https://sourceware.org/bugzilla/show_bug.cgi?id=29695
Bug ID: 29695
Summary: In libelf.h struct Elf, struct Elf_Scn is defined
using typedef and not using #include <libelfP.h> is
not the way to comply with the specification?
Product: elfutils
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libdw
Assignee: unassigned at sourceware dot org
Reporter: zhuorong.lin at outlook dot com
CC: elfutils-devel at sourceware dot org
Target Milestone: ---
In the source code, libelf.h in the libelf directory is just typedef struct
Elf, struct ElfScn, and the real definition is in libelfP.h, and there is no
#include <libelfP.h> in libelf.h.
Is directly typedef an undefined struct not in compliance with the
specification.
libelf.h
```
/* Archive symbol table entry. */
typedef struct
{
char *as_name; /* Symbol name. */
size_t as_off; /* Offset for this file in the archive. */
unsigned long int as_hash; /* Hash value of the name. */
} Elf_Arsym;
/* Descriptor for the ELF file. */
typedef struct Elf Elf;
/* Descriptor for ELF file section. */
typedef struct Elf_Scn Elf_Scn;
#ifdef __cplusplus
extern "C" {
#endif
/* Return descriptor for ELF file to work according to CMD. */
extern Elf *elf_begin (int __fildes, Elf_Cmd __cmd, Elf *__ref);
/* Create a clone of an existing ELF descriptor. */
extern Elf *elf_clone (Elf *__elf, Elf_Cmd __cmd);
/* Create descriptor for memory region. */
extern Elf *elf_memory (char *__image, size_t __size);
/* Advance archive descriptor to next element. */
extern Elf_Cmd elf_next (Elf *__elf);
```
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