d8cf1a119d
325,000 breakpoints for running "breakpoint set --func-regex ." on lldb itself (after hitting a breakpoint at main so that LLDB.framework is loaded) used to take up to an hour to set, now we are down under a minute. With warm file caches, we are at 40 seconds, and that is with setting 325,000 breakpoint through the GDB remote API. Linux and the native debuggers might be faster. I haven't timed what how much is debug info parsing and how much is the protocol traffic to/from GDB remote. That there were many performance issues. Most of them were due to storing breakpoints in the wrong data structures, or using the wrong iterators to traverse the lists, traversing the lists in inefficient ways, and not optimizing certain function name lookups/symbol merges correctly. Debugging after that is also now very efficient. There were issues with replacing the breakpoint opcodes in memory that was read, and those routines were also fixed. llvm-svn: 183820
151 lines
10 KiB
C++
151 lines
10 KiB
C++
//===-- DNB.h ---------------------------------------------------*- C++ -*-===//
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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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// Created by Greg Clayton on 3/23/07.
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//
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//===----------------------------------------------------------------------===//
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#ifndef __DNB_h__
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#define __DNB_h__
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#include "DNBDefs.h"
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#include <mach/thread_info.h>
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#include <string>
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#define DNB_EXPORT __attribute__((visibility("default")))
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typedef bool (*DNBShouldCancelCallback) (void *);
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void DNBInitialize ();
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void DNBTerminate ();
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nub_bool_t DNBSetArchitecture (const char *arch);
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//----------------------------------------------------------------------
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// Process control
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//----------------------------------------------------------------------
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nub_process_t DNBProcessLaunch (const char *path,
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char const *argv[],
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const char *envp[],
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const char *working_directory, // NULL => dont' change, non-NULL => set working directory for inferior to this
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const char *stdin_path,
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const char *stdout_path,
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const char *stderr_path,
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bool no_stdio,
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nub_launch_flavor_t launch_flavor,
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int disable_aslr,
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char *err_str,
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size_t err_len) DNB_EXPORT;
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nub_process_t DNBProcessAttach (nub_process_t pid, struct timespec *timeout, char *err_str, size_t err_len) DNB_EXPORT;
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nub_process_t DNBProcessAttachByName (const char *name, struct timespec *timeout, char *err_str, size_t err_len) DNB_EXPORT;
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nub_process_t DNBProcessAttachWait (const char *wait_name, nub_launch_flavor_t launch_flavor, bool ignore_existing, struct timespec *timeout, useconds_t interval, char *err_str, size_t err_len, DNBShouldCancelCallback should_cancel = NULL, void *callback_data = NULL) DNB_EXPORT;
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// Resume a process with exact instructions on what to do with each thread:
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// - If no thread actions are supplied (actions is NULL or num_actions is zero),
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// then all threads are continued.
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// - If any thread actions are supplied, then each thread will do as it is told
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// by the action. A default actions for any threads that don't have an
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// explicit thread action can be made by making a thread action with a tid of
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// INVALID_NUB_THREAD. If there is no default action, those threads will
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// remain stopped.
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nub_bool_t DNBProcessResume (nub_process_t pid, const DNBThreadResumeAction *actions, size_t num_actions) DNB_EXPORT;
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nub_bool_t DNBProcessHalt (nub_process_t pid) DNB_EXPORT;
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nub_bool_t DNBProcessDetach (nub_process_t pid) DNB_EXPORT;
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nub_bool_t DNBProcessSignal (nub_process_t pid, int signal) DNB_EXPORT;
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nub_bool_t DNBProcessKill (nub_process_t pid) DNB_EXPORT;
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nub_size_t DNBProcessMemoryRead (nub_process_t pid, nub_addr_t addr, nub_size_t size, void *buf) DNB_EXPORT;
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nub_size_t DNBProcessMemoryWrite (nub_process_t pid, nub_addr_t addr, nub_size_t size, const void *buf) DNB_EXPORT;
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nub_addr_t DNBProcessMemoryAllocate (nub_process_t pid, nub_size_t size, uint32_t permissions) DNB_EXPORT;
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nub_bool_t DNBProcessMemoryDeallocate (nub_process_t pid, nub_addr_t addr) DNB_EXPORT;
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int DNBProcessMemoryRegionInfo (nub_process_t pid, nub_addr_t addr, DNBRegionInfo *region_info) DNB_EXPORT;
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std::string DNBProcessGetProfileData (nub_process_t pid, DNBProfileDataScanType scanType) DNB_EXPORT;
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nub_bool_t DNBProcessSetEnableAsyncProfiling (nub_process_t pid, nub_bool_t enable, uint64_t interval_usec, DNBProfileDataScanType scan_type) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Process status
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//----------------------------------------------------------------------
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nub_bool_t DNBProcessIsAlive (nub_process_t pid) DNB_EXPORT;
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nub_state_t DNBProcessGetState (nub_process_t pid) DNB_EXPORT;
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nub_bool_t DNBProcessGetExitStatus (nub_process_t pid, int *status) DNB_EXPORT;
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nub_bool_t DNBProcessSetExitStatus (nub_process_t pid, int status) DNB_EXPORT;
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nub_size_t DNBProcessGetNumThreads (nub_process_t pid) DNB_EXPORT;
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nub_thread_t DNBProcessGetCurrentThread (nub_process_t pid) DNB_EXPORT;
