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authorDenys Vlasenko <vda.linux@googlemail.com>2018-12-19 13:19:44 +0100
committerDenys Vlasenko <vda.linux@googlemail.com>2018-12-19 13:20:02 +0100
commite3d3d2067dd535224e7a6f713107a38c3c7e18cd (patch)
tree0b777504a387e68c2146d6417e2676bcf9a3aba7
parent4796a1d5375aac790564a38289d5b238a81e8efb (diff)
downloadbusybox-e3d3d2067dd535224e7a6f713107a38c3c7e18cd.tar.gz
bc: remove redundant strdup+free in zbc_parse_call()
function old new delta zbc_parse_name 527 482 -45 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-45) Total: -45 bytes text data bss dec hex filename 981541 485 7296 989322 f188a busybox_old 981486 485 7296 989267 f1853 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--miscutils/bc.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c
index 8ddedf337..afc09a30b 100644
--- a/miscutils/bc.c
+++ b/miscutils/bc.c
@@ -1210,7 +1210,7 @@ static size_t bc_map_find(const BcVec *v, const void *ptr)
if (result == 0)
return mid;
- else if (result < 0)
+ if (result < 0)
high = mid;
else
low = mid + 1;
@@ -3441,6 +3441,7 @@ static BC_STATUS zdc_lex_token(BcLex *l)
static void bc_program_addFunc(char *name, size_t *idx);
+// Note: takes ownership of 'name' (must be malloced)
static void bc_parse_addFunc(BcParse *p, char *name, size_t *idx)
{
bc_program_addFunc(name, idx);
@@ -3494,7 +3495,7 @@ static void bc_parse_pushJUMP_ZERO(BcParse *p, size_t idx)
bc_parse_pushIndex(p, idx);
}
-static void bc_parse_number(BcParse *p)
+static void bc_parse_pushNUM(BcParse *p)
{
char *num = xstrdup(p->l.t.v.v);
size_t idx = G.prog.consts.len;
@@ -3719,6 +3720,7 @@ static BC_STATUS zbc_parse_params(BcParse *p, uint8_t flags)
}
#define zbc_parse_params(...) (zbc_parse_params(__VA_ARGS__) COMMA_SUCCESS)
+// Note: takes ownership of 'name' (must be malloced)
static BC_STATUS zbc_parse_call(BcParse *p, char *name, uint8_t flags)
{
BcStatus s;
@@ -3738,10 +3740,9 @@ static BC_STATUS zbc_parse_call(BcParse *p, char *name, uint8_t flags)
idx = bc_map_index(&G.prog.fn_map, &entry);
if (idx == BC_VEC_INVALID_IDX) {
- name = xstrdup(entry.name);
+ // No such function exist, create an empty one
bc_parse_addFunc(p, name, &idx);
idx = bc_map_index(&G.prog.fn_map, &entry);
- free(entry.name);
} else
free(name);
@@ -4628,7 +4629,7 @@ static BcStatus bc_parse_expr_empty_ok(BcParse *p, uint8_t flags)
case BC_LEX_NUMBER:
if (BC_PARSE_LEAF(prev, rprn))
return bc_error_bad_expression();
- bc_parse_number(p);
+ bc_parse_pushNUM(p);
nexprs++;
prev = BC_INST_NUM;
paren_expr = get_token = true;
@@ -4829,7 +4830,7 @@ static BC_STATUS zdc_parse_token(BcParse *p, BcLexType t, uint8_t flags)
if (p->l.t.t != BC_LEX_NUMBER)
RETURN_STATUS(bc_error_bad_token());
}
- bc_parse_number(p);
+ bc_parse_pushNUM(p);
if (t == BC_LEX_NEG) bc_parse_push(p, BC_INST_NEG);
get_token = true;
break;
@@ -4964,15 +4965,15 @@ static BC_STATUS zbc_program_num(BcResult *r, BcNum **num, bool hex)
break;
case BC_RESULT_CONSTANT: {
BcStatus s;
- char **str = bc_vec_item(&G.prog.consts, r->d.id.idx);
+ char *str = *(char**)bc_vec_item(&G.prog.consts, r->d.id.idx);
unsigned base_t;
- size_t len = strlen(*str);
+ size_t len = strlen(str);
bc_num_init(&r->d.n, len);
hex = hex && len == 1;
base_t = hex ? 16 : G.prog.ib_t;
- s = zbc_num_parse(&r->d.n, *str, base_t);
+ s = zbc_num_parse(&r->d.n, str, base_t);
if (s) {
bc_num_free(&r->d.n);
@@ -6317,6 +6318,7 @@ static void bc_program_pushGlobal(char inst)
bc_vec_push(&G.prog.results, &res);
}
+// Note: takes ownership of 'name' (must be malloced)
static void bc_program_addFunc(char *name, size_t *idx)
{
BcId entry, *entry_ptr;