X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4ecde0e1ff60d5e3d217dc1e5ca12c78864804cc..3acac886bc2e0b89723673968af21984aa15a073:/armsrc/start.c?ds=sidebyside diff --git a/armsrc/start.c b/armsrc/start.c index 3f5dc676..f1e58ab0 100644 --- a/armsrc/start.c +++ b/armsrc/start.c @@ -9,25 +9,77 @@ // with the linker script. //----------------------------------------------------------------------------- -#include "../include/proxmark3.h" +#include "proxmark3.h" #include "apps.h" +#include "zlib.h" +#include "BigBuf.h" + +static uint8_t *next_free_memory; +extern struct common_area common_area; +extern char __data_src_start__, __data_start__, __data_end__, __bss_start__, __bss_end__; + + +static voidpf inflate_malloc(voidpf opaque, uInt items, uInt size) +{ + uint8_t *allocated_memory; + + allocated_memory = next_free_memory; + next_free_memory += items*size; + return allocated_memory; +} + + +static void inflate_free(voidpf opaque, voidpf address) +{ + // nothing to do + +} + +static void uncompress_data_section(void) +{ + z_stream data_section; + + next_free_memory = BigBuf_get_addr(); + + // initialize zstream structure + data_section.next_in = (uint8_t *) &__data_src_start__; + data_section.avail_in = &__data_end__ - &__data_start__; // uncompressed size. Wrong but doesn't matter. + data_section.next_out = (uint8_t *) &__data_start__; + data_section.avail_out = &__data_end__ - &__data_start__; // uncompressed size. Correct. + data_section.zalloc = &inflate_malloc; + data_section.zfree = &inflate_free; + data_section.opaque = NULL; + + // initialize zlib for inflate + inflateInit2(&data_section, 15); + + // uncompress data segment to RAM + inflate(&data_section, Z_FINISH); + + // save the size of the compressed data section + common_area.arg1 = data_section.total_in; +} + -extern char __data_start__, __data_src_start__, __data_end__, __bss_start__, __bss_end__; void __attribute__((section(".startos"))) Vector(void) { /* Stack should have been set up by the bootloader */ - char *src, *dst, *end; + // char *src; + char *dst, *end; + + uncompress_data_section(); /* Set up (that is: clear) BSS. */ dst = &__bss_start__; end = &__bss_end__; while(dst < end) *dst++ = 0; - /* Set up data segment: Copy from flash to ram */ - src = &__data_src_start__; - dst = &__data_start__; - end = &__data_end__; - while(dst < end) *dst++ = *src++; + // Set up data segment: Copy from flash to ram + // src = &__data_src_start__; + // dst = &__data_start__; + // end = &__data_end__; + // while(dst < end) *dst++ = *src++; + AppMain(); }