diff options
| author | Mark Wielaard <[email protected]> | 2018-10-21 23:41:32 +0200 |
|---|---|---|
| committer | Mark Wielaard <[email protected]> | 2018-11-09 18:11:48 +0100 |
| commit | ecbe3120cddb1b9597a19a68c4265e4f2c530444 (patch) | |
| tree | 40f6549cda3aa5bff3df983f15ac88d0da597b72 /libdwfl/libdwflP.h | |
| parent | 4b0342b85b5b1a3d3636e06e3b5320954828dfb1 (diff) | |
libdwelf: New function dwelf_elf_begin.
This introduces a new function dwelf_elf_begin which creates a (read-only)
ELF handle from a possibly compressed file handle or a file that start
with a linux kernel header. This can be used in eu-readelf to (re)open a
(pure) ELF.
eu-readelf uses libdwfl to relocate addresses in the original file in
case it is ET_REL. But to show the "raw" data it might need to (re)open
the file. Which could fail if the file was compressed. And produced an
obscure error message: "cannot create EBL handle".
This rewrites __libdw_open_file a little so that the given file handle
will never be closed (whether on success or failure) and introduces a
new internal function __libdw_open_elf that dwelf_elf_begin wraps.
Signed-off-by: Mark Wielaard <[email protected]>
Diffstat (limited to 'libdwfl/libdwflP.h')
| -rw-r--r-- | libdwfl/libdwflP.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libdwfl/libdwflP.h b/libdwfl/libdwflP.h index 31e6e190..941a8b66 100644 --- a/libdwfl/libdwflP.h +++ b/libdwfl/libdwflP.h @@ -626,6 +626,10 @@ extern Dwfl_Error __libdw_open_file (int *fdp, Elf **elfp, bool close_on_fail, bool archive_ok) internal_function; +/* Same as __libdw_open_file, but never closes the given file + descriptor and ELF_K_AR is always an acceptable type. */ +extern Dwfl_Error __libdw_open_elf (int fd, Elf **elfp) internal_function; + /* Fetch PT_DYNAMIC P_VADDR from ELF and store it to *VADDRP. Return success. *VADDRP is not modified if the function fails. */ extern bool __libdwfl_dynamic_vaddr_get (Elf *elf, GElf_Addr *vaddrp) |