsGPR(unsigned reg) const {
+ return reg <= k_last_gpr_ppc64;
+}
+
+bool NativeRegisterContextAIX_ppc64::IsFPR(unsigned reg) const {
+ return (k_first_fpr_ppc64 <= reg && reg <= k_last_fpr_ppc64);
+}
+
+bool NativeRegisterContextAIX_ppc64::IsVMX(unsigned reg) const {
+ return (reg >= k_first_vmx_ppc64) && (reg <= k_last_vmx_ppc64);
+}
+
+bool NativeRegisterContextAIX_ppc64::IsVSX(unsigned reg) const {
+ return (reg >= k_first_vsx_ppc64) && (reg <= k_last_vsx_ppc64);
+}
+
+uint32_t NativeRegisterContextAIX_ppc64::CalculateFprOffset(
+ const RegisterInfo *reg_info) const {
+ return 0;
+}
+
+uint32_t NativeRegisterContextAIX_ppc64::CalculateVmxOffset(
+ const RegisterInfo *reg_info) const {
+ return 0;
+}
+
+uint32_t NativeRegisterContextAIX_ppc64::CalculateVsxOffset(
+ const RegisterInfo *reg_info) const {
+ return 0;
+}
+
+#endif // defined(__powerpc64__)
diff --git a/lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.h b/lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.h
new file mode 100644
index 0000000000000..77f75777737d1
--- /dev/null
+++ b/lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.h
@@ -0,0 +1,64 @@
+//===------ NativeRegisterContextAIX_ppc64.h --------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#if defined(__powerpc64__)
+
+#ifndef LLDB_SOURCE_PLUGINS_PROCESS_AIX_NATIVEREGISTERCONTEXTAIX_PPC64_H
+#define LLDB_SOURCE_PLUGINS_PROCESS_AIX_NATIVEREGISTERCONTEXTAIX_PPC64_H
+
+#include "Plugins/Process/AIX/NativeRegisterContextAIX.h"
+#include "Plugins/Process/Utility/lldb-ppc64-register-enums.h"
+
+namespace lldb_private {
+namespace process_aix {
+
+class NativeProcessAIX;
+
+class NativeRegisterContextAIX_ppc64 : public NativeRegisterContextAIX {
+public:
+ NativeRegisterContextAIX_ppc64(const ArchSpec &target_arch,
+ NativeThreadProtocol &native_thread);
+
+ uint32_t GetRegisterSetCount() const override;
+
+ uint32_t GetUserRegisterCount() const override;
+
+ const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
+
+ Status ReadRegister(const RegisterInfo *reg_info,
+ RegisterValue ®_value) override;
+
+ Status WriteRegister(const RegisterInfo *reg_info,
+ const RegisterValue ®_value) override;
+
+ Status ReadAllRegisterValues(lldb::WritableDataBufferSP &data_sp) override;
+
+ Status WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
+
+private:
+ bool IsGPR(unsigned reg) const;
+
+ bool IsFPR(unsigned reg) const;
+
+ bool IsVMX(unsigned reg) const;
+
+ bool IsVSX(unsigned reg) const;
+
+ uint32_t CalculateFprOffset(const RegisterInfo *reg_info) const;
+
+ uint32_t CalculateVmxOffset(const RegisterInfo *reg_info) const;
+
+ uint32_t CalculateVsxOffset(const RegisterInfo *reg_info) const;
+};
+
+} // namespace process_aix
+} // namespace lldb_private
+
+#endif // #ifndef LLDB_SOURCE_PLUGINS_PROCESS_AIX_NATIVEREGISTERCONTEXTAIX_H
+
+#endif // defined(__powerpc64__)
diff --git a/lldb/source/Plugins/Process/Utility/lldb-ppc64-register-enums.h b/lldb/source/Plugins/Process/Utility/lldb-ppc64-register-enums.h
