| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <assert.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <stdbool.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| #include <stddef.h> |
| #include <errno.h> |
| |
| #include <nanohub/nanohub.h> |
| #include <nanohub/nanoapp.h> |
| #include <nanohub/appRelocFormat.h> |
| |
| //This code assumes it is run on a LE CPU with unaligned access abilities. Sorry. |
| |
| #define FLASH_BASE 0x10000000 |
| #define RAM_BASE 0x80000000 |
| |
| #define FLASH_SIZE 0x10000000 //256MB ought to be enough for everyone |
| #define RAM_SIZE 0x10000000 //256MB ought to be enough for everyone |
| |
| //caution: double evaluation |
| #define IS_IN_RANGE_E(_val, _rstart, _rend) (((_val) >= (_rstart)) && ((_val) < (_rend))) |
| #define IS_IN_RANGE(_val, _rstart, _rsz) IS_IN_RANGE_E((_val), (_rstart), ((_rstart) + (_rsz))) |
| #define IS_IN_RAM(_val) IS_IN_RANGE(_val, RAM_BASE, RAM_SIZE) |
| #define IS_IN_FLASH(_val) IS_IN_RANGE(_val, FLASH_BASE, FLASH_SIZE) |
| |
| |
| #define NANO_RELOC_TYPE_RAM 0 |
| #define NANO_RELOC_TYPE_FLASH 1 |
| #define NANO_RELOC_LAST 2 //must be <= (RELOC_TYPE_MASK >> RELOC_TYPE_SHIFT) |
| |
| struct RelocEntry { |
| uint32_t where; |
| uint32_t info; //bottom 8 bits is type, top 24 is sym idx |
| }; |
| |
| #define RELOC_TYPE_ABS_S 2 |
| #define RELOC_TYPE_ABS_D 21 |
| #define RELOC_TYPE_SECT 23 |
| |
| |
| struct SymtabEntry { |
| uint32_t a; |
| uint32_t addr; |
| uint32_t b, c; |
| }; |
| |
| struct NanoRelocEntry { |
| uint32_t ofstInRam; |
| uint8_t type; |
| }; |
| |
| struct NanoAppInfo { |
| union { |
| struct BinHdr *bin; |
| uint8_t *data; |
| }; |
| size_t dataSizeUsed; |
| size_t dataSizeAllocated; |
| size_t codeAndDataSize; // not including symbols, relocs and BinHdr |
| size_t codeAndRoDataSize; // also not including GOT & RW data in flash |
| struct SymtabEntry *symtab; |
| size_t symtabSize; // number of symbols |
| struct RelocEntry *reloc; |
| size_t relocSize; // number of reloc entries |
| struct NanoRelocEntry *nanoReloc; |
| size_t nanoRelocSize; // number of nanoReloc entries <= relocSize |
| uint8_t *packedNanoReloc; |
| size_t packedNanoRelocSize; |
| |
| bool debug; |
| }; |
| |
| #ifndef ARRAY_SIZE |
| #define ARRAY_SIZE(ary) (sizeof(ary) / sizeof((ary)[0])) |
| #endif |
| |
| static FILE *stdlog = NULL; |
| |
| #define DBG(fmt, ...) fprintf(stdlog, fmt "\n", ##__VA_ARGS__) |
| #define ERR(fmt, ...) fprintf(stderr, fmt "\n", ##__VA_ARGS__) |
| |
| static void fatalUsage(const char *name, const char *msg, const char *arg) |
| { |
| if (msg && arg) |
| ERR("Error: %s: %s\n", msg, arg); |
| else if (msg) |
| ERR("Error: %s\n", msg); |
| |
| ERR("USAGE: %s [-v] [-k <key id>] [-a <app id>] [-r] [-n <layout name>] [-i <layout id>] <input file> [<output file>]\n" |
| " -v : be verbose\n" |
| " -n <layout name> : app, os, key\n" |
| " -i <layout id> : 1 (app), 2 (key), 3 (os)\n" |
