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Move the wumsrelocator to 0x00800000

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Maschell 2024-04-20 10:00:58 +02:00
parent 40420432e2
commit e237ba6e8c
2 changed files with 9 additions and 7 deletions
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12
wumsloader/src/globals.h
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@ -17,15 +17,17 @@ extern std::vector<void *> gAllocatedAddresses;
#define MEMORY_REGION_START 0x00800000
#define MEMORY_REGION_SIZE 0x00800000
#define CUSTOM_RPX_LOADER_RETURN_CODE 0x00009000 // We have to skip the first 0x00009000 bytes because it's still used
#define RELOCATOR_SIZE 0x52000 // Maximum size of the wumsloader, needs to match the one defined in link.ld
#define ENVIRONMENT_PATH_LENGTH 0x100 // Length of the EnvironmentPath.
#define MEMORY_REGION_USABLE_MEM_REGION_END_LENGTH 0x04 // sizeof(uint32_t)
#define RELOCATOR_SIZE 0x50000 // Maximum size of the wumsloader, needs to match the one defined in link.ld
#define ENVIRONMENT_PATH_LENGTH 0x100 // Length of the EnvironmentPath.
#define MEMORY_REGION_USABLE_MEM_REGION_END_LENGTH 0x04 // sizeof(uint32_t)
#define MEMORY_REGION_ENVIRONMENT_STRING_ADRR (MEMORY_REGION_START + CUSTOM_RPX_LOADER_RETURN_CODE + RELOCATOR_SIZE)
#define MEMORY_REGION_ENVIRONMENT_STRING_ADRR (MEMORY_REGION_START + RELOCATOR_SIZE)
#define MEMORY_REGION_USABLE_MEM_REGION_END_VALUE_PTR ((uint32_t *) (MEMORY_REGION_ENVIRONMENT_STRING_ADRR + ENVIRONMENT_PATH_LENGTH))
#define MEMORY_REGION_USABLE_MEM_REGION_END_VALUE (*MEMORY_REGION_USABLE_MEM_REGION_END_VALUE_PTR)
// Technically we overwrite the CustomRPXLoader that is still loaded at 0x00800000...
// We can get away with it because the EnvironmentLoader exits instead of returning to the CustomRPXLoader.
#define MEMORY_REGION_USABLE_HEAP_START ((uint32_t) MEMORY_REGION_USABLE_MEM_REGION_END_VALUE_PTR + MEMORY_REGION_USABLE_MEM_REGION_END_LENGTH)
#define MEMORY_REGION_USABLE_HEAP_END MEMORY_REGION_USABLE_MEM_REGION_END_VALUE

4
wumsloader/src/link.ld
View File

@ -3,7 +3,7 @@ OUTPUT(loader.elf);
ENTRY(_start);
SECTIONS {
. = 0x00809000;
. = 0x00800000;
.text ALIGN(32) : {
KEEP (*(.crt0))
KEEP (*(SORT_NONE(.init)))
@ -92,4 +92,4 @@ SECTIONS {
}
}
ASSERT((SIZEOF(.text) + SIZEOF(.data) + SIZEOF(.rodata) + SIZEOF(.eh_frame) + SIZEOF(.bss)) < 0x52000, "Memory overlapping with modules.");
ASSERT((SIZEOF(.text) + SIZEOF(.data) + SIZEOF(.rodata) + SIZEOF(.eh_frame) + SIZEOF(.bss)) < 0x50000, "Memory overlapping with modules.");