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delve/1000-add-loongarch64-support-not-upstream-modified.patch
herengui 15e4060dbf 添加龙芯架构支持 
Signed-off-by: herengui <herengui@kylinsec.com.cn>
(cherry picked from commit 91b4abdf69d62640a91ec0a081579f4648dc555b)
2023-09-13 18:30:42 +08:00

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From bc6e52e4db383f796b5301c906c852298d964539 Mon Sep 17 00:00:00 2001
From: herengui <herengui@kylinsec.com.cn>
Date: Thu, 31 Aug 2023 11:14:24 +0800
Subject: [PATCH 1000/1001] add loongarch64 support not upstream modified
Signed-off-by: herengui <herengui@kylinsec.com.cn>
---
pkg/proc/bininfo.go | 3 ++
pkg/proc/core/linux_core.go | 54 ++++++++++++++++++++++
pkg/proc/core/minidump/fileflags_string.go | 2 +-
pkg/proc/core/minidump/minidump.go | 1 +
pkg/proc/native/ptrace_linux_64bit.go | 2 +-
pkg/proc/native/support_sentinel.go | 2 +-
pkg/proc/pe.go | 2 +
pkg/proc/stack.go | 4 +-
service/debugger/debugger_test.go | 3 ++
service/debugger/debugger_unix_test.go | 3 ++
10 files changed, 71 insertions(+), 5 deletions(-)
diff --git a/pkg/proc/bininfo.go b/pkg/proc/bininfo.go
index 196280f..4d9612b 100644
--- a/pkg/proc/bininfo.go
+++ b/pkg/proc/bininfo.go
@@ -121,6 +121,7 @@ var (
elf.EM_X86_64: true,
elf.EM_AARCH64: true,
elf.EM_386: true,
+ elf.EM_LOONGARCH: true,
}
supportedWindowsArch = map[PEMachine]bool{
@@ -436,6 +437,8 @@ func NewBinaryInfo(goos, goarch string) *BinaryInfo {
r.Arch = AMD64Arch(goos)
case "arm64":
r.Arch = ARM64Arch(goos)
+ case "loong64":
+ r.Arch = LOONG64Arch(goos)
}
return r
}
diff --git a/pkg/proc/core/linux_core.go b/pkg/proc/core/linux_core.go
index 5d758c6..300c67a 100644
--- a/pkg/proc/core/linux_core.go
+++ b/pkg/proc/core/linux_core.go
@@ -38,6 +38,7 @@ const _NT_FPREGSET elf.NType = 0x2
const (
_EM_AARCH64 = 183
_EM_X86_64 = 62
+ _EM_LOONGARCH = 258
_ARM_FP_HEADER_START = 512
)
@@ -47,6 +48,7 @@ func linuxThreadsFromNotes(p *process, notes []*note, machineType elf.Machine) p
var currentThread proc.Thread
var lastThreadAMD *linuxAMD64Thread
var lastThreadARM *linuxARM64Thread
+ var lastThreadLOONG *linuxLOONG64Thread
for _, note := range notes {
switch note.Type {
case elf.NT_PRSTATUS:
@@ -64,12 +66,23 @@ func linuxThreadsFromNotes(p *process, notes []*note, machineType elf.Machine) p
if currentThread == nil {
currentThread = p.Threads[int(t.Pid)]
}
+ } else if machineType == _EM_LOONGARCH {
+ t := note.Desc.(*linuxPrStatusLOONG64)
+ lastThreadLOONG = &linuxLOONG64Thread{linutil.LOONG64Registers{Regs: &t.Reg}, t}
+ p.Threads[int(t.Pid)] = &thread{lastThreadLOONG, p, proc.CommonThread{}}
+ if currentThread == nil {
+ currentThread = p.Threads[int(t.Pid)]
+ }
}
case _NT_FPREGSET:
if machineType == _EM_AARCH64 {
if lastThreadARM != nil {
lastThreadARM.regs.Fpregs = note.Desc.(*linutil.ARM64PtraceFpRegs).Decode()
}
+ } else if machineType == _EM_LOONGARCH {
+ if lastThreadLOONG != nil {
+ lastThreadLOONG.regs.Fpregs = note.Desc.(*linutil.LOONG64PtraceFpRegs).Decode()
+ }
}
case _NT_X86_XSTATE:
if machineType == _EM_X86_64 {
@@ -129,6 +142,8 @@ func readLinuxCore(corePath, exePath string) (*process, proc.Thread, error) {
bi = proc.NewBinaryInfo("linux", "amd64")
case _EM_AARCH64:
bi = proc.NewBinaryInfo("linux", "arm64")
+ case _EM_LOONGARCH:
+ bi = proc.NewBinaryInfo("linux", "loong64")
default:
return nil, nil, fmt.Errorf("unsupported machine type")
}
@@ -157,6 +172,11 @@ type linuxARM64Thread struct {
t *linuxPrStatusARM64
}
+type linuxLOONG64Thread struct {
+ regs linutil.LOONG64Registers
+ t *linuxPrStatusLOONG64
+}
+
func (t *linuxAMD64Thread) registers() (proc.Registers, error) {
var r linutil.AMD64Registers
r.Regs = t.regs.Regs
@@ -171,6 +191,13 @@ func (t *linuxARM64Thread) registers() (proc.Registers, error) {
return &r, nil
}
+func (t *linuxLOONG64Thread) registers() (proc.Registers, error) {
+ var r linutil.LOONG64Registers
+ r.Regs = t.regs.Regs
+ r.Fpregs = t.regs.Fpregs
+ return &r, nil
+}
+
func (t *linuxAMD64Thread) pid() int {
return int(t.t.Pid)
}
@@ -179,6 +206,10 @@ func (t *linuxARM64Thread) pid() int {
return int(t.t.Pid)
}
+func (t *linuxLOONG64Thread) pid() int {
+ return int(t.t.Pid)
+}
+
// Note is a note from the PT_NOTE prog.
