omjavaid updated this revision to Diff 263937.
omjavaid added a comment.
This updated diff reduces impact of register numbering correction on LLGS code
by removing UserRegIndexToRegInfosIndex out of the code and instead overriding
GetRegisterInfoAtIndex in NativeRegisterContextLinux_arm64.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D77043/new/
https://reviews.llvm.org/D77043
Files:
lldb/include/lldb/Host/common/NativeRegisterContext.h
lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.cpp
lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.h
lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
Index: lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
===================================================================
--- lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
+++ lldb/source/Plugins/Process/gdb-remote/GDBRemoteRegisterContext.cpp
@@ -242,11 +242,15 @@
// Index of the primordial register.
bool success = true;
for (uint32_t idx = 0; success; ++idx) {
- const uint32_t prim_reg = reg_info->value_regs[idx];
+ uint32_t prim_reg = reg_info->value_regs[idx];
if (prim_reg == LLDB_INVALID_REGNUM)
break;
// We have a valid primordial register as our constituent. Grab the
// corresponding register info.
+ uint32_t regnum = ConvertRegisterKindToRegisterNumber(
+ eRegisterKindProcessPlugin, prim_reg);
+ if (regnum != LLDB_INVALID_REGNUM)
+ prim_reg = regnum;
const RegisterInfo *prim_reg_info = GetRegisterInfoAtIndex(prim_reg);
if (prim_reg_info == nullptr)
success = false;
@@ -375,11 +379,15 @@
// Invalidate this composite register first.
for (uint32_t idx = 0; success; ++idx) {
- const uint32_t reg = reg_info->value_regs[idx];
+ uint32_t reg = reg_info->value_regs[idx];
if (reg == LLDB_INVALID_REGNUM)
break;
// We have a valid primordial register as our constituent. Grab the
// corresponding register info.
+ uint32_t lldb_regnum = ConvertRegisterKindToRegisterNumber(
+ eRegisterKindProcessPlugin, reg);
+ if (lldb_regnum != LLDB_INVALID_REGNUM)
+ reg = lldb_regnum;
const RegisterInfo *value_reg_info = GetRegisterInfoAtIndex(reg);
if (value_reg_info == nullptr)
success = false;
@@ -397,6 +405,10 @@
for (uint32_t idx = 0, reg = reg_info->invalidate_regs[0];
reg != LLDB_INVALID_REGNUM;
reg = reg_info->invalidate_regs[++idx]) {
+ uint32_t lldb_regnum = ConvertRegisterKindToRegisterNumber(
+ eRegisterKindProcessPlugin, reg);
+ if (lldb_regnum != LLDB_INVALID_REGNUM)
+ reg = lldb_regnum;
SetRegisterIsValid(reg, false);
}
}
Index: lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
===================================================================
--- lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+++ lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
@@ -458,15 +458,18 @@
}
}
-static void CollectRegNums(const uint32_t *reg_num, StreamString &response,
+static void CollectRegNums(NativeRegisterContext ®_context,
+ const uint32_t *reg_num, StreamString &response,
bool usehex) {
+ uint32_t reg_index = 0;
for (int i = 0; *reg_num != LLDB_INVALID_REGNUM; ++reg_num, ++i) {
+ reg_index = reg_context.RegInfosIndexToUserRegIndex(*reg_num);
if (i > 0)
response.PutChar(',');
if (usehex)
- response.Printf("%" PRIx32, *reg_num);
+ response.Printf("%" PRIx32, reg_index);
else
- response.Printf("%" PRIu32, *reg_num);
+ response.Printf("%" PRIu32, reg_index);
}
}
@@ -1820,13 +1823,13 @@
if (reg_info->value_regs && reg_info->value_regs[0] != LLDB_INVALID_REGNUM) {
response.PutCString("container-regs:");
- CollectRegNums(reg_info->value_regs, response, true);
+ CollectRegNums(reg_context, reg_info->value_regs, response, true);
response.PutChar(';');
}
if (reg_info->invalidate_regs && reg_info->invalidate_regs[0]) {
response.PutCString("invalidate-regs:");
- CollectRegNums(reg_info->invalidate_regs, response, true);
+ CollectRegNums(reg_context, reg_info->invalidate_regs, response, true);
response.PutChar(';');
}
@@ -2811,13 +2814,13 @@
if (reg_info->value_regs &&
reg_info->value_regs[0] != LLDB_INVALID_REGNUM) {
response.PutCString("value_regnums=\"");
- CollectRegNums(reg_info->value_regs, response, false);
+ CollectRegNums(reg_context, reg_info->value_regs, response, false);
response.Printf("\" ");
}
if (reg_info->invalidate_regs && reg_info->invalidate_regs[0]) {
response.PutCString("invalidate_regnums=\"");
- CollectRegNums(reg_info->invalidate_regs, response, false);
+ CollectRegNums(reg_context, reg_info->invalidate_regs, response, false);
response.Printf("\" ");
}
Index: lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.h
===================================================================
--- lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.h
+++ lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.h
@@ -29,6 +29,8 @@
uint32_t GetUserRegisterCount() const override;
+ uint32_t RegInfosIndexToUserRegIndex(uint32_t user_reg_index) const override;
+
const RegisterInfo *GetRegisterInfoAtIndex(uint32_t reg_index) const override;
const RegisterInfoInterface &GetRegisterInfoInterface() const;
Index: lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.cpp
===================================================================
--- lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.cpp
+++ lldb/source/Plugins/Process/Utility/NativeRegisterContextRegisterInfo.cpp
@@ -28,6 +28,11 @@
return m_register_info_interface_up->GetUserRegisterCount();
}
+uint32_t NativeRegisterContextRegisterInfo::RegInfosIndexToUserRegIndex(
+ uint32_t reg_infos_index) const {
+ return reg_infos_index;
+}
+
const RegisterInfo *NativeRegisterContextRegisterInfo::GetRegisterInfoAtIndex(
uint32_t reg_index) const {
if (reg_index <= GetRegisterCount())
Index: lldb/include/lldb/Host/common/NativeRegisterContext.h
===================================================================
--- lldb/include/lldb/Host/common/NativeRegisterContext.h
+++ lldb/include/lldb/Host/common/NativeRegisterContext.h
@@ -35,6 +35,9 @@
virtual uint32_t GetUserRegisterCount() const = 0;
+ virtual uint32_t
+ RegInfosIndexToUserRegIndex(uint32_t user_reg_index) const = 0;
+
virtual const RegisterInfo *GetRegisterInfoAtIndex(uint32_t reg) const = 0;
const char *GetRegisterSetNameForRegisterAtIndex(uint32_t reg_index) const;
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