Re: [PATCH] hurd: align -p and -pg behavior on Linux

[Thomas Schwinge]

Hi!

On Wed, 24 Feb 2016 23:46:36 +0100, I wrote:
> On Sat, 19 Sep 2015 14:00:23 +0200, Samuel Thibault <samuel.thibault@gnu.org> 
> wrote:
> > On Linux, -p and -pg do not make gcc link against libc_p.a, only
> > -profile does (as documented in r11246), and thus people expect -p
> 
> (Yo, 20 years ago...)
> 
> > and -pg to work without libc_p.a installed (it is actually even not
> > available any more in Debian).  We should thus rather make the Hurd port
> > do the same to avoid build failures.
> 
> Conceptually, ACK.

> I'm now testing the following patch:

Now committed in r234535:

commit 9b2eb5d3268cf674f9a6964479f20428e0b43500
Author: tschwinge <tschwinge@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Tue Mar 29 21:17:53 2016 +0000

    [Hurd] Specs maintenance
    
        gcc/
        * config/gnu.h (CPP_SPEC, LIB_SPEC): Don't override.
        * config/i386/gnu.h (STARTFILE_SPEC): Use gcrt1.o instead of
        gcrt0.o if linking dynamically.
    
    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@234535 
138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog         | 6 ++++++
 gcc/config/gnu.h      | 8 --------
 gcc/config/i386/gnu.h | 4 ++--
 3 files changed, 8 insertions(+), 10 deletions(-)

diff --git gcc/ChangeLog gcc/ChangeLog
index 866531f..37e2504 100644
--- gcc/ChangeLog
+++ gcc/ChangeLog
@@ -1,3 +1,9 @@
+2016-03-29  Thomas Schwinge  <thomas@codesourcery.com>
+
+       * config/gnu.h (CPP_SPEC, LIB_SPEC): Don't override.
+       * config/i386/gnu.h (STARTFILE_SPEC): Use gcrt1.o instead of
+       gcrt0.o if linking dynamically.
+
 2016-03-10  Jan Hubicka  <hubicka@ucw.cz>
 
        PR ipa/70283
diff --git gcc/config/gnu.h gcc/config/gnu.h
index 1d98ec8..1dbecda 100644
--- gcc/config/gnu.h
+++ gcc/config/gnu.h
@@ -19,14 +19,6 @@ You should have received a copy of the GNU General Public 
License
 along with GCC.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-/* Provide GCC options for standard feature-test macros.  */
-#undef CPP_SPEC
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
-
-/* Default C library spec.  */
-#undef LIB_SPEC
-#define LIB_SPEC "%{pthread:-lpthread} %{pg|p|profile:-lc_p;:-lc}"
-
 #undef GNU_USER_TARGET_OS_CPP_BUILTINS
 #define GNU_USER_TARGET_OS_CPP_BUILTINS()              \
     do {                                       \
diff --git gcc/config/i386/gnu.h gcc/config/i386/gnu.h
index c726d31..9d2f94f 100644
--- gcc/config/i386/gnu.h
+++ gcc/config/i386/gnu.h
@@ -27,11 +27,11 @@ along with GCC.  If not, see <http://www.gnu.org/licenses/>.
 #undef STARTFILE_SPEC
 #if defined HAVE_LD_PIE
 #define STARTFILE_SPEC \
-  "%{!shared: 
%{pg|p|profile:gcrt0.o%s;pie:Scrt1.o%s;static:crt0.o%s;:crt1.o%s}} \
+  "%{!shared: 
%{pg|p|profile:%{static:gcrt0.o%s;:gcrt1.o%s};pie:Scrt1.o%s;static:crt0.o%s;:crt1.o%s}}
 \
    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
 #else
 #define STARTFILE_SPEC \
-  "%{!shared: %{pg|p|profile:gcrt0.o%s;static:crt0.o%s;:crt1.o%s}} \
+  "%{!shared: 
%{pg|p|profile:%{static:gcrt0.o%s;:gcrt1.o%s};static:crt0.o%s;:crt1.o%s}} \
    crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
 #endif
 


Grüße
 Thomas

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