callstack.c File Reference

Go to the source code of this file.

Data Structures
struct	ReturnCachePtr

Macros
#define	RESTORE_RETURNVAL   0x8fbf0000
#define	RESTORE_RETURNVAL_MASK   0xffff0000
#define	RESTORE_RETURNVAL2   0xdfbf0000
#define	RESTORE_RETURNVAL3   0x7bbf0000
#define	ADJUST_STACKP_C   0x27bd0000
#define	ADJUST_STACKP_C_MASK   0xffff0000
#define	ADJUST_STACKP_V   0x03a1e821
#define	ADJUST_STACKP_V_MASK   0xffffffff
#define	SET_UPPER_C   0x3c010000
#define	SET_UPPER_C_MASK   0xffff0000
#define	OR_LOWER_C   0x34210000
#define	OR_LOWER_C_MASK   0xffff0000
#define	SET_LOWER_C   0x34010000
#define	SET_LOWER_C_MASK   0xffff0000
#define	RETURN   0x03e00008
#define	CALL(f)   (0x0c000000 | (((int) (f)) >> 2))
#define	HASH_SIZE   256
#define	HASH(ra)   ((((int) (ra)) >> 2) & (HASH_SIZE - 1))
#define	TRUE   1
#define	FALSE   0

Typedefs
typedef int	Bool

Functions
unsigned int *	ps2GetReturnAddress ()
unsigned int *	ps2GetStackPointer ()
int	main ()
void	ps2GetStackTrace (unsigned int *results, int max)

Variables
static ReturnCacheRec	returnCache [HASH_SIZE]

Macro Definition Documentation

ADJUST_STACKP_C

#define ADJUST_STACKP_C   0x27bd0000

Definition at line 56 of file callstack.c.

ADJUST_STACKP_C_MASK

#define ADJUST_STACKP_C_MASK   0xffff0000

Definition at line 57 of file callstack.c.

ADJUST_STACKP_V

#define ADJUST_STACKP_V   0x03a1e821

Definition at line 62 of file callstack.c.

ADJUST_STACKP_V_MASK

#define ADJUST_STACKP_V_MASK   0xffffffff

Definition at line 63 of file callstack.c.

CALL

#define CALL

(

f

)

(0x0c000000 | (((int) (f)) >> 2))

Definition at line 86 of file callstack.c.

FALSE

#define FALSE   0

Definition at line 112 of file callstack.c.

HASH

#define HASH

(

ra

)

((((int) (ra)) >> 2) & (HASH_SIZE - 1))

Definition at line 104 of file callstack.c.

HASH_SIZE

#define HASH_SIZE   256

Definition at line 93 of file callstack.c.

OR_LOWER_C

#define OR_LOWER_C   0x34210000

Definition at line 74 of file callstack.c.

OR_LOWER_C_MASK

#define OR_LOWER_C_MASK   0xffff0000

Definition at line 75 of file callstack.c.

RESTORE_RETURNVAL

#define RESTORE_RETURNVAL   0x8fbf0000

Definition at line 40 of file callstack.c.

RESTORE_RETURNVAL2

#define RESTORE_RETURNVAL2   0xdfbf0000

Definition at line 46 of file callstack.c.

RESTORE_RETURNVAL3

#define RESTORE_RETURNVAL3   0x7bbf0000

Definition at line 51 of file callstack.c.

RESTORE_RETURNVAL_MASK

#define RESTORE_RETURNVAL_MASK   0xffff0000

Definition at line 41 of file callstack.c.

RETURN

#define RETURN   0x03e00008

Definition at line 84 of file callstack.c.

SET_LOWER_C

#define SET_LOWER_C   0x34010000

Definition at line 80 of file callstack.c.

SET_LOWER_C_MASK

#define SET_LOWER_C_MASK   0xffff0000

Definition at line 81 of file callstack.c.

SET_UPPER_C

#define SET_UPPER_C   0x3c010000

Definition at line 68 of file callstack.c.

SET_UPPER_C_MASK

#define SET_UPPER_C_MASK   0xffff0000

Definition at line 69 of file callstack.c.

TRUE

#define TRUE   1

Definition at line 109 of file callstack.c.

Typedef Documentation

Bool

typedef int Bool

Definition at line 106 of file callstack.c.

