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llvm-project/lld/test/pass-stubs-basic.objtxt

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Sources now require C++11 to build. Add first linker pass (StubsPass) which looks for calls to shared library symbols and replaces them with calls to a StubAtom. On ELF system, a "stub" is a PLT entry. Added a simple test case. Pass a Platform object to YAML reader and writer for converting fixup kinds between names and values. Change output of Resolver to be a File object instead of a vector of Atoms. Thus, passes operate on a File instead of just Atoms. Rework how to walk through a File's Atoms. Now iterator based instead of a method that visits each atom. llvm-svn: 152269
2012-03-08 08:18:30 +08:00
# RUN: lld-core %s -stubs_pass | FileCheck %s
#
# Test that stubs pass adds stubs and rebinds call sites to the stub
#
---
atoms:
- name: foo
type: code
content: [ E8, 00, 00, 00, 00, E8, 00, 00, 00,
00, 48 ,8B, 05, 00, 00, 00, 00 ]
fixups:
- offset: 1
kind: call32
target: malloc
- offset: 6
kind: call32
target: free
- offset: 13
kind: gotLoad32
target: malloc
- name: malloc
definition: shared-library
load-name: libc.so
- name: free
definition: shared-library
load-name: libc.so
...
# CHECK: name: foo
# CHECK: fixups:
# CHECK: kind: call32
# CHECK: target: L
# CHECK: kind: call32
# CHECK: target: L
# CHECK: kind: gotLoad32
# CHECK: target: malloc
# CHECK: name: L
# CHECK: type: stub
# CHECK: name: L
# CHECK: type: stub
# CHECK: name: malloc
# CHECK: definition: shared-library
# CHECK: name: free
# CHECK: definition: shared-library
# CHECK: ...