patches/glibc/ports-2.10.1/460-alpha-fix-gcc-4.1-warnings.patch
author "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
Wed May 25 20:23:48 2011 +0200 (2011-05-25)
branch1.11
changeset 2552 cc285cc98e65
permissions -rw-r--r--
debug/gdb: fix runtime sysroot

This patch sets the runtime sysroot to fix the following GDB warning:
"Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code."

The sysroot can later be changed within gdb with the `set sysroot`
command if necessary.

Signed-off-by: "Benoît THÉBAUDEAU" <benoit.thebaudeau@advansee.com>
(transplanted from 7690196856ce4a4700d1887cc3adf80acc627c52)
     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