#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
-#include <elf.h>
-#include <lttng/ust-endian.h>
-
-/*
- * Determine native endianness in order to convert when reading an ELF
- * file if there is a mismatch.
- */
-#if BYTE_ORDER == LITTLE_ENDIAN
-#define NATIVE_ELF_ENDIANNESS ELFDATA2LSB
-#else
-#define NATIVE_ELF_ENDIANNESS ELFDATA2MSB
-#endif
-
-/*
- * The size in bytes of the debug link CRC as contained in an ELF
- * section.
- */
-#define ELF_CRC_SIZE 4
-/*
- * ELF notes are aligned on 4 bytes. ref: ELF specification version
- * 1.1 p. 2-5.
- */
-#define ELF_NOTE_ENTRY_ALIGN 4
-/*
- * Within an ELF note, the `desc` field is also aligned on 4
- * bytes. ref: ELF specification version 1.1 p. 2-5.
- */
-#define ELF_NOTE_DESC_ALIGN 4
-
-#define bswap(x) \
- do { \
- switch (sizeof(x)) { \
- case 8: \
- x = bswap_64(x); \
- break; \
- case 4: \
- x = bswap_32(x); \
- break; \
- case 2: \
- x = bswap_16(x); \
- break; \
- case 1: \
- break; \
- default: \
- abort(); \
- } \
- } while (0)
-
-#define bswap_phdr(phdr) \
- do { \
- bswap((phdr).p_type); \
- bswap((phdr).p_offset); \
- bswap((phdr).p_filesz); \
- bswap((phdr).p_memsz); \
- bswap((phdr).p_align); \
- bswap((phdr).p_vaddr); \
- } while (0)
-
-#define bswap_shdr(shdr) \
- do { \
- bswap((shdr).sh_name); \
- bswap((shdr).sh_type); \
- bswap((shdr).sh_flags); \
- bswap((shdr).sh_addr); \
- bswap((shdr).sh_offset); \
- bswap((shdr).sh_size); \
- bswap((shdr).sh_link); \
- bswap((shdr).sh_info); \
- bswap((shdr).sh_addralign); \
- bswap((shdr).sh_entsize); \
- } while (0)
-
-#define bswap_ehdr(ehdr) \
- do { \
- bswap((ehdr).e_type); \
- bswap((ehdr).e_machine); \
- bswap((ehdr).e_version); \
- bswap((ehdr).e_entry); \
- bswap((ehdr).e_phoff); \
- bswap((ehdr).e_shoff); \
- bswap((ehdr).e_flags); \
- bswap((ehdr).e_ehsize); \
- bswap((ehdr).e_phentsize); \
- bswap((ehdr).e_phnum); \
- bswap((ehdr).e_shentsize); \
- bswap((ehdr).e_shnum); \
- bswap((ehdr).e_shstrndx); \
- } while (0)
-
-#define copy_phdr(src_phdr, dst_phdr) \
- do { \
- (dst_phdr).p_type = (src_phdr).p_type; \
- (dst_phdr).p_offset = (src_phdr).p_offset; \
- (dst_phdr).p_filesz = (src_phdr).p_filesz; \
- (dst_phdr).p_memsz = (src_phdr).p_memsz; \
- (dst_phdr).p_align = (src_phdr).p_align; \
- (dst_phdr).p_vaddr = (src_phdr).p_vaddr; \
- } while (0)
-
-#define copy_shdr(src_shdr, dst_shdr) \
- do { \
- (dst_shdr).sh_name = (src_shdr).sh_name; \
- (dst_shdr).sh_type = (src_shdr).sh_type; \
- (dst_shdr).sh_flags = (src_shdr).sh_flags; \
- (dst_shdr).sh_addr = (src_shdr).sh_addr; \