Function Documentation

main()

int main

(

)

Definition at line 45 of file callstacktest.c.

{
  testFunction1();
 
  while(1)
  {
  }
 
  return 0;
}

References actAlign, framebuffer_t::address, zbuffer_t::address, ARRAY_ENTRIES, padButtonStatus::btns, CreateSave(), packet_t::data, data, dma_channel_fast_waits(), DMA_CHANNEL_GIF, dma_channel_initialize(), dma_channel_send_chain(), dma_channel_send_normal(), dma_channel_shutdown(), DMA_CHANNEL_toIPU, dma_wait_fast(), DOUBLE_BYTE, draw_clear(), draw_init_env(), draw_setup_environment(), zbuffer_t::enable, fontstudio_load_ini(), fontstudio_parse_ini(), fontstudio_unload_ini(), fontx_load(), fontx_unload(), GRAPH_ALIGN_BLOCK, GRAPH_ALIGN_PAGE, graph_initialize(), graph_shutdown(), graph_vram_allocate(), graph_vram_free(), graph_wait_vsync(), GS_PSM_32, framebuffer_t::height, impress, init_drawing_environment(), init_gs(), init_texture(), InitCB(), initializePad(), krom_k, krom_u, LoadModules(), loadModules(), InitCBParam::m_DrawPck, InitCBParam::m_pData, InitCBParam::m_pInfo, InitCBParam::m_TexAddr, InitCBParam::m_XFerPck, framebuffer_t::mask, zbuffer_t::mask, MAX_SIZE, MC_ATTR_SUBDIR, mc_Format, mc_Free, mc_Type, MC_TYPE_MC, MC_TYPE_XMC, mcDir, mcGetDir(), mcGetInfo(), mcInit(), mcSync(), zbuffer_t::method, MPEG_BITSTREAM_FILE, MPEG_Destroy(), MPEG_Initialize(), MPEG_Picture, new_pad, NULL, old_pad, packet, packet_free(), packet_init(), PACKET_NORMAL, PAD_CIRCLE, PAD_CROSS, PAD_DOWN, PAD_L1, PAD_L2, PAD_L3, PAD_LEFT, PAD_R1, PAD_R2, PAD_R3, PAD_RIGHT, PAD_SELECT, PAD_SQUARE, PAD_START, PAD_STATE_DISCONN, PAD_STATE_FINDCTP1, PAD_STATE_STABLE, PAD_TRIANGLE, PAD_UP, padBuf, paddata, padEnterPressMode(), padExitPressMode(), padGetPortMax(), padGetSlotMax(), padGetState(), padInit(), padPortOpen(), padRead(), padSetActDirect(), port, framebuffer_t::psm, render(), padButtonStatus::rjoy_h, run_demo(), s_MPEGDataSize, s_pMPEGData, s_pTransferPtr, sceSdInit(), sceSdSetParam(), SD_PARAM_MVOLL, SD_PARAM_MVOLR, SD_VOICE, SetDMA(), SifExitRpc(), SifInitRpc(), SifLoadModule(), SINGLE_BYTE, SleepThread(), slot, sndStreamOpen(), sndStreamPlay(), STREAM_END_CLOSE, STREAM_STEREO, testFunction1(), padButtonStatus::triangle_p, framebuffer_t::width, and zbuffer_t::zsm.

Referenced by ps2GetStackTrace().

ps2GetReturnAddress()

unsigned int* ps2GetReturnAddress

(

)

Referenced by ps2GetStackTrace().

ps2GetStackPointer()

unsigned int* ps2GetStackPointer

(

)

Referenced by ps2GetStackTrace().

ps2GetStackTrace()

void ps2GetStackTrace	(	unsigned int *	results,
		int	max
	)

Definition at line 119 of file callstack.c.

