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-rw-r--r--tools/Makefile9
-rw-r--r--tools/mkexynosspl.c167
-rw-r--r--tools/mxsimage.c1
-rw-r--r--tools/relocate-rela.c189
4 files changed, 322 insertions, 44 deletions
diff --git a/tools/Makefile b/tools/Makefile
index e1264fd..328cea3 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -54,12 +54,14 @@ BIN_FILES-y += dumpimage$(SFX)
BIN_FILES-y += mkenvimage$(SFX)
BIN_FILES-y += mkimage$(SFX)
BIN_FILES-$(CONFIG_EXYNOS5250) += mk$(BOARD)spl$(SFX)
+BIN_FILES-$(CONFIG_EXYNOS5420) += mk$(BOARD)spl$(SFX)
BIN_FILES-$(CONFIG_MX23) += mxsboot$(SFX)
BIN_FILES-$(CONFIG_MX28) += mxsboot$(SFX)
BIN_FILES-$(CONFIG_NETCONSOLE) += ncb$(SFX)
BIN_FILES-$(CONFIG_SHA1_CHECK_UB_IMG) += ubsha1$(SFX)
BIN_FILES-$(CONFIG_KIRKWOOD) += kwboot$(SFX)
BIN_FILES-y += proftool(SFX)
+BIN_FILES-$(CONFIG_STATIC_RELA) += relocate-rela$(SFX)
# Source files which exist outside the tools directory
EXT_OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += common/env_embedded.o
@@ -87,10 +89,11 @@ NOPED_OBJ_FILES-y += os_support.o
NOPED_OBJ_FILES-y += pblimage.o
NOPED_OBJ_FILES-y += proftool.o
NOPED_OBJ_FILES-y += ublimage.o
+NOPED_OBJ_FILES-y += relocate-rela.o
OBJ_FILES-$(CONFIG_BUILD_ENVCRC) += envcrc.o
OBJ_FILES-$(CONFIG_CMD_LOADS) += img2srec.o
OBJ_FILES-$(CONFIG_CMD_NET) += gen_eth_addr.o
-OBJ_FILES-$(CONFIG_EXYNOS5250) += mkexynosspl.o
+OBJ_FILES-$(CONFIG_EXYNOS_SPL) += mkexynosspl.o
OBJ_FILES-$(CONFIG_KIRKWOOD) += kwboot.o
OBJ_FILES-$(CONFIG_LCD_LOGO) += bmp_logo.o
OBJ_FILES-$(CONFIG_MX23) += mxsboot.o
@@ -278,6 +281,10 @@ $(obj)kwboot$(SFX): $(obj)kwboot.o
$(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
$(HOSTSTRIP) $@
+$(obj)relocate-rela$(SFX): $(obj)relocate-rela.o
+ $(HOSTCC) $(HOSTCFLAGS) $(HOSTLDFLAGS) -o $@ $^
+ $(HOSTSTRIP) $@
+
# Some of the tool objects need to be accessed from outside the tools directory
$(obj)%.o: $(SRCTREE)/common/%.c
$(HOSTCC) -g $(HOSTCFLAGS_NOPED) -c -o $@ $<
diff --git a/tools/mkexynosspl.c b/tools/mkexynosspl.c
index ef685b7..32b786c 100644
--- a/tools/mkexynosspl.c
+++ b/tools/mkexynosspl.c
@@ -14,93 +14,174 @@
#include <compiler.h>
#define CHECKSUM_OFFSET (14*1024-4)
-#define BUFSIZE (14*1024)
#define FILE_PERM (S_IRUSR | S_IWUSR | S_IRGRP \
| S_IWGRP | S_IROTH | S_IWOTH)
/*
-* Requirement:
-* IROM code reads first 14K bytes from boot device.
-* It then calculates the checksum of 14K-4 bytes and compare with data at
-* 14K-4 offset.
-*
-* This function takes two filenames:
-* IN "u-boot-spl.bin" and
-* OUT "$(BOARD)-spl.bin as filenames.
-* It reads the "u-boot-spl.bin" in 16K buffer.
-* It calculates checksum of 14K-4 Bytes and stores at 14K-4 offset in buffer.
-* It writes the buffer to "$(BOARD)-spl.bin" file.
-*/
+ * Requirement for the fixed size SPL header:
+ * IROM code reads first (CHECKSUM_OFFSET + 4) bytes from boot device. It then
+ * calculates the checksum of CHECKSUM_OFFSET bytes and compares with data at
+ * CHECKSUM_OFFSET location.