index 40a75c006d843..19525b2c4ee34 100644
--- a/lldb/source/Plugins/Process/Utility/lldb-ppc64-register-enums.h
+++ b/lldb/source/Plugins/Process/Utility/lldb-ppc64-register-enums.h
@@ -127,10 +127,78 @@ enum {
vmx_vrsave_ppc64,
k_last_vmx_ppc64 = vmx_vrsave_ppc64,
+ k_first_vsx_ppc64,
+ vsx_vs0_ppc64 = k_first_vsx_ppc64,
+ vsx_vs1_ppc64,
+ vsx_vs2_ppc64,
+ vsx_vs3_ppc64,
+ vsx_vs4_ppc64,
+ vsx_vs5_ppc64,
+ vsx_vs6_ppc64,
+ vsx_vs7_ppc64,
+ vsx_vs8_ppc64,
+ vsx_vs9_ppc64,
+ vsx_vs10_ppc64,
+ vsx_vs11_ppc64,
+ vsx_vs12_ppc64,
+ vsx_vs13_ppc64,
+ vsx_vs14_ppc64,
+ vsx_vs15_ppc64,
+ vsx_vs16_ppc64,
+ vsx_vs17_ppc64,
+ vsx_vs18_ppc64,
+ vsx_vs19_ppc64,
+ vsx_vs20_ppc64,
+ vsx_vs21_ppc64,
+ vsx_vs22_ppc64,
+ vsx_vs23_ppc64,
+ vsx_vs24_ppc64,
+ vsx_vs25_ppc64,
+ vsx_vs26_ppc64,
+ vsx_vs27_ppc64,
+ vsx_vs28_ppc64,
+ vsx_vs29_ppc64,
+ vsx_vs30_ppc64,
+ vsx_vs31_ppc64,
+ vsx_vs32_ppc64,
+ vsx_vs33_ppc64,
+ vsx_vs34_ppc64,
+ vsx_vs35_ppc64,
+ vsx_vs36_ppc64,
+ vsx_vs37_ppc64,
+ vsx_vs38_ppc64,
+ vsx_vs39_ppc64,
+ vsx_vs40_ppc64,
+ vsx_vs41_ppc64,
+ vsx_vs42_ppc64,
+ vsx_vs43_ppc64,
+ vsx_vs44_ppc64,
+ vsx_vs45_ppc64,
+ vsx_vs46_ppc64,
+ vsx_vs47_ppc64,
+ vsx_vs48_ppc64,
+ vsx_vs49_ppc64,
+ vsx_vs50_ppc64,
+ vsx_vs51_ppc64,
+ vsx_vs52_ppc64,
+ vsx_vs53_ppc64,
+ vsx_vs54_ppc64,
+ vsx_vs55_ppc64,
+ vsx_vs56_ppc64,
+ vsx_vs57_ppc64,
+ vsx_vs58_ppc64,
+ vsx_vs59_ppc64,
+ vsx_vs60_ppc64,
+ vsx_vs61_ppc64,
+ vsx_vs62_ppc64,
+ vsx_vs63_ppc64,
+ k_last_vsx_ppc64 = vsx_vs63_ppc64,
+
k_num_registers_ppc64,
k_num_gpr_registers_ppc64 = k_last_gpr_ppc64 - k_first_gpr_ppc64 + 1,
k_num_fpr_registers_ppc64 = k_last_fpr_ppc64 - k_first_fpr_ppc64 + 1,
k_num_vmx_registers_ppc64 = k_last_vmx_ppc64 - k_first_vmx_ppc64 + 1,
+ k_num_vsx_registers_ppc64 = k_last_vsx_ppc64 - k_first_vsx_ppc64 + 1,
};
#endif // LLDB_SOURCE_PLUGINS_PROCESS_UTILITY_LLDB_PPC64_REGISTER_ENUMS_H
|
🐧 Linux x64 Test Results
✅ The build succeeded and all tests passed. |
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You can test this locally with the following command:git-clang-format --diff origin/main HEAD --extensions h,cpp -- lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.cpp lldb/source/Plugins/Process/AIX/NativeRegisterContextAIX_ppc64.h lldb/source/Plugins/Process/Utility/RegisterInfos_ppc64.h lldb/source/Plugins/Process/Utility/lldb-ppc64-register-enums.h lldb/source/Utility/PPC64_DWARF_Registers.h --diff_from_common_commit
View the diff from clang-format here.diff --git a/lldb/source/Plugins/Process/Utility/RegisterInfos_ppc64.h b/lldb/source/Plugins/Process/Utility/RegisterInfos_ppc64.h
index c8b6e592e..4f5bcf749 100644
--- a/lldb/source/Plugins/Process/Utility/RegisterInfos_ppc64.h
+++ b/lldb/source/Plugins/Process/Utility/RegisterInfos_ppc64.h
@@ -143,19 +143,19 @@
DEFINE_FPR_PPC64(f29, NULL, LLDB_INVALID_REGNUM), \
DEFINE_FPR_PPC64(f30, NULL, LLDB_INVALID_REGNUM), \
DEFINE_FPR_PPC64(f31, NULL, LLDB_INVALID_REGNUM), \
- {"fpscr", \
- NULL, \
