Re: c/8022: gcc 3.2 Solaris 64 bit shared libraries

[Nick Clifton <nickc@redhat.com>]

The following reply was made to PR target/8022; it has been noted by GNATS.

From: Nick Clifton <nickc@redhat.com>
To: hyc@symas.com, jsurveyor@macquarie.net.au
Cc: gcc-patches@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Subject: Re: c/8022: gcc 3.2 Solaris 64 bit shared libraries
Date: 03 Apr 2003 11:20:21 +0100

 Hi Hyc, Hi John
 
 > 64 bit binaries produced by gcc 3.x "-m64" option and compiled by
 > gas are unusable for shared libraries, by default. The gas --help
 > says "-TSO" is the default but it actually defaults to
 > "-RMO". /usr/ccs/bin/ld will link the object files without any
 > complaint, but the runtime linker barfs. This issue was first
 > reported on 
 >
 > http://gcc.gnu.org/ml/gcc-help/2002-06/msg00005.html
 > 
 > Adding "-TSO" to the specs file for the appropriate -m64 clauses
 > fixes the problem.
 
 I am applying this patch, approved by Jakub in a private email, to fix
 the problem.  With the patch applied, the specs file looks like this:
 
   *asm_cpu:
   %{mcpu=ultrasparc:%{!m64:-xarch=v8plusa}%{m64:-xarch=v9a -TSO}}
   %{mcpu=v9:%{!m64:-xarch=v8plus}%{m64:-xarch=v9 -TSO}}
   %{!mcpu=ultrasparc:%{!mcpu=v9:%{mcpu*:%{!m64:-xarch=v8}%{m64:-xarch=v9
   -TSO}}}} %{!mcpu*:%(asm_cpu_default)} 
 
   *asm_cpu_default:
   %{m64:-xarch=v9 -TSO} %{!m64:}
 
 
 Cheers
         Nick
 
 2003-04-03  Nick Clifton  <nickc@redhat.com>
 
 	* config/sparc/sol2-bi.h (ASM_CPU64_DEFAULT_SPEC): Add -TSO.
         (DEF_ARCH64_SPEC): Likewise.
 
 Index: gcc/config/sparc/sol2-bi.h
 ===================================================================
 RCS file: /cvs/gcc/gcc/gcc/config/sparc/sol2-bi.h,v
 retrieving revision 1.8
 diff -c -3 -p -w -r1.8 sol2-bi.h
 *** gcc/config/sparc/sol2-bi.h	3 Oct 2002 20:35:14 -0000	1.8
 --- gcc/config/sparc/sol2-bi.h	3 Apr 2003 10:12:15 -0000
 ***************
 *** 10,16 ****
   #undef ASM_CPU32_DEFAULT_SPEC
   #define ASM_CPU32_DEFAULT_SPEC	""
   #undef ASM_CPU64_DEFAULT_SPEC
 ! #define ASM_CPU64_DEFAULT_SPEC	AS_SPARC64_FLAG
   
   #if TARGET_CPU_DEFAULT == TARGET_CPU_v9
   #undef CPP_CPU64_DEFAULT_SPEC
 --- 10,16 ----
   #undef ASM_CPU32_DEFAULT_SPEC
   #define ASM_CPU32_DEFAULT_SPEC	""
   #undef ASM_CPU64_DEFAULT_SPEC
 ! #define ASM_CPU64_DEFAULT_SPEC	AS_SPARC64_FLAG " -TSO"
   
   #if TARGET_CPU_DEFAULT == TARGET_CPU_v9
   #undef CPP_CPU64_DEFAULT_SPEC
 ***************
 *** 24,38 ****
   #undef ASM_CPU32_DEFAULT_SPEC
   #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusa"
   #undef ASM_CPU64_DEFAULT_SPEC
 ! #define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "a"
   #endif
   
   #if DEFAULT_ARCH32_P
   #define DEF_ARCH32_SPEC(__str) "%{!m64:" __str "}"
 ! #define DEF_ARCH64_SPEC(__str) "%{m64:" __str "}"
   #else
   #define DEF_ARCH32_SPEC(__str) "%{m32:" __str "}"
 ! #define DEF_ARCH64_SPEC(__str) "%{!m32:" __str "}"
   #endif
   
   #undef CPP_CPU_SPEC
 --- 24,38 ----
   #undef ASM_CPU32_DEFAULT_SPEC
   #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusa"
   #undef ASM_CPU64_DEFAULT_SPEC
 ! #define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "a -TSO"
   #endif
   
   #if DEFAULT_ARCH32_P
   #define DEF_ARCH32_SPEC(__str) "%{!m64:" __str "}"
 ! #define DEF_ARCH64_SPEC(__str) "%{m64:" __str " -TSO}"
   #else
   #define DEF_ARCH32_SPEC(__str) "%{m32:" __str "}"
 ! #define DEF_ARCH64_SPEC(__str) "%{!m32:" __str " -TSO}"
   #endif
   
   #undef CPP_CPU_SPEC