| " -f <layout flags>: 16-bit hex value, stored as layout-specific flags\n" |
| " -a <app ID> : 64-bit hex number != 0\n" |
| " -k <key ID> : 64-bit hex number != 0\n" |
| " -r : bare (no AOSP header); used only for inner OS image generation\n" |
| " layout ID and layout name control the same parameter, so only one of them needs to be used\n" |
| , name); |
| exit(1); |
| } |
| |
| bool packNanoRelocs(struct NanoAppInfo *app) |
| { |
| size_t i, j, k; |
| uint8_t *packedNanoRelocs; |
| uint32_t packedNanoRelocSz; |
| uint32_t lastOutType = 0, origin = 0; |
| bool verbose = app->debug; |
| |
| //sort by type and then offset |
| for (i = 0; i < app->nanoRelocSize; i++) { |
| struct NanoRelocEntry t; |
| |
| for (k = i, j = k + 1; j < app->nanoRelocSize; j++) { |
| if (app->nanoReloc[j].type > app->nanoReloc[k].type) |
| continue; |
| if ((app->nanoReloc[j].type < app->nanoReloc[k].type) || (app->nanoReloc[j].ofstInRam < app->nanoReloc[k].ofstInRam)) |
| k = j; |
| } |
| memcpy(&t, app->nanoReloc + i, sizeof(struct NanoRelocEntry)); |
| memcpy(app->nanoReloc + i, app->nanoReloc + k, sizeof(struct NanoRelocEntry)); |
| memcpy(app->nanoReloc + k, &t, sizeof(struct NanoRelocEntry)); |
| |
| if (app->debug) |
| DBG("SortedReloc[%3zu] = {0x%08" PRIX32 ",0x%02" PRIX8 "}", i, app->nanoReloc[i].ofstInRam, app->nanoReloc[i].type); |
| } |
| |
| //produce output nanorelocs in packed format |
| packedNanoRelocs = malloc(app->nanoRelocSize * 6); //definitely big enough |
| packedNanoRelocSz = 0; |
| |
| if (!packedNanoRelocs) { |
| ERR("Failed to allocate memory for packed relocs"); |
| return false; |
| } |
| |
| for (i = 0; i < app->nanoRelocSize; i++) { |
| uint32_t displacement; |
| |
| if (lastOutType != app->nanoReloc[i].type) { //output type if ti changed |
| if (app->nanoReloc[i].type - lastOutType == 1) { |
| packedNanoRelocs[packedNanoRelocSz++] = TOKEN_RELOC_TYPE_NEXT; |
| if (verbose) |
| DBG("Out: RelocTC [size 1] // to 0x%02" PRIX8, app->nanoReloc[i].type); |
| } else { |
| packedNanoRelocs[packedNanoRelocSz++] = TOKEN_RELOC_TYPE_CHG; |
| packedNanoRelocs[packedNanoRelocSz++] = app->nanoReloc[i].type - lastOutType - 1; |
| if (verbose) |
| DBG("Out: RelocTC [size 2] (0x%02" PRIX8 ") // to 0x%02" PRIX8, |
| (uint8_t)(app->nanoReloc[i].type - lastOutType - 1), app->nanoReloc[i].type); |
| } |
| lastOutType = app->nanoReloc[i].type; |
| origin = 0; |
| } |
| displacement = app->nanoReloc[i].ofstInRam - origin; |
| origin = app->nanoReloc[i].ofstInRam + 4; |
| if (displacement & 3) { |
| ERR("Unaligned relocs are not possible!"); |
| return false; |
| } |
| displacement /= 4; |
| |
| //might be start of a run. look into that |
| if (!displacement) { |
| for (j = 1; (j + i) < app->nanoRelocSize && j < MAX_RUN_LEN && |
| app->nanoReloc[j + i].type == lastOutType && |
| (app->nanoReloc[j + i].ofstInRam - app->nanoReloc[j + i - 1].ofstInRam) == 4; j++); |
| if (j >= MIN_RUN_LEN) { |
| if (verbose) |
| DBG("Out: Reloc0 [size 2]; repeat=%zu", j); |
