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添加一个逻辑来判断是不是irq的位置

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anod 2023-04-03 14:36:47 +08:00
parent 6fc6adf703
commit bc6874c278
1 changed files with 30 additions and 1 deletions
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31
source/arm11/cheat.c
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@ -252,10 +252,15 @@ static int end_of_rom( CodeLocation addr, u32 size )
static int rom_search_hookpoint( CodeLocation addr, int addrlen, CodeLocation hookpoint[MAX_HOOKPOINT] )
{
int hookpoint_idx = 0;
CodeLocation mark[MAX_HOOKPOINT];
memset( mark, 0, sizeof(mark) );
int hookpoint_idx = 0, mark_idx = 0;
for( int i=0; i < addrlen; ++i )
{
CodeLocation pc = addr + i;
if( *pc == 0x03007ffc && mark_idx < MAX_HOOKPOINT )
mark[mark_idx++] = pc;
if( MASK_PC0(0XFFFF0FFF) == 0XE3A00301 &&
MASK_PC1(0XFFF00FFF) == 0XE2800C02 &&
MASK_PC2(0XFFF00FFF) == 0XE5D00008 &&
@ -301,6 +306,30 @@ static int rom_search_hookpoint( CodeLocation addr, int addrlen, CodeLocation ho
if( hookpoint_idx >= MAX_HOOKPOINT ) break;
}
// test for core hookpoint
CodeLocation core_hpt = NULL;
for( int i=0; i < hookpoint_idx; ++i )
{
CodeLocation p = hookpoint[i];
if( p - addr > (1<<11) ) break;
for( int j = 0; j < mark_idx; ++j )
{
CodeLocation q = mark[j];
u32 d = p<q ? q-p : p-q;
if( d < (1<<10) )
{
core_hpt = p;
break;
}
}
}
if( core_hpt != NULL )
{
// log
hookpoint[0] = core_hpt;
hookpoint_idx = 1;
}
return hookpoint_idx;
}