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ARM: 9138/1: fix link warning with XIP + frame-pointer

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commit 44cc6412e6 upstream.

When frame pointers are used instead of the ARM unwinder,
and the kernel is built using clang with an external assembler
and CONFIG_XIP_KERNEL, every file produces two warnings
like:

arm-linux-gnueabi-ld: warning: orphan section `.ARM.extab' from `net/mac802154/util.o' being placed in section `.ARM.extab'
arm-linux-gnueabi-ld: warning: orphan section `.ARM.exidx' from `net/mac802154/util.o' being placed in section `.ARM.exidx'

The same fix was already merged for the normal (non-XIP)

linker script, with a longer description.

Fixes: c39866f268 ("arm/build: Always handle .ARM.exidx and .ARM.extab sections")
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann
2021-10-18 15:30:08 +01:00
committed by Greg Kroah-Hartman
parent 8a6af97c31
commit c06d7d9bfc
1 changed files with 4 additions and 0 deletions
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4
arch/arm/kernel/vmlinux-xip.lds.S
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@@ -40,6 +40,10 @@ SECTIONS
ARM_DISCARD
*(.alt.smp.init)
*(.pv_table)
#ifndef CONFIG_ARM_UNWIND
*(.ARM.exidx) *(.ARM.exidx.*)
*(.ARM.extab) *(.ARM.extab.*)
#endif
}
. = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);