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PATCH: Use "__bss_start" instead of "_edata"
- From: "H. J. Lu" <hjl at lucon dot org>
- To: binutils at sources dot redhat dot com
- Date: Thu, 5 May 2005 09:37:28 -0700
- Subject: PATCH: Use "__bss_start" instead of "_edata"
"_edata" may not be defined due to the elf.sc change. I will check
into this patch to use "__bss_start" instead and document it in
elf.sc.
H.J.
---
bfd/
2005-05-05 H.J. Lu <hongjiu.lu@intel.com>
* elflink.c (_bfd_elf_provide_section_bound_symbols): Use
"__bss_start" instead of "_edata" as fallback.
ld/
2005-05-05 H.J. Lu <hongjiu.lu@intel.com>
* scripttempl/elf.sc: Document the usage of __bss_start.
--- binutils/bfd/elflink.c.bss 2005-05-05 07:50:03.000000000 -0700
+++ binutils/bfd/elflink.c 2005-05-05 09:31:17.000000000 -0700
@@ -9911,10 +9911,10 @@ _bfd_elf_provide_section_bound_symbols (
else
{
/* We have to choose those values very carefully. Some targets,
- like alpha, may have relocation overflow with 0. "_edata"
+ like alpha, may have relocation overflow with 0. "__bss_start"
should be defined in all cases. */
struct elf_link_hash_entry *h
- = elf_link_hash_lookup (elf_hash_table (info), "_edata",
+ = elf_link_hash_lookup (elf_hash_table (info), "__bss_start",
FALSE, FALSE, FALSE);
if (h != NULL && h->root.type == bfd_link_hash_defined)
start_val = h->root.u.def.value;
--- binutils/ld/scripttempl/elf.sc.bss 2005-05-05 07:45:30.000000000 -0700
+++ binutils/ld/scripttempl/elf.sc 2005-05-05 09:32:26.000000000 -0700
@@ -376,6 +376,8 @@ cat <<EOF
${SDATA}
${OTHER_SDATA_SECTIONS}
${RELOCATING+${DATA_END_SYMBOLS-_edata = .; PROVIDE (edata = .);}}
+ /* __bss_start is used by _bfd_elf_provide_section_bound_symbols in
+ elflink.c. */
${RELOCATING+__bss_start = .;}
${RELOCATING+${OTHER_BSS_SYMBOLS}}
${SBSS}