+ *
+ * Requirement for the variable size SPL header:
+
+ * IROM code reads the below header to find out the size of the blob (total
+ * size, header size included) and its checksum. Then it reads the rest of the
+ * blob [i.e size - sizeof(struct var_size_header) bytes], calculates the
+ * checksum and compares it with value read from the header.
+ */
+struct var_size_header {
+ uint32_t spl_size;
+ uint32_t spl_checksum;
+ uint32_t reserved[2];
+};
+
+static const char *prog_name;
+
+static void write_to_file(int ofd, void *buffer, int size)
+{
+ if (write(ofd, buffer, size) == size)
+ return;
+
+ fprintf(stderr, "%s: Failed to write to output file: %s\n",
+ prog_name, strerror(errno));
+ exit(EXIT_FAILURE);
+}
+/*
+ * The argv is expected to include one optional parameter and two filenames:
+ * [--vs] IN OUT
+ *
+ * --vs - turns on the variable size SPL mode
+ * IN - the u-boot SPL binary, usually u-boot-spl.bin
+ * OUT - the prepared SPL blob, usually ${BOARD}-spl.bin
+ *
+ * This utility first reads the "u-boot-spl.bin" into a buffer. In case of
+ * fixed size SPL the buffer size is exactly CHECKSUM_OFFSET (such that
+ * smaller u-boot-spl.bin gets padded with 0xff bytes, the larger than limit
+ * u-boot-spl.bin causes an error). For variable size SPL the buffer size is
+ * eqaul to size of the IN file.
+ *
+ * Then it calculates checksum of the buffer by just summing up all bytes.
+ * Then
+ *
+ * - for fixed size SPL the buffer is written into the output file and the
+ * checksum is appended to the file in little endian format, which results
+ * in checksum added exactly at CHECKSUM_OFFSET.
+ *
+ * - for variable size SPL the checksum and file size are stored in the
+ * var_size_header structure (again, in little endian format) and the
+ * structure is written into the output file. Then the buffer is written
+ * into the output file.
+ */
int main(int argc, char **argv)
{
- unsigned char buffer[BUFSIZE];
+ unsigned char *buffer;
int i, ifd, ofd;
uint32_t checksum = 0;
off_t len;
- ssize_t count;
+ int var_size_flag, read_size, count;
struct stat stat;
-
- if (argc != 3) {
- fprintf(stderr, "Usage: %s <infile> <outfile>\n", argv[0]);
+ const int if_index = argc - 2; /* Input file name index in argv. */
+ const int of_index = argc - 1; /* Output file name index in argv. */
+
+ /* Strip path off the program name. */
+ prog_name = strrchr(argv[0], '/');
+ if (prog_name)
+ prog_name++;
+ else
+ prog_name = argv[0];
+
+ if ((argc < 3) ||
+ (argc > 4) ||
+ ((argc == 4) && strcmp(argv[1], "--vs"))) {
+ fprintf(stderr, "Usage: %s [--vs] <infile> <outfile>\n",
+ prog_name);
exit(EXIT_FAILURE);
}
- ifd = open(argv[1], O_RDONLY);
+ /* four args mean variable size SPL wrapper is required */
+ var_size_flag = (argc == 4);
+
+ ifd = open(argv[if_index], O_RDONLY);
if (ifd < 0) {
fprintf(stderr, "%s: Can't open %s: %s\n",
- argv[0], argv[1], strerror(errno));
+ prog_name, argv[if_index], strerror(errno));
exit(EXIT_FAILURE);
}
- ofd = open(argv[2], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
+ ofd = open(argv[of_index], O_WRONLY | O_CREAT | O_TRUNC, FILE_PERM);
if (ifd < 0) {
