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Move bfd_elf_bfd_from_remote_memory to opncls.c

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bfd_elf_bfd_from_remote_memory is just a wrapper, and the function
could be implemented for other formats.  Move it to opncls.c because
it acts a little like some of the other bfd_open* routines.  Also give
it the usual FUNCTION etc. comment so prototypes and docs are handled
automatically.

	* elf.c (bfd_elf_bfd_from_remote_memory): Move to..
	* opncls.c: ..here, add FUNCTION comment.
	* bfd-in.h (bfd_elf_bfd_from_remote_memory): Delete prototype.
	* bfd-in2.h: Regenerate.
This commit is contained in:
Alan Modra 2023-05-03 12:47:15 +09:30
parent d659ef9543
commit 37cfe371c4
4 changed files with 50 additions and 69 deletions
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22
bfd/bfd-in.h
View File

@ -427,28 +427,6 @@ extern void bfd_free_window
(bfd_window *);
extern bool bfd_get_file_window
(bfd *, file_ptr, bfd_size_type, bfd_window *, bool);
/* Externally visible ELF routines. */
/* Create a new BFD as if by bfd_openr. Rather than opening a file,
reconstruct an ELF file by reading the segments out of remote
memory based on the ELF file header at EHDR_VMA and the ELF program
headers it points to. If non-zero, SIZE is the known extent of the
object. If not null, *LOADBASEP is filled in with the difference
between the VMAs from which the segments were read, and the VMAs
the file headers (and hence BFD's idea of each section's VMA) put
them at.
The function TARGET_READ_MEMORY is called to copy LEN bytes from
the remote memory at target address VMA into the local buffer at
MYADDR; it should return zero on success or an `errno' code on
failure. TEMPL must be a BFD for a target with the word size and
byte order found in the remote memory. */
extern bfd *bfd_elf_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
bfd_size_type len));
/* Forward declarations. */
struct ecoff_debug_info;
struct ecoff_debug_swap;

27
bfd/bfd-in2.h
View File

@ -434,28 +434,6 @@ extern void bfd_free_window
(bfd_window *);
extern bool bfd_get_file_window
(bfd *, file_ptr, bfd_size_type, bfd_window *, bool);
/* Externally visible ELF routines. */
/* Create a new BFD as if by bfd_openr. Rather than opening a file,
reconstruct an ELF file by reading the segments out of remote
memory based on the ELF file header at EHDR_VMA and the ELF program
headers it points to. If non-zero, SIZE is the known extent of the
object. If not null, *LOADBASEP is filled in with the difference
between the VMAs from which the segments were read, and the VMAs
the file headers (and hence BFD's idea of each section's VMA) put
them at.
The function TARGET_READ_MEMORY is called to copy LEN bytes from
the remote memory at target address VMA into the local buffer at
MYADDR; it should return zero on success or an `errno' code on
failure. TEMPL must be a BFD for a target with the word size and
byte order found in the remote memory. */
extern bfd *bfd_elf_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
int (*target_read_memory) (bfd_vma vma, bfd_byte *myaddr,
bfd_size_type len));
/* Forward declarations. */
struct ecoff_debug_info;
struct ecoff_debug_swap;
@ -502,6 +480,11 @@ bfd *bfd_openr_iovec (const char *filename, const char *target,
bfd *bfd_openw (const char *filename, const char *target);
bfd *bfd_elf_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
int (*target_read_memory)
(bfd_vma vma, bfd_byte *myaddr, bfd_size_type len));
bool bfd_close (bfd *abfd);
bool bfd_close_all_done (bfd *);

25
bfd/elf.c
View File

@ -12863,31 +12863,6 @@ _bfd_elf_section_offset (bfd *abfd,
}
}
/* Create a new BFD as if by bfd_openr. Rather than opening a file,
reconstruct an ELF file by reading the segments out of remote memory
based on the ELF file header at EHDR_VMA and the ELF program headers it
points to. If not null, *LOADBASEP is filled in with the difference
between the VMAs from which the segments were read, and the VMAs the
file headers (and hence BFD's idea of each section's VMA) put them at.
The function TARGET_READ_MEMORY is called to copy LEN bytes from the
remote memory at target address VMA into the local buffer at MYADDR; it
should return zero on success or an `errno' code on failure. TEMPL must
be a BFD for an ELF target with the word size and byte order found in
the remote memory. */
bfd *
bfd_elf_bfd_from_remote_memory
(bfd *templ,
bfd_vma ehdr_vma,
bfd_size_type size,
bfd_vma *loadbasep,
int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type))
{
return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory)
(templ, ehdr_vma, size, loadbasep, target_read_memory);
}
long
_bfd_elf_get_synthetic_symtab (bfd *abfd,
long symcount ATTRIBUTE_UNUSED,

45
bfd/opncls.c
View File

@ -760,6 +760,51 @@ bfd_openw (const char *filename, const char *target)
return nbfd;
}
/*
FUNCTION
bfd_elf_bfd_from_remote_memory
SYNOPSIS
bfd *bfd_elf_bfd_from_remote_memory
(bfd *templ, bfd_vma ehdr_vma, bfd_size_type size, bfd_vma *loadbasep,
int (*target_read_memory)
(bfd_vma vma, bfd_byte *myaddr, bfd_size_type len));
DESCRIPTION
Create a new BFD as if by bfd_openr. Rather than opening a
file, reconstruct an ELF file by reading the segments out of
remote memory based on the ELF file header at EHDR_VMA and the
ELF program headers it points to. If non-zero, SIZE is the
known extent of the object. If not null, *LOADBASEP is filled
in with the difference between the VMAs from which the
segments were read, and the VMAs the file headers (and hence
BFD's idea of each section's VMA) put them at.
The function TARGET_READ_MEMORY is called to copy LEN bytes
from the remote memory at target address VMA into the local
buffer at MYADDR; it should return zero on success or an
errno code on failure. TEMPL must be a BFD for an ELF
target with the word size and byte order found in the remote
memory.
*/
bfd *
bfd_elf_bfd_from_remote_memory
(bfd *templ,
bfd_vma ehdr_vma,
bfd_size_type size,
bfd_vma *loadbasep,
int (*target_read_memory) (bfd_vma, bfd_byte *, bfd_size_type))
{
if (bfd_get_flavour (templ) != bfd_target_elf_flavour)
{
bfd_set_error (bfd_error_invalid_operation);
return NULL;
}
return (*get_elf_backend_data (templ)->elf_backend_bfd_from_remote_memory)
(templ, ehdr_vma, size, loadbasep, target_read_memory);
}
static inline void
_maybe_make_executable (bfd * abfd)
{