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- --- a/scripts/kallsyms.c
- +++ b/scripts/kallsyms.c
- @@ -58,6 +58,7 @@ static struct addr_range percpu_range =
- static struct sym_entry *table;
- static unsigned int table_size, table_cnt;
- static int all_symbols = 0;
- +static int uncompressed = 0;
- static int absolute_percpu = 0;
- static char symbol_prefix_char = '\0';
- static unsigned long long kernel_start_addr = 0;
- @@ -392,6 +393,9 @@ static void write_src(void)
-
- free(markers);
-
- + if (uncompressed)
- + return;
- +
- output_label("kallsyms_token_table");
- off = 0;
- for (i = 0; i < 256; i++) {
- @@ -450,6 +454,9 @@ static void *find_token(unsigned char *s
- {
- int i;
-
- + if (uncompressed)
- + return NULL;
- +
- for (i = 0; i < len - 1; i++) {
- if (str[i] == token[0] && str[i+1] == token[1])
- return &str[i];
- @@ -522,6 +529,9 @@ static void optimize_result(void)
- {
- int i, best;
-
- + if (uncompressed)
- + return;
- +
- /* using the '\0' symbol last allows compress_symbols to use standard
- * fast string functions */
- for (i = 255; i >= 0; i--) {
- @@ -692,7 +702,9 @@ int main(int argc, char **argv)
- } else if (strncmp(argv[i], "--page-offset=", 14) == 0) {
- const char *p = &argv[i][14];
- kernel_start_addr = strtoull(p, NULL, 16);
- - } else
- + } else if (strcmp(argv[i], "--uncompressed") == 0)
- + uncompressed = 1;
- + else
- usage();
- }
- } else if (argc != 1)
- --- a/init/Kconfig
- +++ b/init/Kconfig
- @@ -1338,6 +1338,17 @@ config SYSCTL_ARCH_UNALIGN_ALLOW
- the unaligned access emulation.
- see arch/parisc/kernel/unaligned.c for reference
-
- +config KALLSYMS_UNCOMPRESSED
- + bool "Keep kallsyms uncompressed"
- + depends on KALLSYMS
- + help
- + Normally kallsyms contains compressed symbols (using a token table),
- + reducing the uncompressed kernel image size. Keeping the symbol table
- + uncompressed significantly improves the size of this part in compressed
- + kernel images.
- +
- + Say N unless you need compressed kernel images to be small.
- +
- config HAVE_PCSPKR_PLATFORM
- bool
-
- --- a/scripts/link-vmlinux.sh
- +++ b/scripts/link-vmlinux.sh
- @@ -90,6 +90,10 @@ kallsyms()
- kallsymopt="${kallsymopt} --absolute-percpu"
- fi
-
- + if [ -n "${CONFIG_KALLSYMS_UNCOMPRESSED}" ]; then
- + kallsymopt="${kallsymopt} --uncompressed"
- + fi
- +
- local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL} \
- ${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}"
-
- --- a/kernel/kallsyms.c
- +++ b/kernel/kallsyms.c
- @@ -109,6 +109,11 @@ static unsigned int kallsyms_expand_symb
- * For every byte on the compressed symbol data, copy the table
- * entry for that byte.
- */
- +#ifdef CONFIG_KALLSYMS_UNCOMPRESSED
- + memcpy(result, data + 1, len - 1);
- + result += len - 1;
- + len = 0;
- +#endif
- while (len) {
- tptr = &kallsyms_token_table[kallsyms_token_index[*data]];
- data++;
- @@ -141,6 +146,9 @@ tail:
- */
- static char kallsyms_get_symbol_type(unsigned int off)
- {
- +#ifdef CONFIG_KALLSYMS_UNCOMPRESSED
- + return kallsyms_names[off + 1];
- +#endif
- /*
- * Get just the first code, look it up in the token table,
- * and return the first char from this token.
|
