diff options
| author | Bill Wendling <isanbard@gmail.com> | 2013-01-23 06:41:41 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2013-01-23 06:41:41 +0000 |
| commit | 114baee1fa017daefad2339c77b45b9ca3d79a41 (patch) | |
| tree | a8a1320a7ad94ac750fcca331a8db207f2fea637 /lib/AsmParser | |
| parent | 28d65722d6f283b327b5815914382077fe9c0ab4 (diff) | |
| download | llvm-114baee1fa017daefad2339c77b45b9ca3d79a41.tar.gz llvm-114baee1fa017daefad2339c77b45b9ca3d79a41.tar.bz2 llvm-114baee1fa017daefad2339c77b45b9ca3d79a41.tar.xz | |
Add the IR attribute 'sspstrong'.
SSPStrong applies a heuristic to insert stack protectors in these situations:
* A Protector is required for functions which contain an array, regardless of
type or length.
* A Protector is required for functions which contain a structure/union which
contains an array, regardless of type or length. Note, there is no limit to
the depth of nesting.
* A protector is required when the address of a local variable (i.e., stack
based variable) is exposed. (E.g., such as through a local whose address is
taken as part of the RHS of an assignment or a local whose address is taken as
part of a function argument.)
This patch implements the SSPString attribute to be equivalent to
SSPRequired. This will change in a subsequent patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173230 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/AsmParser')
| -rw-r--r-- | lib/AsmParser/LLLexer.cpp | 1 | ||||
| -rw-r--r-- | lib/AsmParser/LLParser.cpp | 11 | ||||
| -rw-r--r-- | lib/AsmParser/LLToken.h | 1 |
3 files changed, 8 insertions, 5 deletions
diff --git a/lib/AsmParser/LLLexer.cpp b/lib/AsmParser/LLLexer.cpp index 2efa1f01ca..85e7574c97 100644 --- a/lib/AsmParser/LLLexer.cpp +++ b/lib/AsmParser/LLLexer.cpp @@ -549,6 +549,7 @@ lltok::Kind LLLexer::LexIdentifier() { KEYWORD(optsize); KEYWORD(ssp); KEYWORD(sspreq); + KEYWORD(sspstrong); KEYWORD(noredzone); KEYWORD(noimplicitfloat); KEYWORD(naked); diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp index fea5ec84f9..0eb6023272 100644 --- a/lib/AsmParser/LLParser.cpp +++ b/lib/AsmParser/LLParser.cpp @@ -956,6 +956,7 @@ bool LLParser::ParseOptionalFuncAttrs(AttrBuilder &B) { case lltok::kw_returns_twice: B.addAttribute(Attribute::ReturnsTwice); break; case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break; case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break; + case lltok::kw_sspstrong: B.addAttribute(Attribute::StackProtectStrong); break; case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break; case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break; @@ -1050,11 +1051,11 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) { case lltok::kw_readonly: case lltok::kw_inlinehint: case lltok::kw_alwaysinline: case lltok::kw_optsize: case lltok::kw_ssp: case lltok::kw_sspreq: - case lltok::kw_noredzone: case lltok::kw_noimplicitfloat: - case lltok::kw_naked: case lltok::kw_nonlazybind: - case lltok::kw_address_safety: case lltok::kw_minsize: - case lltok::kw_alignstack: case lltok::kw_align: - case lltok::kw_noduplicate: + case lltok::kw_sspstrong: case lltok::kw_noimplicitfloat: + case lltok::kw_noredzone: case lltok::kw_naked: + case lltok::kw_nonlazybind: case lltok::kw_address_safety: + case lltok::kw_minsize: case lltok::kw_alignstack: + case lltok::kw_align: case lltok::kw_noduplicate: HaveError |= Error(Lex.getLoc(), "invalid use of function-only attribute"); break; } diff --git a/lib/AsmParser/LLToken.h b/lib/AsmParser/LLToken.h index 5b4d415d8e..fea5f75c48 100644 --- a/lib/AsmParser/LLToken.h +++ b/lib/AsmParser/LLToken.h @@ -110,6 +110,7 @@ namespace lltok { kw_optsize, kw_ssp, kw_sspreq, + kw_sspstrong, kw_noredzone, kw_noimplicitfloat, kw_naked, |