+2006-09-26 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/3223
+ PR ld/3267
+ * elf.c (assign_file_positions_for_non_load_sections): Don't
+ warn zero size allocated sections.
+
2006-09-27 Alan Modra <amodra@bigpond.net.au>
* elf32-score.c (_bfd_score_elf_relocate_section): Move assignment
hdr->sh_offset = hdr->bfd_section->filepos;
else if ((hdr->sh_flags & SHF_ALLOC) != 0)
{
- ((*_bfd_error_handler)
- (_("%B: warning: allocated section `%s' not in segment"),
- abfd,
- (hdr->bfd_section == NULL
- ? "*unknown*"
- : hdr->bfd_section->name)));
+ if (hdr->sh_size != 0)
+ ((*_bfd_error_handler)
+ (_("%B: warning: allocated section `%s' not in segment"),
+ abfd,
+ (hdr->bfd_section == NULL
+ ? "*unknown*"
+ : hdr->bfd_section->name)));
if ((abfd->flags & D_PAGED) != 0)
off += vma_page_aligned_bias (hdr->sh_addr, off,
bed->maxpagesize);
+2006-09-26 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/3223
+ PR ld/3267
+ * ld.texinfo: Updated Output Section Discarding.
+
+ * ldlang.h (lang_output_section_statement_type): Add
+ section_relative_symbol.
+ * ldlang.c (strip_excluded_output_sections): Don't strip a
+ section with a symbol relative to it.
+ (lang_size_sections_1): Mark if an output section has a symbol
+ symbol relative to it.
+
2006-09-25 Bob Wilson <bob.wilson@acm.org>
* ld.texinfo (Options): Update description of local symbols for -X.
contents. This is for convenience when referring to input sections that
may or may not be present in any of the input files. For example:
@smallexample
-.foo @{ *(.foo) @}
+.foo : @{ *(.foo) @}
@end smallexample
@noindent
will only create a @samp{.foo} section in the output file if there is a
If you use anything other than an input section description as an output
section command, such as a symbol assignment, then the output section
will always be created, even if there are no matching input sections.
+When a section is discarded, its address (@xref{Output Section Address})
+will also be ignored.
@cindex /DISCARD/
The special output section name @samp{/DISCARD/} may be used to discard
continue;
exclude = (output_section->rawsize == 0
+ && !os->section_relative_symbol
&& (output_section->flags & SEC_KEEP) == 0
&& !bfd_section_removed_from_list (output_bfd,
output_section));
case lang_assignment_statement_enum:
{
bfd_vma newdot = dot;
+ etree_type *tree = s->assignment_statement.exp;
- exp_fold_tree (s->assignment_statement.exp,
+ exp_fold_tree (tree,
output_section_statement->bfd_section,
&newdot);
+ /* This symbol is relative to this section. */
+ if ((tree->type.node_class == etree_provided
+ || tree->type.node_class == etree_assign)
+ && (tree->assign.dst [0] != '.'
+ || tree->assign.dst [1] != '\0'))
+ output_section_statement->section_relative_symbol = 1;
+
if (!output_section_statement->ignored)
{
if (output_section_statement == abs_output_section)
unsigned int processed_vma : 1;
unsigned int processed_lma : 1;
unsigned int all_input_readonly : 1;
+ /* If this section should be ignored. */
unsigned int ignored : 1;
+ /* If there is a symbol relative to this section. */
+ unsigned int section_relative_symbol : 1;
} lang_output_section_statement_type;
typedef struct
+2006-09-26 H.J. Lu <hongjiu.lu@intel.com>
+
+ PR ld/3223
+ PR ld/3267
+ * ld-scripts/empty-address-1.d: New file.
+ * ld-scripts/empty-address-1.s: Likewise.
+ * ld-scripts/empty-address-1.t: Likewise.
+ * ld-scripts/empty-address-2.s: Likewise.
+ * ld-scripts/empty-address-2a.d: Likewise.
+ * ld-scripts/empty-address-2a.t: Likewise.
+ * ld-scripts/empty-address-2b.d: Likewise.
+ * ld-scripts/empty-address-2b.t: Likewise.
+ * ld-scripts/empty-address-3.s: Likewise.
+ * ld-scripts/empty-address-3a.d: Likewise.
+ * ld-scripts/empty-address-3a.t: Likewise.
+ * ld-scripts/empty-address-3b.d: Likewise.
