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authorSam Ravnborg <sam@ravnborg.org>2009-01-07 20:52:43 +0100
committerSam Ravnborg <sam@ravnborg.org>2009-01-07 21:44:20 +0100
commit8b249b6856f16f09b0e5b79ce5f4d435e439b9d6 (patch)
treed7915dd672c03ff04faef8fc50b741cef01f1a86 /firmware
parent8d1a0a13edecfdcb47fee3238ed4a2af2a2867f9 (diff)
downloadlinux-stericsson-8b249b6856f16f09b0e5b79ce5f4d435e439b9d6.tar.gz
fix modules_install via NFS
Rafael reported: I get the following error from 'make modules_install' on my test boxes: HOSTCC firmware/ihex2fw /home/rafael/src/linux-2.6/firmware/ihex2fw.c:268: fatal error: opening dependency file firmware/.ihex2fw.d: Read-only file system compilation terminated. make[3]: *** [firmware/ihex2fw] Error 1 make[2]: *** [_modinst_post] Error 2 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 where the configuration is that the kernel is compiled on a build box with 'make O=<destdir> -j5' and then <destdir> is mounted over NFS read-only by each test box (full path to this directory is the same on the build box and on the test boxes). Then, I cd into <destdir>, run 'make modules_install' and get the error above. The issue turns out to be that we when we install firmware pick up the list of firmware blobs from firmware/Makefile. And this triggers the Makefile rules to update ihex2fw. There were two solutions for this issue: 1) Move the list of firmware blobs to a separate file 2) Avoid ihex2fw rebuild by moving it to scripts As I seriously beleive that the list of firmware blobs should be done in a fundamental different way solution 2) was selected. Reported-and-tested-by: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'firmware')
-rw-r--r--firmware/.gitignore1
-rw-r--r--firmware/Makefile10
-rw-r--r--firmware/ihex2fw.c268
3 files changed, 4 insertions, 275 deletions
diff --git a/firmware/.gitignore b/firmware/.gitignore
index d9c69017bc9a..f89a21fffbf1 100644
--- a/firmware/.gitignore
+++ b/firmware/.gitignore
@@ -3,4 +3,3 @@
*.bin
*.csp
*.dsp
-ihex2fw
diff --git a/firmware/Makefile b/firmware/Makefile
index d872b7942a30..55d3082ea13e 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -99,10 +99,10 @@ quiet_cmd_ihex = IHEX $@
cmd_ihex = $(OBJCOPY) -Iihex -Obinary $< $@
quiet_cmd_ihex2fw = IHEX2FW $@
- cmd_ihex2fw = $(objtree)/$(obj)/ihex2fw $< $@
+ cmd_ihex2fw = $(objtree)/scripts/ihex2fw $< $@
quiet_cmd_h16tofw = H16TOFW $@
- cmd_h16tofw = $(objtree)/$(obj)/ihex2fw -w $< $@
+ cmd_h16tofw = $(objtree)/scripts/ihex2fw -w $< $@
quiet_cmd_fwbin = MK_FW $@
cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)"; \
@@ -165,11 +165,11 @@ $(obj)/%: $(obj)/%.ihex | $(objtree)/$(obj)/$$(dir %)
# is actually meaningful, because the firmware has to be loaded in a certain
# order rather than as a single binary blob. Thus, we convert them into our
# more compact binary representation of ihex records (<linux/ihex.h>)
-$(obj)/%.fw: $(obj)/%.HEX $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %)
+$(obj)/%.fw: $(obj)/%.HEX | $(objtree)/$(obj)/$$(dir %)
$(call cmd,ihex2fw)
