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* nlmconv.c (secsec): New static variable. 

(main): Create .nlmsections section in output BFD.  Store
	information about it in sections header.
	(setup_sections): Allocate space in sections header.
	(copy_sections): Copy zero sized sections.  Put information about
	each section in the sections header.
gdb-4_18-branch
Ian Lance Taylor 33 years ago
parent
6c534df0c9
commit
dcb210cb09
2 changed files with 84 additions and 3 deletions
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  1. 9
      binutils/ChangeLog
  2. 78
      binutils/nlmconv.c

9
binutils/ChangeLog
View File

@ -1,3 +1,12 @@
Thu Apr 21 12:12:26 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
* nlmconv.c (secsec): New static variable.
(main): Create .nlmsections section in output BFD. Store
information about it in sections header.
(setup_sections): Allocate space in sections header.
(copy_sections): Copy zero sized sections. Put information about
each section in the sections header.
Wed Apr 20 14:34:51 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
start-sanitize-powerpc-netware

78
binutils/nlmconv.c
View File

@ -87,6 +87,20 @@ static int debug;
/* The symbol table. */
static asymbol **symbols;
/* A section we create in the output file to hold pointers to where
the sections of the input file end up. We will put a pointer to
this section in the NLM header. These is an entry for each input
section. The format is
null terminated section name
zeroes to adjust to 4 byte boundary
4 byte section data file pointer
4 byte section size
We don't need a version number. The way we find this information
is by finding a stamp in the NLM header information. If we need to
change the format of this information, we can simply change the
stamp. */
static asection *secsec;
/* A temporary file name to be unlinked on exit. Actually, for most
errors, we leave it around. It's not clear whether that is helpful
or not. */
@ -376,6 +390,16 @@ main (argc, argv)
|| ! bfd_set_section_alignment (outbfd, bss_sec, 1))
bfd_fatal ("make .bss section");
}
/* We store the original section names in the .nlmsections section,
so that programs which understand it can resurrect the original
sections from the NLM. We will put a pointer to .nlmsections in
the NLM header area. */
secsec = bfd_make_section (outbfd, ".nlmsections");
if (secsec == NULL)
bfd_fatal ("make .nlmsections section");
if (! bfd_set_section_flags (outbfd, secsec, SEC_HAS_CONTENTS))
bfd_fatal ("set .nlmsections flags");
/* start-sanitize-powerpc-netware */
/* For PowerPC NetWare we need to build stubs for calls to undefined
@ -840,6 +864,8 @@ main (argc, argv)
is what NLMLINK does. */
strncpy (nlm_extended_header (outbfd)->stamp, "MeSsAgEs", 8);
strncpy (nlm_cygnus_section_header (outbfd)->stamp, "CyGnUsSeCs", 10);
/* If the date was not given, force it in. */
if (nlm_version_header (outbfd)->month == 0
&& nlm_version_header (outbfd)->day == 0
@ -1052,6 +1078,10 @@ main (argc, argv)
strncpy (nlm_variable_header (outbfd)->oldThreadName, " LONG",
NLM_OLD_THREAD_NAME_LENGTH);
nlm_cygnus_section_header (outbfd)->offset = secsec->filepos;
nlm_cygnus_section_header (outbfd)->length =
bfd_section_size (outbfd, secsec);
if (! bfd_close (outbfd))
bfd_fatal (output_file);
if (! bfd_close (inbfd))
@ -1138,6 +1168,7 @@ setup_sections (inbfd, insec, data_ptr)
bfd_vma offset;
bfd_size_type align;
bfd_size_type add;
bfd_size_type secsecsize;
/* FIXME: We don't want to copy the .reginfo section of an ECOFF
file. However, I don't have a good way to describe this section.
@ -1187,6 +1218,15 @@ setup_sections (inbfd, insec, data_ptr)
bfd_fatal ("set section flags");
bfd_set_reloc (outbfd, outsec, (arelent **) NULL, 0);
/* For each input section we allocate space for an entry in
.nlmsections. */
secsecsize = bfd_section_size (outbfd, secsec);
secsecsize += strlen (bfd_section_name (inbfd, insec)) + 1;
secsecsize = (secsecsize + 3) &~ 3;
secsecsize += 8;
if (! bfd_set_section_size (outbfd, secsec, secsecsize))
bfd_fatal ("set .nlmsections size");
}
/* Copy the section contents. */
@ -1197,25 +1237,29 @@ copy_sections (inbfd, insec, data_ptr)
asection *insec;
PTR data_ptr;
{
static bfd_size_type secsecoff = 0;
bfd *outbfd = (bfd *) data_ptr;
const char *inname;
asection *outsec;
bfd_size_type size;
PTR contents;
long reloc_size;
bfd_byte buf[4];
bfd_size_type add;
inname = bfd_section_name (inbfd, insec);
/* FIXME: We don't want to copy the .reginfo section of an ECOFF
file. However, I don't have a good way to describe this section.
We do want to copy the section when using objcopy. */
if (bfd_get_flavour (inbfd) == bfd_target_ecoff_flavour
&& strcmp (bfd_section_name (inbfd, insec), ".reginfo") == 0)
&& strcmp (inname, ".reginfo") == 0)
return;
outsec = insec->output_section;
assert (outsec != NULL);
size = bfd_get_section_size_before_reloc (insec);
if (size == 0)
return;
/* FIXME: Why are these necessary? */
insec->_cooked_size = insec->_raw_size;
@ -1273,6 +1317,34 @@ copy_sections (inbfd, insec, data_ptr)
bfd_fatal (bfd_get_filename (outbfd));
free (contents);
}
/* Add this section to .nlmsections. */
if (! bfd_set_section_contents (outbfd, secsec, (PTR) inname, secsecoff,
strlen (inname) + 1))
bfd_fatal ("set .nlmsection contents");
secsecoff += strlen (inname) + 1;
add = ((secsecoff + 3) &~ 3) - secsecoff;
if (add != 0)
{
bfd_h_put_32 (outbfd, (bfd_vma) 0, buf);
if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, add))
bfd_fatal ("set .nlmsection contents");
secsecoff += add;
}
if (contents != NULL)
bfd_h_put_32 (outbfd, (bfd_vma) outsec->filepos, buf);
else
bfd_h_put_32 (outbfd, (bfd_vma) 0, buf);
if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4))
bfd_fatal ("set .nlmsection contents");
secsecoff += 4;
bfd_h_put_32 (outbfd, (bfd_vma) size, buf);
if (! bfd_set_section_contents (outbfd, secsec, buf, secsecoff, 4))
bfd_fatal ("set .nlmsection contents");
secsecoff += 4;
}
/* Some, perhaps all, NetWare targets require changing the relocs used

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