| packedNanoRelocs[packedNanoRelocSz++] = TOKEN_CONSECUTIVE; |
| packedNanoRelocs[packedNanoRelocSz++] = j - MIN_RUN_LEN; |
| origin = app->nanoReloc[j + i - 1].ofstInRam + 4; //reset origin to last one |
| i += j - 1; //loop will increment anyways, hence +1 |
| continue; |
| } |
| } |
| |
| //produce output |
| if (displacement <= MAX_8_BIT_NUM) { |
| if (verbose) |
| DBG("Out: Reloc8 [size 1] 0x%02" PRIX32, displacement); |
| packedNanoRelocs[packedNanoRelocSz++] = displacement; |
| } else if (displacement <= MAX_16_BIT_NUM) { |
| if (verbose) |
| DBG("Out: Reloc16 [size 3] 0x%06" PRIX32, displacement); |
| displacement -= MAX_8_BIT_NUM; |
| packedNanoRelocs[packedNanoRelocSz++] = TOKEN_16BIT_OFST; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement >> 8; |
| } else if (displacement <= MAX_24_BIT_NUM) { |
| if (verbose) |
| DBG("Out: Reloc24 [size 4] 0x%08" PRIX32, displacement); |
| displacement -= MAX_16_BIT_NUM; |
| packedNanoRelocs[packedNanoRelocSz++] = TOKEN_24BIT_OFST; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement >> 8; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement >> 16; |
| } else { |
| if (verbose) |
| DBG("Out: Reloc32 [size 5] 0x%08" PRIX32, displacement); |
| packedNanoRelocs[packedNanoRelocSz++] = TOKEN_32BIT_OFST; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement >> 8; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement >> 16; |
| packedNanoRelocs[packedNanoRelocSz++] = displacement >> 24; |
| } |
| } |
| |
| app->packedNanoReloc = packedNanoRelocs; |
| app->packedNanoRelocSize = packedNanoRelocSz; |
| |
| return true; |
| } |
| |
| static int finalizeAndWrite(struct NanoAppInfo *inf, FILE *out, uint32_t layoutFlags, uint64_t appId) |
| { |
| bool good = true; |
| struct AppInfo app; |
| struct SectInfo *sect; |
| struct BinHdr *bin = inf->bin; |
| struct ImageHeader outHeader = { |
| .aosp = (struct nano_app_binary_t) { |
| .header_version = 1, |
| .magic = NANOAPP_AOSP_MAGIC, |
| .app_id = appId, |
| .app_version = bin->hdr.appVer, |
| .flags = 0, // encrypted (1), signed (2) (will be set by other tools) |
| }, |
| .layout = (struct ImageLayout) { |
| .magic = GOOGLE_LAYOUT_MAGIC, |
| .version = 1, |
| .payload = LAYOUT_APP, |
| .flags = layoutFlags, |
| }, |
| }; |
| |
| app.sect = bin->sect; |
| app.vec = bin->vec; |
| sect = &app.sect; |
| |
| //if we have any bytes to output, show stats |
| if (inf->codeAndRoDataSize) { |
| size_t binarySize = 0; |
| size_t gotSz = sect->got_end - sect->data_start; |
| size_t bssSz = sect->bss_end - sect->bss_start; |
| |
| good = fwrite(&outHeader, sizeof(outHeader), 1, out) == 1 && good; |
| binarySize += sizeof(outHeader); |
| |
| good = fwrite(&app, sizeof(app), 1, out) == 1 && good; |
| binarySize += sizeof(app); |
| |
| good = fwrite(&bin[1], inf->codeAndDataSize, 1, out) == 1 && good; |
| binarySize += inf->codeAndDataSize; |
| |
| if (inf->packedNanoReloc && inf->packedNanoRelocSize) { |