fprintf(stderr, "%s: Can't open %s: %s\n",
- argv[0], argv[2], strerror(errno));
- close(ifd);
+ prog_name, argv[of_index], strerror(errno));
exit(EXIT_FAILURE);
}
if (fstat(ifd, &stat)) {
fprintf(stderr, "%s: Unable to get size of %s: %s\n",
- argv[0], argv[1], strerror(errno));
- close(ifd);
- close(ofd);
+ prog_name, argv[if_index], strerror(errno));
exit(EXIT_FAILURE);
}
len = stat.st_size;
- count = (len < CHECKSUM_OFFSET) ? len : CHECKSUM_OFFSET;
-
- if (read(ifd, buffer, count) != count) {
- fprintf(stderr, "%s: Can't read %s: %s\n",
- argv[0], argv[1], strerror(errno));
+ if (var_size_flag) {
+ read_size = len;
+ count = len;
+ } else {
+ if (len > CHECKSUM_OFFSET) {
+ fprintf(stderr,
+ "%s: %s is too big (exceeds %d bytes)\n",
+ prog_name, argv[if_index], CHECKSUM_OFFSET);
+ exit(EXIT_FAILURE);
+ }
+ count = CHECKSUM_OFFSET;
+ read_size = len;
+ }
- close(ifd);
- close(ofd);
+ buffer = malloc(count);
+ if (!buffer) {
+ fprintf(stderr,
+ "%s: Failed to allocate %d bytes to store %s\n",
+ prog_name, count, argv[if_index]);
+ exit(EXIT_FAILURE);
+ }
+ if (read(ifd, buffer, read_size) != read_size) {
+ fprintf(stderr, "%s: Can't read %s: %s\n",
+ prog_name, argv[if_index], strerror(errno));
exit(EXIT_FAILURE);
}
- for (i = 0, checksum = 0; i < CHECKSUM_OFFSET; i++)
- checksum += buffer[i];
+ /* Pad if needed with 0xff to make flashing faster. */
+ if (read_size < count)
+ memset((char *)buffer + read_size, 0xff, count - read_size);
+ for (i = 0, checksum = 0; i < count; i++)
+ checksum += buffer[i];
checksum = cpu_to_le32(checksum);
- memcpy(&buffer[CHECKSUM_OFFSET], &checksum, sizeof(checksum));
-
- if (write(ofd, buffer, BUFSIZE) != BUFSIZE) {
- fprintf(stderr, "%s: Can't write %s: %s\n",
- argv[0], argv[2], strerror(errno));
+ if (var_size_flag) {
+ /* Prepare and write out the variable size SPL header. */
+ struct var_size_header vsh;
+ uint32_t spl_size;
- close(ifd);
- close(ofd);
+ memset(&vsh, 0, sizeof(vsh));
+ memcpy(&vsh.spl_checksum, &checksum, sizeof(checksum));
- exit(EXIT_FAILURE);
+ spl_size = cpu_to_le32(count + sizeof(struct var_size_header));
+ memcpy(&vsh.spl_size, &spl_size, sizeof(spl_size));
+ write_to_file(ofd, &vsh, sizeof(vsh));
}
+ write_to_file(ofd, buffer, count);
+
+ /* For fixed size SPL checksum is appended in the end. */
+ if (!var_size_flag)
+ write_to_file(ofd, &checksum, sizeof(checksum));
+
close(ifd);
close(ofd);
+ free(buffer);
return EXIT_SUCCESS;
}
diff --git a/tools/mxsimage.c b/tools/mxsimage.c
index b214050..045b35a 100644
--- a/tools/mxsimage.c
+++ b/tools/mxsimage.c
@@ -502,6 +502,7 @@ static int sb_token_to_long(char *tok, uint32_t *rid)
tok += 2;
+ errno = 0;
id = strtoul(tok, &endptr, 16);
if ((errno == ERANGE && id == ULONG_MAX) || (errno != 0 && id == 0)) {
fprintf(stderr, "ERR: Value can't be decoded!\n");
diff --git a/tools/relocate-rela.c b/tools/relocate-rela.c
new file mode 100644
index 0000000..93b4c39
--- /dev/null
+++ b/tools/relocate-rela.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause
+ *
+ * 64-bit and little-endian target only until we need to support a different
+ * arch that needs this.
