1 Test plain passthrough copying with llvm-objcopy, by checking that obj2yaml
2 produces identical output for both input and output object files/executables.
3 (Intentionally not comparing to the original input yaml, in case there are
4 superficial differences like line endings.) In order to have a check of the
5 whole file and not just individual fields with FileCheck, checking with
6 obj2yaml+cmp instead of llvm-readobj+cmp, as llvm-readobj also prints file
7 details that can differ between otherwise equal files (such as file offsets).
9 Actual copied object files/executables can differ in, among others, the
11 - The padding of executable sections (lld uses 0xcc, which is int3 on x86)
12 - The actual layout of the string table (it can be filled linearly,
13 strings can be dedupliated, the table can be optimized by sharing tails
14 of longer strings; different parts in llvm do each of these three options)
15 - The size indication for an empty/missing string table can either be 4
16 or left out altogether
17 - Alignment of section data
20 RUN: yaml2obj %p/Inputs/i386-obj.yaml > %t.i386.o
21 RUN: llvm-objcopy %t.i386.o %t.i386-copy.o
22 RUN: obj2yaml %t.i386.o > %t.i386.o.yaml
23 RUN: obj2yaml %t.i386-copy.o > %t.i386-copy.o.yaml
24 RUN: cmp %t.i386.o.yaml %t.i386-copy.o.yaml
26 RUN: yaml2obj %p/Inputs/x86_64-obj.yaml > %t.x86_64.o
27 RUN: llvm-objcopy %t.x86_64.o %t.x86_64-copy.o
28 RUN: obj2yaml %t.x86_64.o > %t.x86_64.o.yaml
29 RUN: obj2yaml %t.x86_64-copy.o > %t.x86_64-copy.o.yaml
30 RUN: cmp %t.x86_64.o.yaml %t.x86_64-copy.o.yaml
32 RUN: yaml2obj %p/Inputs/i386-exe.yaml > %t.i386.exe
33 RUN: llvm-objcopy %t.i386.exe %t.i386-copy.exe
34 RUN: obj2yaml %t.i386.exe > %t.i386.exe.yaml
35 RUN: obj2yaml %t.i386-copy.exe > %t.i386-copy.exe.yaml
36 RUN: cmp %t.i386.exe.yaml %t.i386-copy.exe.yaml
38 RUN: yaml2obj %p/Inputs/x86_64-exe.yaml > %t.x86_64.exe
39 RUN: llvm-objcopy %t.x86_64.exe %t.x86_64-copy.exe
40 RUN: obj2yaml %t.x86_64.exe > %t.x86_64.exe.yaml
41 RUN: obj2yaml %t.x86_64-copy.exe > %t.x86_64-copy.exe.yaml
42 RUN: cmp %t.x86_64.exe.yaml %t.x86_64-copy.exe.yaml
44 RUN: yaml2obj %p/Inputs/no-symbols.yaml > %t.no-symbols.o
45 RUN: llvm-objcopy %t.no-symbols.o %t.no-symbols-copy.o
46 RUN: obj2yaml %t.no-symbols.o > %t.no-symbols.o.yaml
47 RUN: obj2yaml %t.no-symbols-copy.o > %t.no-symbols-copy.o.yaml
48 RUN: cmp %t.no-symbols.o.yaml %t.no-symbols-copy.o.yaml