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authorH.J. Lu <hjl.tools@gmail.com>2005-03-23 04:14:46 +0000
committerH.J. Lu <hjl.tools@gmail.com>2005-03-23 04:14:46 +0000
commit81e1b023da77edb3576be645e73332a03407346c (patch)
treeb42b489d2b926754e85a31a187d72b3290975897 /ld/emultempl
parent1ec0126d51dac1afdf19ef609cf1b35864d73247 (diff)
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bfd/
2005-03-22 H.J. Lu <hongjiu.lu@intel.com> * bfd-in.h (_bfd_elf_provide_symbol): New. * bfd-in2.h: Regenerated. * elf32-ppc.c (set_linker_sym): Moved to elflink.c. (ppc_elf_set_sdata_syms): Call _bfd_elf_provide_symbol instead of set_linker_sym. * elflink.c (_bfd_elf_provide_symbol): New. Moved and renamed from elf32-ppc.c. ld/ 2005-03-22 H.J. Lu <hongjiu.lu@intel.com> * emultempl/elf32.em (gld${EMULATION_NAME}_provide_bound_symbols): New (gld${EMULATION_NAME}_finish): Call gld${EMULATION_NAME}_provide_bound_symbols to provide __preinit_array_start, __preinit_array_end, __init_array_start, __init_array_end, __fini_array_start and __fini_array_end. * scripttempl/elf.sc: Don't provide __preinit_array_start, __preinit_array_end, __init_array_start, __init_array_end, __fini_array_start nor __fini_array_end.
Diffstat (limited to 'ld/emultempl')
-rw-r--r--ld/emultempl/elf32.em51
1 files changed, 51 insertions, 0 deletions
diff --git a/ld/emultempl/elf32.em b/ld/emultempl/elf32.em
index 00805d5..b2d2a7c 100644
--- a/ld/emultempl/elf32.em
+++ b/ld/emultempl/elf32.em
@@ -1428,6 +1428,29 @@ if test x"$LDEMUL_FINISH" != xgld"$EMULATION_NAME"_finish; then
cat >>e${EMULATION_NAME}.c <<EOF
static void
+gld${EMULATION_NAME}_provide_bound_symbols (const char *sec,
+ const char *start,
+ const char *end)
+{
+ asection *s;
+ bfd_vma start_val, end_val;
+
+ s = bfd_get_section_by_name (output_bfd, sec);
+ if (s != NULL)
+ {
+ start_val = s->vma;
+ end_val = start_val + s->size;
+ }
+ else
+ {
+ start_val = 0;
+ end_val = 0;
+ }
+ _bfd_elf_provide_symbol (&link_info, start, start_val);
+ _bfd_elf_provide_symbol (&link_info, end, end_val);
+}
+
+static void
gld${EMULATION_NAME}_finish (void)
{
if (bfd_elf_discard_info (output_bfd, &link_info))
@@ -1472,6 +1495,34 @@ gld${EMULATION_NAME}_finish (void)
}
}
}
+
+ /* If not building shared library, provide
+
+ __preinit_array_start
+ __preinit_array_end
+ __init_array_start
+ __init_array_end
+ __fini_array_start
+ __fini_array_end
+
+ They are set here rather than via PROVIDE in the linker
+ script, because using PROVIDE inside an output section
+ statement results in unnecessary output sections. Using
+ PROVIDE outside an output section statement runs the risk of
+ section alignment affecting where the section starts. */
+
+ if (!link_info.shared)
+ {
+ gld${EMULATION_NAME}_provide_bound_symbols
+ (".preinit_array", "__preinit_array_start",
+ "__preinit_array_end");
+ gld${EMULATION_NAME}_provide_bound_symbols
+ (".init_array", "__init_array_start",
+ "__init_array_end");
+ gld${EMULATION_NAME}_provide_bound_symbols
+ (".fini_array", "__fini_array_start",
+ "__fini_array_end");
+ }
}
}
EOF