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kernel .crt0 in .rodata reacts only (support for 17.0.0 pk21)
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parent
8017a7a6b6
commit
1d64a83450
2 changed files with 54 additions and 7 deletions
60
packages.c
60
packages.c
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@ -307,7 +307,22 @@ void pk11_save(pk11_ctx_t *ctx) {
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}
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}
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static bool pk21_is_valid_kernel_map(const kernel_map_t *map, uint32_t max_size) {
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static bool pk21_is_valid_kernel_map(const kernel_map_t *raw_map, uint32_t max_size, uint32_t adj) {
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kernel_map_t adjusted_map = *raw_map;
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adjusted_map.text_start_offset += adj;
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adjusted_map.text_end_offset += adj;
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adjusted_map.rodata_start_offset += adj;
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adjusted_map.rodata_end_offset += adj;
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adjusted_map.data_start_offset += adj;
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adjusted_map.data_end_offset += adj;
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adjusted_map.bss_start_offset += adj;
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adjusted_map.bss_end_offset += adj;
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adjusted_map.ini1_start_offset += adj;
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adjusted_map.dynamic_offset += adj;
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adjusted_map.init_array_start_offset += adj;
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adjusted_map.init_array_end_offset += adj;
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const kernel_map_t *map = &adjusted_map;
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if (map->text_start_offset != 0) return false;
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if (map->text_start_offset >= map->text_end_offset) return false;
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if (map->text_end_offset & 0xFFF) return false;
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@ -424,14 +439,45 @@ void pk21_process(pk21_ctx_t *ctx) {
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ctx->ini1_ctx.header = (ini1_header_t *)(ctx->sections + ctx->header.section_sizes[0]);
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} else {
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ctx->ini1_ctx.header = calloc(1, sizeof(ini1_header_t));
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for (offset = 0; offset < 0x1000; offset += 4) {
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kernel_map_t *kernel_map = (kernel_map_t *)(ctx->sections + offset);
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if (pk21_is_valid_kernel_map(kernel_map, ctx->header.section_sizes[0]) && *(const uint32_t *)(ctx->sections + kernel_map->ini1_start_offset) == MAGIC_INI1) {
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ctx->kernel_map = kernel_map;
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ctx->ini1_ctx.header = (ini1_header_t *)(ctx->sections + ctx->kernel_map->ini1_start_offset);
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break;
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/* 17.0.0+ branch-to-rodata */
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if (((*(const uint64_t *)ctx->sections) & UINT64_C(0xFFFFFFFFFF000000)) == UINT64_C(0x0000000014000000)) {
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uint32_t branch_target = ((*(const uint32_t *)ctx->sections) & 0x00FFFFFF) << 2;
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for (offset = branch_target; offset < branch_target + 0x1000; offset += 4) {
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kernel_map_t *kernel_map = (kernel_map_t *)(ctx->sections + offset);
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if (pk21_is_valid_kernel_map(kernel_map, ctx->header.section_sizes[0], offset) && *(const uint32_t *)(ctx->sections + offset + kernel_map->ini1_start_offset) == MAGIC_INI1) {
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ctx->kernel_map = calloc(1, sizeof(kernel_map_t));
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*(ctx->kernel_map) = *kernel_map;
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ctx->kernel_map->text_start_offset += offset;
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ctx->kernel_map->text_end_offset += offset;
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ctx->kernel_map->rodata_start_offset += offset;
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ctx->kernel_map->rodata_end_offset += offset;
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ctx->kernel_map->data_start_offset += offset;
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ctx->kernel_map->data_end_offset += offset;
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ctx->kernel_map->bss_start_offset += offset;
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ctx->kernel_map->bss_end_offset += offset;
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ctx->kernel_map->ini1_start_offset += offset;
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ctx->kernel_map->dynamic_offset += offset;
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ctx->kernel_map->init_array_start_offset += offset;
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ctx->kernel_map->init_array_end_offset += offset;
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ctx->kernel_map->system_registers_offset += offset;
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ctx->ini1_ctx.header = (ini1_header_t *)(ctx->sections + ctx->kernel_map->ini1_start_offset);
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break;
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}
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}
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} else {
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for (offset = 0; offset < 0x1000; offset += 4) {
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kernel_map_t *kernel_map = (kernel_map_t *)(ctx->sections + offset);
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if (pk21_is_valid_kernel_map(kernel_map, ctx->header.section_sizes[0], 0) && *(const uint32_t *)(ctx->sections + kernel_map->ini1_start_offset) == MAGIC_INI1) {
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ctx->kernel_map = kernel_map;
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ctx->ini1_ctx.header = (ini1_header_t *)(ctx->sections + ctx->kernel_map->ini1_start_offset);
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break;
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}
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}
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}
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}
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if (ctx->ini1_ctx.header->magic == MAGIC_INI1 && ctx->ini1_ctx.header->num_processes <= INI1_MAX_KIPS) {
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offset = 0;
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@ -209,6 +209,7 @@ typedef struct {
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uint32_t dynamic_offset;
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uint32_t init_array_start_offset;
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uint32_t init_array_end_offset;
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uint32_t system_registers_offset; /* 17.0.0+ */
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} kernel_map_t;
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typedef struct {
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