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author | Alexey Samsonov <vonosmas@gmail.com> | 2014-06-12 18:52:35 +0000 |
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committer | Alexey Samsonov <vonosmas@gmail.com> | 2014-06-12 18:52:35 +0000 |
commit | 4dfa6812d7e70e419dd2f302b4108f205145aa4b (patch) | |
tree | 5f8bd25dfd3a07ce9b58ee7a2f3f09842b459358 /test | |
parent | 7c3436d9411f96d39b7de17d997289893c330d44 (diff) | |
download | llvm-4dfa6812d7e70e419dd2f302b4108f205145aa4b.tar.gz llvm-4dfa6812d7e70e419dd2f302b4108f205145aa4b.tar.bz2 llvm-4dfa6812d7e70e419dd2f302b4108f205145aa4b.tar.xz |
[llvm-symbolizer] Fix parsing DW_AT_ranges in Fission skeleton compile unit DIEs.
Turns out that DW_AT_ranges_base attribute sets the offset for
DW_AT_ranges values specified in the .dwo file, but not for DW_AT_ranges specified
in the skeleton compile unit DIE in the main executable. This is extremely confusing,
and would hopefully be fixed in DWARF-5 when it's finalized. For now this
behavior makes sense, as otherwise Fission would break DWARF consumers who
doesn't know anything about DW_AT_ranges_base.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210809 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r-- | test/DebugInfo/Inputs/fission-ranges.cc | 17 | ||||
-rwxr-xr-x | test/DebugInfo/Inputs/fission-ranges.elf-x86_64 | bin | 0 -> 8693 bytes | |||
-rw-r--r-- | test/DebugInfo/llvm-symbolizer.test | 4 |
3 files changed, 21 insertions, 0 deletions
diff --git a/test/DebugInfo/Inputs/fission-ranges.cc b/test/DebugInfo/Inputs/fission-ranges.cc new file mode 100644 index 0000000000..a585bf9c00 --- /dev/null +++ b/test/DebugInfo/Inputs/fission-ranges.cc @@ -0,0 +1,17 @@ +static inline int inlined_f() { + volatile int x = 2; + return x; +} + +int main() { + return inlined_f(); +} + +// Build instructions: +// $ mkdir /tmp/dbginfo +// $ cp fission-ranges.cc /tmp/dbginfo/ +// $ cd /tmp/dbginfo +// $ gcc -gsplit-dwarf -O2 -fPIC fission-ranges.cc -c -o obj2.o +// $ clang -gsplit-dwarf -O2 -fsanitize=address -fPIC -Dmain=foo fission-ranges.cc -c -o obj1.o +// $ gcc obj1.o obj2.o -shared -o <output> +// $ objcopy --remove-section=.debug_aranges <output> diff --git a/test/DebugInfo/Inputs/fission-ranges.elf-x86_64 b/test/DebugInfo/Inputs/fission-ranges.elf-x86_64 Binary files differnew file mode 100755 index 0000000000..3d2fd79dd7 --- /dev/null +++ b/test/DebugInfo/Inputs/fission-ranges.elf-x86_64 diff --git a/test/DebugInfo/llvm-symbolizer.test b/test/DebugInfo/llvm-symbolizer.test index 6aa12876fa..1ddfd9cf55 100644 --- a/test/DebugInfo/llvm-symbolizer.test +++ b/test/DebugInfo/llvm-symbolizer.test @@ -17,6 +17,7 @@ RUN: echo "%p/Inputs/macho-universal 0x1f84" >> %t.input RUN: echo "%p/Inputs/macho-universal:i386 0x1f67" >> %t.input RUN: echo "%p/Inputs/macho-universal:x86_64 0x100000f05" >> %t.input RUN: echo "%p/Inputs/llvm-symbolizer-dwo-test 0x400514" >> %t.input +RUN: echo "%p/Inputs/fission-ranges.elf-x86_64 0x720" >> %t.input RUN: llvm-symbolizer --functions=linkage --inlining --demangle=false \ RUN: --default-arch=i386 < %t.input | FileCheck %s @@ -90,6 +91,9 @@ CHECK: _Z3inci CHECK: main CHECK-NEXT: llvm-symbolizer-dwo-test.cc:11 +CHECK: main +CHECK-NEXT: {{.*}}fission-ranges.cc:6 + RUN: echo "unexisting-file 0x1234" > %t.input2 RUN: llvm-symbolizer < %t.input2 |