patches/glibc/ports-2.10.1/460-alpha-fix-gcc-4.1-warnings.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Sep 12 23:38:18 2010 +0200 (2010-09-12)
changeset 2120 48de021b3a9e
permissions -rw-r--r--
arch/mips: add experimental mips64 samples

Both toolchains were tested to successfully:
- _build_ busybox, giving respectively an n32 and an n64 binary
although it has not been run-tested.
- build linux-2.6.36-rc3 for Loongson, giving an n64 vmlinux
(which is expected, due to the way the kernel is built),
and the kernel properly boots!

Credits are due to Julien MOUTHINO (julm on freenode#uClibc) for
testing that the kernel boots on his hardware! Cheers! ;-)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     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