// Relevant types:
// - NT_FILE: File mapping information, e.g. program text mappings. Desc is a LinuxNTFile.
@@ -250,6 +281,8 @@ func readNote(r io.ReadSeeker, machineType elf.Machine) (*note, error) {
note.Desc = &linuxPrStatusAMD64{}
} else if machineType == _EM_AARCH64 {
note.Desc = &linuxPrStatusARM64{}
+ } else if machineType == _EM_LOONGARCH {
+ note.Desc = &linuxPrStatusLOONG64{}
} else {
return nil, fmt.Errorf("unsupported machine type")
}
@@ -297,6 +330,14 @@ func readNote(r io.ReadSeeker, machineType elf.Machine) (*note, error) {
}
note.Desc = fpregs
}
+ if machineType == _EM_LOONGARCH {
+ fpregs := &linutil.LOONG64PtraceFpRegs{}
+ rdr := bytes.NewReader(desc)
+ if err := binary.Read(rdr, binary.LittleEndian, fpregs.Byte()); err != nil {
+ return nil, err
+ }
+ note.Desc = fpregs
+ }
}
if err := skipPadding(r, 4); err != nil {
return nil, fmt.Errorf("aligning after desc: %v", err)
@@ -408,6 +449,19 @@ type linuxPrStatusARM64 struct {
Fpvalid int32
}
+// LinuxPrStatusLOONG64 is a copy of the prstatus kernel struct.
+type linuxPrStatusLOONG64 struct {
+ Siginfo linuxSiginfo
+ Cursig uint16
+ _ [2]uint8
+ Sigpend uint64
+ Sighold uint64
+ Pid, Ppid, Pgrp, Sid int32
+ Utime, Stime, CUtime, CStime linuxCoreTimeval
+ Reg linutil.LOONG64PtraceRegs
+ Fpvalid int32
+}
+
// LinuxSiginfo is a copy of the
// siginfo kernel struct.
type linuxSiginfo struct {
diff --git a/pkg/proc/core/minidump/fileflags_string.go b/pkg/proc/core/minidump/fileflags_string.go
index b69969e..54e9c47 100644
--- a/pkg/proc/core/minidump/fileflags_string.go
+++ b/pkg/proc/core/minidump/fileflags_string.go
@@ -49,7 +49,7 @@ func (i StreamType) String() string {
const (
_Arch_name_0 = "CpuArchitectureX86CpuArchitectureMipsCpuArchitectureAlphaCpuArchitecturePPCCpuArchitectureSHXCpuArchitectureARMCpuArchitectureIA64CpuArchitectureAlpha64CpuArchitectureMSILCpuArchitectureAMD64CpuArchitectureWoW64"
- _Arch_name_1 = "CpuArchitectureARM64"
+ _Arch_name_1 = "CpuArchitectureARM64CpuArchitectureLoong64"
_Arch_name_2 = "CpuArchitectureUnknown"
)
diff --git a/pkg/proc/core/minidump/minidump.go b/pkg/proc/core/minidump/minidump.go
index 9348f3c..51f22b8 100644
--- a/pkg/proc/core/minidump/minidump.go
+++ b/pkg/proc/core/minidump/minidump.go
@@ -313,6 +313,7 @@ const (
CpuArchitectureAMD64 Arch = 9
CpuArchitectureWoW64 Arch = 10
CpuArchitectureARM64 Arch = 12
+ CpuArchitectureLoong64 Arch = 13
CpuArchitectureUnknown Arch = 0xffff
)
diff --git a/pkg/proc/native/ptrace_linux_64bit.go b/pkg/proc/native/ptrace_linux_64bit.go
index d31cdf5..d96bf4b 100644
--- a/pkg/proc/native/ptrace_linux_64bit.go
+++ b/pkg/proc/native/ptrace_linux_64bit.go
@@ -1,4 +1,4 @@
-// +build linux,amd64 linux,arm64
+// +build linux,amd64 linux,arm64 linux,loong64
package native
diff --git a/pkg/proc/native/support_sentinel.go b/pkg/proc/native/support_sentinel.go
index d627be9..c54ac1b 100644
--- a/pkg/proc/native/support_sentinel.go
+++ b/pkg/proc/native/support_sentinel.go
@@ -1,5 +1,5 @@
// This file is used to detect build on unsupported GOOS/GOARCH combinations.
