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https://github.com/RfidResearchGroup/proxmark3.git
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83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
//-----------------------------------------------------------------------------
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// Jonathan Westhues, Mar 2006
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Just vector to AppMain(). This is in its own file so that I can place it
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// with the linker script.
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//-----------------------------------------------------------------------------
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#ifndef __START_H
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#define __START_H
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#include "proxmark3.h"
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#include "apps.h"
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#include "zlib.h"
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#include "BigBuf.h"
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static uint8_t *next_free_memory;
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extern struct common_area common_area;
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extern char __data_src_start__, __data_start__, __data_end__, __bss_start__, __bss_end__;
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static voidpf inflate_malloc(voidpf opaque, uInt items, uInt size) {
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uint8_t *allocated_memory;
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allocated_memory = next_free_memory;
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next_free_memory += items * size;
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return allocated_memory;
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}
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static void inflate_free(voidpf opaque, voidpf address) {
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// nothing to do
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}
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static void uncompress_data_section(void) {
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z_stream data_section;
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next_free_memory = BigBuf_get_addr();
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// initialize zstream structure
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data_section.next_in = (uint8_t *) &__data_src_start__;
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data_section.avail_in = &__data_end__ - &__data_start__; // uncompressed size. Wrong but doesn't matter.
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data_section.next_out = (uint8_t *) &__data_start__;
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data_section.avail_out = &__data_end__ - &__data_start__; // uncompressed size. Correct.
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data_section.zalloc = &inflate_malloc;
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data_section.zfree = &inflate_free;
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data_section.opaque = NULL;
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// initialize zlib for inflate
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int res = inflateInit2(&data_section, 15);
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if (res < 0)
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return;
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// uncompress data segment to RAM
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inflate(&data_section, Z_FINISH);
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// save the size of the compressed data section
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common_area.arg1 = data_section.total_in;
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}
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void __attribute__((section(".startos"))) Vector(void) {
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/* Stack should have been set up by the bootloader */
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// char *src;
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char *dst, *end;
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uncompress_data_section();
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/* Set up (that is: clear) BSS. */
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dst = &__bss_start__;
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end = &__bss_end__;
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while (dst < end) *dst++ = 0;
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// Set up data segment: Copy from flash to ram
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// src = &__data_src_start__;
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// dst = &__data_start__;
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// end = &__data_end__;
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// while(dst < end) *dst++ = *src++;
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AppMain();
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}
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#endif
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