Revision fb780761e7bd9f2e94f5b9a296ead6b35b944206 authored by Peter Zijlstra on 16 June 2021, 15:41:26 UTC, committed by Steven Rostedt (VMware) on 18 June 2021, 13:09:17 UTC
One should only use st_shndx when >SHN_UNDEF and <SHN_LORESERVE. When SHN_XINDEX, then use .symtab_shndx. Otherwise use 0. This handles the case: st_shndx >= SHN_LORESERVE && st_shndx != SHN_XINDEX. Link: https://lore.kernel.org/lkml/20210607023839.26387-1-mark-pk.tsai@mediatek.com/ Link: https://lkml.kernel.org/r/20210616154126.2794-1-mark-pk.tsai@mediatek.com Reported-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com> Tested-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> [handle endianness of sym->st_shndx] Signed-off-by: Mark-PK Tsai <mark-pk.tsai@mediatek.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
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map_in_map.h
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2017 Facebook
*/
#ifndef __MAP_IN_MAP_H__
#define __MAP_IN_MAP_H__
#include <linux/types.h>
struct file;
struct bpf_map;
struct bpf_map *bpf_map_meta_alloc(int inner_map_ufd);
void bpf_map_meta_free(struct bpf_map *map_meta);
void *bpf_map_fd_get_ptr(struct bpf_map *map, struct file *map_file,
int ufd);
void bpf_map_fd_put_ptr(void *ptr);
u32 bpf_map_fd_sys_lookup_elem(void *ptr);
#endif
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