quickstack/quickstack.h at master · acscott/quickstack · GitHub

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#ifndef quickstack_h
#definequickstack_h

#definePACKAGE1
#definePACKAGE_VERSION1

#include<bfd.h>
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<assert.h>
#include<stdarg.h>
#include<errno.h>
#include<sys/ptrace.h>
#include<sys/user.h>
#include<sys/stat.h>
#include<sys/types.h>
#include<sys/wait.h>
#include<sys/reg.h>
#include<sys/time.h>
#include<unistd.h>
#include<limits.h>
#include<iostream>
#include<fstream>
#include<dirent.h>
#include<vector>
#include<map>
#include<string>
#include<sstream>
#include<list>
#include<algorithm>
#include<libelf.h>

using std::string;
using std::vector;
using std::map;

// From binutils/include/demangle.h
#defineDMGL_PARAMS (1 << 0) /* Include function args */
#defineDMGL_ANSI (1 << 1) /* Include const, volatile, etc */
#defineDMGL_VERBOSE (1 << 3) /* Include implementation details. */
#defineDMGL_TYPES (1 << 4) /* Also try to demangle type encodings. */
extern"C"char* cplus_demangle(constchar* mangled, int options);

#defineDBG(v, format, ...) \
if (debug_level >= v) { \
print_log(v, format, ##__VA_ARGS__); \
 }

voidprint_log(int level, constchar* format, ...);
voidprint_stack(constchar* format, ...);

structbfd_handle;

structsymbol_ent {
 ulong addr;
 string name;
symbol_ent(const ulong addr = 0, const string& name = "")
 : addr(addr), name(name) {}
};

inlinebooloperator<(const symbol_ent& lhs, const symbol_ent& rhs) {
return lhs.addr < rhs.addr;
}

structsymbol_table {
typedef vector<symbol_ent> symbols_type;
 symbols_type symbols;
 ulong text_vma;
 ulong text_size;
 bfd_handle* bh;
symbol_table() : text_vma(0), text_size(0) {}
~symbol_table() {}
};

structauto_fp {
explicitauto_fp(FILE* fp) : fp(fp) {}
~auto_fp() {
if (fp) {
fclose(fp);
 }
 }
operatorFILE*() { return fp; }

private:
FILE* fp;
auto_fp(const auto_fp&);
 auto_fp& operator=(const auto_fp&);
};

structbfd_handle {
bfd_handle(constchar* filename) : filename(filename) {
 size = 0;
 has_debug_symbols = false;
 syms = NULL;
 st = NULL;
 debug_file = NULL;
 }
voidclose_all();
voidinit(constchar* file);
voiddebug_init();
voidclose();
voidload_symbols(bool relative, ulong addr_begin);
voidload_debug_section_if();
 bfd* get();
boolhas_debug() const;
voidfree_syms_if();
voidfree_st_if();
intget_file_line(ulong addr,
constchar** file,
constchar** function,
 uint* lineno) const;

 symbol_table* st;
constchar* filename;

private:
 uint size;
bool dynamic;
char* debug_file;
 asection* dbgsec;
bool has_debug_symbols;
 bfd* abfd;
 asymbol** syms;
 ulong symcnt;
};

structsymbol_table_map {
symbol_table_map() {}
~symbol_table_map() {
for (m_type::iterator i = m.begin(); i != m.end(); ++i) {
 symbol_table* st = i->second;
 bfd_handle* bh = st->bh;
 bh->close_all();
delete bh;
 }
 }
 symbol_table* get(const std::string& path) {
 m_type::iterator i = m.find(path);
if (i != m.end()) {
return i->second;
 }
returnNULL;
 }
voidset(const std::string& path, symbol_table* st) { m[path] = st; }

private:
typedef map<std::string, symbol_table*> m_type;
 m_type m;

private:
symbol_table_map(const symbol_table_map&);
 symbol_table_map& operator=(const symbol_table_map&);
};

structproc_map_ent {
 ulong addr_begin;
 ulong addr_size;
 ulong offset;
 string path;
 symbol_table* stbl;
bool relative : 1;
bool is_vdso : 1;

proc_map_ent(const ulong addr_begin = 0)
 : addr_begin(addr_begin),
addr_size(0),
 offset(0),
 stbl(nullptr),
 relative(false),
 is_vdso(false) {}
};

inlinebooloperator<(const proc_map_ent& lhs, const proc_map_ent& rhs) {
return lhs.addr_begin < rhs.addr_begin;
}

structproc_info {
typedef vector<proc_map_ent> maps_type;
 maps_type maps;
structtimeval tv_start;
structtimeval tv_end;
double stall_time;
};

typedefstructstopper_symbol {
 string name;
 ulong addr_begin;
 ulong addr_end;
} stopper_symbol;

typedefstructthread_info {
thread_info(constint tid) : tid(tid) {
const string file_path = "/proc/" + std::to_string(tid) + "/comm";
 std::ifstream comm_file(file_path);
if (comm_file.is_open()) {
std::getline(comm_file, name);
 comm_file.close();
 } else {
 name = "UNKNOWN";
 }
 }

staticinlinesize_tmax_name_len() {
return16U;
 }

int tid;
 string name;
} thread_info;

inlinebooloperator<(const thread_info& lhs, const thread_info& rhs) {
return lhs.tid < rhs.tid;
}

typedefstructvector<thread_info> thread_list;

externint target_pid;
externint debug_level;
externconstchar* debug_dir;
extern stopper_symbol stopper[];
externint num_stopper_symbol;
externint print_arg;
externint single_line;
externint trace_multiple_procs;
externint basename_only;
externint max_ptrace_calls;
externint frame_check;
externint debug_print_time_level;
externconstchar* stack_out;
externint flush_log;
externint timeout_seconds;
externbool lock_all;

#endif