From: Tom Rini <trini@kernel.crashing.org>
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>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
arch/ppc/kernel/vmlinux.lds.S | 4 ++++
1 files changed, 4 insertions(+)
diff -puN arch/ppc/kernel/vmlinux.lds.S~ppc32-discard-exittext-and-exitdata-sections arch/ppc/kernel/vmlinux.lds.S
--- devel/arch/ppc/kernel/vmlinux.lds.S~ppc32-discard-exittext-and-exitdata-sections 2005-09-09 11:53:09.000000000 -0700
+++ devel-akpm/arch/ppc/kernel/vmlinux.lds.S 2005-09-09 11:53:09.000000000 -0700
@@ -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)
}
}
_