| good = fwrite(inf->packedNanoReloc, inf->packedNanoRelocSize, 1, out) == 1 && good; |
| binarySize += inf->packedNanoRelocSize; |
| } |
| |
| if (!good) { |
| ERR("Failed to write output file: %s\n", strerror(errno)); |
| } else { |
| DBG("Final binary size %zu bytes", binarySize); |
| DBG(""); |
| DBG(" FW header size (flash): %6zu bytes", FLASH_RELOC_OFFSET); |
| DBG(" Code + RO data (flash): %6zu bytes", inf->codeAndRoDataSize); |
| DBG(" Relocs (flash): %6zu bytes", inf->packedNanoRelocSize); |
| DBG(" GOT + RW data (flash & RAM): %6zu bytes", gotSz); |
| DBG(" BSS (RAM): %6zu bytes", bssSz); |
| DBG(""); |
| DBG("Runtime flash use: %zu bytes", |
| (size_t)(inf->codeAndRoDataSize + inf->packedNanoRelocSize + gotSz + FLASH_RELOC_OFFSET)); |
| DBG("Runtime RAM use: %zu bytes", gotSz + bssSz); |
| } |
| } |
| |
| return good ? 0 : 2; |
| } |
| |
| // Subtracts the fixed memory region offset from an absolute address and returns |
| // the associated NANO_RELOC_* value, or NANO_RELOC_LAST if the address is not |
| // in the expected range. |
| static uint8_t fixupAddress(uint32_t *addr, struct SymtabEntry *sym, bool debug) |
| { |
| uint8_t type; |
| uint32_t old = *addr; |
| |
| (*addr) += sym->addr; |
| // TODO: this assumes that the host running this tool has the same |
| // endianness as the image file/target processor |
| if (IS_IN_RAM(*addr)) { |
| *addr -= RAM_BASE; |
| type = NANO_RELOC_TYPE_RAM; |
| if (debug) |
| DBG("Fixup addr 0x%08" PRIX32 " (RAM) --> 0x%08" PRIX32, old, *addr); |
| } else if (IS_IN_FLASH(*addr)) { |
| *addr -= FLASH_BASE + BINARY_RELOC_OFFSET; |
| type = NANO_RELOC_TYPE_FLASH; |
| if (debug) |
| DBG("Fixup addr 0x%08" PRIX32 " (FLASH) --> 0x%08" PRIX32, old, *addr); |
| } else { |
| ERR("Error: invalid address 0x%08" PRIX32, *addr); |
| type = NANO_RELOC_LAST; |
| } |
| |
| return type; |
| } |
| |
| static void relocDiag(const struct NanoAppInfo *app, const struct RelocEntry *reloc, const char *msg) |
| { |
| size_t symIdx = reloc->info >> 8; |
| uint8_t symType = reloc->info; |
| |
| ERR("Reloc %zu %s", reloc - app->reloc, msg); |
| ERR("INFO:"); |
| ERR(" Where: 0x%08" PRIX32, reloc->where); |
| ERR(" type: %" PRIu8, symType); |
| ERR(" sym: %zu", symIdx); |
| if (symIdx < app->symtabSize) { |
| struct SymtabEntry *sym = &app->symtab[symIdx]; |
| ERR(" addr: %" PRIu32, sym->addr); |
| } else { |
| ERR(" addr: <invalid>"); |
| } |
| } |
| |
| static uint8_t fixupReloc(struct NanoAppInfo *app, struct RelocEntry *reloc, |
| struct SymtabEntry *sym, struct NanoRelocEntry *nanoReloc) |
| { |
| uint8_t type; |
| uint32_t *addr; |
| uint32_t relocOffset = reloc->where; |
| uint32_t flashDataOffset = 0; |
| |
| if (IS_IN_FLASH(relocOffset)) { |
| relocOffset -= FLASH_BASE; |
| flashDataOffset = 0; |
| } else if (IS_IN_RAM(reloc->where)) { |
| relocOffset = reloc->where - RAM_BASE; |
| flashDataOffset = app->bin->sect.data_data - FLASH_BASE; |
| } else { |
