mgorny created this revision.
mgorny added reviewers: labath, krytarowski, emaste.
Herald added subscribers: pengfei, arichardson.
mgorny requested review of this revision.
The FreeBSD coredumps from i386 systems contain only FSAVE-style
NT_FPREGSET. Since we do not really support reading that kind of data
anymore, just use NT_X86_XSTATE to get FXSAVE-style data when available.
https://reviews.llvm.org/D101086
Files:
lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
lldb/test/Shell/Register/Core/x86-32-freebsd-fp.test
Index: lldb/test/Shell/Register/Core/x86-32-freebsd-fp.test
===================================================================
--- /dev/null
+++ lldb/test/Shell/Register/Core/x86-32-freebsd-fp.test
@@ -0,0 +1,3 @@
+# RUN: %lldb -b -s %s -c %p/Inputs/x86-32-freebsd.core | FileCheck
%p/Inputs/x86-fp.check
+
+register read --all
Index: lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
===================================================================
--- lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
+++ lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
@@ -96,6 +96,9 @@
llvm::ArrayRef<RegsetDesc> RegsetDescs);
constexpr RegsetDesc FPR_Desc[] = {
+ // FreeBSD/i386 core NT_FPREGSET is x87 FSAVE result but the XSAVE dump
+ // starts with FXSAVE struct, so use that instead if available.
+ {llvm::Triple::FreeBSD, llvm::Triple::x86, llvm::ELF::NT_X86_XSTATE},
{llvm::Triple::FreeBSD, llvm::Triple::UnknownArch, llvm::ELF::NT_FPREGSET},
// In a i386 core file NT_FPREGSET is present, but it's not the result
// of the FXSAVE instruction like in 64 bit files.
Index: lldb/test/Shell/Register/Core/x86-32-freebsd-fp.test
===================================================================
--- /dev/null
+++ lldb/test/Shell/Register/Core/x86-32-freebsd-fp.test
@@ -0,0 +1,3 @@
+# RUN: %lldb -b -s %s -c %p/Inputs/x86-32-freebsd.core | FileCheck %p/Inputs/x86-fp.check
+
+register read --all
Index: lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
===================================================================
--- lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
+++ lldb/source/Plugins/Process/elf-core/RegisterUtilities.h
@@ -96,6 +96,9 @@
llvm::ArrayRef<RegsetDesc> RegsetDescs);
constexpr RegsetDesc FPR_Desc[] = {
+ // FreeBSD/i386 core NT_FPREGSET is x87 FSAVE result but the XSAVE dump
+ // starts with FXSAVE struct, so use that instead if available.
+ {llvm::Triple::FreeBSD, llvm::Triple::x86, llvm::ELF::NT_X86_XSTATE},
{llvm::Triple::FreeBSD, llvm::Triple::UnknownArch, llvm::ELF::NT_FPREGSET},
// In a i386 core file NT_FPREGSET is present, but it's not the result
// of the FXSAVE instruction like in 64 bit files.
_______________________________________________
lldb-commits mailing list
lldb-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
