Fix upper->lower case for /usr/lib/debug/.build-id/**.debug

I have found the lookup by build-id
(when lookup by /usr/lib/debug/path/name/exec.debug failed) does not work as
LLDB tries the build-id hex string in uppercase but Fedora uses lowercase.

xubuntu-16.10 also uses lowercase during my test:
/usr/lib/debug/.build-id/6c/61f3566329f43d03f812ae7057e9e7391b5ff6.debug

Differential revision: https://reviews.llvm.org/D42852

llvm-svn: 324222

3 files changed, 44 insertions, 0 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/linux/buildidcase/Makefile b/lldb/packages/Python/lldbsuite/test/linux/buildidcase/Makefile
new file mode 100644
index 00000000000..31a33f0156f
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/linux/buildidcase/Makefile
@@ -0,0 +1,20 @@
+LEVEL = ../../make
+C_SOURCES := main.c
+LD_EXTRAS += -Wl,--build-id=sha1
+
+all: stripped.out
+
+.PHONY: .build-id
+stripped.out .build-id: a.out
+	$(OBJCOPY) -j .note.gnu.build-id -O binary $< tmp
+	rm -rf .build-id
+	fn=`od -An -tx1 <tmp|tr -d ' \n'|sed -e 's/^.\{32\}//' -e 's#^..#.build-id/&/#' -e 's#$$#.debug#'` && \
+	mkdir -p `dirname $$fn` && \
+	$(OBJCOPY) --only-keep-debug $< $$fn && \
+	$(OBJCOPY) --strip-all --add-gnu-debuglink=$$fn $< stripped.out
+	$(RM) tmp
+
+clean::
+	$(RM) -r stripped.out .build-id
+
+include $(LEVEL)/Makefile.rules
diff --git a/lldb/packages/Python/lldbsuite/test/linux/buildidcase/TestTargetSymbolsBuildidCase.py b/lldb/packages/Python/lldbsuite/test/linux/buildidcase/TestTargetSymbolsBuildidCase.py
new file mode 100644
index 00000000000..f4c965eba31
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/linux/buildidcase/TestTargetSymbolsBuildidCase.py
@@ -0,0 +1,21 @@
+""" Testing separate debug info loading by its .build-id. """
+import os
+import time
+import lldb
+import sys
+from lldbsuite.test.decorators import *
+from lldbsuite.test.lldbtest import *
+from lldbsuite.test import lldbutil
+
+
+class TestTargetSymbolsBuildidCase(TestBase):
+
+    mydir = TestBase.compute_mydir(__file__)
+
+    @no_debug_info_test  # Prevent the genaration of the dwarf version of this test
+    @skipUnlessPlatform(['linux'])
+    def test_target_symbols_buildid_case(self):
+        self.build(clean=True)
+        exe = self.getBuildArtifact("stripped.out")
+
+        lldbutil.run_to_name_breakpoint(self, "main", exe_name = exe)
diff --git a/lldb/packages/Python/lldbsuite/test/linux/buildidcase/main.c b/lldb/packages/Python/lldbsuite/test/linux/buildidcase/main.c
new file mode 100644
index 00000000000..4cce7f667ff
--- /dev/null
+++ b/lldb/packages/Python/lldbsuite/test/linux/buildidcase/main.c
@@ -0,0 +1,3 @@
+int main() {
+  return 0;
+}