-//+build !linux,!darwin,!windows,!freebsd linux,!amd64,!arm64,!386 darwin,!amd64,!arm64 windows,!amd64 freebsd,!amd64
+//+build !linux,!darwin,!windows,!freebsd linux,!amd64,!arm64,!loong64,!386 darwin,!amd64,!arm64 windows,!amd64 freebsd,!amd64
package your_operating_system_and_architecture_combination_is_not_supported_by_delve
diff --git a/pkg/proc/pe.go b/pkg/proc/pe.go
index 21a9a27..6ee1965 100644
--- a/pkg/proc/pe.go
+++ b/pkg/proc/pe.go
@@ -14,6 +14,7 @@ const (
IMAGE_FILE_MACHINE_EBC = 0xebc
IMAGE_FILE_MACHINE_I386 = 0x14c
IMAGE_FILE_MACHINE_IA64 = 0x200
+ IMAGE_FILE_MACHINE_LOONGARCH64 = 0x6264
IMAGE_FILE_MACHINE_M32R = 0x9041
IMAGE_FILE_MACHINE_MIPS16 = 0x266
IMAGE_FILE_MACHINE_MIPSFPU = 0x366
@@ -42,6 +43,7 @@ var PEMachineString = map[uint16]string{
IMAGE_FILE_MACHINE_EBC: "ebc",
IMAGE_FILE_MACHINE_I386: "i386",
IMAGE_FILE_MACHINE_IA64: "ia64",
+ IMAGE_FILE_MACHINE_LOONGARCH64: "loong64",
IMAGE_FILE_MACHINE_M32R: "m32r",
IMAGE_FILE_MACHINE_MIPS16: "mips16",
IMAGE_FILE_MACHINE_MIPSFPU: "mipsfpu",
diff --git a/pkg/proc/stack.go b/pkg/proc/stack.go
index 30a306c..2d2d406 100644
--- a/pkg/proc/stack.go
+++ b/pkg/proc/stack.go
@@ -268,7 +268,7 @@ func (it *stackIterator) switchToGoroutineStack() {
it.pc = it.g.PC
it.regs.Reg(it.regs.SPRegNum).Uint64Val = it.g.SP
it.regs.AddReg(it.regs.BPRegNum, op.DwarfRegisterFromUint64(it.g.BP))
- if it.bi.Arch.Name == "arm64" {
+ if (it.bi.Arch.Name == "arm64") || (it.bi.Arch.Name == "loong64") {
it.regs.Reg(it.regs.LRRegNum).Uint64Val = it.g.LR
}
}
@@ -461,7 +461,7 @@ func (it *stackIterator) advanceRegs() (callFrameRegs op.DwarfRegisters, ret uin
}
}
- if it.bi.Arch.Name == "arm64" {
+ if (it.bi.Arch.Name == "arm64") || (it.bi.Arch.Name == "loong64") {
if ret == 0 && it.regs.Reg(it.regs.LRRegNum) != nil {
ret = it.regs.Reg(it.regs.LRRegNum).Uint64Val
}
diff --git a/service/debugger/debugger_test.go b/service/debugger/debugger_test.go
index 275e1a5..a7d0b6b 100644
--- a/service/debugger/debugger_test.go
+++ b/service/debugger/debugger_test.go
@@ -52,6 +52,9 @@ func TestDebugger_LaunchInvalidFormat(t *testing.T) {
if runtime.GOARCH == "arm64" && runtime.GOOS == "linux" {
os.Setenv("GOARCH", "amd64")
}
+ if runtime.GOARCH == "loong64" && runtime.GOOS == "linux" {
+ os.Setenv("GOARCH", "amd64")
+ }
os.Setenv("GOOS", switchOS[runtime.GOOS])
exepath := filepath.Join(buildtestdir, debugname)
if err := gobuild.GoBuild(debugname, []string{buildtestdir}, fmt.Sprintf("-o %s", exepath)); err != nil {
diff --git a/service/debugger/debugger_unix_test.go b/service/debugger/debugger_unix_test.go
index 8592968..703485d 100644
--- a/service/debugger/debugger_unix_test.go
+++ b/service/debugger/debugger_unix_test.go
@@ -34,6 +34,9 @@ func TestDebugger_LaunchNoExecutablePerm(t *testing.T) {
if runtime.GOARCH == "arm64" && runtime.GOOS == "linux" {
os.Setenv("GOARCH", "amd64")
}
+ if runtime.GOARCH == "loong64" && runtime.GOOS == "linux" {
+ os.Setenv("GOARCH", "amd64")
+ }
os.Setenv("GOOS", switchOS[runtime.GOOS])
exepath := filepath.Join(buildtestdir, debugname)
defer os.Remove(exepath)
--
2.41.0
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