[llvm-objcopy] Add --prefix-alloc-sections
This patch adds support for --prefix-alloc-sections, which adds a prefix
to every allocated section names.
It adds a prefix after renaming section names by --rename-section as GNU
objcopy does.
Fixes PR41266: https://bugs.llvm.org/show_bug.cgi?id=41266
Differential Revision: https://reviews.llvm.org/D60042
Patch by Seiya Nuta.
llvm-svn: 360233
diff --git a/llvm/test/tools/llvm-objcopy/ELF/prefix-alloc-sections.test b/llvm/test/tools/llvm-objcopy/ELF/prefix-alloc-sections.test
new file mode 100644
index 0000000..4cb9df5
--- /dev/null
+++ b/llvm/test/tools/llvm-objcopy/ELF/prefix-alloc-sections.test
@@ -0,0 +1,36 @@
+# RUN: yaml2obj %s > %t
+# RUN: llvm-objcopy --prefix-alloc-sections=.prefix %t %t2
+# RUN: llvm-readobj --sections %t2 | FileCheck %s
+
+!ELF
+FileHeader:
+ Class: ELFCLASS64
+ Data: ELFDATA2LSB
+ Type: ET_REL
+ Machine: EM_X86_64
+Sections:
+ - Name: .foo
+ Type: SHT_PROGBITS
+ Flags: [ ]
+ - Name: .prefix.already_prefixed
+ Type: SHT_PROGBITS
+ Flags: [ SHF_ALLOC ]
+ - Name: .text
+ Type: SHT_PROGBITS
+ Flags: [ SHF_ALLOC ]
+ - Name: .rel.text
+ Type: SHT_REL
+ Info: .text
+ - Name: .rela.data
+ Type: SHT_RELA
+ Info: .data
+ - Name: .data
+ Type: SHT_PROGBITS
+ Flags: [ SHF_ALLOC ]
+
+# CHECK: Name: .foo
+# CHECK: Name: .prefix.prefix.already_prefixed
+# CHECK: Name: .prefix.text
+# CHECK: Name: .rel.prefix.text
+# CHECK: Name: .rela.prefix.data
+# CHECK: Name: .prefix.data