From 7a84ffc0471f0ff59f9ae10807a77bd666e24fd0 Mon Sep 17 00:00:00 2001 From: Philipp Rudo Date: Wed, 25 Nov 2020 19:08:23 +0100 Subject: s390/boot: add build-id to decompressor More and more functionality from the early boot phase gets carried over to the decompressor. With this the complexity of the code and thus the chance to introduce bugs increases. In order to be able to debug these early boot bugs the distributions have to package the decompressors vmlinux together with the other debuginfos. However for that the distributions require the vmlinux to contain a build-id. Per default the section containing the build-id is placed first in the section table. So make sure to move it behind the .text section otherwise the image would be unbootable. Signed-off-by: Philipp Rudo Signed-off-by: Heiko Carstens --- arch/s390/boot/compressed/Makefile | 2 +- arch/s390/boot/compressed/vmlinux.lds.S | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/s390') diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index e0502222706a..de18dab518bb 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -23,7 +23,7 @@ OBJCOPYFLAGS := OBJECTS := $(addprefix $(obj)/,$(obj-y)) OBJECTS_ALL := $(addprefix $(obj)/,$(obj-all)) -LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T +LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup --build-id=sha1 -T $(obj)/vmlinux: $(obj)/vmlinux.lds $(objtree)/arch/s390/boot/startup.a $(OBJECTS_ALL) FORCE $(call if_changed,ld) diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S index 152ac6f875c0..27a09c1c78f6 100644 --- a/arch/s390/boot/compressed/vmlinux.lds.S +++ b/arch/s390/boot/compressed/vmlinux.lds.S @@ -27,6 +27,7 @@ SECTIONS *(.rodata.*) _erodata = . ; } + NOTES .data : { _data = . ; *(.data) -- cgit v1.2.3