# .H16 is our own modified form of Intel HEX, with 16-bit length for records.
-$(obj)/%.fw: $(obj)/%.H16 $(obj)/ihex2fw | $(objtree)/$(obj)/$$(dir %)
+$(obj)/%.fw: $(obj)/%.H16 | $(objtree)/$(obj)/$$(dir %)
$(call cmd,h16tofw)
$(firmware-dirs):
@@ -186,5 +186,3 @@ targets := $(fw-shipped-) $(patsubst $(obj)/%,%, \
# Without this, built-in.o won't be created when it's empty, and the
# final vmlinux link will fail.
obj-n := dummy
-
-hostprogs-y := ihex2fw
diff --git a/firmware/ihex2fw.c b/firmware/ihex2fw.c
deleted file mode 100644
index 8f7fdaa9e010..000000000000
--- a/firmware/ihex2fw.c
+++ /dev/null
@@ -1,268 +0,0 @@
-/*
- * Parser/loader for IHEX formatted data.
- *
- * Copyright © 2008 David Woodhouse <dwmw2@infradead.org>
- * Copyright © 2005 Jan Harkes <jaharkes@cs.cmu.edu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <stdint.h>
-#include <arpa/inet.h>
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#define _GNU_SOURCE
-#include <getopt.h>
-
-
-struct ihex_binrec {
- struct ihex_binrec *next; /* not part of the real data structure */
- uint32_t addr;
- uint16_t len;
- uint8_t data[];
-};
-
-/**
- * nybble/hex are little helpers to parse hexadecimal numbers to a byte value
- **/
-static uint8_t nybble(const uint8_t n)
-{
- if (n >= '0' && n <= '9') return n - '0';
- else if (n >= 'A' && n <= 'F') return n - ('A' - 10);
- else if (n >= 'a' && n <= 'f') return n - ('a' - 10);
- return 0;
-}
-
-static uint8_t hex(const uint8_t *data, uint8_t *crc)
-{
- uint8_t val = (nybble(data[0]) << 4) | nybble(data[1]);
- *crc += val;
- return val;
-}
-
-static int process_ihex(uint8_t *data, ssize_t size);
-static void file_record(struct ihex_binrec *record);
-static int output_records(int outfd);
-
-static int sort_records = 0;
-static int wide_records = 0;
-
-int usage(void)
-{
- fprintf(stderr, "ihex2fw: Convert ihex files into binary "
- "representation for use by Linux kernel\n");
- fprintf(stderr, "usage: ihex2fw [<options>] <src.HEX> <dst.fw>\n");
- fprintf(stderr, " -w: wide records (16-bit length)\n");
- fprintf(stderr, " -s: sort records by address\n");
- return 1;
-}
-
-int main(int argc, char **argv)
-{
- int infd, outfd;
- struct stat st;
- uint8_t *data;
- int opt;
-
- while ((opt = getopt(argc, argv, "ws")) != -1) {
- switch (opt) {
- case 'w':
- wide_records = 1;
- break;
- case 's':
- sort_records = 1;
- break;
- default:
- return usage();
- }
- }
-
- if (optind + 2 != argc)
- return usage();
-
- if (!strcmp(argv[optind], "-"))
- infd = 0;
- else
- infd = open(argv[optind], O_RDONLY);
- if (infd == -1) {
- fprintf(stderr, "Failed to open source file: %s",
- strerror(errno));
- return usage();
- }
- if (fstat(infd, &st)) {
- perror("stat");
- return 1;
- }
- data = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, infd, 0);
- if (data == MAP_FAILED) {
- perror("mmap");
- return 1;
- }
-
- if (!strcmp(argv[optind+1], "-"))
- outfd = 1;
- else
- outfd = open(argv[optind+1], O_TRUNC|O_CREAT|O_WRONLY, 0644);
- if (outfd == -1) {
- fprintf(stderr, "Failed to open destination file: %s",
- strerror(errno));
- return usage();
- }
- if (process_ihex(data, st.st_size))
- return 1;
-
- output_records(outfd);
- return 0;
-}
-
-static int process_ihex(uint8_t *data, ssize_t size)
-{
- struct ihex_binrec *record;
- uint32_t offset = 0;
- uint8_t type, crc = 0, crcbyte = 0;
- int i, j;
- int line = 1;
- int len;
