diff options
Diffstat (limited to 'lib/clang/11.0.0/include/sanitizer/common_interface_defs.h')
| -rw-r--r-- | lib/clang/11.0.0/include/sanitizer/common_interface_defs.h | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/lib/clang/11.0.0/include/sanitizer/common_interface_defs.h b/lib/clang/11.0.0/include/sanitizer/common_interface_defs.h deleted file mode 100644 index f979c6a..0000000 --- a/lib/clang/11.0.0/include/sanitizer/common_interface_defs.h +++ /dev/null @@ -1,354 +0,0 @@ -//===-- sanitizer/common_interface_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 part of the public sanitizer interface. -//===----------------------------------------------------------------------===// - -#ifndef SANITIZER_COMMON_INTERFACE_DEFS_H -#define SANITIZER_COMMON_INTERFACE_DEFS_H - -#include <stddef.h> -#include <stdint.h> - -// GCC does not understand __has_feature. -#if !defined(__has_feature) -#define __has_feature(x) 0 -#endif - -#ifdef __cplusplus -extern "C" { -#endif -// Arguments for __sanitizer_sandbox_on_notify() below. -typedef struct { - // Enable sandbox support in sanitizer coverage. - int coverage_sandboxed; - // File descriptor to write coverage data to. If -1 is passed, a file will - // be pre-opened by __sanitizer_sandobx_on_notify(). This field has no - // effect if coverage_sandboxed == 0. - intptr_t coverage_fd; - // If non-zero, split the coverage data into well-formed blocks. This is - // useful when coverage_fd is a socket descriptor. Each block will contain - // a header, allowing data from multiple processes to be sent over the same - // socket. - unsigned int coverage_max_block_size; -} __sanitizer_sandbox_arguments; - -// Tell the tools to write their reports to "path.<pid>" instead of stderr. -void __sanitizer_set_report_path(const char *path); -// Tell the tools to write their reports to the provided file descriptor -// (casted to void *). -void __sanitizer_set_report_fd(void *fd); - -// Notify the tools that the sandbox is going to be turned on. The reserved -// parameter will be used in the future to hold a structure with functions -// that the tools may call to bypass the sandbox. -void __sanitizer_sandbox_on_notify(__sanitizer_sandbox_arguments *args); - -// This function is called by the tool when it has just finished reporting -// an error. 'error_summary' is a one-line string that summarizes -// the error message. This function can be overridden by the client. -void __sanitizer_report_error_summary(const char *error_summary); - -// Some of the sanitizers (for example ASan/TSan) could miss bugs that happen -// in unaligned loads/stores. To find such bugs reliably, you need to replace -// plain unaligned loads/stores with these calls. - -/// Loads a 16-bit unaligned value. -/// -/// \param p Pointer to unaligned memory. -/// -/// \returns Loaded value. -uint16_t __sanitizer_unaligned_load16(const void *p); - -/// Loads a 32-bit unaligned value. -/// -/// \param p Pointer to unaligned memory. -/// -/// \returns Loaded value. -uint32_t __sanitizer_unaligned_load32(const void *p); - -/// Loads a 64-bit unaligned value. -/// -/// \param p Pointer to unaligned memory. -/// -/// \returns Loaded value. -uint64_t __sanitizer_unaligned_load64(const void *p); - -/// Stores a 16-bit unaligned value. -/// -/// \param p Pointer to unaligned memory. -/// \param x 16-bit value to store. -void __sanitizer_unaligned_store16(void *p, uint16_t x); - -/// Stores a 32-bit unaligned value. -/// -/// \param p Pointer to unaligned memory. -/// \param x 32-bit value to store. -void __sanitizer_unaligned_store32(void *p, uint32_t x); - -/// Stores a 64-bit unaligned value. -/// -/// \param p Pointer to unaligned memory. -/// \param x 64-bit value to store. -void __sanitizer_unaligned_store64(void *p, uint64_t x); - -// Returns 1 on the first call, then returns 0 thereafter. Called by the tool -// to ensure only one report is printed when multiple errors occur -// simultaneously. -int __sanitizer_acquire_crash_state(); - -/// Annotates the current state of a contiguous container, such as -/// <c>std::vector</c>, <c>std::string</c>, or similar. -/// -/// A contiguous container is a container that keeps all of its elements -/// in a contiguous region of memory. The container owns the region of memory -/// <c>[beg, end)</c>; the memory <c>[beg, mid)</c> is used to store the -/// current elements, and the memory <c>[mid, end)</c> is reserved for future -/// elements (<c>beg <= mid <= end</c>). For example, in -/// <c>std::vector<> v</c>: -/// -/// \code -/// beg = &v[0]; -/// end = beg + v.capacity() * sizeof(v[0]); -/// mid = beg + v.size() * sizeof(v[0]); -/// \endcode -/// -/// This annotation tells the Sanitizer tool about the current state of the -/// container so that the tool can report errors when memory from -/// <c>[mid, end)</c> is accessed. Insert this annotation into methods like -/// <c>push_back()</c> or <c>pop_back()</c>. Supply the old and new values of -/// <c>mid</c>(<c><i>old_mid</i></c> and <c><i>new_mid</i></c>). In the initial -/// state <c>mid == end</c>, so that should be the final state when the -/// container is destroyed or when the container reallocates the storage. -/// -/// For ASan, <c><i>beg</i></c> should be 8-aligned and <c><i>end</i></c> -/// should be either 8-aligned or it should point to the end of a separate -/// heap-, stack-, or global-allocated buffer. So the following example will -/// not work: -/// -/// \code -/// int64_t x[2]; // 16 bytes, 8-aligned -/// char *beg = (char *)&x[0]; -/// char *end = beg + 12; // Not 8-aligned, not the end of the buffer -/// \endcode -/// -/// The following, however, will work: -/// \code -/// int32_t x[3]; // 12 bytes, but 8-aligned under ASan. -/// char *beg = (char*)&x[0]; -/// char *end = beg + 12; // Not 8-aligned, but is the end of the buffer -/// \endcode -/// -/// \note Use this function with caution and do not use for anything other -/// than vector-like classes. -/// -/// \param beg Beginning of memory region. -/// \param end End of memory region. -/// \param old_mid Old middle of memory region. -/// \param new_mid New middle of memory region. -void __sanitizer_annotate_contiguous_container(const void *beg, - const void *end, - const void *old_mid, - const void *new_mid); - -/// Returns true if the contiguous container <c>[beg, end)</c> is properly -/// poisoned. -/// -/// Proper poisoning could occur, for example, with -/// <c>__sanitizer_annotate_contiguous_container</c>), that is, if -/// <c>[beg, mid)</c> is addressable and <c>[mid, end)</c> is unaddressable. -/// Full verification requires O (<c>end - beg</c>) time; this function tries -/// to avoid such complexity by touching only parts of the container around -/// <c><i>beg</i></c>, <c><i>mid</i></c>, and <c><i>end</i></c>. -/// -/// \param beg Beginning of memory region. -/// \param mid Middle of memory region. -/// \param end Old end of memory region. -/// -/// \returns True if the contiguous container <c>[beg, end)</c> is properly -/// poisoned. -int __sanitizer_verify_contiguous_container(const void *beg, const void *mid, - const void *end); - -/// Similar to <c>__sanitizer_verify_contiguous_container()</c> but also -/// returns the address of the first improperly poisoned byte. -/// -/// Returns NULL if the area is poisoned properly. -/// -/// \param beg Beginning of memory region. -/// \param mid Middle of memory region. -/// \param end Old end of memory region. -/// -/// \returns The bad address or NULL. -const void *__sanitizer_contiguous_container_find_bad_address(const void *beg, - const void *mid, - const void *end); - -/// Prints the stack trace leading to this call (useful for calling from the -/// debugger). -void __sanitizer_print_stack_trace(void); - -// Symbolizes the supplied 'pc' using the format string 'fmt'. -// Outputs at most 'out_buf_size' bytes into 'out_buf'. -// If 'out_buf' is not empty then output is zero or more non empty C strings -// followed by single empty C string. Multiple strings can be returned if PC -// corresponds to inlined function. Inlined frames are printed in the order -// from "most-inlined" to the "least-inlined", so the last frame should be the -// not inlined function. -// Inlined frames can be removed with 'symbolize_inline_frames=0'. -// The format syntax is described in -// lib/sanitizer_common/sanitizer_stacktrace_printer.h. -void __sanitizer_symbolize_pc(void *pc, const char *fmt, char *out_buf, - size_t out_buf_size); -// Same as __sanitizer_symbolize_pc, but for data section (i.e. globals). -void __sanitizer_symbolize_global(void *data_ptr, const char *fmt, - char *out_buf, size_t out_buf_size); - -/// Sets the callback to be called immediately before death on error. -/// -/// Passing 0 will unset the callback. -/// -/// \param callback User-provided callback. -void __sanitizer_set_death_callback(void (*callback)(void)); - - -// Interceptor hooks. -// Whenever a libc function interceptor is called, it checks if the -// corresponding weak hook is defined, and calls it if it is indeed defined. -// The primary use-case is data-flow-guided fuzzing, where the fuzzer needs -// to know what is being passed to libc functions (for example memcmp). -// FIXME: implement more hooks. - -/// Interceptor hook for <c>memcmp()</c>. -/// -/// \param called_pc PC (program counter) address of the original call. -/// \param s1 Pointer to block of memory. -/// \param s2 Pointer to block of memory. -/// \param n Number of bytes to compare. -/// \param result Value returned by the intercepted function. -void __sanitizer_weak_hook_memcmp(void *called_pc, const void *s1, - const void *s2, size_t n, int result); - -/// Interceptor hook for <c>strncmp()</c>. -/// -/// \param called_pc PC (program counter) address of the original call. -/// \param s1 Pointer to block of memory. -/// \param s2 Pointer to block of memory. -/// \param n Number of bytes to compare. -/// \param result Value returned