| relocDiag(app, reloc, "is neither in RAM nor in FLASH"); |
| return NANO_RELOC_LAST; |
| } |
| |
| addr = (uint32_t*)(app->data + flashDataOffset + relocOffset); |
| |
| if (flashDataOffset + relocOffset >= app->dataSizeUsed - sizeof(*addr)) { |
| relocDiag(app, reloc, "points outside valid data area"); |
| return NANO_RELOC_LAST; |
| } |
| |
| switch (reloc->info & 0xFF) { |
| case RELOC_TYPE_ABS_S: |
| case RELOC_TYPE_ABS_D: |
| type = fixupAddress(addr, sym, app->debug); |
| break; |
| |
| case RELOC_TYPE_SECT: |
| if (sym->addr) { |
| relocDiag(app, reloc, "has section relocation with non-zero symbol address"); |
| return NANO_RELOC_LAST; |
| } |
| type = fixupAddress(addr, sym, app->debug); |
| break; |
| default: |
| relocDiag(app, reloc, "has unknown type"); |
| type = NANO_RELOC_LAST; |
| } |
| |
| if (nanoReloc && type != NANO_RELOC_LAST) { |
| nanoReloc->ofstInRam = relocOffset; |
| nanoReloc->type = type; |
| } |
| |
| return type; |
| } |
| |
| static int handleApp(uint8_t **pbuf, uint32_t bufUsed, FILE *out, uint32_t layoutFlags, uint64_t appId, bool verbose) |
| { |
| uint32_t i; |
| struct BinHdr *bin; |
| int ret = -1; |
| struct SectInfo *sect; |
| uint8_t *buf = *pbuf; |
| uint32_t bufSz = bufUsed * 3 /2; |
| struct NanoAppInfo app; |
| |
| //make buffer 50% bigger than bufUsed in case relocs grow out of hand |
| buf = reallocOrDie(buf, bufSz); |
| *pbuf = buf; |
| |
| //sanity checks |
| bin = (struct BinHdr*)buf; |
| if (bufUsed < sizeof(*bin)) { |
| ERR("File size too small: %" PRIu32, bufUsed); |
| goto out; |
| } |
| |
| if (bin->hdr.magic != NANOAPP_FW_MAGIC) { |
| ERR("Magic value is wrong: found %08" PRIX32"; expected %08" PRIX32, bin->hdr.magic, NANOAPP_FW_MAGIC); |
| goto out; |
| } |
| |
| sect = &bin->sect; |
| |
| if (!IS_IN_FLASH(sect->rel_start) || !IS_IN_FLASH(sect->rel_end) || !IS_IN_FLASH(sect->data_data)) { |
| ERR("relocation data or initialized data is not in FLASH"); |
| goto out; |
| } |
| if (!IS_IN_RAM(sect->data_start) || !IS_IN_RAM(sect->data_end) || !IS_IN_RAM(sect->bss_start) || |
| !IS_IN_RAM(sect->bss_end) || !IS_IN_RAM(sect->got_start) || !IS_IN_RAM(sect->got_end)) { |
| ERR("data, bss, or got not in ram\n"); |
| goto out; |
| } |
| |
| //do some math |
| app.reloc = (struct RelocEntry*)(buf + sect->rel_start - FLASH_BASE); |
| app.symtab = (struct SymtabEntry*)(buf + sect->rel_end - FLASH_BASE); |
| app.relocSize = (sect->rel_end - sect->rel_start) / sizeof(struct RelocEntry); |
| app.nanoRelocSize = 0; |
| app.symtabSize = (struct SymtabEntry*)(buf + bufUsed) - app.symtab; |
| app.data = buf; |
| app.dataSizeAllocated = bufSz; |
| app.dataSizeUsed = bufUsed; |
| app.codeAndRoDataSize = sect->data_data - FLASH_BASE - sizeof(*bin); |
| app.codeAndDataSize = sect->rel_start - FLASH_BASE - sizeof(*bin); |
| app.debug = verbose; |
| app.nanoReloc = NULL; |
| app.packedNanoReloc = NULL; |
| |
| //sanity |
