riscv
/
binutils-gdb
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

* Crude support for examining dynamic libraries. 

* som.c (som_object_setup): Set DYNAMIC flag for SHL_MAGIC and
        DL_MAGIC objects.
        (som_prep_headers): Preserve the system_id for DYNAMIC objects.
        Use SHL_MAGIC as the magic number of the DYNAMIC flag is set.
        Write exec headers for DYNAMIC objects.
        (som_begin_writing): DYNAMIC objects have the same alignment
        restrictions as D_PAGED objects.
        (bfd_section_from_som_symbol): Treat DYNAMIC objects like EXEC_P
        objects.
        (object_flags): Add DYNAMIC.
gdb-4_18-branch
Jeff Law 33 years ago
parent
67808d3e6f
commit
65b1ef4963
2 changed files with 42 additions and 15 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 14
      bfd/ChangeLog
  2. 43
      bfd/som.c

14
bfd/ChangeLog
View File

@ -1,3 +1,17 @@
Tue Apr 5 22:10:04 1994 Jeffrey A. Law (law@snake.cs.utah.edu)
* Crude support for examining dynamic libraries.
* som.c (som_object_setup): Set DYNAMIC flag for SHL_MAGIC and
DL_MAGIC objects.
(som_prep_headers): Preserve the system_id for DYNAMIC objects.
Use SHL_MAGIC as the magic number of the DYNAMIC flag is set.
Write exec headers for DYNAMIC objects.
(som_begin_writing): DYNAMIC objects have the same alignment
restrictions as D_PAGED objects.
(bfd_section_from_som_symbol): Treat DYNAMIC objects like EXEC_P
objects.
(object_flags): Add DYNAMIC.
Tue Apr 5 17:48:52 1994 Stan Shebs (shebs@andros.cygnus.com)
* i386lynx.c, sparclynx.c (NAME): Remove embedded whitespace in

43
bfd/som.c
View File

@ -1579,6 +1579,15 @@ som_object_setup (abfd, file_hdrp, aux_hdrp)
case RELOC_MAGIC:
abfd->flags |= HAS_RELOC;
break;
#ifdef SHL_MAGIC
case SHL_MAGIC:
#endif
#ifdef DL_MAGIC
case DL_MAGIC:
#endif
abfd->flags |= DYNAMIC;
break;
default:
break;
}
@ -1955,17 +1964,21 @@ som_prep_headers (abfd)
/* FIXME. This should really be conditional based on whether or not
PA1.1 instructions/registers have been used. */
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
file_hdr->system_id = obj_som_exec_data (abfd)->system_id;
else
file_hdr->system_id = CPU_PA_RISC1_0;
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
{
if (abfd->flags & D_PAGED)
file_hdr->a_magic = DEMAND_MAGIC;
else if (abfd->flags & WP_TEXT)
file_hdr->a_magic = SHARE_MAGIC;
#ifdef SHL_MAGIC
else if (abfd->flags & DYNAMIC)
file_hdr->a_magic = SHL_MAGIC;
#endif
else
file_hdr->a_magic = EXEC_MAGIC;
}
@ -2754,7 +2767,7 @@ som_begin_writing (abfd)
we support only the copyright and version headers. */
obj_som_file_hdr (abfd)->aux_header_location = current_offset;
obj_som_file_hdr (abfd)->aux_header_size = 0;
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
{
/* Parts of the exec header will be filled in later, so
delay writing the header itself. Fill in the defaults,
@ -2945,7 +2958,7 @@ som_begin_writing (abfd)
building an executable, then take care to make sure all
the alignments are correct and update the exec header. */
if (first_subspace
&& (abfd->flags & EXEC_P))
&& (abfd->flags & (EXEC_P | DYNAMIC)))
{
/* Demand paged executables have each space aligned to a
page boundary. Sharable executables (write-protected
@ -2954,7 +2967,7 @@ som_begin_writing (abfd)
The HPUX kernel requires the text to always be page aligned
within the file regardless of the executable's type. */
if (abfd->flags & D_PAGED
if (abfd->flags & (D_PAGED | DYNAMIC)
|| (subsection->flags & SEC_CODE)
|| ((abfd->flags & WP_TEXT)
&& (subsection->flags & SEC_DATA)))
@ -2981,7 +2994,7 @@ som_begin_writing (abfd)
/* Only do this for the first subspace within each space. */
first_subspace = 0;
}
else if (abfd->flags & EXEC_P)
else if (abfd->flags & (EXEC_P | DYNAMIC))
{
/* The braindamaged HPUX loader may have created a hole
between two subspaces. It is *not* sufficient to use
@ -3009,10 +3022,10 @@ som_begin_writing (abfd)
if (subsection->flags & SEC_LOAD)
{
/* Update the size of the code & data. */
if (abfd->flags & EXEC_P
if (abfd->flags & (EXEC_P | DYNAMIC)
&& subsection->flags & SEC_CODE)
exec_header.exec_tsize += subsection->_cooked_size;
else if (abfd->flags & EXEC_P
else if (abfd->flags & (EXEC_P | DYNAMIC)
&& subsection->flags & SEC_DATA)
exec_header.exec_dsize += subsection->_cooked_size;
som_section_data (subsection)->subspace_dict->file_loc_init_value
@ -3025,7 +3038,7 @@ som_begin_writing (abfd)
else
{
/* Update the size of the bss section. */
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
exec_header.exec_bsize += subsection->_cooked_size;
som_section_data (subsection)->subspace_dict->file_loc_init_value
@ -3042,7 +3055,7 @@ som_begin_writing (abfd)
If building an executable, start the unloadable stuff on its
own page. */
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
obj_som_file_hdr (abfd)->unloadable_sp_location = current_offset;
@ -3055,7 +3068,7 @@ som_begin_writing (abfd)
while (!som_is_space (section))
section = section->next;
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
/* Now look for all its subspaces. */
@ -3094,7 +3107,7 @@ som_begin_writing (abfd)
/* If building an executable, then make sure to seek to and write
one byte at the end of the file to make sure any necessary
zeros are filled in. Ugh. */
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
current_offset = SOM_ALIGN (current_offset, PA_PAGESIZE);
if (bfd_seek (abfd, current_offset - 1, SEEK_SET) < 0)
return false;
@ -3112,7 +3125,7 @@ som_begin_writing (abfd)
obj_som_file_hdr (abfd)->som_length = current_offset;
/* Now write the exec header. */
if (abfd->flags & EXEC_P)
if (abfd->flags & (EXEC_P | DYNAMIC))
{
long tmp;
@ -3585,7 +3598,7 @@ bfd_section_from_som_symbol (abfd, symbol)
/* The meaning of the symbol_info field changes for functions
within executables. So only use the quick symbol_info mapping for
incomplete objects and non-function symbols in executables. */
if ((abfd->flags & EXEC_P) == 0
if ((abfd->flags & (EXEC_P | DYNAMIC)) == 0
|| (symbol->symbol_type != ST_ENTRY
&& symbol->symbol_type != ST_PRI_PROG
&& symbol->symbol_type != ST_SEC_PROG
@ -5514,7 +5527,7 @@ bfd_target som_vec =
true, /* target headers byte order */
(HAS_RELOC | EXEC_P | /* object flags */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | DYNAMIC),
(SEC_CODE | SEC_DATA | SEC_ROM | SEC_HAS_CONTENTS
| SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */

Write Preview
Loading…
Cancel
Save