- 8, \
- FPR_PPC64_OFFSET(fpscr), \
- lldb::eEncodingUint, \
- lldb::eFormatHex, \
- {ppc64_dwarf::dwarf_fpscr_ppc64, \
- ppc64_dwarf::dwarf_fpscr_ppc64, LLDB_INVALID_REGNUM, \
- LLDB_INVALID_REGNUM, fpr_fpscr_ppc64}, \
- NULL, \
- NULL, \
- NULL, \
- }, \
+ { \
+ "fpscr", \
+ NULL, \
+ 8, \
+ FPR_PPC64_OFFSET(fpscr), \
+ lldb::eEncodingUint, \
+ lldb::eFormatHex, \
+ {ppc64_dwarf::dwarf_fpscr_ppc64, ppc64_dwarf::dwarf_fpscr_ppc64, \
+ LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, fpr_fpscr_ppc64}, \
+ NULL, \
+ NULL, \
+ NULL, \
+ }, \
DEFINE_VMX_PPC64(vr0, LLDB_INVALID_REGNUM), \
DEFINE_VMX_PPC64(vr1, LLDB_INVALID_REGNUM), \
DEFINE_VMX_PPC64(vr2, LLDB_INVALID_REGNUM), \
@@ -188,31 +188,32 @@
DEFINE_VMX_PPC64(vr29, LLDB_INVALID_REGNUM), \
DEFINE_VMX_PPC64(vr30, LLDB_INVALID_REGNUM), \
DEFINE_VMX_PPC64(vr31, LLDB_INVALID_REGNUM), \
- {"vscr", \
- NULL, \
- 4, \
- VMX_PPC64_OFFSET(vscr), \
- lldb::eEncodingUint, \
- lldb::eFormatHex, \
- {ppc64_dwarf::dwarf_vscr_ppc64, ppc64_dwarf::dwarf_vscr_ppc64, \
- LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, vmx_vscr_ppc64}, \
- NULL, \
- NULL, \
- NULL, \
- }, \
- {"vrsave", \
- NULL, \
- 4, \
- VMX_PPC64_OFFSET(vrsave), \
- lldb::eEncodingUint, \
- lldb::eFormatHex, \
- {ppc64_dwarf::dwarf_vrsave_ppc64, \
- ppc64_dwarf::dwarf_vrsave_ppc64, LLDB_INVALID_REGNUM, \
- LLDB_INVALID_REGNUM, vmx_vrsave_ppc64}, \
- NULL, \
- NULL, \
- NULL, \
- }, \
+ { \
+ "vscr", \
+ NULL, \
+ 4, \
+ VMX_PPC64_OFFSET(vscr), \
+ lldb::eEncodingUint, \
+ lldb::eFormatHex, \
+ {ppc64_dwarf::dwarf_vscr_ppc64, ppc64_dwarf::dwarf_vscr_ppc64, \
+ LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, vmx_vscr_ppc64}, \
+ NULL, \
+ NULL, \
+ NULL, \
+ }, \
+ { \
+ "vrsave", \
+ NULL, \
+ 4, \
+ VMX_PPC64_OFFSET(vrsave), \
+ lldb::eEncodingUint, \
+ lldb::eFormatHex, \
+ {ppc64_dwarf::dwarf_vrsave_ppc64, ppc64_dwarf::dwarf_vrsave_ppc64, \
+ LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, vmx_vrsave_ppc64}, \
+ NULL, \
+ NULL, \
+ NULL, \
+ }, \
DEFINE_VSX_PPC64(vs0, LLDB_INVALID_REGNUM), \
DEFINE_VSX_PPC64(vs1, LLDB_INVALID_REGNUM), \
DEFINE_VSX_PPC64(vs2, LLDB_INVALID_REGNUM), \
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DhruvSrivastavaX
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DavidSpickett and
labath and unassigned
DavidSpickett and
labath
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Author
|
Please note that the code formatting is failing due to some existing code in RegisterInfos_ppc64.h. Kindly review the changes without considering the code formatting for now; we can address and fix the formatting after the review if required. |
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|
@HemangGadhavi |
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This PR is in reference to porting LLDB on AIX. Link to discussions on llvm discourse and github:
The complete changes for porting are present in this draft PR:
Extending LLDB to work on AIX #102601