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16 Commits

Author SHA1 Message Date
Evgeniy Stepanov b0c887762a Stricter checks in the stack-protector codegen test. 
llvm-svn: 266095
 2016-04-12 17:51:59 +00:00
Evgeniy Stepanov 368d3074ba Allow simultaneous safestack and stackprotector attributes. 
This is the clang part of http://reviews.llvm.org/D18846.
SafeStack instrumentation pass adds stack protector canaries if both
attributes are present on a function. StackProtector pass will step
back if the function has a safestack attribute.

llvm-svn: 266005
 2016-04-11 22:27:55 +00:00
David Blaikie ea3e51d73f Account for calling convention specifiers in function definitions in IR test cases 
Several tests wouldn't pass when executed on an armv7a_pc_linux triple
due to the non-default arm_aapcs calling convention produced on the
function definitions in the IR output. Account for this with the
application of a little regex.

Patch by Ying Yi.

llvm-svn: 240971
 2015-06-29 17:29:50 +00:00
Peter Collingbourne c4122c17b4 Protection against stack-based memory corruption errors using SafeStack: Clang command line option and function attribute 
This patch adds the -fsanitize=safe-stack command line argument for clang,
which enables the Safe Stack protection (see http://reviews.llvm.org/D6094
for the detailed description of the Safe Stack).

This patch is our implementation of the safe stack on top of Clang. The
patches make the following changes:

- Add -fsanitize=safe-stack and -fno-sanitize=safe-stack options to clang
  to control safe stack usage (the safe stack is disabled by default).

- Add __attribute__((no_sanitize("safe-stack"))) attribute to clang that can be
  used to disable the safe stack for individual functions even when enabled
  globally.

Original patch by Volodymyr Kuznetsov and others at the Dependable Systems
Lab at EPFL; updates and upstreaming by myself.

Differential Revision: http://reviews.llvm.org/D6095

llvm-svn: 239762
 2015-06-15 21:08:13 +00:00
Josh Magee e0fc1a80cb [stackprotector] Add command line option -fstack-protector-strong 
This option has the following effects:
 * It adds the sspstrong IR attribute to each function within the CU.
 * It defines the macro __SSP_STRONG__ with the value of 2.

Differential Revision: http://llvm-reviews.chandlerc.com/D2717

llvm-svn: 201120
 2014-02-11 01:35:14 +00:00
Bill Wendling 4467d79ad4 Attempt to clean up tests for non-X86 platforms. 
llvm-svn: 175652
 2013-02-20 19:30:01 +00:00
Bill Wendling c33fc4c004 Modify the tests to use attribute group references instead of listing the 
function attributes.

llvm-svn: 175606
 2013-02-20 07:22:19 +00:00
Dmitri Gribenko b633eab8cb Fix for ARM: functions don't have extra attributes there, so {{.*}} is "" 
While there, explicitly declare functions to remove warnings.

llvm-svn: 175384
 2013-02-17 03:06:16 +00:00
Bill Wendling 985d1c5d15 Add the 'target-cpu' and 'target-features' attributes to functions. 
The back-end will use these values to reconfigure code generation for different
features.

llvm-svn: 175308
 2013-02-15 21:30:01 +00:00
Daniel Dunbar 8fbe78f6fc Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 
- This is designed to make it obvious that %clang_cc1 is a "test variable"
   which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it
   can be useful to redefine what gets run as 'clang -cc1' (for example, to set
   a default target).

llvm-svn: 91446
 2009-12-15 20:14:24 +00:00
Daniel Dunbar e97582406b Use '-FOO' 'BAR' instead of '-FOO=BAR' for FOO in -stack-protector, -fvisibility, and -fconstant-string-class. 
llvm-svn: 90072
 2009-11-29 09:33:20 +00:00
Daniel Dunbar 4930e3357b Add -fblocks, -stack-protector, and -fobjc-nonfragile-abi defaulting to driver, 
instead of using getDefaultLangOptions.
 - Remove unused -fobjc-tight-layout while at it.

llvm-svn: 89065
 2009-11-17 08:07:36 +00:00
Daniel Dunbar 34546ce43d Remove RUN: true lines. 
llvm-svn: 86432
 2009-11-08 01:47:25 +00:00
Daniel Dunbar 8b57697954 Eliminate &&s in tests. 
- 'for i in $(find . -type f); do sed -e 's#\(RUN:.*[^ ]\) *&& *$#\1#g' $i | FileUpdate $i; done', for the curious.

llvm-svn: 86430
 2009-11-08 01:45:36 +00:00
Mike Stump f8c1f0d1f0 Speed up testing by avoiding stdio.h, also helps testing on windows. 
Patch by John Thompson.

llvm-svn: 83593
 2009-10-08 23:05:06 +00:00
Bill Wendling d63bbadbef Add stack protector support to clang. This generates the 'ssp' and 'sspreq' 
function attributes. There are predefined macros that are defined when stack
protectors are used: __SSP__=1 with -fstack-protector and __SSP_ALL__=2 with
-fstack-protector-all.

llvm-svn: 74405
 2009-06-28 07:36:13 +00:00