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patches/glibc/ports-2.10.1/460-alpha-fix-gcc-4.1-warnings.patch
author Daniel Price <daniel.price@gmail.com>
Tue Nov 20 16:59:17 2012 -0800 (2012-11-20)
changeset 3126 333d3e40cbd1
permissions -rw-r--r--
scripts: refine static linking check to better guide the user

The current mechanism to check if static linking is possible, and the mesage
displayed on failure, can be puzzling to the unsuspecting user.

Also, the current implementation is not using the existing infrastructure,
and is thus difficult to enhance with new tests.

So, switch to using the standard CT_DoExecLog infra, and use four tests to
check for the host compiler:
- check we can run it
- check it can build a trivial program
- check it can statically link that program
- check if it statically link with libstdc++

That should cover most of the problems. Hopefully.

(At the same time, fix a typo in a comment)

Signed-off-by: Daniel Price <daniel.price@gmail.com>
[yann.morin.1998@free.fr: split original patch for self-contained changes]
[yann.morin.1998@free.fr: use steps to better see gcc's output]
[yann.morin.1998@free.fr: commit log]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Message-Id: <163f86b5216fc08c672a.1353459722@nipigon.dssd.com>
Patchwork-Id: 200536 
     1 2006-05-30  Falk Hueffner <falk@debian.org>

     2 

     3 	* sysdeps/unix/sysv/linux/alpha/ioperm.c: force the architecture

     4 	  to ev6 in assembly code.

     5 

     6 {standard input}: Assembler messages:

     7 {standard input}:341: Error: macro requires $at register while noat in effect

     8 {standard input}:374: Error: macro requires $at register while noat in effect

     9 {standard input}:438: Error: macro requires $at register while noat in effect

    10 {standard input}:471: Error: macro requires $at register while noat in effect

    11 make[3]: *** [/tmp/buildd/glibc-2.3.6/build-tree/alpha-libc/misc/ioperm.o] Error 1

    12 

    13 Hrm. gcc puts .arch ev4 into the .s, and this overrides -mev6 for as.

    14 I cannot really think of anything better than

    15 

    16  ports/sysdeps/unix/sysv/linux/alpha/ioperm.c |    8 ++++----

    17  1 file changed, 4 insertions(+), 4 deletions(-)

    18 

    19 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/ioperm.c glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/ioperm.c

    20 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/ioperm.c	2009-05-16 10:36:20.000000000 +0200

    21 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/unix/sysv/linux/alpha/ioperm.c	2009-11-13 00:50:57.000000000 +0100

    22 @@ -178,13 +178,13 @@

    23  static inline void

    24  stb_mb(unsigned char val, unsigned long addr)

    25  {

    26 -  __asm__("stb %1,%0; mb" : "=m"(*(vucp)addr) : "r"(val));

    27 +  __asm__(".arch ev6; stb %1,%0; mb" : "=m"(*(vucp)addr) : "r"(val));

    28  }

    29  

    30  static inline void

    31  stw_mb(unsigned short val, unsigned long addr)

    32  {

    33 -  __asm__("stw %1,%0; mb" : "=m"(*(vusp)addr) : "r"(val));

    34 +  __asm__(".arch ev6; stw %1,%0; mb" : "=m"(*(vusp)addr) : "r"(val));

    35  }

    36  

    37  static inline void

    38 @@ -356,7 +356,7 @@

    39    unsigned long int addr = dense_port_to_cpu_addr (port);

    40    unsigned char r;

    41  

    42 -  __asm__ ("ldbu %0,%1" : "=r"(r) : "m"(*(vucp)addr));

    43 +  __asm__ (".arch ev6; ldbu %0,%1" : "=r"(r) : "m"(*(vucp)addr));

    44    return r;

    45  }

    46  

    47 @@ -366,7 +366,7 @@

    48    unsigned long int addr = dense_port_to_cpu_addr (port);

    49    unsigned short r;

    50  

    51 -  __asm__ ("ldwu %0,%1" : "=r"(r) : "m"(*(vusp)addr));

    52 +  __asm__ (".arch ev6; ldwu %0,%1" : "=r"(r) : "m"(*(vusp)addr));

    53    return r;

    54  }

    55  

    56 diff -durN glibc-2.10.1.orig/ports/sysdeps/unix/sysv/linux/alpha/ioperm.c glibc-2.10.1/ports/sysdeps/unix/sysv/linux/alpha/ioperm.c
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