2018-08-30 06:23:34 +08:00
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//===-- hwasan_interface_internal.h -----------------------------*- C++ -*-===//
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2017-12-09 09:31:51 +08:00
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of HWAddressSanitizer.
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//
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// Private Hwasan interface header.
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//===----------------------------------------------------------------------===//
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#ifndef HWASAN_INTERFACE_INTERNAL_H
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#define HWASAN_INTERFACE_INTERNAL_H
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#include "sanitizer_common/sanitizer_internal_defs.h"
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extern "C" {
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2018-04-24 02:19:23 +08:00
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2018-08-14 03:57:11 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_shadow_init();
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2017-12-09 09:31:51 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_init();
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using __sanitizer::uptr;
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using __sanitizer::sptr;
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using __sanitizer::uu64;
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using __sanitizer::uu32;
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using __sanitizer::uu16;
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using __sanitizer::u64;
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using __sanitizer::u32;
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using __sanitizer::u16;
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using __sanitizer::u8;
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2018-04-24 02:19:23 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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extern uptr __hwasan_shadow_memory_dynamic_address;
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2017-12-09 09:31:51 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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2018-04-19 06:05:18 +08:00
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void __hwasan_loadN(uptr, uptr);
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2017-12-09 09:31:51 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load1(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load2(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load4(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load8(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load16(uptr);
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2017-12-21 03:05:44 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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2018-04-19 06:05:18 +08:00
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void __hwasan_loadN_noabort(uptr, uptr);
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2017-12-21 03:05:44 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load1_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load2_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load4_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load8_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_load16_noabort(uptr);
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2017-12-09 09:31:51 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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2018-04-19 06:05:18 +08:00
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void __hwasan_storeN(uptr, uptr);
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2017-12-09 09:31:51 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store1(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store2(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store4(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store8(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store16(uptr);
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2017-12-21 03:05:44 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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2018-04-19 06:05:18 +08:00
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void __hwasan_storeN_noabort(uptr, uptr);
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2017-12-21 03:05:44 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store1_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store2_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store4_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store8_noabort(uptr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_store16_noabort(uptr);
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2018-01-12 06:53:30 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_tag_memory(uptr p, u8 tag, uptr sz);
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2018-08-15 08:39:35 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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uptr __hwasan_tag_pointer(uptr p, u8 tag);
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2018-01-13 09:32:15 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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u8 __hwasan_generate_tag();
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2017-12-09 09:31:51 +08:00
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// Returns the offset of the first tag mismatch or -1 if the whole range is
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// good.
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SANITIZER_INTERFACE_ATTRIBUTE
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sptr __hwasan_test_shadow(const void *x, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE SANITIZER_WEAK_ATTRIBUTE
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/* OPTIONAL */ const char* __hwasan_default_options();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_print_shadow(const void *x, uptr size);
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2018-08-17 07:17:14 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_handle_longjmp(const void *sp_dst);
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2017-12-09 09:31:51 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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u16 __sanitizer_unaligned_load16(const uu16 *p);
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SANITIZER_INTERFACE_ATTRIBUTE
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u32 __sanitizer_unaligned_load32(const uu32 *p);
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SANITIZER_INTERFACE_ATTRIBUTE
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u64 __sanitizer_unaligned_load64(const uu64 *p);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_unaligned_store16(uu16 *p, u16 x);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_unaligned_store32(uu32 *p, u32 x);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __sanitizer_unaligned_store64(uu64 *p, u64 x);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_enable_allocator_tagging();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_disable_allocator_tagging();
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[hwasan] Add a (almost) no-interceptor mode.
Summary:
The idea behind this change is to allow sanitization of libc. We are prototyping on Bionic,
but the tool interface will be general enough (or at least generalizable) to support any other libc.
When libc depends on libclang_rt.hwasan, the latter can not interpose libc functions.
In fact, majority of interceptors become unnecessary when libc code is instrumented.
This change gets rid of most hwasan interceptors and provides interface for libc to notify
hwasan about thread creation and destruction events. Some interceptors (pthread_create)
are kept under #ifdef to enable testing with uninstrumented libc. They are expressed in
terms of the new libc interface.
The new cmake switch, COMPILER_RT_HWASAN_WITH_INTERCEPTORS, ON by default, builds testing
version of the library with the aforementioned pthread_create interceptor.
With the OFF setting, the library becomes more of a libc plugin.
Reviewers: vitalybuka, kcc, jfb
Subscribers: srhines, kubamracek, mgorny, jfb, llvm-commits
Differential Revision: https://reviews.llvm.org/D50922
llvm-svn: 340216
2018-08-21 05:49:15 +08:00
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_thread_enter();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __hwasan_thread_exit();
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2017-12-09 09:31:51 +08:00
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} // extern "C"
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#endif // HWASAN_INTERFACE_INTERNAL_H
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