- (dst_shdr).sh_offset = (src_shdr).sh_offset; \
- (dst_shdr).sh_size = (src_shdr).sh_size; \
- (dst_shdr).sh_link = (src_shdr).sh_link; \
- (dst_shdr).sh_info = (src_shdr).sh_info; \
- (dst_shdr).sh_addralign = (src_shdr).sh_addralign; \
- (dst_shdr).sh_entsize = (src_shdr).sh_entsize; \
- } while (0)
-
-#define copy_ehdr(src_ehdr, dst_ehdr) \
- do { \
- (dst_ehdr).e_type = (src_ehdr).e_type; \
- (dst_ehdr).e_machine = (src_ehdr).e_machine; \
- (dst_ehdr).e_version = (src_ehdr).e_version; \
- (dst_ehdr).e_entry = (src_ehdr).e_entry; \
- (dst_ehdr).e_phoff = (src_ehdr).e_phoff; \
- (dst_ehdr).e_shoff = (src_ehdr).e_shoff; \
- (dst_ehdr).e_flags = (src_ehdr).e_flags; \
- (dst_ehdr).e_ehsize = (src_ehdr).e_ehsize; \
- (dst_ehdr).e_phentsize = (src_ehdr).e_phentsize; \
- (dst_ehdr).e_phnum = (src_ehdr).e_phnum; \
- (dst_ehdr).e_shentsize = (src_ehdr).e_shentsize; \
- (dst_ehdr).e_shnum = (src_ehdr).e_shnum; \
- (dst_ehdr).e_shstrndx = (src_ehdr).e_shstrndx; \
- } while (0)
struct lttng_ust_elf_ehdr {
uint16_t e_type;
uint8_t endianness;
};
-static inline
-int is_elf_32_bit(struct lttng_ust_elf *elf)
-{
- return elf->bitness == ELFCLASS32;
-}
-
-static inline
-int is_elf_native_endian(struct lttng_ust_elf *elf)
-{
- return elf->endianness == NATIVE_ELF_ENDIANNESS;
-}
-
struct lttng_ust_elf *lttng_ust_elf_create(const char *path);
void lttng_ust_elf_destroy(struct lttng_ust_elf *elf);
uint8_t lttng_ust_elf_is_pic(struct lttng_ust_elf *elf);
lttng-events.c \
lttng-hash-helper.h \
lttng-ust-elf.c \
+ lttng-ust-elf.h \
lttng-ust-statedump.c \
lttng-ust-statedump.h \
lttng-ust-statedump-provider.h \
#include <ust-fd.h>
#include "lttng-tracer-core.h"
+#include "lttng-ust-elf.h"
#define BUF_LEN 4096
--- /dev/null
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * Copyright (C) 2015 Antoine Busque <abusque@efficios.com>
+ */
+
+#ifndef _LIB_LTTNG_UST_ELF_H
+#define _LIB_LTTNG_UST_ELF_H
+
+#include <elf.h>
+#include <lttng/ust-endian.h>
+
+/*
+ * Determine native endianness in order to convert when reading an ELF
+ * file if there is a mismatch.
+ */
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define NATIVE_ELF_ENDIANNESS ELFDATA2LSB
+#else
+#define NATIVE_ELF_ENDIANNESS ELFDATA2MSB
+#endif
+
+/*
+ * The size in bytes of the debug link CRC as contained in an ELF
+ * section.
+ */
+#define ELF_CRC_SIZE 4
+/*
+ * ELF notes are aligned on 4 bytes. ref: ELF specification version
+ * 1.1 p. 2-5.
+ */
+#define ELF_NOTE_ENTRY_ALIGN 4
+/*
+ * Within an ELF note, the `desc` field is also aligned on 4
+ * bytes. ref: ELF specification version 1.1 p. 2-5.
