89 lines
1.5 KiB
C
89 lines
1.5 KiB
C
/*
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SPDX-License-Identifier: GPL-2.0-only
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Copyright (C) 2008 Arnaldo Carvalho de Melo <acme@redhat.com>
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*/
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#include "pahole_strings.h"
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#include "gobuffer.h"
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#include <search.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <zlib.h>
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#include "dutil.h"
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#include "lib/bpf/src/libbpf.h"
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struct strings *strings__new(void)
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{
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struct strings *strs = malloc(sizeof(*strs));
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if (!strs)
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return NULL;
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strs->btf = btf__new_empty();
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if (libbpf_get_error(strs->btf)) {
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free(strs);
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return NULL;
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}
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return strs;
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}
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void strings__delete(struct strings *strs)
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{
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if (strs == NULL)
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return;
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btf__free(strs->btf);
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free(strs);
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}
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strings_t strings__add(struct strings *strs, const char *str)
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{
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strings_t index;
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if (str == NULL)
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return 0;
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index = btf__add_str(strs->btf, str);
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if (index < 0)
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return 0;
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return index;
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}
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strings_t strings__find(struct strings *strs, const char *str)
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{
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return btf__find_str(strs->btf, str);
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}
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/* a horrible and inefficient hack to get string section size out of BTF */
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strings_t strings__size(const struct strings *strs)
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{
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const struct btf_header *p;
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uint32_t sz;
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p = btf__get_raw_data(strs->btf, &sz);
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if (!p)
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return -1;
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return p->str_len;
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}
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/* similarly horrible hack to copy out string section out of BTF */
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int strings__copy(const struct strings *strs, void *dst)
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{
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const struct btf_header *p;
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uint32_t sz;
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p = btf__get_raw_data(strs->btf, &sz);
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if (!p)
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return -1;
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memcpy(dst, (void *)p + p->str_off, p->str_len);
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return 0;
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}
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