318 lines
6.9 KiB
C++
318 lines
6.9 KiB
C++
#include "types.h"
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#include "cfg/cfg.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <stdio.h>
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#include <memory.h>
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#include <signal.h>
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//#include <sys/ucontext.h>
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#include <stdio.h>
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#include <signal.h>
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//#include <execinfo.h>
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#include <sys/syscall.h>
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#include <sys/stat.h>
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#include <poll.h>
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#include <termios.h>
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//#include <curses.h>
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#include <fcntl.h>
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#include <semaphore.h>
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#include <stdarg.h>
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#include <signal.h>
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#include <sys/param.h>
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#include <sys/mman.h>
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#include <sys/time.h>
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#include "hw/sh4/dyna/blockmanager.h"
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#include <set>
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#include "deps/libelf/elf.h"
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#if defined(_ANDROID)
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#include <asm/sigcontext.h>
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typedef struct ucontext_t {
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unsigned long uc_flags;
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struct ucontext_t *uc_link;
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struct {
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void *p;
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int flags;
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size_t size;
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} sstack_data;
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struct sigcontext uc_mcontext;
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/* some 2.6.x kernel has fp data here after a few other fields
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* we don't use them for now...
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*/
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} ucontext_t;
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#include <android/log.h>
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#endif
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#if HOST_CPU == CPU_ARM
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#define GET_PC_FROM_CONTEXT(c) (((ucontext_t *)(c))->uc_mcontext.arm_pc)
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#else
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#define GET_PC_FROM_CONTEXT(c) (((ucontext_t *)(c))->uc_mcontext.pc)
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#endif
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/**
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@file CallStack_Android.h
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@brief Getting the callstack under Android
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@author Peter Holtwick
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*/
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#include <unwind.h>
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#include <stdio.h>
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#include <string.h>
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int tick_count=0;
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pthread_t proft;
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pthread_t thread[2];
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void* prof_address[2];
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u32 prof_wait;
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u8* syms_ptr;
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int syms_len;
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void sample_Syms(u8* data,u32 len)
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{
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syms_ptr=data;
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syms_len=len;
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}
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void prof_handler (int sn, siginfo_t * si, void *ctxr)
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{
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ucontext_t* ctx=(ucontext_t*)ctxr;
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int thd=-1;
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if (pthread_self()==thread[0]) thd=0;
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else if (pthread_self()==thread[1]) thd=1;
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else return;
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prof_address[thd]=(void*)GET_PC_FROM_CONTEXT(ctx);
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}
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void install_prof_handler(int id)
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{
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struct sigaction act, segv_oact;
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memset(&act, 0, sizeof(act));
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act.sa_sigaction = prof_handler;
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sigemptyset(&act.sa_mask);
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act.sa_flags = SA_SIGINFO | SA_RESTART;
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sigaction(SIGPROF, &act, &segv_oact);
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thread[id]=pthread_self();
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}
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void prof_head(FILE* out, const char* type, const char* name)
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{
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fprintf(out,"==xx==xx==\n%s:%s\n",type,name);
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}
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void prof_head(FILE* out, const char* type, int d)
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{
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fprintf(out,"==xx==xx==\n%s:%d\n",type,d);
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}
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void elf_syms(FILE* out,const char* libfile)
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{
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struct stat statbuf;
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printf("LIBFILE \"%s\"\n",libfile);
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int fd=open(libfile,O_RDONLY,0);
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if (!fd)
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{
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printf("Failed to open file \"%s\"\n",libfile);
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return;
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}
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if (fstat (fd,&statbuf) < 0)
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{
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printf("Failed to fstat file \"%s\"\n",libfile);
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return;
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}
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{
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void* data=mmap (0, statbuf.st_size, PROT_READ, MAP_SHARED, fd, 0);
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close(fd);
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if (data==(void*)-1)
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{
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printf("Failed to mmap file \"%s\"\n",libfile);
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return;
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}
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//printf("MMap: %08p, %08X\n",data,statbuf.st_size);
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int dynsym=-1;
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int dynstr=-1;
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/*
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Section: 2 -> .dynsym
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Section: 3 -> .dynstr
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*/
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if (elf_checkFile(data)>=0)
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{
