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* som.c (som_object_setup): New heuristic to determine if the 

entry and flags fields are switched in the exec header.
This commit is contained in:
Jeff Law 1995-01-28 19:50:52 +00:00
parent 333a8ddecf
commit fede999213
2 changed files with 17 additions and 6 deletions
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5
bfd/ChangeLog
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@ -1,3 +1,8 @@
Sat Jan 28 12:48:57 1995 Jeff Law (law@snake.cs.utah.edu)
* som.c (som_object_setup): New heuristic to determine if the
entry and flags fields are switched in the exec header.
Sat Jan 28 00:16:01 1995 Ian Lance Taylor <ian@cygnus.com>
* elfcode.h (elf_link_add_object_symbols): Use *sym_hash instead

18
bfd/som.c
View File

@ -226,7 +226,7 @@ static boolean som_write_symbol_strings PARAMS ((bfd *, unsigned long,
asymbol **, unsigned int,
unsigned *));
static boolean som_begin_writing PARAMS ((bfd *));
static const reloc_howto_type * som_bfd_reloc_type_lookup
static reloc_howto_type * som_bfd_reloc_type_lookup
PARAMS ((bfd *, bfd_reloc_code_real_type));
static char som_section_type PARAMS ((const char *));
static int som_decode_symclass PARAMS ((asymbol *));
@ -1548,7 +1548,7 @@ hppa_som_gen_reloc_type (abfd, base_type, format, field)
howto table. */
/*ARGSUSED*/
static const reloc_howto_type *
static reloc_howto_type *
som_bfd_reloc_type_lookup (abfd, code)
bfd *abfd;
bfd_reloc_code_real_type code;
@ -1618,10 +1618,16 @@ som_object_setup (abfd, file_hdrp, aux_hdrp)
/* The braindamaged OSF1 linker switched exec_flags and exec_entry!
It seems rather backward that the OSF1 linker which is much
older than any HPUX linker I've got uses a newer SOM version
id... But that's what I've found by experimentation. */
if (file_hdrp->version_id == NEW_VERSION_ID)
We used to identify OSF1 binaries based on NEW_VERSION_ID, but
apparently the latest HPUX linker is using NEW_VERSION_ID now.
It's about time, OSF has used the new id since at least 1992;
HPUX didn't start till nearly 1995!.
The new approach examines the entry field. If it's zero or not 4
byte aligned then it's not a proper code address and we guess it's
really the executable flags. */
if (aux_hdrp->exec_entry == 0 || (aux_hdrp->exec_entry & 0x3) != 0)
{
bfd_get_start_address (abfd) = aux_hdrp->exec_flags;
obj_som_exec_data (abfd)->exec_flags = aux_hdrp->exec_entry;