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/* Copyright (C) 2021 Free Software Foundation, Inc.
Contributed by Oracle.
This file is part of GNU Binutils.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
#ifndef _DBE_FUNCTION_H
#define _DBE_FUNCTION_H
// A Function object represents an individual function in a .o file.
#include "util.h"
#include "Histable.h"
#include "SourceFile.h"
class Module;
class Symbol;
class InlinedSubr;
struct SrcInfo;
struct PCInfo;
template <class ITEM> class Vector;
const uint64_t FUNC_NO_SAVE = (uint64_t) - 1;
const uint64_t FUNC_ROOT = (uint64_t) - 2;
enum
{
FUNC_FLAG_PLT = 1,
FUNC_FLAG_DYNAMIC = 2,
FUNC_FLAG_RESDER = 4, // set if derived function resolution has been done
FUNC_FLAG_NO_OFFSET = 8, // set if disassembly should not show offset from function
FUNC_FLAG_SIMULATED = 16, // not a real function like <Total>, <Unknown>, etc.
FUNC_FLAG_NATIVE = 32, // no byte code for JMethod
FUNC_NOT_JNI = 64, // a function name is not "Java_..."
FUNC_JNI_CHECKED = 128 // already checked for "Java_..."
};
const int MAXDBUF = 32768; // the longest demangled name handled
class Function : public Histable
{
public:
enum MPFuncTypes
{
MPF_DOALL,
MPF_PAR,
MPF_SECT,
MPF_TASK,
MPF_CLONE,
MPF_OUTL
};
Function (uint64_t _id);
virtual ~Function ();
virtual uint64_t get_addr ();
virtual char *get_name (NameFormat = NA);
virtual Vector<Histable*> *get_comparable_objs ();
virtual void set_name (char *); // Set the demangled name
virtual Histable *convertto (Histable_type type, Histable *obj = NULL);
virtual Histable_type
get_type ()
{
return FUNCTION;
};
virtual int64_t
get_size ()
{
return size;
};
void set_comparable_name (const char *string);
void set_mangled_name (const char *string);
void set_match_name (const char *string);
// Find any derived functions, and set their derivedNode
void findDerivedFunctions ();
void findKrakatoaDerivedFunctions ();
void add_PC_info (uint64_t offset, int lineno, SourceFile *cur_src = NULL);
void pushSrcFile (SourceFile* source, int lineno);
SourceFile *popSrcFile ();
int func_cmp (Function *func, SourceFile *srcContext = NULL);
void copy_PCInfo (Function *f);
DbeLine *mapPCtoLine (uint64_t addr, SourceFile *src = NULL);
DbeInstr *mapLineToPc (DbeLine *dbeLine);
DbeInstr *find_dbeinstr (int flag, uint64_t addr);
DbeInstr *create_hide_instr (DbeInstr *instr);
uint64_t find_previous_addr (uint64_t addr);
SourceFile *getDefSrc ();
char *getDefSrcName ();
void setDefSrc (SourceFile *sf);
void setLineFirst (int lineno);
Vector<SourceFile*> *get_sources ();
char *
get_mangled_name ()
{
return mangled_name;
}
char *
get_match_name ()
{
return match_name;
}
inline Function *
cardinal ()
{
return alias ? alias : this;
}
unsigned int flags; // FUNC_FLAG_*
Module *module; // pointer to module containing source
int line_first; // range of line numbers for function
int line_last;
int64_t size; // size of the function in bytes
uint64_t save_addr; // used for detection of leaf routines
DbeInstr *derivedNode; // If derived from another function
bool isOutlineFunction; // if outline (save assumed)
unsigned int chksum; // check sum of instructions
char *img_fname; // file containing function image
uint64_t img_offset; // file offset of the image
SourceFile *curr_srcfile;
DbeLine *defaultDbeLine;
Function *usrfunc; // User function
Function *alias;
bool isUsed;
bool isHideFunc;
SourceFile *def_source;
Function *indexStabsLink; // correspondent function for the .o file
Symbol *elfSym;
InlinedSubr *inlinedSubr;
int inlinedSubrCnt;
private:
DbeInstr **instHTable; // hash table for DbeInstr
int *addrIndexHTable; // hash table for addrs index
void setSource ();
PCInfo *lookup_PCInfo (uint64_t offset);
SrcInfo *new_srcInfo ();
char *mangled_name;
char *match_name; // mangled name, with globalization stripped
char *comparable_name; // demangled name, with globalization and blanks stripped
char *name_buf;
NameFormat current_name_format;
Vector<PCInfo*> *linetab;
Vector<DbeInstr*> *instrs;
Vector<uint64_t> *addrs;
uint64_t instr_id;
Vector<SourceFile*> *sources;
SrcInfo *curr_srcinfo; // the current source stack of the function
SrcInfo *srcinfo_list; // master list for SrcInfo
};
class JMethod : public Function
{
public:
JMethod (uint64_t _id);
virtual ~JMethod ();
virtual void set_name (char *);
virtual uint64_t get_addr ();
void
set_addr (Vaddr _addr)
{
addr = _addr;
}
uint64_t
get_mid ()
{
return mid;
}
void
set_mid (uint64_t _mid)
{
mid = _mid;
}
char *
get_signature ()
{
return signature;
}
void
set_signature (const char *s)
{
signature = dbe_strdup (s);
}
// Returns true if func's name matches method's as its JNI implementation
bool jni_match (Function *func);
private:
uint64_t mid;
Vaddr addr;
char *signature;
Function *jni_function;
};
#endif /* _DBE_FUNCTION_H */
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