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int scnt=elf_getNumSections(data);
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for (int si=0;si<scnt;si++)
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{
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if (strcmp(".dynsym",elf_getSectionName(data,si))==0)
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dynsym=si;
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if (strcmp(".dynstr",elf_getSectionName(data,si))==0)
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dynstr=si;
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}
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}
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else
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printf("invalid elf file\n");
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if (dynsym >= 0)
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{
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prof_head(out,"libsym",libfile);
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// printf("Found dymsym %d, and dynstr %d!\n",dynsym,dynstr);
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elf_symbol* sym=(elf_symbol*)elf_getSection(data,dynsym);
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int symcnt=elf_getSectionSize(data,dynsym)/sizeof(elf_symbol);
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for (int i=0;i<symcnt;i++)
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{
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if (sym[i].st_value && sym[i].st_name && sym[i].st_shndx)
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{
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char* name=(char*)elf_getSection(data,dynstr);// sym[i].st_shndx
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// printf("Symbol %d: %s, %08X, %d bytes\n",i,name+sym[i].st_name,sym[i].st_value,sym[i].st_size);
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fprintf(out,"%08X %d %s\n",sym[i].st_value,sym[i].st_size,name+sym[i].st_name);
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}
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}
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}
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else
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printf("no dynsym\n");
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munmap(data,statbuf.st_size);
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}
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}
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volatile bool prof_run;
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int str_ends_with(const char * str, const char * suffix) {
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if( str == NULL || suffix == NULL )
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return 0;
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size_t str_len = strlen(str);
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size_t suffix_len = strlen(suffix);
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if(suffix_len > str_len)
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return 0;
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return 0 == strncmp( str + str_len - suffix_len, suffix, suffix_len );
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}
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void sh4_jitsym(FILE* out);
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void* prof( void *ptr )
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{
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FILE* prof_out;
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char line[512];
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sprintf(line,"/%d.reprof",tick_count);
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string logfile=GetPath(line);
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printf("Profiler thread logging to -> %s\n",logfile.c_str());
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prof_out=fopen(logfile.c_str(),"wb");
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if (!prof_out)
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{
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printf("Failed to open profiler file\n");
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return 0;
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}
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set<string> libs;
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prof_head(prof_out,"vaddr","");
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FILE* maps=fopen("/proc/self/maps","r");
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while(!feof(maps))
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{
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fgets(line,512,maps);
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fputs(line,prof_out);
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if(strstr(line,".so"))
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{
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char file[512];
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file[0]=0;
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sscanf(line,"%*x-%*x %*s %*x %*x:%*x %*d %s\n",file);
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if (strlen(file))
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libs.insert(file);
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}
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}
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//Write map file
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prof_head(prof_out,".map","");
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fwrite(syms_ptr,1,syms_len,prof_out);
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//write exports from .so's
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for (set<string>::iterator it=libs.begin(); it!=libs.end(); it++)
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{
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elf_syms(prof_out,it->c_str());
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}
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//Write shrec syms file !
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prof_head(prof_out,"jitsym","SH4");
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sh4_jitsym(prof_out);
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//Write arm7rec syms file ! -> to do
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//prof_head(prof_out,"jitsym","ARM7");
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prof_head(prof_out,"samples",prof_wait);
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do
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{
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tick_count++;
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//printf("Sending SIGPROF %08X %08X\n",thread[0],thread[1]);
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for (int i=0;i<2;i++) pthread_kill(thread[i],SIGPROF);
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//printf("Sent SIGPROF\n");
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usleep(prof_wait);
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//fwrite(&prof_address[0],1,sizeof(prof_address[0])*2,prof_out);
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fprintf(prof_out,"%p %p\n",prof_address[0],prof_address[1]);
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if (!(tick_count%10000))
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{
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printf("Profiler: %d ticks, flusing ..\n",tick_count);
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fflush(prof_out);
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}
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} while(prof_run);
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fclose(maps);
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fclose(prof_out);
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}
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void sample_Start(int freq)
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{
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prof_wait=1000000/freq;
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printf("sampling profiler: starting %d hz %d wait\n",freq,prof_wait);
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prof_run=true;
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pthread_create( &proft, NULL, prof, 0);
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}
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void sample_Stop()
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{
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if (prof_run)
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{
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prof_run=false;
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pthread_join( proft, NULL);
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}
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printf("sampling profiler: stopped\n");
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}
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