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usr / src / contrib / llvm-project / compiler-rt / lib / sanitizer_common /

📁 ..
📄 sancov_flags.cpp(1.64 KB)
📄 sancov_flags.h(1.08 KB)
📄 sancov_flags.inc(777 B)
📄 sanitizer_addrhashmap.h(9.19 KB)
📄 sanitizer_allocator.cpp(8.73 KB)
📄 sanitizer_allocator.h(2.69 KB)
📄 sanitizer_allocator_bytemap.h(3.12 KB)
📄 sanitizer_allocator_checks.cpp(686 B)
📄 sanitizer_allocator_checks.h(2.67 KB)
📄 sanitizer_allocator_combined.h(6.29 KB)
📄 sanitizer_allocator_interface.h(1.83 KB)
📄 sanitizer_allocator_internal.h(2.03 KB)
📄 sanitizer_allocator_local_cache.h(8.95 KB)
📄 sanitizer_allocator_primary32.h(12.64 KB)
📄 sanitizer_allocator_primary64.h(32.71 KB)
📄 sanitizer_allocator_report.cpp(4.68 KB)
📄 sanitizer_allocator_report.h(1.72 KB)
📄 sanitizer_allocator_secondary.h(10.78 KB)
📄 sanitizer_allocator_size_class_map.h(10.12 KB)
📄 sanitizer_allocator_stats.h(2.76 KB)
📄 sanitizer_asm.h(2.57 KB)
📄 sanitizer_atomic.h(1.97 KB)
📄 sanitizer_atomic_clang.h(3.42 KB)
📄 sanitizer_atomic_clang_mips.h(3.77 KB)
📄 sanitizer_atomic_clang_other.h(3.02 KB)
📄 sanitizer_atomic_clang_x86.h(3.77 KB)
📄 sanitizer_atomic_msvc.h(8.53 KB)
📄 sanitizer_bitvector.h(9.43 KB)
📄 sanitizer_bvgraph.h(4.62 KB)
📄 sanitizer_common.cpp(10.13 KB)
📄 sanitizer_common.h(30.64 KB)
📄 sanitizer_common_interceptors.inc(348.66 KB)
📄 sanitizer_common_interceptors_format.inc(16.84 KB)
📄 sanitizer_common_interceptors_ioctl.inc(22.13 KB)
📄 sanitizer_common_interceptors_netbsd_compat.inc(4.07 KB)
📄 sanitizer_common_interceptors_vfork_aarch64.inc.S(1.23 KB)
📄 sanitizer_common_interceptors_vfork_arm.inc.S(1.24 KB)
📄 sanitizer_common_interceptors_vfork_i386.inc.S(1.66 KB)
📄 sanitizer_common_interceptors_vfork_x86_64.inc.S(1.03 KB)
📄 sanitizer_common_interface.inc(2.05 KB)
📄 sanitizer_common_interface_posix.inc(732 B)
📄 sanitizer_common_libcdep.cpp(5.4 KB)
📄 sanitizer_common_nolibc.cpp(1.12 KB)
📄 sanitizer_common_syscalls.inc(85 KB)
📄 sanitizer_coverage_fuchsia.cpp(10.1 KB)
📄 sanitizer_coverage_interface.inc(1.73 KB)
📄 sanitizer_coverage_libcdep_new.cpp(7.39 KB)
📄 sanitizer_coverage_win_dll_thunk.cpp(1.03 KB)
📄 sanitizer_coverage_win_dynamic_runtime_thunk.cpp(1.16 KB)
📄 sanitizer_coverage_win_sections.cpp(3.36 KB)
📄 sanitizer_coverage_win_weak_interception.cpp(1.17 KB)
📄 sanitizer_dbghelp.h(1.44 KB)
📄 sanitizer_deadlock_detector.h(13.28 KB)
📄 sanitizer_deadlock_detector1.cpp(5.6 KB)
📄 sanitizer_deadlock_detector2.cpp(10.84 KB)
