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Support hand-crafted .PARISC.unwind entries
- To: binutils at sourceware dot cygnus dot com
- Subject: Support hand-crafted .PARISC.unwind entries
- From: Alan Modra <alan at linuxcare dot com dot au>
- Date: Wed, 17 Jan 2001 00:46:40 +1100 (EST)
- cc: parisc-linux at puffin dot external dot hp dot com
This one is useful for _init and _fini and like functions that are spliced
together from pieces. The assembler can't create sensible unwind info for
such functions; This little hack allows a hand-crafted solution.
gas/ChangeLog
* config/tc-hppa.c (tc_gen_reloc): Use SEGREL32 instead of DIR32
relocs for .PARISC.unwind section.
Alan Modra
--
Linuxcare. Support for the Revolution.
Index: gas/config/tc-hppa.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-hppa.c,v
retrieving revision 1.77
diff -u -p -r1.77 tc-hppa.c
--- tc-hppa.c 2001/01/16 13:06:14 1.77
+++ tc-hppa.c 2001/01/16 13:39:00
@@ -4047,14 +4047,6 @@ tc_gen_reloc (section, fixp)
code = *codes[0];
- reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
- *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
- reloc->howto = bfd_reloc_type_lookup (stdoutput,
- (bfd_reloc_code_real_type) code);
- reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
-
- assert (reloc->howto && (unsigned int) code == reloc->howto->type);
-
/* Now, do any processing that is dependent on the relocation type. */
switch (code)
{
@@ -4088,10 +4080,24 @@ tc_gen_reloc (section, fixp)
break;
#endif
+ case R_PARISC_DIR32:
+ /* Facilitate hand-crafted unwind info. */
+ if (strcmp (section->name, UNWIND_SECTION_NAME) == 0)
+ code = R_PARISC_SEGREL32;
+ /* Fall thru */
+
default:
reloc->addend = fixp->fx_offset;
break;
}
+
+ reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
+ *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
+ reloc->howto = bfd_reloc_type_lookup (stdoutput,
+ (bfd_reloc_code_real_type) code);
+ reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
+
+ assert (reloc->howto && (unsigned int) code == reloc->howto->type);
break;
}
#else /* OBJ_SOM */