Import LLVM 10.0.0 release including clang, lld and lldb.

ok hackroom
tested by plenty

3 files changed, 112 insertions, 0 deletions

diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/Makefile b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/Makefile
new file mode 100644
index 00000000000..493ea3f7f68
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/Makefile
@@ -0,0 +1,5 @@
+C_SOURCES := main.c
+
+CFLAGS ?= -g -fomit-frame-pointer
+
+include Makefile.rules
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/TestEhFrameUnwind.py b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/TestEhFrameUnwind.py
new file mode 100644
index 00000000000..905543ff769
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/TestEhFrameUnwind.py
@@ -0,0 +1,49 @@
+"""
+Test that we can backtrace correctly from Non ABI functions on the stack
+"""
+
+
+
+import lldb
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class EHFrameBasedUnwind(TestBase):
+    mydir = TestBase.compute_mydir(__file__)
+
+    @skipUnlessPlatform(['linux'])
+    @skipIf(archs=["aarch64", "arm", "i386", "i686"])
+    def test(self):
+        """Test that we can backtrace correctly from Non ABI  functions on the stack"""
+        self.build()
+        self.setTearDownCleanup()
+
+        exe = self.getBuildArtifact("a.out")
+        target = self.dbg.CreateTarget(exe)
+
+        self.assertTrue(target, VALID_TARGET)
+
+        lldbutil.run_break_set_by_symbol(self, "func")
+
+        process = target.LaunchSimple(
+            ["abc", "xyz"], None, self.get_process_working_directory())
+
+        if not process:
+            self.fail("SBTarget.Launch() failed")
+
+        if process.GetState() != lldb.eStateStopped:
+            self.fail("Process should be in the 'stopped' state, "
+                      "instead the actual state is: '%s'" %
+                      lldbutil.state_type_to_str(process.GetState()))
+
+        stacktraces = lldbutil.print_stacktraces(process, string_buffer=True)
+        self.expect(stacktraces, exe=False,
+                    substrs=['(int)argc=3'])
+
+        self.runCmd("thread step-inst")
+
+        stacktraces = lldbutil.print_stacktraces(process, string_buffer=True)
+        self.expect(stacktraces, exe=False,
+                    substrs=['(int)argc=3'])
diff --git a/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/main.c b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/main.c
new file mode 100644
index 00000000000..46de1efe626
--- /dev/null
+++ b/gnu/llvm/lldb/packages/Python/lldbsuite/test/functionalities/unwind/ehframe/main.c
@@ -0,0 +1,58 @@
+void func() {
+
+#ifdef __powerpc64__
+  __asm__ (
+    "mflr 0;"
+    "std 0,16(1);"
+    "addi 1,1,-24;"
+    "mr 31,1;"
+    ".cfi_def_cfa_offset 24;"
+    "addi 0,0,0;"
+    "addi 1,1,24;"
+    "ld 0,16(1);"
+    ".cfi_def_cfa_offset 0;"
+  );
+#elif !defined __mips__
+	__asm__ (
+		"pushq $0x10;"
+		".cfi_def_cfa_offset 16;"
+		"jmp label;"
+		"movq $0x48, %rax;"
+"label: subq $0x38, %rax;"
+		"movq $0x48, %rcx;"
+		"movq $0x48, %rdx;"
+		"movq $0x48, %rax;"
+		"popq %rax;"
+	);
+#elif __mips64
+   __asm__ (
+    "daddiu $sp,$sp,-16;"
+    ".cfi_def_cfa_offset 16;"
+    "sd $ra,8($sp);"
+    ".cfi_offset 31, -8;"
+    "daddiu $ra,$zero,0;"
+    "ld $ra,8($sp);"
+    "daddiu $sp, $sp,16;"
+    ".cfi_restore 31;"
+    ".cfi_def_cfa_offset 0;"
+   );
+#else
+   // For MIPS32
+   __asm__ (
+    "addiu $sp,$sp,-8;"
+    ".cfi_def_cfa_offset 8;"
+    "sw $ra,4($sp);"
+    ".cfi_offset 31, -4;"
+    "addiu $ra,$zero,0;"
+    "lw $ra,4($sp);"
+    "addiu $sp,$sp,8;"
+    ".cfi_restore 31;"
+    ".cfi_def_cfa_offset 0;"
+   );
+#endif
+}
+
+int main(int argc, char const *argv[])
+{
+	func();
+}