+ */
+#define ELF_NOTE_DESC_ALIGN 4
+
+#define bswap(x) \
+ do { \
+ switch (sizeof(x)) { \
+ case 8: \
+ x = bswap_64(x); \
+ break; \
+ case 4: \
+ x = bswap_32(x); \
+ break; \
+ case 2: \
+ x = bswap_16(x); \
+ break; \
+ case 1: \
+ break; \
+ default: \
+ abort(); \
+ } \
+ } while (0)
+
+#define bswap_phdr(phdr) \
+ do { \
+ bswap((phdr).p_type); \
+ bswap((phdr).p_offset); \
+ bswap((phdr).p_filesz); \
+ bswap((phdr).p_memsz); \
+ bswap((phdr).p_align); \
+ bswap((phdr).p_vaddr); \
+ } while (0)
+
+#define bswap_shdr(shdr) \
+ do { \
+ bswap((shdr).sh_name); \
+ bswap((shdr).sh_type); \
+ bswap((shdr).sh_flags); \
+ bswap((shdr).sh_addr); \
+ bswap((shdr).sh_offset); \
+ bswap((shdr).sh_size); \
+ bswap((shdr).sh_link); \
+ bswap((shdr).sh_info); \
+ bswap((shdr).sh_addralign); \
+ bswap((shdr).sh_entsize); \
+ } while (0)
+
+#define bswap_ehdr(ehdr) \
+ do { \
+ bswap((ehdr).e_type); \
+ bswap((ehdr).e_machine); \
+ bswap((ehdr).e_version); \
+ bswap((ehdr).e_entry); \
+ bswap((ehdr).e_phoff); \
+ bswap((ehdr).e_shoff); \
+ bswap((ehdr).e_flags); \
+ bswap((ehdr).e_ehsize); \
+ bswap((ehdr).e_phentsize); \
+ bswap((ehdr).e_phnum); \
+ bswap((ehdr).e_shentsize); \
+ bswap((ehdr).e_shnum); \
+ bswap((ehdr).e_shstrndx); \
+ } while (0)
+
+#define copy_phdr(src_phdr, dst_phdr) \
+ do { \
+ (dst_phdr).p_type = (src_phdr).p_type; \
+ (dst_phdr).p_offset = (src_phdr).p_offset; \
+ (dst_phdr).p_filesz = (src_phdr).p_filesz; \
+ (dst_phdr).p_memsz = (src_phdr).p_memsz; \
+ (dst_phdr).p_align = (src_phdr).p_align; \
+ (dst_phdr).p_vaddr = (src_phdr).p_vaddr; \
+ } while (0)
+
+#define copy_shdr(src_shdr, dst_shdr) \
+ do { \
+ (dst_shdr).sh_name = (src_shdr).sh_name; \
+ (dst_shdr).sh_type = (src_shdr).sh_type; \
+ (dst_shdr).sh_flags = (src_shdr).sh_flags; \
+ (dst_shdr).sh_addr = (src_shdr).sh_addr; \
+ (dst_shdr).sh_offset = (src_shdr).sh_offset; \
+ (dst_shdr).sh_size = (src_shdr).sh_size; \
+ (dst_shdr).sh_link = (src_shdr).sh_link; \
+ (dst_shdr).sh_info = (src_shdr).sh_info; \
+ (dst_shdr).sh_addralign = (src_shdr).sh_addralign; \
+ (dst_shdr).sh_entsize = (src_shdr).sh_entsize; \
+ } while (0)
+
+#define copy_ehdr(src_ehdr, dst_ehdr) \
+ do { \
+ (dst_ehdr).e_type = (src_ehdr).e_type; \
+ (dst_ehdr).e_machine = (src_ehdr).e_machine; \
+ (dst_ehdr).e_version = (src_ehdr).e_version; \
+ (dst_ehdr).e_entry = (src_ehdr).e_entry; \
+ (dst_ehdr).e_phoff = (src_ehdr).e_phoff; \
+ (dst_ehdr).e_shoff = (src_ehdr).e_shoff; \
+ (dst_ehdr).e_flags = (src_ehdr).e_flags; \
+ (dst_ehdr).e_ehsize = (src_ehdr).e_ehsize; \
+ (dst_ehdr).e_phentsize = (src_ehdr).e_phentsize; \
+ (dst_ehdr).e_phnum = (src_ehdr).e_phnum; \
+ (dst_ehdr).e_shentsize = (src_ehdr).e_shentsize; \
+ (dst_ehdr).e_shnum = (src_ehdr).e_shnum; \
+ (dst_ehdr).e_shstrndx = (src_ehdr).e_shstrndx; \
+ } while (0)
+
+static inline
+int is_elf_32_bit(struct lttng_ust_elf *elf)
+{
+ return elf->bitness == ELFCLASS32;
+}
+
+static inline
+int is_elf_native_endian(struct lttng_ust_elf *elf)
+{
+ return elf->endianness == NATIVE_ELF_ENDIANNESS;
+}
+
+#endif
projects / lttng-ust.git / commitdiff