by the intercepted function. -void __sanitizer_weak_hook_strncmp(void *called_pc, const char *s1, - const char *s2, size_t n, int result); - -/// Interceptor hook for <c>strncasecmp()</c>. -/// -/// \param called_pc PC (program counter) address of the original call. -/// \param s1 Pointer to block of memory. -/// \param s2 Pointer to block of memory. -/// \param n Number of bytes to compare. -/// \param result Value returned by the intercepted function. -void __sanitizer_weak_hook_strncasecmp(void *called_pc, const char *s1, - const char *s2, size_t n, int result); - -/// Interceptor hook for <c>strcmp()</c>. -/// -/// \param called_pc PC (program counter) address of the original call. -/// \param s1 Pointer to block of memory. -/// \param s2 Pointer to block of memory. -/// \param result Value returned by the intercepted function. -void __sanitizer_weak_hook_strcmp(void *called_pc, const char *s1, - const char *s2, int result); - -/// Interceptor hook for <c>strcasecmp()</c>. -/// -/// \param called_pc PC (program counter) address of the original call. -/// \param s1 Pointer to block of memory. -/// \param s2 Pointer to block of memory. -/// \param result Value returned by the intercepted function. -void __sanitizer_weak_hook_strcasecmp(void *called_pc, const char *s1, - const char *s2, int result); - -/// Interceptor hook for <c>strstr()</c>. -/// -/// \param called_pc PC (program counter) address of the original call. -/// \param s1 Pointer to block of memory. -/// \param s2 Pointer to block of memory. -/// \param result Value returned by the intercepted function. -void __sanitizer_weak_hook_strstr(void *called_pc, const char *s1, - const char *s2, char *result); - -void __sanitizer_weak_hook_strcasestr(void *called_pc, const char *s1, - const char *s2, char *result); - -void __sanitizer_weak_hook_memmem(void *called_pc, - const void *s1, size_t len1, - const void *s2, size_t len2, void *result); - -// Prints stack traces for all live heap allocations ordered by total -// allocation size until top_percent of total live heap is shown. top_percent -// should be between 1 and 100. At most max_number_of_contexts contexts -// (stack traces) are printed. -// Experimental feature currently available only with ASan on Linux/x86_64. -void __sanitizer_print_memory_profile(size_t top_percent, - size_t max_number_of_contexts); - -/// Notify ASan that a fiber switch has started (required only if implementing -/// your own fiber library). -/// -/// Before switching to a different stack, you must call -/// <c>__sanitizer_start_switch_fiber()</c> with a pointer to the bottom of the -/// destination stack and with its size. When code starts running on the new -/// stack, it must call <c>__sanitizer_finish_switch_fiber()</c> to finalize -/// the switch. The <c>__sanitizer_start_switch_fiber()</c> function takes a -/// <c>void**</c> pointer argument to store the current fake stack if there is -/// one (it is necessary when the runtime option -/// <c>detect_stack_use_after_return</c> is enabled). -/// -/// When restoring a stack, this <c>void**</c> pointer must be given to the -/// <c>__sanitizer_finish_switch_fiber()</c> function. In most cases, this -/// pointer can be stored on the stack immediately before switching. When -/// leaving a fiber definitely, NULL must be passed as the first argument to -/// the <c>__sanitizer_start_switch_fiber()</c> function so that the fake stack -/// is destroyed. If your program does not need stack use-after-return -/// detection, you can always pass NULL to these two functions. -/// -/// \note The fake stack mechanism is disabled during fiber switch, so if a -/// signal callback runs during the switch, it will not benefit from stack -/// use-after-return detection. -/// -/// \param fake_stack_save [out] Fake stack save location. -/// \param bottom Bottom address of stack. -/// \param size Size of stack in bytes. -void __sanitizer_start_switch_fiber(void **fake_stack_save, - const void *bottom, size_t size); - -/// Notify ASan that a fiber switch has completed (required only if -/// implementing your own fiber library). -/// -/// When code starts running on the new stack, it must call -/// <c>__sanitizer_finish_switch_fiber()</c> to finalize -/// the switch. For usage details, see the description of -/// <c>__sanitizer_start_switch_fiber()</c>. -/// -/// \param fake_stack_save Fake stack save location. -/// \param bottom_old [out] Bottom address of old stack. -/// \param size_old [out] Size of old stack in bytes. -void __sanitizer_finish_switch_fiber(void *fake_stack_save, - const void **bottom_old, - size_t *size_old); - -// Get full module name and calculate pc offset within it. -// Returns 1 if pc belongs to some module, 0 if module was not found. -int __sanitizer_get_module_and_offset_for_pc(void *pc, char *module_path, - size_t module_path_len, - void **pc_offset); - -#ifdef __cplusplus -} // extern "C" -#endif - -#endif // SANITIZER_COMMON_INTERFACE_DEFS_H |