📄 sanitizer_deadlock_detector_interface.h(2.66 KB)
📄 sanitizer_errno.cpp(1.09 KB)
📄 sanitizer_errno.h(1.3 KB)
📄 sanitizer_errno_codes.h(1.1 KB)
📄 sanitizer_file.cpp(6.24 KB)
📄 sanitizer_file.h(3.67 KB)
📄 sanitizer_flag_parser.cpp(5.55 KB)
📄 sanitizer_flag_parser.h(5.71 KB)
📄 sanitizer_flags.cpp(3.95 KB)
📄 sanitizer_flags.h(2.13 KB)
📄 sanitizer_flags.inc(12.73 KB)
📄 sanitizer_freebsd.h(3.31 KB)
📄 sanitizer_fuchsia.cpp(16.58 KB)
📄 sanitizer_fuchsia.h(1.03 KB)
📄 sanitizer_getauxval.h(1.73 KB)
📄 sanitizer_glibc_version.h(748 B)
📄 sanitizer_hash.h(1.04 KB)
📄 sanitizer_interceptors_ioctl_netbsd.inc(68.81 KB)
📄 sanitizer_interface_internal.h(5.28 KB)
📄 sanitizer_internal_defs.h(14.28 KB)
📄 sanitizer_lfstack.h(2.08 KB)
📄 sanitizer_libc.cpp(7.21 KB)
📄 sanitizer_libc.h(3.23 KB)
📄 sanitizer_libignore.cpp(4.24 KB)
📄 sanitizer_libignore.h(3.5 KB)
📄 sanitizer_linux.cpp(71.58 KB)
📄 sanitizer_linux.h(5.47 KB)
📄 sanitizer_linux_libcdep.cpp(25.67 KB)
📄 sanitizer_linux_s390.cpp(6.91 KB)
📄 sanitizer_list.h(3.81 KB)
📄 sanitizer_local_address_space_view.h(3.67 KB)
📄 sanitizer_mac.cpp(38.67 KB)
📄 sanitizer_mac.h(2.49 KB)
📄 sanitizer_mac_libcdep.cpp(968 B)
📄 sanitizer_malloc_mac.inc(13.06 KB)
📄 sanitizer_mutex.h(5.17 KB)
📄 sanitizer_netbsd.cpp(9.95 KB)
📄 sanitizer_openbsd.cpp(3.17 KB)
📄 sanitizer_persistent_allocator.cpp(687 B)
📄 sanitizer_persistent_allocator.h(2.31 KB)
📄 sanitizer_placement_new.h(885 B)
📄 sanitizer_platform.h(10.11 KB)
📄 sanitizer_platform_interceptors.h(24.93 KB)
📄 sanitizer_platform_limits_freebsd.cpp(19.79 KB)
📄 sanitizer_platform_limits_freebsd.h(18.41 KB)
📄 sanitizer_platform_limits_linux.cpp(3.32 KB)
📄 sanitizer_platform_limits_netbsd.cpp(109.73 KB)
📄 sanitizer_platform_limits_netbsd.h(81.54 KB)
📄 sanitizer_platform_limits_openbsd.cpp(8.69 KB)
📄 sanitizer_platform_limits_openbsd.h(8.68 KB)
📄 sanitizer_platform_limits_posix.cpp(48.89 KB)
📄 sanitizer_platform_limits_posix.h(40.65 KB)
📄 sanitizer_platform_limits_solaris.cpp(11.93 KB)
📄 sanitizer_platform_limits_solaris.h(12.26 KB)
📄 sanitizer_posix.cpp(11.93 KB)
📄 sanitizer_posix.h(5.14 KB)
📄 sanitizer_posix_libcdep.cpp(16.21 KB)
📄 sanitizer_printf.cpp(12.07 KB)
📄 sanitizer_procmaps.h(2.93 KB)
📄 sanitizer_procmaps_bsd.cpp(3.81 KB)
📄 sanitizer_procmaps_common.cpp(5.27 KB)
📄 sanitizer_procmaps_fuchsia.cpp(2.51 KB)
📄 sanitizer_procmaps_linux.cpp(2.9 KB)
📄 sanitizer_procmaps_mac.cpp(13.7 KB)
📄 sanitizer_procmaps_solaris.cpp(2.18 KB)
📄 sanitizer_ptrauth.h(720 B)
