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Erik Pilkington b6e16ea006 [Sema] Add some compile time _FORTIFY_SOURCE diagnostics 
These diagnose overflowing calls to subset of fortifiable functions. Some
functions, like sprintf or strcpy aren't supported right not, but we should
probably support these in the future. We previously supported this kind of
functionality with -Wbuiltin-memcpy-chk-size, but that diagnostic doesn't work
with _FORTIFY implementations that use wrapper functions. Also unlike that
diagnostic, we emit these warnings regardless of whether _FORTIFY_SOURCE is
actually enabled, which is nice for programs that don't enable the runtime
checks.

Why not just use diagnose_if, like Bionic does? We can get better diagnostics in
the compiler (i.e. mention the sizes), and we have the potential to diagnose
sprintf and strcpy which is impossible with diagnose_if (at least, in languages
that don't support C++14 constexpr). This approach also saves standard libraries
from having to add diagnose_if.

rdar://48006655

Differential revision: https://reviews.llvm.org/D58797

llvm-svn: 356397
 		2019-03-18 19:23:45 +00:00
clang [Sema] Add some compile time _FORTIFY_SOURCE diagnostics 2019-03-18 19:23:45 +00:00
clang-tools-extra [pp-trace] Delete -ignore and add a new option -callbacks 2019-03-18 13:30:17 +00:00
compiler-rt [TSan][libdispatch] Configure libdispatch lit tests 2019-03-16 02:07:50 +00:00
debuginfo-tests Set config.lit_tools_dir, which is needed by lit.llvm.initialize. 2018-11-06 21:54:27 +00:00
libclc sincos: Simplify declaration headers. 2019-03-13 07:13:34 +00:00
libcxx [libc++][NFC] Promote CMake comment to an actual option description 2019-03-18 18:18:01 +00:00
libcxxabi Revert "[runtimes] Move libunwind, libc++abi and libc++ to lib/ and include/" 2019-03-08 20:33:55 +00:00
libunwind Revert "[runtimes] Move libunwind, libc++abi and libc++ to lib/ and include/" 2019-03-08 20:33:55 +00:00
lld [DebugInfo][PDB] Don't write empty debug streams 2019-03-18 19:13:23 +00:00
lldb Skip TestVSCode_setFunctionBreakpoints on linux 2019-03-18 16:04:53 +00:00
llgo Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
llvm Revert r356304: remove subreg parameter from MachineIRBuilder::buildCopy() 2019-03-18 19:20:10 +00:00
openmp [OpenMP] Fix OMPT cancellation test for GOMP 2019-03-15 21:24:45 +00:00
parallel-libs Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +00:00
polly [opaque pointer types] Update calls to CreateCall to pass the function 2019-02-08 19:30:46 +00:00
pstl [pstl] By default, disable the parallel policies 2019-03-14 19:33:58 +00:00
.arcconfig Update monorepo .arcconfig with new project callsign. 2019-01-31 14:34:59 +00:00
.clang-format Add .clang-tidy and .clang-format files to the toplevel of the 2019-01-29 16:43:16 +00:00
.clang-tidy Disable tidy checks with too many hits 2019-02-01 11:20:13 +00:00
README.md
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README.md

The LLVM Compiler Infrastructure

This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments.