diff options
| -rw-r--r-- | tools/net/bpf_exp.y | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/tools/net/bpf_exp.y b/tools/net/bpf_exp.y index f524110643bb..d15efc989ef5 100644 --- a/tools/net/bpf_exp.y +++ b/tools/net/bpf_exp.y @@ -40,8 +40,8 @@ extern void yyerror(const char *str); extern void bpf_asm_compile(FILE *fp, bool cstyle); static void bpf_set_curr_instr(uint16_t op, uint8_t jt, uint8_t jf, uint32_t k); -static void bpf_set_curr_label(const char *label); -static void bpf_set_jmp_label(const char *label, enum jmp_type type); +static void bpf_set_curr_label(char *label); +static void bpf_set_jmp_label(char *label, enum jmp_type type); %} @@ -573,7 +573,7 @@ txa static int curr_instr = 0; static struct sock_filter out[BPF_MAXINSNS]; -static const char **labels, **labels_jt, **labels_jf, **labels_k; +static char **labels, **labels_jt, **labels_jf, **labels_k; static void bpf_assert_max(void) { @@ -594,13 +594,13 @@ static void bpf_set_curr_instr(uint16_t code, uint8_t jt, uint8_t jf, curr_instr++; } -static void bpf_set_curr_label(const char *label) +static void bpf_set_curr_label(char *label) { bpf_assert_max(); - labels[curr_instr] = label; + labels[curr_instr] = label; } -static void bpf_set_jmp_label(const char *label, enum jmp_type type) +static void bpf_set_jmp_label(char *label, enum jmp_type type) { bpf_assert_max(); switch (type) { @@ -717,12 +717,25 @@ static void bpf_init(void) assert(labels_k); } +static void bpf_destroy_labels(void) +{ + int i; + + for (i = 0; i < curr_instr; i++) { + free(labels_jf[i]); + free(labels_jt[i]); + free(labels_k[i]); + free(labels[i]); + } +} + static void bpf_destroy(void) { - free(labels); + bpf_destroy_labels(); free(labels_jt); free(labels_jf); free(labels_k); + free(labels); } void bpf_asm_compile(FILE *fp, bool cstyle) |