0 0;li~ h8Eq bѿ D_ub &=Ly[Ͽ`;7zXZi"6!t/ #]yU},VtS~VӣVZ$BY ܸCqdm0ɳˤ6kd⤪ ;R4>"<(车*/ ,ͶS.5 TDv\\ќ[Kup6S-FVS}hDp;mXU}AYBϤVEP{pB$(x޿3 N?L6d>[}/S 63 0RMk۔ MY@ Y̅z̐,a"4.KYMx(+Xx(<1mC}s)5Z J0'^qW-CwAsveOwocy!ݛHm[^: $UdsNYq )K;J1b I=,co$v |u. 6[]hwU$:PVIod]8RyeݙRWtjeĆ hSࡄ8=мz!` sG%nVk^|^[W-Nq1#_T;uԸ YAP5\3%7C9"skq-Ýu֏^M]u99`.AkBW4߽K`&@9,/'h16jP.`M $aK8kvYd } !1)I 1h du4apI#0Zo P:lYw' unA+$eAukwɵŚϩKhmh54$M\nb~-nƻ'EtT6Ƃ?c]RVw5= JR=^u>0 YZ= 6_I|+?=// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) /* * resolve_btfids scans ELF object for .BTF_ids section and resolves * its symbols with BTF ID values. * * Each symbol points to 4 bytes data and is expected to have * following name syntax: * * __BTF_ID____[__] * * type is: * * func - lookup BTF_KIND_FUNC symbol with name * and store its ID into the data: * * __BTF_ID__func__vfs_close__1: * .zero 4 * * struct - lookup BTF_KIND_STRUCT symbol with name * and store its ID into the data: * * __BTF_ID__struct__sk_buff__1: * .zero 4 * * union - lookup BTF_KIND_UNION symbol with name * and store its ID into the data: * * __BTF_ID__union__thread_union__1: * .zero 4 * * typedef - lookup BTF_KIND_TYPEDEF symbol with name * and store its ID into the data: * * __BTF_ID__typedef__pid_t__1: * .zero 4 * * set - store symbol size into first 4 bytes and sort following * ID list * * __BTF_ID__set__list: * .zero 4 * list: * __BTF_ID__func__vfs_getattr__3: * .zero 4 * __BTF_ID__func__vfs_fallocate__4: * .zero 4 * * set8 - store symbol size into first 4 bytes and sort following * ID list * * __BTF_ID__set8__list: * .zero 8 * list: * __BTF_ID__func__vfs_getattr__3: * .zero 4 * .word (1 << 0) | (1 << 2) * __BTF_ID__func__vfs_fallocate__5: * .zero 4 * .word (1 << 3) | (1 << 1) | (1 << 2) */ #define _GNU_SOURCE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define BTF_IDS_SECTION ".BTF_ids" #define BTF_ID_PREFIX "__BTF_ID__" #define BTF_STRUCT "struct" #define BTF_UNION "union" #define BTF_TYPEDEF "typedef" #define BTF_FUNC "func" #define BTF_SET "set" #define BTF_SET8 "set8" #define ADDR_CNT 100 #if __BYTE_ORDER == __LITTLE_ENDIAN # define ELFDATANATIVE ELFDATA2LSB #elif __BYTE_ORDER == __BIG_ENDIAN # define ELFDATANATIVE ELFDATA2MSB #else # error "Unknown machine endianness!" #endif struct btf_id { struct rb_node rb_node; char *name; union { int id; int cnt; }; int addr_cnt; bool is_set; bool is_set8; Elf64_Addr addr[ADDR_CNT]; }; struct object { const char *path; const char *btf; const char *base_btf_path; struct