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nub_thread_t DNBProcessGetCurrentThreadMachPort (nub_process_t pid) DNB_EXPORT;
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nub_thread_t DNBProcessSetCurrentThread (nub_process_t pid, nub_thread_t tid) DNB_EXPORT;
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nub_thread_t DNBProcessGetThreadAtIndex (nub_process_t pid, nub_size_t thread_idx) DNB_EXPORT;
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nub_bool_t DNBProcessSyncThreadState (nub_process_t pid, nub_thread_t tid) DNB_EXPORT;
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nub_addr_t DNBProcessGetSharedLibraryInfoAddress (nub_process_t pid) DNB_EXPORT;
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nub_bool_t DNBProcessSharedLibrariesUpdated (nub_process_t pid) DNB_EXPORT;
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nub_size_t DNBProcessGetSharedLibraryInfo (nub_process_t pid, nub_bool_t only_changed, DNBExecutableImageInfo **image_infos) DNB_EXPORT;
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nub_bool_t DNBProcessSetNameToAddressCallback (nub_process_t pid, DNBCallbackNameToAddress callback, void *baton) DNB_EXPORT;
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nub_bool_t DNBProcessSetSharedLibraryInfoCallback (nub_process_t pid, DNBCallbackCopyExecutableImageInfos callback, void *baton) DNB_EXPORT;
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nub_addr_t DNBProcessLookupAddress (nub_process_t pid, const char *name, const char *shlib) DNB_EXPORT;
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nub_size_t DNBProcessGetAvailableSTDOUT (nub_process_t pid, char *buf, nub_size_t buf_size) DNB_EXPORT;
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nub_size_t DNBProcessGetAvailableSTDERR (nub_process_t pid, char *buf, nub_size_t buf_size) DNB_EXPORT;
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nub_size_t DNBProcessGetAvailableProfileData (nub_process_t pid, char *buf, nub_size_t buf_size) DNB_EXPORT;
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nub_size_t DNBProcessGetStopCount (nub_process_t pid) DNB_EXPORT;
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uint32_t DNBProcessGetCPUType (nub_process_t pid) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Process executable and arguments
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//----------------------------------------------------------------------
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const char * DNBProcessGetExecutablePath (nub_process_t pid) DNB_EXPORT;
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const char * DNBProcessGetArgumentAtIndex (nub_process_t pid, nub_size_t idx) DNB_EXPORT;
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nub_size_t DNBProcessGetArgumentCount (nub_process_t pid) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Process events
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//----------------------------------------------------------------------
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nub_event_t DNBProcessWaitForEvents (nub_process_t pid, nub_event_t event_mask, bool wait_for_set, struct timespec* timeout) DNB_EXPORT;
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void DNBProcessResetEvents (nub_process_t pid, nub_event_t event_mask) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Thread functions
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//----------------------------------------------------------------------
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const char * DNBThreadGetName (nub_process_t pid, nub_thread_t tid) DNB_EXPORT;
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nub_bool_t DNBThreadGetIdentifierInfo (nub_process_t pid, nub_thread_t tid, thread_identifier_info_data_t *ident_info) DNB_EXPORT;
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nub_state_t DNBThreadGetState (nub_process_t pid, nub_thread_t tid) DNB_EXPORT;
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nub_bool_t DNBThreadGetRegisterValueByID (nub_process_t pid, nub_thread_t tid, uint32_t set, uint32_t reg, DNBRegisterValue *value) DNB_EXPORT;
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nub_bool_t DNBThreadSetRegisterValueByID (nub_process_t pid, nub_thread_t tid, uint32_t set, uint32_t reg, const DNBRegisterValue *value) DNB_EXPORT;
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nub_size_t DNBThreadGetRegisterContext (nub_process_t pid, nub_thread_t tid, void *buf, size_t buf_len) DNB_EXPORT;
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nub_size_t DNBThreadSetRegisterContext (nub_process_t pid, nub_thread_t tid, const void *buf, size_t buf_len) DNB_EXPORT;
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nub_bool_t DNBThreadGetRegisterValueByName (nub_process_t pid, nub_thread_t tid, uint32_t set, const char *name, DNBRegisterValue *value) DNB_EXPORT;
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nub_bool_t DNBThreadGetStopReason (nub_process_t pid, nub_thread_t tid, DNBThreadStopInfo *stop_info) DNB_EXPORT;
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const char * DNBThreadGetInfo (nub_process_t pid, nub_thread_t tid) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Breakpoint functions
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//----------------------------------------------------------------------
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nub_bool_t DNBBreakpointSet (nub_process_t pid, nub_addr_t addr, nub_size_t size, nub_bool_t hardware) DNB_EXPORT;
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nub_bool_t DNBBreakpointClear (nub_process_t pid, nub_addr_t addr) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Watchpoint functions
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//----------------------------------------------------------------------
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nub_bool_t DNBWatchpointSet (nub_process_t pid, nub_addr_t addr, nub_size_t size, uint32_t watch_flags, nub_bool_t hardware) DNB_EXPORT;
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nub_bool_t DNBWatchpointClear (nub_process_t pid, nub_addr_t addr) DNB_EXPORT;
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uint32_t DNBWatchpointGetNumSupportedHWP (nub_process_t pid) DNB_EXPORT;
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const DNBRegisterSetInfo *
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DNBGetRegisterSetInfo (nub_size_t *num_reg_sets) DNB_EXPORT;
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nub_bool_t DNBGetRegisterInfoByName (const char *reg_name, DNBRegisterInfo* info) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Printf style formatting for printing values in the inferior memory
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// space and registers.
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//----------------------------------------------------------------------
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nub_size_t DNBPrintf (nub_process_t pid, nub_thread_t tid, nub_addr_t addr, FILE *file, const char *format) DNB_EXPORT;
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//----------------------------------------------------------------------
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// Other static nub information calls.
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//----------------------------------------------------------------------
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const char * DNBStateAsString (nub_state_t state) DNB_EXPORT;
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nub_bool_t DNBResolveExecutablePath (const char *path, char *resolved_path, size_t resolved_path_size) DNB_EXPORT;
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#endif
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