+ * ld-scripts/empty-address-3b.t: Likewise.
+ * ld-scripts/empty-address-3c.d: Likewise.
+ * ld-scripts/empty-address-3c.t: Likewise.
+ * ld-scripts/empty-address.exp: Likewise.
+
2006-09-21 Andreas Schwab <schwab@suse.de>
* ld-m68k/plt1-68020.d: Fix patterns to match also for 64-bit
--- /dev/null
+#ld: -T empty-address-1.t
+#nm: -n
+#...
+0+0 T _start
+#...
+0+2000000 A __data_end
+0+2000000 D __data_start
+#pass
--- /dev/null
+ .text
+ .global _start
+_start:
+ .long __data_start
+ .long __data_end
--- /dev/null
+SECTIONS
+{
+ .text 0x0000000: { *(.text) }
+ .data 0x2000000:
+ {
+ __data_start = . ;
+ *(.data)
+ }
+ __data_end = .;
+ /DISCARD/ : { *(.*) }
+}
--- /dev/null
+ .text
+ .global _start
+_start:
+ .long __data_end
+ .p2align 4
--- /dev/null
+#source: empty-address-2.s
+#ld: -Ttext 0x0000000 -Tdata 0x2000000 -T empty-address-2a.t
+#nm: -n
+#...
+0+0 T _start
+#...
+0+10 A __data_end
+#pass
--- /dev/null
+SECTIONS
+{
+ .text : { *(.text) }
+ .data : { *(.data) }
+ __data_end = .;
+ /DISCARD/ : { *(.*) }
+}
--- /dev/null
+#source: empty-address-2.s
+#ld: -Ttext 0x0000000 -Tdata 0x2000000 -T empty-address-2b.t
+#nm: -n
+#...
+0+0 T _start
+#...
+0+10 A __data_end
+#pass
--- /dev/null
+SECTIONS
+{
+ .text 0x0000000: { *(.text) }
+ .data :
+ {
+ PROVIDE (__data_start = .);
+ *(.data)
+ }
+ __data_end = .;
+ /DISCARD/ : { *(.*) }
+}
--- /dev/null
+ .text
+ .global _start
+_start:
+ .byte 0,0,0,0,0,0,0,0
+ .byte 0,0,0,0,0,0,0,0
--- /dev/null
+#source: empty-address-3.s
+#ld: -T empty-address-3a.t
+#nm: -n
+#...
+0+0 T _start
+#...
+0+10 A __data_end
+#pass
--- /dev/null
+SECTIONS
+{
+ .text 0x00000000: { *(.text) }
+ .data ALIGN(0x1000) + (. & (0x1000 - 1)):
+ {
+ *(.data)
+ }
+ __data_end = .;
+ /DISCARD/ : { *(.*) }
+}
--- /dev/null
+#source: empty-address-3.s
+#ld: -T empty-address-3b.t
+#nm: -n
+#...
+0+0 T _start
+#...
+0+10 A __data_end
+#pass
--- /dev/null
+SECTIONS
+{
+ .text 0x00000000: { *(.text) }
+ .data ALIGN(0x1000) + (. & (0x1000 - 1)):
+ {
+ PROVIDE (__data_start = .);
+ *(.data)
+ }
+ __data_end = .;
+ /DISCARD/ : { *(.*) }
+}
--- /dev/null
+#source: empty-address-3.s
+#ld: -T empty-address-3c.t
+#nm: -n
+#...
+0+0 T _start
+#...
+0+1010 A __data_end
+#...
+0+1010 D __data_start
+#pass
--- /dev/null
+SECTIONS
+{
+ .text 0x00000000: { *(.text) }
+ .data ALIGN(0x1000) + (. & (0x1000 - 1)):
+ {
+ __data_start = .;
+ *(.data)
+ }
+ __data_end = .;
+ /DISCARD/ : { *(.*) }
+}
--- /dev/null
+# Make sure that "dot" is updated for empty sections if their addresses
+# are set.
+# Copyright 2006
+# Free Software Foundation, Inc.
+#
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
+
+run_dump_test empty-address-1
+run_dump_test empty-address-2a
+run_dump_test empty-address-2b
+run_dump_test empty-address-3a
+run_dump_test empty-address-3b
+run_dump_test empty-address-3c
projects / deliverable / binutils-gdb.git / commitdiff
