Commit 6a00cbfc authored Sep 13, 2005 by Tom Rini Committed by Linus Torvalds Sep 13, 2005

[PATCH] ppc32: discard .exit.text and .exit.data sections



Discard *.exit.text sections on runtime.  We cannot do this on link time
because of the way BUG macros are implemented.  If "__exit function" calls
one of those macros, __bug_table section will reference this function.
This is similar to ".altinstructions" situation on i386.

*.exit.data seems to be OK in this respect and is discarded on link
time.

Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 5b952b3c

arch/ppc/kernel/vmlinux.lds.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -96,6 +96,9 @@ SECTIONS
		*(.init.text)
		_einittext = .;
		}
		/* .exit.text is discarded at runtime, not link time,
		to deal with references from __bug_table */
		.exit.text : { *(.exit.text) }
		.init.data : {
		*(.init.data);
		__vtop_table_begin = .;
		@@ -190,5 +193,6 @@ SECTIONS
		/* Sections to be discarded. */
		/DISCARD/ : {
		*(.exitcall.exit)
		*(.exit.data)
		}
		}