📄 sanitizer_quarantine.h(9.57 KB)
📄 sanitizer_report_decorator.h(1.89 KB)
📄 sanitizer_ring_buffer.h(4.7 KB)
📄 sanitizer_rtems.cpp(7.61 KB)
📄 sanitizer_rtems.h(772 B)
📄 sanitizer_signal_interceptors.inc(2.89 KB)
📄 sanitizer_solaris.cpp(6.6 KB)
📄 sanitizer_stackdepot.cpp(4.54 KB)
📄 sanitizer_stackdepot.h(2.13 KB)
📄 sanitizer_stackdepotbase.h(5.58 KB)
📄 sanitizer_stacktrace.cpp(4.58 KB)
📄 sanitizer_stacktrace.h(5.65 KB)
📄 sanitizer_stacktrace_libcdep.cpp(5.54 KB)
📄 sanitizer_stacktrace_printer.cpp(9.08 KB)
📄 sanitizer_stacktrace_printer.h(3.08 KB)
📄 sanitizer_stacktrace_sparc.cpp(3.05 KB)
📄 sanitizer_stoptheworld.h(2.34 KB)
📄 sanitizer_stoptheworld_fuchsia.cpp(1.28 KB)
📄 sanitizer_stoptheworld_linux_libcdep.cpp(20.8 KB)
📄 sanitizer_stoptheworld_mac.cpp(5.29 KB)
📄 sanitizer_stoptheworld_netbsd_libcdep.cpp(11.02 KB)
📄 sanitizer_suppressions.cpp(5.67 KB)
📄 sanitizer_suppressions.h(1.69 KB)
📄 sanitizer_symbolizer.cpp(3.65 KB)
📄 sanitizer_symbolizer.h(6.62 KB)
📄 sanitizer_symbolizer_fuchsia.h(1.56 KB)
📄 sanitizer_symbolizer_internal.h(5.8 KB)
📄 sanitizer_symbolizer_libbacktrace.cpp(6.1 KB)
📄 sanitizer_symbolizer_libbacktrace.h(1.49 KB)
📄 sanitizer_symbolizer_libcdep.cpp(17.45 KB)
📄 sanitizer_symbolizer_mac.cpp(8.48 KB)
📄 sanitizer_symbolizer_mac.h(1.37 KB)
📄 sanitizer_symbolizer_markup.cpp(5.39 KB)
📄 sanitizer_symbolizer_posix_libcdep.cpp(16.5 KB)
📄 sanitizer_symbolizer_report.cpp(10.01 KB)
📄 sanitizer_symbolizer_rtems.h(1.56 KB)
📄 sanitizer_symbolizer_win.cpp(11.59 KB)
📄 sanitizer_syscall_generic.inc(1.06 KB)
📄 sanitizer_syscall_linux_aarch64.inc(4.58 KB)
📄 sanitizer_syscall_linux_arm.inc(4.58 KB)
📄 sanitizer_syscall_linux_x86_64.inc(3.07 KB)
📄 sanitizer_syscalls_netbsd.inc(120.97 KB)
📄 sanitizer_termination.cpp(2.86 KB)
📄 sanitizer_thread_registry.cpp(10.31 KB)
📄 sanitizer_thread_registry.h(5.44 KB)
📄 sanitizer_tls_get_addr.cpp(5.29 KB)
📄 sanitizer_tls_get_addr.h(2.21 KB)
📄 sanitizer_type_traits.cpp(708 B)
📄 sanitizer_type_traits.h(1.49 KB)
📄 sanitizer_unwind_linux_libcdep.cpp(6.13 KB)
📄 sanitizer_unwind_win.cpp(2.41 KB)
📄 sanitizer_vector.h(2.57 KB)
📄 sanitizer_win.cpp(33.3 KB)
📄 sanitizer_win.h(851 B)
📄 sanitizer_win_defs.h(7.23 KB)
📄 sanitizer_win_dll_thunk.cpp(3.41 KB)
📄 sanitizer_win_dll_thunk.h(11.13 KB)
📄 sanitizer_win_dynamic_runtime_thunk.cpp(1.16 KB)
📄 sanitizer_win_weak_interception.cpp(3.49 KB)
📄 sanitizer_win_weak_interception.h(1.64 KB)
📁 symbolizer
📄 weak_symbols.txt(230 B)