+ */
+
+#include <elf.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#ifndef R_AARCH64_RELATIVE
+#define R_AARCH64_RELATIVE 1027
+#endif
+
+static const bool debug_en;
+
+static void debug(const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ if (debug_en)
+ vprintf(fmt, args);
+}
+
+static bool supported_rela(Elf64_Rela *rela)
+{
+ uint64_t mask = 0xffffffffULL; /* would be different on 32-bit */
+ uint32_t type = rela->r_info & mask;
+
+ switch (type) {
+#ifdef R_AARCH64_RELATIVE
+ case R_AARCH64_RELATIVE:
+ return true;
+#endif
+ default:
+ fprintf(stderr, "warning: unsupported relocation type %"
+ PRIu32 " at %" PRIx64 "\n",
+ type, rela->r_offset);
+
+ return false;
+ }
+}
+
+static inline uint64_t swap64(uint64_t val)
+{
+ return ((val >> 56) & 0x00000000000000ffULL) |
+ ((val >> 40) & 0x000000000000ff00ULL) |
+ ((val >> 24) & 0x0000000000ff0000ULL) |
+ ((val >> 8) & 0x00000000ff000000ULL) |
+ ((val << 8) & 0x000000ff00000000ULL) |
+ ((val << 24) & 0x0000ff0000000000ULL) |
+ ((val << 40) & 0x00ff000000000000ULL) |
+ ((val << 56) & 0xff00000000000000ULL);
+}
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+static inline uint64_t be64(uint64_t val)
+{
+ return swap64(val);
+}
+
+static inline uint64_t le64(uint64_t val)
+{
+ return val;
+}
+#else
+static inline uint64_t le64(uint64_t val)
+{
+ return swap64(val);
+}
+
+static inline uint64_t be64(uint64_t val)
+{
+ return val;
+}
+#endif
+
+static bool read_num(const char *str, uint64_t *num)
+{
+ char *endptr;
+ *num = strtoull(str, &endptr, 16);
+ return str[0] && !endptr[0];
+}
+
+int main(int argc, char **argv)
+{
+ FILE *f;
+ int i, num;
+ uint64_t rela_start, rela_end, text_base;
+
+ if (argc != 5) {
+ fprintf(stderr, "Statically apply ELF rela relocations\n");
+ fprintf(stderr, "Usage: %s <bin file> <text base> " \
+ "<rela start> <rela end>\n", argv[0]);
+ fprintf(stderr, "All numbers in hex.\n");
+ return 1;
+ }
+
+ f = fopen(argv[1], "r+b");
+ if (!f) {
+ fprintf(stderr, "%s: Cannot open %s: %s\n",
+ argv[0], argv[1], strerror(errno));
+ return 2;
+ }
+
+ if (!read_num(argv[2], &text_base) ||
+ !read_num(argv[3], &rela_start) ||
+ !read_num(argv[4], &rela_end)) {
+ fprintf(stderr, "%s: bad number\n", argv[0]);
+ return 3;
+ }
+
+ if (rela_start > rela_end || rela_start < text_base ||
+ (rela_end - rela_start) % 24) {
+ fprintf(stderr, "%s: bad rela bounds\n", argv[0]);
+ return 3;
+ }
+
+ rela_start -= text_base;
+ rela_end -= text_base;
+
+ num = (rela_end - rela_start) / sizeof(Elf64_Rela);
+
+ for (i = 0; i < num; i++) {
+ Elf64_Rela rela, swrela;
+ uint64_t pos = rela_start + sizeof(Elf64_Rela) * i;
+ uint64_t addr;
+
+ if (fseek(f, pos, SEEK_SET) < 0) {
+ fprintf(stderr, "%s: %s: seek to %" PRIx64
+ " failed: %s\n",
+ argv[0], argv[1], pos, strerror(errno));
+ }
+
+ if (fread(&rela, sizeof(rela), 1, f) != 1) {
+ fprintf(stderr, "%s: %s: read rela failed at %"
+ PRIx64 "\n",
+ argv[0], argv[1], pos);
+ return 4;
+ }
+
+ swrela.r_offset = le64(rela.r_offset);
+ swrela.r_info = le64(rela.r_info);
+ swrela.r_addend = le64(rela.r_addend);
+
+ if (!supported_rela(&swrela))
+ continue;
+
+ debug("Rela %" PRIx64 " %" PRIu64 " %" PRIx64 "\n",
+ swrela.r_offset, swrela.r_info, swrela.r_addend);
+
+ if (swrela.r_offset < text_base) {
+ fprintf(stderr, "%s: %s: bad rela at %" PRIx64 "\n",
+ argv[0], argv[1], pos);
+ return 4;
+ }
+
+ addr = swrela.r_offset - text_base;
+
+ if (fseek(f, addr, SEEK_SET) < 0) {
+ fprintf(stderr, "%s: %s: seek to %"
+ PRIx64 " failed: %s\n",
+ argv[0], argv[1], addr, strerror(errno));
+ }
+
+ if (fwrite(&rela.r_addend, sizeof(rela.r_addend), 1, f) != 1) {
+ fprintf(stderr, "%s: %s: write failed at %" PRIx64 "\n",
+ argv[0], argv[1], addr);
+ return 4;
+ }
+ }
+
+ if (fclose(f) < 0) {
+ fprintf(stderr, "%s: %s: close failed: %s\n",
+ argv[0], argv[1], strerror(errno));
+ return 4;
+ }
+
+ return 0;
+}
generated by cgit v1.1 at 2024-10-31 14:13:22 +0000