boot.c-Dateireferenz

#include "lolevel.h"
#include "platform.h"
#include "core.h"

Include-Abhängigkeitsdiagramm für boot.c:

gehe zum Quellcode dieser Datei

Funktionen
void	createHook (void *pNewTcb)
void	deleteHook (void *pTcb)
void	boot ()
void	__attribute__ ((naked, noinline))
void	h_usrInit ()
void	h_usrKernelInit ()
void	h_usrRoot ()

Variablen
const char *const	new_sa = &_end
long	wrs_kernel_bss_start
long	wrs_kernel_bss_end

Dokumentation der Funktionen

void __attribute__

(

(naked, noinline)

)

!!

Definiert in Zeile 17 der Datei boot.c.

{
    long *canon_data_src = (void*)0xFFEFB340;
    long *canon_data_dst = (void*)0x1900;
    long canon_data_len = 0xB960;
    long *canon_bss_start = (void*)0xD260; // just after data
    long canon_bss_len = 0x9C090 - 0xD260;
    long i;

    asm volatile (
    "MRC     p15, 0, R0,c1,c0\n"
    "ORR     R0, R0, #0x1000\n"
    "ORR     R0, R0, #4\n"
    "ORR     R0, R0, #1\n"
    "MCR     p15, 0, R0,c1,c0\n"
    :::"r0");

    for(i=0;i<canon_data_len/4;i++)
    canon_data_dst[i]=canon_data_src[i];

    for(i=0;i<canon_bss_len/4;i++)
    canon_bss_start[i]=0;

    asm volatile (
    "MRC     p15, 0, R0,c1,c0\n"
    "ORR     R0, R0, #0x1000\n"
    "BIC     R0, R0, #4\n"
    "ORR     R0, R0, #1\n"
    "MCR     p15, 0, R0,c1,c0\n"
    :::"r0");

    h_usrInit();
}

void boot

(

)

Definiert in Zeile 43 der Datei boot.c.

            {

    long *canon_data_src = (void*)0xFFEDAC70;   // value taken at ROM:FFC00188
    long *canon_data_dst = (void*)0x1900;
    long canon_data_len = 0xDF84 - 0x1900; // data_end - data_start 0xDF7C taken at ROM:FFC00138
    long *canon_bss_start = (void*)0xDF84; // just after data 
    long canon_bss_len = 0xD4F38 - 0xDF84; // d4ec8 taken at ROM:FFC00FB4

    long i;

    // enable caches and write buffer...
    // this is a carryover from old dryos ports, may not be useful
    asm volatile (
            "MRC     p15, 0, R0,c1,c0\n"
            "ORR     R0, R0, #0x1000\n"
            "ORR     R0, R0, #4\n"
            "ORR     R0, R0, #1\n"
            "MCR     p15, 0, R0,c1,c0\n"
        :::"r0"
      );

    for(i=0;i<canon_data_len/4;i++)
            canon_data_dst[i]=canon_data_src[i];

    for(i=0;i<canon_bss_len/4;i++)
            canon_bss_start[i]=0;

    asm volatile ("B      sub_FFC001A4_my\n");
};

void createHook

(

void *

pNewTcb)

Definiert in Zeile 110 der Datei main.c.

{
    char *name = (char*)(*(long*)((char*)pNewTcb+0x34));
    long *entry = (long*)((char*)pNewTcb+0x74);

    // always hook first task creation
    // to create SpyProc
    if (!stop_hooking){
        task_prev = (void*)(*entry);
        *entry = (long)task_start_hook;
        stop_hooking = 1;
    } else {
        // hook/replace another tasks
        if (my_ncmp(name, "tPhySw", 6) == 0){
            *entry = (long)physw_hook;
        }

        if (my_ncmp(name, "tInitFileM", 10) == 0){
            init_file_modules_prev = (void*)(*entry);
#if CAM_MULTIPART
            *entry = (long)init_file_modules_task;
#else
            *entry = (long)init_file_modules_hook;
#endif
        }

        if (my_ncmp(name, "tCaptSeqTa", 10) == 0){
            *entry = (long)capt_seq_hook;
        }

#if CAM_CHDK_HAS_EXT_VIDEO_MENU
        if (my_ncmp(name, "tMovieReco", 10) == 0){
            *entry = (long)movie_record_hook;
        }
#endif

