.. option:: --strip-all, -S
For ELF objects, remove from the output all symbols and non-alloc sections not
- within segments, except for .gnu.warning sections and the section name table.
+ within segments, except for .gnu.warning, .ARM.attribute sections and the
+ section name table.
For COFF and Mach-O objects, remove all symbols, debug sections, and
relocations from the output.
.. option:: --strip-all, -S
For ELF objects, remove from the output all symbols and non-alloc sections not
- within segments, except for .gnu.warning sections and the section name table.
+ within segments, except for .gnu.warning, .ARM.attribute sections and the
+ section name table.
For COFF objects, remove all symbols, debug sections, and relocations from the
output.
--- /dev/null
+## This test makes sure that --strip-all and --strip-all-gnu preserve
+## .ARM.attributes sections in ELF files. This is needed to maintain
+## compatibility for Ubuntu/Debian distributions on ARM.
+
+# RUN: yaml2obj %s > %t
+# RUN: llvm-objcopy --strip-all %t %t2
+# RUN: llvm-readobj --sections %t2 | FileCheck %s
+# RUN: llvm-objcopy --strip-all-gnu %t %t3
+# RUN: llvm-readobj --sections %t3 | FileCheck %s
+# RUN: llvm-strip %t -o %t4
+# RUN: cmp %t4 %t2
+# RUN: llvm-strip --strip-all-gnu %t -o %t5
+# RUN: cmp %t5 %t3
+
+!ELF
+FileHeader:
+ Class: ELFCLASS32
+ Data: ELFDATA2LSB
+ Type: ET_DYN
+ Machine: EM_ARM
+Sections:
+ - Name: .ARM.attributes
+ Type: SHT_ARM_ATTRIBUTES
+
+# CHECK: Name: .ARM.attributes
def strip_all : Flag<["--"], "strip-all">,
HelpText<"Remove non-allocated sections outside segments. "
- ".gnu.warning* sections are not removed">;
+ ".gnu.warning* and .ARM.attribute sections are not "
+ "removed">;
def strip_all_gnu
: Flag<["--"], "strip-all-gnu">,
return false;
if (StringRef(Sec.Name).startswith(".gnu.warning"))
return false;
+ // We keep the .ARM.attribute section to maintain compatibility
+ // with Debian derived distributions. This is a bug in their
+ // patchset as documented here:
+ // https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=943798
+ if (Sec.Type == SHT_ARM_ATTRIBUTES)
+ return false;
if (Sec.ParentSegment != nullptr)
return false;
return (Sec.Flags & SHF_ALLOC) == 0;