| if (app.relocSize * sizeof(struct RelocEntry) + sect->rel_start != sect->rel_end) { |
| ERR("Relocs of nonstandard size"); |
| goto out; |
| } |
| if (app.symtabSize * sizeof(struct SymtabEntry) + sect->rel_end != bufUsed + FLASH_BASE) { |
| ERR("Syms of nonstandard size"); |
| goto out; |
| } |
| |
| //show some info |
| |
| if (verbose) |
| DBG("Found %zu relocs and a %zu-entry symbol table", app.relocSize, app.symtabSize); |
| |
| //handle relocs |
| app.nanoReloc = malloc(sizeof(struct NanoRelocEntry[app.relocSize])); |
| if (!app.nanoReloc) { |
| ERR("Failed to allocate a nano-reloc table\n"); |
| goto out; |
| } |
| |
| for (i = 0; i < app.relocSize; i++) { |
| struct RelocEntry *reloc = &app.reloc[i]; |
| struct NanoRelocEntry *nanoReloc = &app.nanoReloc[app.nanoRelocSize]; |
| uint32_t relocType = reloc->info & 0xff; |
| uint32_t whichSym = reloc->info >> 8; |
| struct SymtabEntry *sym = &app.symtab[whichSym]; |
| |
| if (whichSym >= app.symtabSize) { |
| relocDiag(&app, reloc, "references a nonexistent symbol"); |
| goto out; |
| } |
| |
| if (verbose) { |
| const char *seg; |
| |
| if (IS_IN_RANGE_E(reloc->where, sect->bss_start, sect->bss_end)) |
| seg = ".bss"; |
| else if (IS_IN_RANGE_E(reloc->where, sect->data_start, sect->data_end)) |
| seg = ".data"; |
| else if (IS_IN_RANGE_E(reloc->where, sect->got_start, sect->got_end)) |
| seg = ".got"; |
| else if (IS_IN_RANGE_E(reloc->where, FLASH_BASE, FLASH_BASE + sizeof(struct BinHdr))) |
| seg = "APPHDR"; |
| else |
| seg = "???"; |
| |
| DBG("Reloc[%3" PRIu32 "]:\n {@0x%08" PRIX32 ", type %3" PRIu32 ", -> sym[%3" PRIu32 "]: {@0x%08" PRIX32 "}, in %s}", |
| i, reloc->where, reloc->info & 0xff, whichSym, sym->addr, seg); |
| } |
| /* handle relocs inside the header */ |
| if (IS_IN_FLASH(reloc->where) && reloc->where - FLASH_BASE < sizeof(struct BinHdr) && relocType == RELOC_TYPE_SECT) { |
| /* relocs in header are special - runtime corrects for them */ |
| // binary header generated by objcopy, .napp header and final FW header in flash are of different layout and size. |
| // we subtract binary header offset here, so all the entry points are relative to beginning of "sect". |
| // FW will use § as a base to call these vectors; no more problems with different header sizes; |
| // Assumption: offsets between sect & vec, vec & code are the same in all images (or, in a simpler words, { sect, vec, code } |
| // must go together). this is enforced by linker script, and maintained by all tools and FW download code in the OS. |
| |
| switch (fixupReloc(&app, reloc, sym, NULL)) { |
| case NANO_RELOC_TYPE_RAM: |
| relocDiag(&app, reloc, "is in APPHDR but relocated to RAM"); |
| goto out; |
| case NANO_RELOC_TYPE_FLASH: |
| break; |
| default: |
| // other error happened; it is already reported |
| goto out; |
| } |
| |
| if (verbose) |
| DBG(" -> Nano reloc skipped for in-header reloc"); |
| |
| continue; /* do not produce an output reloc */ |
| } |
| |
| // any other relocs may only happen in RAM |
