char* chain_file_data = (char*)data;
// We copy because it's possible the payload will overwrite us in memory.
+ FILE* f;
char chain_file[256];
strncpy(chain_file, chain_file_data, 255);
- char code_file[] = PATH_BITS "/chain.bin";
-
- uint8_t* bootstrap = (uint8_t*)0x24F00000;
- uint32_t size = 0, b_size = 0;
- uint8_t* chain_data;
-
- FILE* f = cropen(code_file, "r");
- if (!f) {
- // File missing.
- panic("Missing chainloader.\n");
- }
-
- b_size = crsize(f);
- crread(bootstrap, 1, b_size, f);
- crclose(f);
-
- chain_data = bootstrap + b_size;
+ uint32_t size = 0;
+ uint8_t* chain_data = (uint8_t*)0x23F00000;
f = cropen(chain_file, "r");
if (!f) {
char* arg0 = (char*)&off[1];
memcpy(arg0, chain_file, strlen(chain_file) + 1);
- uint32_t* argc_off = (uint32_t*)memfind(bootstrap, b_size, "ARGC", 4);
- uint32_t* argv_off = (uint32_t*)memfind(bootstrap, b_size, "ARGV", 4);
-
- argc_off[0] = 1;
- argv_off[0] = (uint32_t)off;
-
fprintf(stderr, "Changing display mode and chainloading...\n");
- screen_mode(1); // TODO - Because RGBA8 screeninit is non-standard...ugh
+ screen_mode(1); // Because RGBA8 screeninit is non-standard...ugh
// Copy CakeHax struct where it is expected (at 0x23FFFE00)
// It's very very likely we'll corrupt memory with this, but we aren't coming back anyways as of the
// next call, so not my problem
memcpy((void*)0x23FFFE00, framebuffers, sizeof(struct framebuffers));
- ((void(*)(void*, uint32_t))0x24F00000)(chain_data, size + 256 + 8); // Size of payload + argv.
+ // TODO - TBH, I should really flush dcache and icache here
+
+ ((void(*)(int, char**))0x23F00000)(1, (char**)off);
while(1);
}
--- /dev/null
+/* Script for -z combreloc: combine and sort reloc sections */
+/* Copyright (C) 2014 Free Software Foundation, Inc.
+ Copying and distribution of this script, with or without modification,
+ are permitted in any medium without royalty provided the copyright
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+ "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
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+SECTIONS
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+ }
+ .rela.dyn :
+ {
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+ *(.rela.got)
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+ PROVIDE_HIDDEN (__rela_iplt_start = .);
+ *(.rela.iplt)
+ PROVIDE_HIDDEN (__rela_iplt_end = .);
+ }
+ .rel.plt :
+ {
+ *(.rel.plt)
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+ .rela.plt :
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+ /* Make sure the start.o entry is at the beginning since that's the default alh entry */
+ arm9loaderhax_entry :
+ {
+ KEEP (*(.text.start))
+ }
+ arm9loaderhax_screeninit (INFO):
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+ KEEP (*(screeninit))
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+ {
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+ .fini :
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+ .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) }
+ .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table
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+ /* These sections are generated by the Sun/Oracle C++ compiler. */
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+ .exception_ranges*) }
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. */
+ . = ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1));
+ /* Exception handling */
+ .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) }
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+ }
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+ KEEP (*(SORT(.fini_array.*)))
+ KEEP (*(.fini_array ))
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+ the constructors, so we make sure it is
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+ doesn't matter if the user does not
+ actually link against crtbegin.o; the
+ linker won't look for a file to match a
+ wildcard. The wildcard also means that it
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+ is in. */
+ KEEP (*crtbegin.o(.ctors))
+ KEEP (*crtbegin?.o(.ctors))
+ /* We don't want to include the .ctor section from
+ the crtend.o file until after the sorted ctors.
+ The .ctor section from the crtend file contains the
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+ KEEP (*(SORT(.ctors.*)))
+ KEEP (*(.ctors))
+ }
+ .dtors :
+ {
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*crtbegin?.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
+ KEEP (*(SORT(.dtors.*)))
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+ .jcr : { KEEP (*(.jcr)) }
+ .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
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+ .data :
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+ __data_start = . ;
+ *(.data .data.* .gnu.linkonce.d.*)
+ SORT(CONSTRUCTORS)
+ }
+ .data1 : { *(.data1) }
+ _edata = .; PROVIDE (edata = .);
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+ *(.bss .bss.* .gnu.linkonce.b.*)
+ *(COMMON)
+ /* Align here to ensure that the .bss section occupies space up to
+ _end. Align after .bss to ensure correct alignment even if the
+ .bss section disappears because there are no input sections.
+ FIXME: Why do we need it? When there is no .bss section, we don't
+ pad the .data section. */
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+ /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
+}
+
projects / corbenik / corbenik.git / commitdiff