{
  unsigned int*   ra;
  unsigned int*   ra_limit;
  unsigned int*   sp;
  unsigned int    inst;
  unsigned int    mainCall;
  unsigned short  const_upper;
  unsigned short  const_lower;
  int ra_offset;
  int sp_adjust;
  Bool found_ra_offset, found_sp_adjust;
  Bool found_const_upper, found_const_lower;
  ReturnCachePtr  rc;
 
  ra = ps2GetReturnAddress();
  sp = ps2GetStackPointer();
  mainCall = CALL(main);
 
  while (ra && max)
  {
    rc = &returnCache[HASH(ra)];
    if (rc->returnAddress != ra)
    {
      found_ra_offset = FALSE;
      found_sp_adjust = FALSE;
      found_const_upper = FALSE;
      found_const_lower = FALSE;
      const_upper = 0;
      const_lower = 0;
      rc->returnAddress = ra;
      ra_limit = (unsigned int *) 0x200000;
      ra_offset = 0;
      sp_adjust = -1;
 
      while ((!found_ra_offset || !found_sp_adjust) && ra < ra_limit)
      {
        inst = *ra;
        /* look for the offset of the PC in the stack frame */
        if ((inst & RESTORE_RETURNVAL_MASK) == RESTORE_RETURNVAL)
        {
          ra_offset = inst & ~RESTORE_RETURNVAL_MASK;
          found_ra_offset = TRUE;
        }
        else if ((inst & RESTORE_RETURNVAL_MASK) == RESTORE_RETURNVAL2)
        {
            ra_offset = inst & ~RESTORE_RETURNVAL_MASK;
            found_ra_offset = TRUE;
        }
        else if ((inst & RESTORE_RETURNVAL_MASK) == RESTORE_RETURNVAL3)
        {
            ra_offset = inst & ~RESTORE_RETURNVAL_MASK;
            found_ra_offset = TRUE;
        }
        else if ((inst & ADJUST_STACKP_C_MASK) == ADJUST_STACKP_C)
        {
          sp_adjust = inst & ~ADJUST_STACKP_C_MASK;
          found_sp_adjust = TRUE;
        }
        else if ((inst & ADJUST_STACKP_V_MASK) == ADJUST_STACKP_V)
        {
          sp_adjust = 0;
          found_sp_adjust = TRUE;
        }
        else if ((inst & SET_UPPER_C_MASK) == SET_UPPER_C)
        {
          const_upper = inst & ~SET_UPPER_C_MASK;
          const_lower = 0;
          found_const_upper = TRUE;
        }
        else if ((inst & OR_LOWER_C_MASK) == OR_LOWER_C)
        {
          const_lower = inst & ~OR_LOWER_C_MASK;
          found_const_lower = TRUE;
        }
        else if ((inst & SET_LOWER_C_MASK) == SET_LOWER_C)
        {
          const_lower = inst & ~SET_LOWER_C_MASK;
          const_upper = 0;
          found_const_lower = TRUE;
        }
        else if (inst == RETURN)
          ra_limit = ra + 2;
        ra++;
      }
 
      if (sp_adjust == 0 && (found_const_upper || found_const_lower))
        sp_adjust = (const_upper << 16) | const_lower;
      rc->raOffset = ra_offset;
      rc->spAdjust = sp_adjust;
    }
    /* if something went wrong, punt */
    if (rc->spAdjust <= 0)
    {
      *results++ = 0;
      break;
    }
 
    ra = (unsigned int *) sp[rc->raOffset>>2];
    sp += rc->spAdjust >> 2;
 
    if (ra == 0)
    {
      *results++ = 0;
      break;
    }
 
    *results++ = ((unsigned int) ra) - 8;
    if (ra[-2] == mainCall)
    {
      *results++ = 0;
      break;
    }
    max--;
  }
}

References ADJUST_STACKP_C, ADJUST_STACKP_C_MASK, ADJUST_STACKP_V, ADJUST_STACKP_V_MASK, CALL, FALSE, HASH, main(), max, OR_LOWER_C, OR_LOWER_C_MASK, ps2GetReturnAddress(), ps2GetStackPointer(), ra, RESTORE_RETURNVAL, RESTORE_RETURNVAL2, RESTORE_RETURNVAL3, RESTORE_RETURNVAL_MASK, RETURN, returnCache, SET_LOWER_C, SET_LOWER_C_MASK, SET_UPPER_C, SET_UPPER_C_MASK, sp, and TRUE.

Referenced by TestFunction3().

Variable Documentation

returnCache

ReturnCacheRec returnCache[HASH_SIZE]

static

Definition at line 102 of file callstack.c.

Referenced by ps2GetStackTrace().