| if (!IS_IN_RAM(reloc->where)) { |
| relocDiag(&app, reloc, "is not in RAM"); |
| goto out; |
| } |
| |
| if (fixupReloc(&app, reloc, sym, nanoReloc) != NANO_RELOC_LAST) { |
| app.nanoRelocSize++; |
| if (verbose) |
| DBG(" -> Nano reloc calculated as 0x%08" PRIX32 ",0x%02" PRIX8 "\n", nanoReloc->ofstInRam, nanoReloc->type); |
| } |
| } |
| |
| if (!packNanoRelocs(&app)) |
| goto out; |
| |
| // we're going to write packed relocs; set correct size |
| sect->rel_end = sect->rel_start + app.packedNanoRelocSize; |
| |
| //adjust headers for easy access (RAM) |
| sect->data_start -= RAM_BASE; |
| sect->data_end -= RAM_BASE; |
| sect->bss_start -= RAM_BASE; |
| sect->bss_end -= RAM_BASE; |
| sect->got_start -= RAM_BASE; |
| sect->got_end -= RAM_BASE; |
| |
| //adjust headers for easy access (FLASH) |
| sect->data_data -= FLASH_BASE + BINARY_RELOC_OFFSET; |
| sect->rel_start -= FLASH_BASE + BINARY_RELOC_OFFSET; |
| sect->rel_end -= FLASH_BASE + BINARY_RELOC_OFFSET; |
| |
| ret = finalizeAndWrite(&app, out, layoutFlags, appId); |
| out: |
| free(app.nanoReloc); |
| free(app.packedNanoReloc); |
| return ret; |
| } |
| |
| static int handleKey(uint8_t **pbuf, uint32_t bufUsed, FILE *out, uint32_t layoutFlags, uint64_t appId, uint64_t keyId) |
| { |
| uint8_t *buf = *pbuf; |
| struct KeyInfo ki = { .data = keyId }; |
| bool good = true; |
| |
| struct ImageHeader outHeader = { |
| .aosp = (struct nano_app_binary_t) { |
| .header_version = 1, |
| .magic = NANOAPP_AOSP_MAGIC, |
| .app_id = appId, |
| }, |
| .layout = (struct ImageLayout) { |
| .magic = GOOGLE_LAYOUT_MAGIC, |
| .version = 1, |
| .payload = LAYOUT_KEY, |
| .flags = layoutFlags, |
| }, |
| }; |
| |
| good = good && fwrite(&outHeader, sizeof(outHeader), 1, out) == 1; |
| good = good && fwrite(&ki, sizeof(ki), 1, out) == 1; |
| good = good && fwrite(buf, bufUsed, 1, out) == 1; |
| |
| return good ? 0 : 2; |
| } |
| |
| static int handleOs(uint8_t **pbuf, uint32_t bufUsed, FILE *out, uint32_t layoutFlags, bool bare) |
| { |
| uint8_t *buf = *pbuf; |
| bool good; |
| |
| struct OsUpdateHdr os = { |
| .magic = OS_UPDT_MAGIC, |
| .marker = OS_UPDT_MARKER_INPROGRESS, |
| .size = bufUsed |
| }; |
| |
| struct ImageHeader outHeader = { |
| .aosp = (struct nano_app_binary_t) { |
| .header_version = 1, |
| .magic = NANOAPP_AOSP_MAGIC, |
| }, |
| .layout = (struct ImageLayout) { |
| .magic = GOOGLE_LAYOUT_MAGIC, |
| .version = 1, |
| .payload = LAYOUT_OS, |
| .flags = layoutFlags, |
| }, |
| }; |
| |
| if (!bare) |
| good = fwrite(&outHeader, sizeof(outHeader), 1, out) == 1; |
| else |
| good = fwrite(&os, sizeof(os), 1, out) == 1; |
| good = good && fwrite(buf, bufUsed, 1, out) == 1; |
| |
| return good ? 0 : 2; |
| } |
| |
| int main(int argc, char **argv) |
| { |
| uint32_t bufUsed = 0; |
| bool verbose = false; |
| uint8_t *buf = NULL; |
| uint64_t appId = 0; |
| uint64_t keyId = 0; |
| uint32_t layoutId = 0; |
| uint32_t layoutFlags = 0; |
