patches/glibc/2.9/250-resolv-dynamic.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Jul 17 22:43:07 2011 +0200 (2011-07-17)
changeset 2893 a8a65758664f
parent 1201 c9967a6e3b25
permissions -rw-r--r--
cc/gcc: do not use the core pass-2 to build the baremetal compiler

In case we build a baremetal compiler, use the standard passes:
- core_cc is used to build the C library;
- as such, it is meant to run on build, not host;
- the final compiler is meant to run on host;

As the current final compiler step can not build a baremetal compiler,
call the core backend from the final step.

NB: Currently, newlib is built during the start_files pass, so we have
to have a core compiler by then... Once we can build the baremetal
compiler from the final cc step, then we can move the newlib build to
the proper step, and then get rid of the core pass-1 static compiler...

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 Original patch from: gentoo/src/patchsets/glibc/2.9/1055_all_glibc-resolv-dynamic.patch
     2 
     3 -= BEGIN original header =-
     4 ripped from SuSE
     5 
     6 if /etc/resolv.conf is updated, then make sure applications
     7 already running get the updated information.
     8 
     9 http://bugs.gentoo.org/177416
    10 
    11 -= END original header =-
    12 
    13 diff -durN glibc-2_9.orig/resolv/res_libc.c glibc-2_9/resolv/res_libc.c
    14 --- glibc-2_9.orig/resolv/res_libc.c	2006-10-11 10:59:28.000000000 +0200
    15 +++ glibc-2_9/resolv/res_libc.c	2009-02-02 22:00:57.000000000 +0100
    16 @@ -22,6 +22,7 @@
    17  #include <arpa/nameser.h>
    18  #include <resolv.h>
    19  #include <bits/libc-lock.h>
    20 +#include <sys/stat.h>
    21  
    22  
    23  /* The following bit is copied from res_data.c (where it is #ifdef'ed
    24 @@ -95,6 +96,20 @@
    25  __res_maybe_init (res_state resp, int preinit)
    26  {
    27  	if (resp->options & RES_INIT) {
    28 +		static time_t last_mtime, last_check;
    29 +		time_t now;
    30 +		struct stat statbuf;
    31 +		
    32 +		time (&now);
    33 +		if (now != last_check) {
    34 +			last_check = now;
    35 +			if (stat (_PATH_RESCONF, &statbuf) == 0 && last_mtime != statbuf.st_mtime) {
    36 +				last_mtime = statbuf.st_mtime;
    37 +				atomicinclock (lock);
    38 +				atomicinc (__res_initstamp);
    39 +				atomicincunlock (lock);
    40 +			}
    41 +		}
    42  		if (__res_initstamp != resp->_u._ext.initstamp) {
    43  			if (resp->nscount > 0) {
    44  				__res_iclose (resp, true);