patches/glibc/ports-2.10.1/460-alpha-fix-gcc-4.1-warnings.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Fri Nov 04 19:22:29 2011 +0100 (2011-11-04)
changeset 2735 f09ed6dd71a3
permissions -rw-r--r--
kernel/linux: fix packed attribute in exported headers

UBI headers (and maybe others as well) are broken because the 'packed'
attribute is not sanitised when the headers are exported to userspace.

Apply the fix from upstream:
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=f210735fe2f17a6225432ee3d1239bcf23a8659c

(Also, buildroot does the same, BTW)

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