| int ret = -1; |
| uint32_t *u32Arg = NULL; |
| uint64_t *u64Arg = NULL; |
| const char **strArg = NULL; |
| const char *appName = argv[0]; |
| int posArgCnt = 0; |
| const char *posArg[2] = { NULL }; |
| FILE *out = NULL; |
| const char *layoutName = "app"; |
| const char *prev = NULL; |
| bool bareData = false; |
| |
| for (int i = 1; i < argc; i++) { |
| char *end = NULL; |
| if (argv[i][0] == '-') { |
| prev = argv[i]; |
| if (!strcmp(argv[i], "-v")) |
| verbose = true; |
| else if (!strcmp(argv[i], "-r")) |
| bareData = true; |
| else if (!strcmp(argv[i], "-a")) |
| u64Arg = &appId; |
| else if (!strcmp(argv[i], "-k")) |
| u64Arg = &keyId; |
| else if (!strcmp(argv[i], "-n")) |
| strArg = &layoutName; |
| else if (!strcmp(argv[i], "-i")) |
| u32Arg = &layoutId; |
| else if (!strcmp(argv[i], "-f")) |
| u32Arg = &layoutFlags; |
| else |
| fatalUsage(appName, "unknown argument", argv[i]); |
| } else { |
| if (u64Arg) { |
| uint64_t tmp = strtoull(argv[i], &end, 16); |
| if (*end == '\0') |
| *u64Arg = tmp; |
| u64Arg = NULL; |
| } else if (u32Arg) { |
| uint32_t tmp = strtoul(argv[i], &end, 16); |
| if (*end == '\0') |
| *u32Arg = tmp; |
| u32Arg = NULL; |
| } else if (strArg) { |
| *strArg = argv[i]; |
| strArg = NULL; |
| } else { |
| if (posArgCnt < 2) |
| posArg[posArgCnt++] = argv[i]; |
| else |
| fatalUsage(appName, "too many positional arguments", argv[i]); |
| } |
| prev = NULL; |
| } |
| } |
| if (prev) |
| fatalUsage(appName, "missing argument after", prev); |
| |
| if (!posArgCnt) |
| fatalUsage(appName, "missing input file name", NULL); |
| |
| if (!layoutId) { |
| if (strcmp(layoutName, "app") == 0) |
| layoutId = LAYOUT_APP; |
| else if (strcmp(layoutName, "os") == 0) |
| layoutId = LAYOUT_OS; |
| else if (strcmp(layoutName, "key") == 0) |
| layoutId = LAYOUT_KEY; |
| else |
| fatalUsage(appName, "Invalid layout name", layoutName); |
| } |
| |
| if (layoutId == LAYOUT_APP && !appId) |
| fatalUsage(appName, "App layout requires app ID", NULL); |
| if (layoutId == LAYOUT_KEY && !keyId) |
| fatalUsage(appName, "Key layout requires key ID", NULL); |
| if (layoutId == LAYOUT_OS && (keyId || appId)) |
| fatalUsage(appName, "OS layout does not need any ID", NULL); |
| |
| if (!posArg[1]) { |
| out = stdout; |
| stdlog = stderr; |
| } else { |
| out = fopen(posArg[1], "w"); |
| stdlog = stdout; |
| } |
| if (!out) |
| fatalUsage(appName, "failed to create/open output file", posArg[1]); |
| |
| buf = loadFile(posArg[0], &bufUsed); |
| DBG("Read %" PRIu32 " bytes from %s", bufUsed, posArg[0]); |
| |
| switch(layoutId) { |
| case LAYOUT_APP: |
| ret = handleApp(&buf, bufUsed, out, layoutFlags, appId, verbose); |
| break; |
| case LAYOUT_KEY: |
| ret = handleKey(&buf, bufUsed, out, layoutFlags, appId, keyId); |
| break; |
| case LAYOUT_OS: |
| ret = handleOs(&buf, bufUsed, out, layoutFlags, bareData); |
| break; |
| } |
| |
| free(buf); |
| fclose(out); |
| return ret; |
| } |
