+Fri Oct 27 17:59:09 1995 Ian Lance Taylor <ian@cygnus.com>
+
+ * emultempl/aix.em: Include ldctor.h.
+ (gld${EMULATION_NAME}_after_open): New static function.
+ (gld${EMULATION_NAME}_before_allocation): Call find_relocs.
+ (gld${EMULATION_NAME}_find_relocs): New static function.
+ (gld${EMULATION_NAME}_find_exp_assignment): New static function.
+ (ld_${EMULATION_NAME}_emulation): Use new after_open function.
+ * scripttempl/aix.sc: Use CONSTRUCTORS in .data.
+ * ldctor.c (struct set_info): Move definition into ldctor.h.
+ (struct set_element): Likewise.
+ (sets): Make non-static.
+ (ldctor_add_set_entry): Add name parameter. Save it in the new
+ set element.
+ (ldctor_build_sets): Avoid being called twice. Pass set element
+ name to lang_add_reloc.
+ * ldctor.h (struct set_info): Move definition here from ldctor.c.
+ (struct set_element): Likewise. Add new field name.
+ (sets): Declare.
+ (ldctor_add_set_entry): Declare new name parameter.
+ * ldwrite.c (build_link_order): Don't insist that either name or
+ section be NULL in a lang_reloc_statement.
+ * ldmain.c (add_to_set): Pass NULL to ldctor_add_new_set_entry for
+ new name parameter.
+ (constructor_callback): Pass name to ldctor_add_new_set_entry for
+ new name parameter.
+
+ * ldmisc.c (demangle): Fix indentation. Remove a leading period.
+
Thu Oct 26 22:22:49 1995 Stan Shebs <shebs@andros.cygnus.com>
* mpw-config.in: Add PowerMac target support, generate config.h.
#include "ldmisc.h"
#include "ldexp.h"
#include "ldlang.h"
+#include "ldctor.h"
static void gld${EMULATION_NAME}_before_parse PARAMS ((void));
static int gld${EMULATION_NAME}_parse_args PARAMS ((int, char **));
+static void gld${EMULATION_NAME}_after_open PARAMS ((void));
static void gld${EMULATION_NAME}_before_allocation PARAMS ((void));
static void gld${EMULATION_NAME}_read_file PARAMS ((const char *, boolean));
static void gld${EMULATION_NAME}_free PARAMS ((PTR));
+static void gld${EMULATION_NAME}_find_relocs
+ PARAMS ((lang_statement_union_type *));
+static void gld${EMULATION_NAME}_find_exp_assignment PARAMS ((etree_type *));
static char *gld${EMULATION_NAME}_get_script PARAMS ((int *isfile));
/* The file alignment required for each section. */
return 1;
}
+/* This is called after the input files have been opened. */
+
+static void
+gld${EMULATION_NAME}_after_open ()
+{
+ boolean r;
+ struct set_info *p;
+
+ /* Call ldctor_build_sets, after pretending that this is a
+ relocateable link. We do this because AIX requires relocation
+ entries for all references to symbols, even in a final
+ executable. */
+ r = link_info.relocateable;
+ link_info.relocateable = true;
+ ldctor_build_sets ();
+ link_info.relocateable = r;
+
+ /* For each set, record the size, so that the XCOFF backend can
+ output the correct csect length. */
+ for (p = sets; p != (struct set_info *) NULL; p = p->next)
+ {
+ bfd_size_type size;
+
+ /* If the symbol is defined, we may have been invoked from
+ collect, and the sets may already have been built, so we do
+ not do anything. */
+ if (p->h->type == bfd_link_hash_defined
+ || p->h->type == bfd_link_hash_defweak)
+ continue;
+
+ if (p->reloc != BFD_RELOC_CTOR)
+ {
+ /* Handle this if we need to. */
+ abort ();
+ }
+
+ size = (p->count + 2) * 4;
+ if (! bfd_xcoff_link_record_set (output_bfd, &link_info, p->h, size))
+ einfo ("%F%P: bfd_xcoff_link_record_set failed: %E\n");
+ }
+}
+
/* This is called after the sections have been attached to output
sections, but before any sizes or addresses have been set. */
for (fl = export_files; fl != NULL; fl = fl->next)
gld${EMULATION_NAME}_read_file (fl->name, false);
+ /* Track down all relocations called for by the linker script (these
+ are typically constructor/destructor entries created by
+ CONSTRUCTORS) and let the backend know it will need to create
+ .loader relocs for them. */
+ lang_for_each_statement (gld${EMULATION_NAME}_find_relocs);
+
/* We need to build LIBPATH from the -L arguments. If any -rpath
arguments were used, though, we use -rpath instead, as a GNU
extension. */
free (p);
}
+/* This is called by the before_allocation routine via
+ lang_for_each_statement. It looks for relocations and assignments
+ to symbols. */
+
+static void
+gld${EMULATION_NAME}_find_relocs (s)
+ lang_statement_union_type *s;
+{
+ if (s->header.type == lang_reloc_statement_enum)
+ {
+ lang_reloc_statement_type *rs;
+
+ rs = &s->reloc_statement;
+ if (rs->name == NULL)
+ einfo ("%F%P: only relocations against symbols are permitted\n");
+ if (! bfd_xcoff_link_count_reloc (output_bfd, &link_info, rs->name))
+ einfo ("%F%P: bfd_xcoff_link_count_reloc failed: %E\n");
+ }
+
+ if (s->header.type == lang_assignment_statement_enum)
+ gld${EMULATION_NAME}_find_exp_assignment (s->assignment_statement.exp);
+}
+
+/* Look through an expression for an assignment statement. */
+
+static void
+gld${EMULATION_NAME}_find_exp_assignment (exp)
+ etree_type *exp;
+{
+ struct bfd_link_hash_entry *h;
+
+ switch (exp->type.node_class)
+ {
+ case etree_provide:
+ h = bfd_link_hash_lookup (link_info.hash, exp->assign.dst,
+ false, false, false);
+ if (h == NULL)
+ break;
+ /* Fall through. */
+ case etree_assign:
+ if (strcmp (exp->assign.dst, ".") != 0)
+ {
+ if (! bfd_xcoff_record_link_assignment (output_bfd, &link_info,
+ exp->assign.dst))
+ einfo ("%P%F: failed to record assignment to %s: %E\n",
+ exp->assign.dst);
+ }
+ gld${EMULATION_NAME}_find_exp_assignment (exp->assign.src);
+ break;
+
+ case etree_binary:
+ gld${EMULATION_NAME}_find_exp_assignment (exp->binary.lhs);
+ gld${EMULATION_NAME}_find_exp_assignment (exp->binary.rhs);
+ break;
+
+ case etree_trinary:
+ gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.cond);
+ gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.lhs);
+ gld${EMULATION_NAME}_find_exp_assignment (exp->trinary.rhs);
+ break;
+
+ case etree_unary:
+ gld${EMULATION_NAME}_find_exp_assignment (exp->unary.child);
+ break;
+
+ default:
+ break;
+ }
+}
+
static char *
gld${EMULATION_NAME}_get_script(isfile)
int *isfile;
syslib_default,
hll_default,
after_parse_default,
- after_open_default,
+ gld${EMULATION_NAME}_after_open,
after_allocation_default,
set_output_arch_default,
ldemul_default_target,
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