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scripts/kallsyms: add const qualifiers where possible 

Add 'const' where a function does not write to the pointer dereferenes.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2019-11-24 01:04:38 +09:00
parent 2558c138ac
commit 4bfe2b7816
1 changed files with 14 additions and 14 deletions
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28
scripts/kallsyms.c
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@ -170,11 +170,11 @@ static int read_symbol(FILE *in, struct sym_entry *s)
return 0;
}
static int symbol_in_range(struct sym_entry *s, struct addr_range *ranges,
int entries)
static int symbol_in_range(const struct sym_entry *s,
const struct addr_range *ranges, int entries)
{
size_t i;
struct addr_range *ar;
const struct addr_range *ar;
for (i = 0; i < entries; ++i) {
ar = &ranges[i];
@ -186,14 +186,14 @@ static int symbol_in_range(struct sym_entry *s, struct addr_range *ranges,
return 0;
}
static int symbol_valid(struct sym_entry *s)
static int symbol_valid(const struct sym_entry *s)
{
/* Symbols which vary between passes. Passes 1 and 2 must have
* identical symbol lists. The kallsyms_* symbols below are only added
* after pass 1, they would be included in pass 2 when --all-symbols is
* specified so exclude them to get a stable symbol list.
*/
static char *special_symbols[] = {
static const char * const special_symbols[] = {
"kallsyms_addresses",
"kallsyms_offsets",
"kallsyms_relative_base",
@ -208,12 +208,12 @@ static int symbol_valid(struct sym_entry *s)
"_SDA2_BASE_", /* ppc */
NULL };
static char *special_prefixes[] = {
static const char * const special_prefixes[] = {
"__crc_", /* modversions */
"__efistub_", /* arm64 EFI stub namespace */
NULL };
static char *special_suffixes[] = {
static const char * const special_suffixes[] = {
"_veneer", /* arm */
"_from_arm", /* arm */
"_from_thumb", /* arm */
@ -305,7 +305,7 @@ static void read_map(FILE *in)
}
}
static void output_label(char *label)
static void output_label(const char *label)
{
printf(".globl %s\n", label);
printf("\tALGN\n");
@ -314,7 +314,7 @@ static void output_label(char *label)
/* uncompress a compressed symbol. When this function is called, the best table
* might still be compressed itself, so the function needs to be recursive */
static int expand_symbol(unsigned char *data, int len, char *result)
static int expand_symbol(const unsigned char *data, int len, char *result)
{
int c, rlen, total=0;
@ -339,7 +339,7 @@ static int expand_symbol(unsigned char *data, int len, char *result)
return total;
}
static int symbol_absolute(struct sym_entry *s)
static int symbol_absolute(const struct sym_entry *s)
{
return s->percpu_absolute;
}
@ -477,7 +477,7 @@ static void write_src(void)
/* table lookup compression functions */
/* count all the possible tokens in a symbol */
static void learn_symbol(unsigned char *symbol, int len)
static void learn_symbol(const unsigned char *symbol, int len)
{
int i;
@ -486,7 +486,7 @@ static void learn_symbol(unsigned char *symbol, int len)
}
/* decrease the count for all the possible tokens in a symbol */
static void forget_symbol(unsigned char *symbol, int len)
static void forget_symbol(const unsigned char *symbol, int len)
{
int i;
@ -504,7 +504,7 @@ static void build_initial_tok_table(void)
}
static unsigned char *find_token(unsigned char *str, int len,
unsigned char *token)
const unsigned char *token)
{
int i;
@ -517,7 +517,7 @@ static unsigned char *find_token(unsigned char *str, int len,
/* replace a given token in all the valid symbols. Use the sampled symbols
* to update the counts */
static void compress_symbols(unsigned char *str, int idx)
static void compress_symbols(const unsigned char *str, int idx)
{
unsigned int i, len, size;
unsigned char *p1, *p2;