2017-11-30 04:46:13 +08:00
|
|
|
# RUN: yaml2obj < %s > %t.obj
|
[COFF] Implement /safeseh:no and check @feat.00 flags by default
Summary:
Fixes PR41828. Before this, LLD always emitted SafeSEH chunks and
defined __safe_se_handler_table & size. Now, /safeseh:no leaves those
undefined.
Additionally, we were checking for the safeseh @feat.00 flag in two
places: once to emit errors, and once during safeseh table construction.
The error was set up to be off by default, but safeseh is supposed to be
on by default. I combined the two checks, so now LLD emits an error if
an input object lacks @feat.00 and safeseh is enabled. This caused the
majority of 32-bit LLD tests to fail, since many test input object files
lack @feat.00 symbols. I explicitly added -safeseh:no to those tests to
preserve behavior.
Finally, LLD no longer sets IMAGE_DLL_CHARACTERISTICS_NO_SEH if any
input file wasn't compiled for safeseh.
Reviewers: mstorsjo, ruiu, thakis
Reviewed By: ruiu, thakis
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D63570
llvm-svn: 366238
2019-07-17 02:17:33 +08:00
|
|
|
# RUN: lld-link -safeseh:no /subsystem:console /out:%t.exe %t.obj
|
2017-11-30 04:46:13 +08:00
|
|
|
|
|
|
|
|
--- !COFF
|
|
|
|
|
header:
|
|
|
|
|
Machine: IMAGE_FILE_MACHINE_I386
|
|
|
|
|
Characteristics: []
|
|
|
|
|
sections:
|
|
|
|
|
- Name: .text
|
|
|
|
|
Characteristics: [ IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ ]
|
|
|
|
|
Alignment: 4
|
|
|
|
|
SectionData: B800000000506800000000680000000050E80000000050E800000000
|
|
|
|
|
- Name: .drectve
|
|
|
|
|
Characteristics: [ IMAGE_SCN_LNK_INFO, IMAGE_SCN_LNK_REMOVE ]
|
|
|
|
|
Alignment: 1
|
|
|
|
|
SectionData: 2f656e7472793a437573746f6d456e74727900 # /entry:CustomEntry
|
|
|
|
|
symbols:
|
|
|
|
|
- Name: _CustomEntry
|
|
|
|
|
Value: 0
|
|
|
|
|
SectionNumber: 1
|
|
|
|
|
SimpleType: IMAGE_SYM_TYPE_NULL
|
|
|
|
|
ComplexType: IMAGE_SYM_DTYPE_NULL
|
|
|
|
|
StorageClass: IMAGE_SYM_CLASS_EXTERNAL
|
|
|
|
|
...
|