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Assign file position for .strtab only if needed

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bfd/

	PR ld/17773
	* elflink.c (bfd_elf_final_link): Assign the file position for
	the symbol string table only there are symbols to be emitted.

ld/testsuite/

	PR ld/17773
	* ld-elf/binutils.exp (binutils_test): Add an optional
	readelf_options.  Replace -l with $readelf_options.  Add a
	gap test.
	* ld/testsuite/ld-elf/gap.s: New file.
This commit is contained in:
H.J. Lu 2014-12-30 19:09:11 -08:00
parent 24fbeb8dc2
commit ee3b52e917
5 changed files with 47 additions and 24 deletions
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6
bfd/ChangeLog
View File

@ -1,3 +1,9 @@
2014-12-30 H.J. Lu <hongjiu.lu@intel.com>
PR ld/17773
* elflink.c (bfd_elf_final_link): Assign the file position for
the symbol string table only there are symbols to be emitted.
2014-12-28 Alan Modra <amodra@gmail.com>
PR 17766

38
bfd/elflink.c
View File

@ -10614,7 +10614,6 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
unsigned int i;
Elf_Internal_Shdr *symtab_hdr;
Elf_Internal_Shdr *symtab_shndx_hdr;
Elf_Internal_Shdr *symstrtab_hdr;
const struct elf_backend_data *bed = get_elf_backend_data (abfd);
struct elf_outext_info eoinfo;
bfd_boolean merged;
@ -11315,25 +11314,28 @@ bfd_elf_final_link (bfd *abfd, struct bfd_link_info *info)
}
/* Finish up and write out the symbol string table (.strtab)
section. */
symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr;
/* sh_name was set in prep_headers. */
symstrtab_hdr->sh_type = SHT_STRTAB;
symstrtab_hdr->sh_flags = 0;
symstrtab_hdr->sh_addr = 0;
symstrtab_hdr->sh_size = _bfd_stringtab_size (flinfo.symstrtab);
symstrtab_hdr->sh_entsize = 0;
symstrtab_hdr->sh_link = 0;
symstrtab_hdr->sh_info = 0;
/* sh_offset is set just below. */
symstrtab_hdr->sh_addralign = 1;
off = _bfd_elf_assign_file_position_for_section (symstrtab_hdr, off, TRUE);
elf_next_file_pos (abfd) = off;
if (bfd_get_symcount (abfd) > 0)
{
/* Finish up and write out the symbol string table (.strtab)
section. */
Elf_Internal_Shdr *symstrtab_hdr;
symstrtab_hdr = &elf_tdata (abfd)->strtab_hdr;
/* sh_name was set in prep_headers. */
symstrtab_hdr->sh_type = SHT_STRTAB;
symstrtab_hdr->sh_flags = 0;
symstrtab_hdr->sh_addr = 0;
symstrtab_hdr->sh_size = _bfd_stringtab_size (flinfo.symstrtab);
symstrtab_hdr->sh_entsize = 0;
symstrtab_hdr->sh_link = 0;
symstrtab_hdr->sh_info = 0;
/* sh_offset is set just below. */
symstrtab_hdr->sh_addralign = 1;
off = _bfd_elf_assign_file_position_for_section (symstrtab_hdr,
off, TRUE);
elf_next_file_pos (abfd) = off;
if (bfd_seek (abfd, symstrtab_hdr->sh_offset, SEEK_SET) != 0
|| ! _bfd_stringtab_emit (abfd, flinfo.symstrtab))
return FALSE;

8
ld/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2014-12-30 H.J. Lu <hongjiu.lu@intel.com>
PR ld/17773
* ld-elf/binutils.exp (binutils_test): Add an optional
readelf_options. Replace -l with $readelf_options. Add a
gap test.
* ld/testsuite/ld-elf/gap.s: New file.
2014-12-26 Alan Modra <amodra@gmail.com>
* ld-sh/sh64/crangerel1.rd: Update.

15
ld/testsuite/ld-elf/binutils.exp
View File

@ -38,8 +38,9 @@ if { [istarget *-*-linux*aout*]
# to hardwire the test name. This is important if ld_options contains
# absolute path names because the default test name is constructed
# from the prog_name and ld_options and we do not want absolute paths
# to appear in the test_name.
proc binutils_test { prog_name ld_options test {test_name ""}} {
# to appear in the test_name. The optional readelf_options can be
# used to specify different options for readelf.
proc binutils_test { prog_name ld_options test {test_name ""} {readelf_options "-l"}} {
global as
global ld
global READELF
@ -71,8 +72,8 @@ proc binutils_test { prog_name ld_options test {test_name ""}} {
return
}
send_log "$READELF -l --wide tmpdir/$test > tmpdir/$test.exp\n"
set got [remote_exec host "$READELF -l --wide tmpdir/$test" "" "/dev/null" "tmpdir/$test.exp"]
send_log "$READELF $readelf_options --wide tmpdir/$test > tmpdir/$test.exp\n"
set got [remote_exec host "$READELF $readelf_options --wide tmpdir/$test" "" "/dev/null" "tmpdir/$test.exp"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
send_log "$got\n"
unresolved "$test_name"
@ -111,8 +112,8 @@ proc binutils_test { prog_name ld_options test {test_name ""}} {
return
}
send_log "$READELF -l --wide tmpdir/$test > tmpdir/$test.out\n"
set got [remote_exec host "$READELF -l --wide tmpdir/$test" "" "/dev/null" "tmpdir/$test.out"]
send_log "$READELF $readelf_options --wide tmpdir/$test > tmpdir/$test.out\n"
set got [remote_exec host "$READELF $readelf_options --wide tmpdir/$test" "" "/dev/null" "tmpdir/$test.out"]
if { [lindex $got 0] != 0 || ![string match "" [lindex $got 1]] } then {
send_log "$got\n"
unresolved "$test_name"
@ -176,3 +177,5 @@ foreach testitem $tls_tests {
binutils_test objcopy $testopt $testitem
}
}
binutils_test strip "-s" gap "" "-lS"

4
ld/testsuite/ld-elf/gap.s Normal file
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@ -0,0 +1,4 @@
.text
.global _start
_start:
.long 0