patches/glibc/linuxthreads-2.3.6/110-alpha-cfi.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
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--- glibc-2.3.6/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h.orig	2008-06-19 15:31:45.000000000 +0300
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+++ glibc-2.3.6/linuxthreads/sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h	2008-06-19 15:36:10.000000000 +0300
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@@ -54,6 +54,7 @@
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 	bne	a3, SYSCALL_ERROR_LABEL;			\
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 __LABEL($pseudo_ret)						\
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 	.subsection 2;						\
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+	cfi_startproc;						\
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 __LABEL($pseudo_cancel)						\
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 	subq	sp, 64, sp;					\
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 	cfi_def_cfa_offset(64);					\
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@@ -84,12 +85,13 @@
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 	cfi_def_cfa_offset(0);					\
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 __LABEL($syscall_error)						\
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 	SYSCALL_ERROR_HANDLER;					\
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+	cfi_endproc;						\
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 	.previous
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 # undef PSEUDO_END
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 # define PSEUDO_END(sym)					\
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-	.subsection 2;						\
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 	cfi_endproc;						\
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+	.subsection 2;						\
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 	.size sym, .-sym
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 # define SAVE_ARGS_0	/* Nothing.  */