As originally reported as binutils PR ld/15057, several gfortran tests
are failing on Solaris/SPARC with Sun as and GNU ld like this:
FAIL: gfortran.dg/coarray/alloc_comp_1.f90 -fcoarray=lib -O2 -lcaf_single
(test for excess errors)
Excess errors:
/vol/gcc/bin/gld-2.23.1: warning: section `.bss' type changed to PROGBITS
As analyzed in the PR, this happens because .bss.* sections are not
marked as SHT_NOBITS when Sun as is in use. The following patch fixes
this; it should be low-risk since the result of the configure test
(necessary since only Solaris 10/SPARC as added #nobits/#progbits
support) is only used in a Solaris-specific function.
Bootstrapped without regressions on sparc-sun-solaris2.11 (as/gld,
gas/gld in progress), ok for mainline?
Rainer
2013-01-25 Rainer Orth <r...@cebitec.uni-bielefeld.de>
* configure.ac (HAVE_AS_SPARC_NOBITS): New test.
* configure: Regenerate.
* config.in: Regenerate.
* config/sparc/sparc.c (sparc_solaris_elf_asm_named_section): Emit
#nobits/#progbits if supported.
# HG changeset patch
# Parent 85fc0b8b3ae505640c01266617905fe671551692
Properly set progbits/nobits for Solaris/SPARC as
diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c
--- a/gcc/config/sparc/sparc.c
+++ b/gcc/config/sparc/sparc.c
@@ -9512,7 +9512,14 @@ sparc_solaris_elf_asm_named_section (con
if (flags & SECTION_CODE)
fputs (",#execinstr", asm_out_file);
- /* ??? Handle SECTION_BSS. */
+ /* Sun as only supports #nobits/#progbits since Solaris 10. */
+ if (HAVE_AS_SPARC_NOBITS)
+ {
+ if (flags & SECTION_BSS)
+ fputs (",#nobits", asm_out_file);
+ else
+ fputs (",#progbits", asm_out_file);
+ }
fputc ('\n', asm_out_file);
}
diff --git a/gcc/configure.ac b/gcc/configure.ac
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -3461,6 +3461,13 @@ case "$target" in
[AC_DEFINE(HAVE_AS_REGISTER_PSEUDO_OP, 1,
[Define if your assembler supports .register.])])
+ gcc_GAS_CHECK_FEATURE([@%:@nobits], gcc_cv_as_sparc_nobits,,,
+ [.section "nobits",#alloc,#write,#nobits
+ .section "progbits",#alloc,#write,#progbits])
+ AC_DEFINE_UNQUOTED(HAVE_AS_SPARC_NOBITS,
+ [`if test $gcc_cv_as_sparc_nobits = yes; then echo 1; else echo 0; fi`],
+ [Define to 1 if your assembler supports #nobits, 0 otherwise.])
+
gcc_GAS_CHECK_FEATURE([-relax option], gcc_cv_as_sparc_relax,,
[-relax], [.text],,
[AC_DEFINE(HAVE_AS_RELAX_OPTION, 1,
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University
