llvm-project/compiler-rt
Kostya Kortchinsky 4b4db0057f [scudo] Overhaul malloc related interceptors
Summary:
This is a follow-up to D42506.

There are a few of things that bothered me about `scudo_interceptors.cpp`:
- the filename is a misnomer: it intercepts some functions, but the rest (C++)
  is actually in `scudo_new_delete.cpp`. I feel like `scudo_malloc.cpp` is more
  appropriate (ASan uses the same naming scheme);
- we do not need "full" interceptors, since we are never accessing the
  unsanitized version of the functions, we just need the
  `extern "C" INTERCEPTOR_ATTRIBUTE` part of it to just call our functions;
- a couple of functions where duplicated while they could just be `ALIAS`'d;
- use the `SANITIZER_INTERCEPT_*` defines to hide the unneeded interceptors;
- use `SIZE_T` instead of `uptr`: while it's the same behind the curtain,
  the former is meant for this use case.

In the end there is no functional change on the currently supported platforms
(Linux, Android).

Reviewers: alekseyshl

Reviewed By: alekseyshl

Subscribers: mgorny, hintonda, delcypher, #sanitizers, llvm-commits

Differential Revision: https://reviews.llvm.org/D42546

llvm-svn: 323464
2018-01-25 20:42:44 +00:00
..
cmake [sanitizer] Pass the CMake compiler to custom libc++ build 2018-01-21 03:22:22 +00:00
docs [sanitizers] Make it possible to XFAIL on the effective target, not just the default. 2016-08-09 11:50:53 +00:00
include [scudo] s/unsigned long/size_t/ for __scudo_set_rss_limit 2018-01-04 17:05:04 +00:00
lib [scudo] Overhaul malloc related interceptors 2018-01-25 20:42:44 +00:00
test Add a new interceptor: paccept(2) 2018-01-23 22:41:47 +00:00
unittests Allow compiler-rt test targets to work with multi-config CMake generators 2017-11-13 12:57:54 +00:00
www Update references to new lists.llvm.org mailing lists. 2015-08-05 03:58:00 +00:00
.arcconfig [compiler-rt] Set up .arcconfig to point to new Diffusion CRT repository 2017-12-06 20:55:32 +00:00
.gitignore Add .pyc files to .gitignore to compiler-rt 2017-07-24 21:51:12 +00:00
CMakeLists.txt [CMake] Support runtimes and monorepo layouts when looking for libcxx 2017-12-12 01:20:52 +00:00
CODE_OWNERS.TXT [sanitizers] remove earthdok@ from owners 2016-05-18 18:52:18 +00:00
CREDITS.TXT
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:38:50 +00:00
README.txt

README.txt

Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================