#if CAM_EXT_TV_RANGE
        if (my_ncmp(name, "tExpDrvTas", 10) == 0){
            *entry = (long)exp_drv_task;
        }
#endif

#if CAM_HAS_FILEWRITETASK_HOOK
        if (my_ncmp(name, "tFileWrite", 10) == 0){
            *entry = (long)filewritetask;
        }
#endif

// for cameras that have a "touch control dial" with 'TouchW' task.
// some cameras may use a different task name
#ifdef HOOK_TOUCHW
        if (my_ncmp(name, "tTouchW", 7) == 0){
            *entry = (long)my_touchw_task;
        }
#endif

        core_hook_task_create(pNewTcb);
    }
}

void deleteHook

(

void *

pTcb)

Definiert in Zeile 170 der Datei main.c.

{
    core_hook_task_delete(pTcb);
}

void h_usrInit

(

)

Definiert in Zeile 58 der Datei boot.c.

{
    asm volatile (
    "STR     LR, [SP,#-4]!\n"
    "BL      sub_FFC01968\n"
    "MOV     R0, #2\n"
    "MOV     R1, R0\n"
    "BL      sub_FFEE1E84\n"
    "BL      sub_FFED5174\n"
    "BL      sub_FFC011C4\n"
    "BL      sub_FFC01728\n"
    "LDR     LR, [SP],#4\n"
    "B       h_usrKernelInit\n"
    );
}

void h_usrKernelInit

(

)

Definiert in Zeile 74 der Datei boot.c.

{
    asm volatile (
    "STMFD   SP!, {R4,LR}\n"
    "SUB     SP, SP, #8\n"
    "BL      sub_FFEE2384\n"
    "BL      sub_FFEF516C\n"
    "LDR     R3, =0xC280\n"
    "LDR     R2, =0x986C0\n"
    "LDR     R1, [R3]\n"
    "LDR     R0, =0x9BA50\n"
    "MOV     R3, #0x100\n"
    "BL      sub_FFEEE27C\n"
    "LDR     R3, =0xC240\n"
    "LDR     R0, =0xCA88\n"
    "LDR     R1, [R3]\n"
    "BL      sub_FFEEE27C\n"
    "LDR     R3, =0xC2FC\n"
    "LDR     R0, =0x9BA24\n"
    "LDR     R1, [R3]\n"
    "BL      sub_FFEEE27C\n"
    "BL      sub_FFEF9528\n"
    "BL      sub_FFC012B0\n"
    "MOV     R4, #0\n"
    "MOV     R3, R0\n"
    "MOV     R12, #0x800\n"
    "LDR     R0, =h_usrRoot\n"
    "MOV     R1, #0x4000\n"
    );    
//  "LDR     R2, =0xCC090\n"    // 0x9C090 + 0x30000
    asm volatile (
        "LDR     R2, =new_sa\n"
        "LDR     R2, [R2]\n"
    );
    asm volatile (
    "STR     R12, [SP]\n"
    "STR     R4, [SP,#4]\n"
    "BL      sub_FFEF23AC\n"
    "ADD     SP, SP, #8\n"
    "LDMFD   SP!, {R4,PC}\n"
    );
}

void h_usrRoot

(

)

Definiert in Zeile 118 der Datei boot.c.

{
    asm volatile (
    "STMFD   SP!, {R4,R5,LR}\n"
    "MOV     R5, R0\n"
    "MOV     R4, R1\n"
    "BL      sub_FFC019D0\n"
    "MOV     R1, R4\n"
    "MOV     R0, R5\n"
    "BL      sub_FFEE7018\n"
    "MOV     R1, R4\n"
    "MOV     R0, R5\n"
    "BL      sub_FFEE7A90\n"
    "BL      sub_FFC01704\n"
    "BL      sub_FFC01A0C\n"
    "BL      sub_FFC019F0\n"
    "BL      sub_FFC01A38\n"
    "BL      sub_FFC019C4\n"
    );

    _taskCreateHookAdd(createHook);
    _taskDeleteHookAdd(deleteHook);

    drv_self_hide();

    asm volatile (
    "LDMFD   SP!, {R4,R5,LR}\n"
    "B       sub_FFC0136C\n"
    );
}

Variablen-Dokumentation

const char* const new_sa = &_end

Definiert in Zeile 5 der Datei boot.c.

long wrs_kernel_bss_end

long wrs_kernel_bss_start