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patches/glibc/2.5/190-alpha-sigsuspend.patch
author Johannes Stezenbach <js@sig21.net>
Tue Oct 30 00:22:25 2012 +0000 (2012-10-30)
changeset 3097 5c67476c7342
parent 744 4bf8448536d5
permissions -rw-r--r--
scripts/functions: fix endless loop in debug-shell with IO redirection

CT_DEBUG_INTERACTIVE is disabled when stdin, stdout or
stderr are redirected, but the check is only done at
the start of the build and doesn't catch when individual
build commands use redirection. When stdin is redirected
it will cause the debug shell to exit immediately, causing
and endless loop. Thus, save the stdin/our/err file handles
and restore them before invoking the debug shell.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Message-Id: <20121030102225.GA8303@sig21.net>
Patchwork-Id: 195409 
     1 --- glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S.orig	2006-10-22 22:17:01.000000000 +0200

     2 +++ glibc-2.5/sysdeps/unix/sysv/linux/alpha/sigsuspend.S	2006-10-22 22:18:05.000000000 +0200

     3 @@ -31,3 +31,21 @@

     4  libc_hidden_def (__sigsuspend)

     5  weak_alias (__sigsuspend, sigsuspend)

     6  strong_alias (__sigsuspend, __libc_sigsuspend)

     7 +

     8 +#ifndef NO_CANCELLATION

     9 +	.globl __sigsuspend_nocancel;

    10 +	.align 4;

    11 +	.type __sigsuspend_nocancel, @function;

    12 +	.usepv __sigsuspend_nocancel, std;

    13 +	cfi_startproc;

    14 +__LABEL(__sigsuspend_nocancel)

    15 +	ldgp    gp, 0(pv);

    16 +	PSEUDO_PROF;

    17 +	PSEUDO_PREPARE_ARGS

    18 +	lda     v0, SYS_ify(sigsuspend);

    19 +	call_pal PAL_callsys;

    20 +	bne     a3, SYSCALL_ERROR_LABEL;

    21 +	ret;

    22 +	cfi_endproc;

    23 +	.size __sigsuspend_nocancel, .-__sigsuspend_nocancel

    24 +#endif
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