-
- i = 0;
-next_record:
- /* search for the start of record character */
- while (i < size) {
- if (data[i] == '\n') line++;
- if (data[i++] == ':') break;
- }
-
- /* Minimum record length would be about 10 characters */
- if (i + 10 > size) {
- fprintf(stderr, "Can't find valid record at line %d\n", line);
- return -EINVAL;
- }
-
- len = hex(data + i, &crc); i += 2;
- if (wide_records) {
- len <<= 8;
- len += hex(data + i, &crc); i += 2;
- }
- record = malloc((sizeof (*record) + len + 3) & ~3);
- if (!record) {
- fprintf(stderr, "out of memory for records\n");
- return -ENOMEM;
- }
- memset(record, 0, (sizeof(*record) + len + 3) & ~3);
- record->len = len;
-
- /* now check if we have enough data to read everything */
- if (i + 8 + (record->len * 2) > size) {
- fprintf(stderr, "Not enough data to read complete record at line %d\n",
- line);
- return -EINVAL;
- }
-
- record->addr = hex(data + i, &crc) << 8; i += 2;
- record->addr |= hex(data + i, &crc); i += 2;
- type = hex(data + i, &crc); i += 2;
-
- for (j = 0; j < record->len; j++, i += 2)
- record->data[j] = hex(data + i, &crc);
-
- /* check CRC */
- crcbyte = hex(data + i, &crc); i += 2;
- if (crc != 0) {
- fprintf(stderr, "CRC failure at line %d: got 0x%X, expected 0x%X\n",
- line, crcbyte, (unsigned char)(crcbyte-crc));
- return -EINVAL;
- }
-
- /* Done reading the record */
- switch (type) {
- case 0:
- /* old style EOF record? */
- if (!record->len)
- break;
-
- record->addr += offset;
- file_record(record);
- goto next_record;
-
- case 1: /* End-Of-File Record */
- if (record->addr || record->len) {
- fprintf(stderr, "Bad EOF record (type 01) format at line %d",
- line);
- return -EINVAL;
- }
- break;
-
- case 2: /* Extended Segment Address Record (HEX86) */
- case 4: /* Extended Linear Address Record (HEX386) */
- if (record->addr || record->len != 2) {
- fprintf(stderr, "Bad HEX86/HEX386 record (type %02X) at line %d\n",
- type, line);
- return -EINVAL;
- }
-
- /* We shouldn't really be using the offset for HEX86 because
- * the wraparound case is specified quite differently. */
- offset = record->data[0] << 8 | record->data[1];
- offset <<= (type == 2 ? 4 : 16);
- goto next_record;
-
- case 3: /* Start Segment Address Record */
- case 5: /* Start Linear Address Record */
- if (record->addr || record->len != 4) {
- fprintf(stderr, "Bad Start Address record (type %02X) at line %d\n",
- type, line);
- return -EINVAL;
- }
-
- /* These records contain the CS/IP or EIP where execution
- * starts. Don't really know what to do with them. */
- goto next_record;
-
- default:
- fprintf(stderr, "Unknown record (type %02X)\n", type);
- return -EINVAL;
- }
-
- return 0;
-}
-
-static struct ihex_binrec *records;
-
-static void file_record(struct ihex_binrec *record)
-{
- struct ihex_binrec **p = &records;
-
- while ((*p) && (!sort_records || (*p)->addr < record->addr))
- p = &((*p)->next);
-
- record->next = *p;
- *p = record;
-}
-
-static int output_records(int outfd)
-{
- unsigned char zeroes[6] = {0, 0, 0, 0, 0, 0};
- struct ihex_binrec *p = records;
-
- while (p) {
- uint16_t writelen = (p->len + 9) & ~3;
-
- p->addr = htonl(p->addr);
- p->len = htons(p->len);
- write(outfd, &p->addr, writelen);
- p = p->next;
- }
- /* EOF record is zero length, since we don't bother to represent
- the type field in the binary version */
- write(outfd, zeroes, 6);
- return 0;
-}