Editing: sanitizer_win_defs.h

//===-- sanitizer_win_defs.h ------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Common definitions for Windows-specific code.
//
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_WIN_DEFS_H
#define SANITIZER_WIN_DEFS_H

#include "sanitizer_platform.h"
#if SANITIZER_WINDOWS

#ifndef WINAPI
#if defined(_M_IX86) || defined(__i386__)
#define WINAPI __stdcall
#else
#define WINAPI
#endif
#endif

#if defined(_M_IX86) || defined(__i386__)
#define WIN_SYM_PREFIX "_"
#else
#define WIN_SYM_PREFIX
#endif

// For MinGW, the /export: directives contain undecorated symbols, contrary to
// link/lld-link. The GNU linker doesn't support /alternatename and /include
// though, thus lld-link in MinGW mode interprets them in the same way as
// in the default mode.
#ifdef __MINGW32__
#define WIN_EXPORT_PREFIX
#else
#define WIN_EXPORT_PREFIX WIN_SYM_PREFIX
#endif

// Intermediate macro to ensure the parameter is expanded before stringified.
#define STRINGIFY_(A) #A
#define STRINGIFY(A) STRINGIFY_(A)

#if !SANITIZER_GO

// ----------------- A workaround for the absence of weak symbols --------------
// We don't have a direct equivalent of weak symbols when using MSVC, but we can
// use the /alternatename directive to tell the linker to default a specific
// symbol to a specific value.
// Take into account that this is a pragma directive for the linker, so it will
// be ignored by the compiler and the function will be marked as UNDEF in the
// symbol table of the resulting object file. The linker won't find the default
// implementation until it links with that object file.
// So, suppose we provide a default implementation "fundef" for "fun", and this
// is compiled into the object file "test.obj" including the pragma directive.
// If we have some code with references to "fun" and we link that code with
// "test.obj", it will work because the linker always link object files.
// But, if "test.obj" is included in a static library, like "test.lib", then the
// liker will only link to "test.obj" if necessary. If we only included the
// definition of "fun", it won't link to "test.obj" (from test.lib) because
// "fun" appears as UNDEF, so it doesn't resolve the symbol "fun", and will
// result in a link error (the linker doesn't find the pragma directive).
// So, a workaround is to force linkage with the modules that include weak
// definitions, with the following macro: WIN_FORCE_LINK()

#define WIN_WEAK_ALIAS(Name, Default)                                          \
  __pragma(comment(linker, "/alternatename:" WIN_SYM_PREFIX STRINGIFY(Name) "="\
                                             WIN_SYM_PREFIX STRINGIFY(Default)))

#define WIN_FORCE_LINK(Name)                                                   \
  __pragma(comment(linker, "/include:" WIN_SYM_PREFIX STRINGIFY(Name)))

#define WIN_EXPORT(ExportedName, Name)                                         \
  __pragma(comment(linker, "/export:" WIN_EXPORT_PREFIX STRINGIFY(ExportedName)\
                                  "=" WIN_EXPORT_PREFIX STRINGIFY(Name)))

// We cannot define weak functions on Windows, but we can use WIN_WEAK_ALIAS()
// which defines an alias to a default implementation, and only works when
// linking statically.
// So, to define a weak function "fun", we define a default implementation with
// a different name "fun__def" and we create a "weak alias" fun = fun__def.
// Then, users can override it just defining "fun".
// We impose "extern "C"" because otherwise WIN_WEAK_ALIAS() will fail because
// of name mangling.

