From d49c92b12433a641b089611fa3ca8f53005c97a0 Mon Sep 17 00:00:00 2001
From: Jake Ehrlich <jakehehrlich@google.com>
Date: Wed, 15 Nov 2017 19:13:31 +0000
Subject: [llvm-objcopy] Change -O binary to respect section removal and behave
 like GNU objcopy

The original -O binary implementation just copied segment data from the
object and dumped it into a file. This doesn't take into account any
operations performed on objects such as section removal. GNU objcopy has
some specific behavior that we'd also like to respect. For instance
using -O binary and -j <some_section> will dump <some_section> to a
file. This change implements GNU objcopy style -O binary to as close of
an approximation as I can determine.

Differential Revision: https://reviews.llvm.org/D39713

llvm-svn: 318324
---
 .../llvm-objcopy/two-seg-remove-third-sec.test     | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 llvm/test/tools/llvm-objcopy/two-seg-remove-third-sec.test

(limited to 'llvm/test/tools/llvm-objcopy/two-seg-remove-third-sec.test')

diff --git a/llvm/test/tools/llvm-objcopy/two-seg-remove-third-sec.test b/llvm/test/tools/llvm-objcopy/two-seg-remove-third-sec.test
new file mode 100644
index 00000000000..ad7af7f1221
--- /dev/null
+++ b/llvm/test/tools/llvm-objcopy/two-seg-remove-third-sec.test
@@ -0,0 +1,62 @@
+# RUN: yaml2obj %s -o %t
+# RUN: llvm-objcopy -R .text3 -O binary %t %t2
+# RUN: od -Ax -v -t x1 %t2 | FileCheck %s
+# RUN: wc -c %t2 | FileCheck %s -check-prefix=SIZE
+
+!ELF
+FileHeader:
+  Class:           ELFCLASS64
+  Data:            ELFDATA2LSB
+  Type:            ET_EXEC
+  Machine:         EM_X86_64
+Sections:
+  - Name:            .text
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    Address:         0x1000
+    AddressAlign:    0x1000
+    Content:         "c3c3c3c3"
+    Size:            0x1000
+  - Name:            .text2
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    Address:         0x2000
+    AddressAlign:    0x1000
+    Content:         "DEADBEEF"
+    Size:            0x1000
+  - Name:            .text3
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    Address:         0x3000
+    AddressAlign:    0x1000
+    Content:         "32323232"
+    Size:            0x1000
+  - Name:            .text4
+    Type:            SHT_PROGBITS
+    Flags:           [ SHF_ALLOC, SHF_EXECINSTR ]
+    Address:         0x4000
+    AddressAlign:    0x1000
+    Content:         "FFFFFFFF"
+    Size:            0x1000
+ProgramHeaders:
+  - Type: PT_LOAD
+    Flags: [ PF_R ]
+    VAddr: 0x1000
+    PAddr: 0x1000
+    Sections:
+      - Section: .text
+      - Section: .text2
+  - Type: PT_LOAD
+    Flags: [ PF_R ]
+    VAddr: 0x1000
+    PAddr: 0x1000
+    Sections:
+      - Section: .text3
+      - Section: .text4
+
+# CHECK: 000000 c3 c3 c3 c3
+# CHECK: 001000 de ad be ef
+# CHECK: 002000 00 00 00 00
+# CHECK: 003000 ff ff ff ff
+
+# SIZE: 16384
-- 
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