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| author | Andrew Paverd <andrew.paverd@microsoft.com> | 2019-10-28 13:22:19 +0000 |
|---|---|---|
| committer | David Chisnall <David.Chisnall@microsoft.com> | 2019-10-28 15:19:39 +0000 |
| commit | d157a9bc8ba1085cc4808c6941412322a7fd884e (patch) | |
| tree | c675a8e26a4bf08d0cd8abcde693780dd5bd3859 /clang/test/Driver/cl-fallback.c | |
| parent | a233e7d7cb642ada49985426c23aa3c6a4c98690 (diff) | |
| download | bcm5719-llvm-d157a9bc8ba1085cc4808c6941412322a7fd884e.tar.gz bcm5719-llvm-d157a9bc8ba1085cc4808c6941412322a7fd884e.zip | |
Add Windows Control Flow Guard checks (/guard:cf).
Summary:
A new function pass (Transforms/CFGuard/CFGuard.cpp) inserts CFGuard checks on
indirect function calls, using either the check mechanism (X86, ARM, AArch64) or
or the dispatch mechanism (X86-64). The check mechanism requires a new calling
convention for the supported targets. The dispatch mechanism adds the target as
an operand bundle, which is processed by SelectionDAG. Another pass
(CodeGen/CFGuardLongjmp.cpp) identifies and emits valid longjmp targets, as
required by /guard:cf. This feature is enabled using the `cfguard` CC1 option.
Reviewers: thakis, rnk, theraven, pcc
Subscribers: ychen, hans, metalcanine, dmajor, tomrittervg, alex, mehdi_amini, mgorny, javed.absar, kristof.beyls, hiraditya, steven_wu, dexonsmith, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D65761
Diffstat (limited to 'clang/test/Driver/cl-fallback.c')
| -rw-r--r-- | clang/test/Driver/cl-fallback.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/clang/test/Driver/cl-fallback.c b/clang/test/Driver/cl-fallback.c index 2e5698ce9f9..a840883255f 100644 --- a/clang/test/Driver/cl-fallback.c +++ b/clang/test/Driver/cl-fallback.c @@ -2,7 +2,7 @@ // command-line option, e.g. on Mac where %s is commonly under /Users. // RUN: %clang_cl --target=i686-pc-win32 /fallback /Dfoo=bar /Ubaz /Ifoo /O0 /Ox /GR /GR- /GS /GS- /Gy /Gy- \ -// RUN: /Gw /Gw- /LD /LDd /EHs /EHs- /Zl /MD /MDd /MTd /MT /FImyheader.h /Zi \ +// RUN: /Gw /Gw- /LD /LDd /EHs /EHs- /Zl /MD /MDd /MTd /MT /guard:cf /guard:cf- /FImyheader.h /Zi \ // RUN: -garbage -moregarbage \ // RUN: -### -- %s 2>&1 \ // RUN: | FileCheck %s @@ -33,6 +33,7 @@ // CHECK: "/EHs-" // CHECK: "/Zl" // CHECK: "/MT" +// CHECK: "/guard:cf-" // CHECK: "-garbage" // CHECK: "-moregarbage" // CHECK: "/Tc" "{{.*cl-fallback.c}}" |