// Dummy name for default implementation of weak function.
# define WEAK_DEFAULT_NAME(Name) Name##__def
// Name for exported implementation of weak function.
# define WEAK_EXPORT_NAME(Name) Name##__dll

// Use this macro when you need to define and export a weak function from a
// library. For example:
//   WIN_WEAK_EXPORT_DEF(bool, compare, int a, int b) { return a > b; }
# define WIN_WEAK_EXPORT_DEF(ReturnType, Name, ...)                            \
  WIN_WEAK_ALIAS(Name, WEAK_DEFAULT_NAME(Name))                                \
  WIN_EXPORT(WEAK_EXPORT_NAME(Name), Name)                                     \
  extern "C" ReturnType Name(__VA_ARGS__);                                     \
  extern "C" ReturnType WEAK_DEFAULT_NAME(Name)(__VA_ARGS__)

// Use this macro when you need to import a weak function from a library. It
// defines a weak alias to the imported function from the dll. For example:
//   WIN_WEAK_IMPORT_DEF(compare)
# define WIN_WEAK_IMPORT_DEF(Name)                                             \
  WIN_WEAK_ALIAS(Name, WEAK_EXPORT_NAME(Name))

// So, for Windows we provide something similar to weak symbols in Linux, with
// some differences:
// + A default implementation must always be provided.
//
// + When linking statically it works quite similarly. For example:
//
//   // libExample.cc
//   WIN_WEAK_EXPORT_DEF(bool, compare, int a, int b) { return a > b; }
//
//   // client.cc
//   // We can use the default implementation from the library:
//   compare(1, 2);
//   // Or we can override it:
//   extern "C" bool compare (int a, int b) { return a >= b; }
//
//  And it will work fine. If we don't override the function, we need to ensure
//  that the linker includes the object file with the default implementation.
//  We can do so with the linker option "-wholearchive:".
//
// + When linking dynamically with a library (dll), weak functions are exported
//  with "__dll" suffix. Clients can use the macro WIN_WEAK_IMPORT_DEF(fun)
//  which defines a "weak alias" fun = fun__dll.
//
//   // libExample.cc
//   WIN_WEAK_EXPORT_DEF(bool, compare, int a, int b) { return a > b; }
//
//   // client.cc
//   WIN_WEAK_IMPORT_DEF(compare)
//   // We can use the default implementation from the library:
//   compare(1, 2);
//   // Or we can override it:
//   extern "C" bool compare (int a, int b) { return a >= b; }
//
//  But if we override the function, the dlls don't have access to it (which
//  is different in linux). If that is desired, the strong definition must be
//  exported and interception can be used from the rest of the dlls.
//
//   // libExample.cc
//   WIN_WEAK_EXPORT_DEF(bool, compare, int a, int b) { return a > b; }
//   // When initialized, check if the main executable defined "compare".
//   int libExample_init() {
//     uptr fnptr = __interception::InternalGetProcAddress(
//         (void *)GetModuleHandleA(0), "compare");
//     if (fnptr && !__interception::OverrideFunction((uptr)compare, fnptr, 0))
//       abort();
//     return 0;
//   }
//
//   // client.cc
//   WIN_WEAK_IMPORT_DEF(compare)
//   // We override and export compare:
//   extern "C" __declspec(dllexport) bool compare (int a, int b) {
//     return a >= b;
//   }
//

#else // SANITIZER_GO

// Go neither needs nor wants weak references.
// The shenanigans above don't work for gcc.
# define WIN_WEAK_EXPORT_DEF(ReturnType, Name, ...)                            \
  extern "C" ReturnType Name(__VA_ARGS__)

#endif // SANITIZER_GO

#endif // SANITIZER_WINDOWS
#endif // SANITIZER_WIN_DEFS_H

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Editing: sanitizer_win_defs.h

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