aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/generic/pending-4.19/203-kallsyms_uncompressed.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/generic/pending-4.19/203-kallsyms_uncompressed.patch')
-rw-r--r--target/linux/generic/pending-4.19/203-kallsyms_uncompressed.patch119
1 files changed, 0 insertions, 119 deletions
diff --git a/target/linux/generic/pending-4.19/203-kallsyms_uncompressed.patch b/target/linux/generic/pending-4.19/203-kallsyms_uncompressed.patch
deleted file mode 100644
index 79e991022a..0000000000
--- a/target/linux/generic/pending-4.19/203-kallsyms_uncompressed.patch
+++ /dev/null
@@ -1,119 +0,0 @@
-From: Felix Fietkau <nbd@nbd.name>
-Subject: kernel: add a config option for keeping the kallsyms table uncompressed, saving ~9kb kernel size after lzma on ar71xx
-
-[john@phrozen.org: added to my upstream queue 30.12.2016]
-lede-commit: e0e3509b5ce2ccf93d4d67ea907613f5f7ec2eed
-Signed-off-by: Felix Fietkau <nbd@nbd.name>
----
- init/Kconfig | 11 +++++++++++
- kernel/kallsyms.c | 8 ++++++++
- scripts/kallsyms.c | 12 ++++++++++++
- scripts/link-vmlinux.sh | 4 ++++
- 4 files changed, 35 insertions(+)
-
---- a/init/Kconfig
-+++ b/init/Kconfig
-@@ -1149,6 +1149,17 @@ 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/kernel/kallsyms.c
-+++ b/kernel/kallsyms.c
-@@ -74,6 +74,11 @@ 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++;
-@@ -106,6 +111,9 @@ 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.
---- a/scripts/kallsyms.c
-+++ b/scripts/kallsyms.c
-@@ -61,6 +61,7 @@ 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 int base_relative = 0;
-
-@@ -439,6 +440,9 @@ static void write_src(void)
-
- free(markers);
-
-+ if (uncompressed)
-+ return;
-+
- output_label("kallsyms_token_table");
- off = 0;
- for (i = 0; i < 256; i++) {
-@@ -497,6 +501,9 @@ 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];
-@@ -569,6 +576,9 @@ 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--) {
-@@ -751,6 +761,8 @@ int main(int argc, char **argv)
- absolute_percpu = 1;
- else if (strcmp(argv[i], "--base-relative") == 0)
- base_relative = 1;
-+ else if (strcmp(argv[i], "--uncompressed") == 0)
-+ uncompressed = 1;
- else
- usage();
- }
---- a/scripts/link-vmlinux.sh
-+++ b/scripts/link-vmlinux.sh
-@@ -133,6 +133,10 @@ kallsyms()
- kallsymopt="${kallsymopt} --base-relative"
- fi
-
-+ if [ -n "${CONFIG_KALLSYMS_UNCOMPRESSED}" ]; then
-+ kallsymopt="${kallsymopt} --uncompressed"
-+ fi
-+
- local aflags="${KBUILD_AFLAGS} ${KBUILD_AFLAGS_KERNEL} \
- ${NOSTDINC_FLAGS} ${LINUXINCLUDE} ${KBUILD_CPPFLAGS}"
-