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| author |   Philipp Rudo <prudo@linux.ibm.com> | 2020-11-25 19:08:23 +0100 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2020-12-09 21:02:07 +0100 |
| commit | 7a84ffc0471f0ff59f9ae10807a77bd666e24fd0 (patch) | |
| tree | f2ed14edee4c53b531ccb3fd22461798265b19d2 /arch/s390/boot/compressed | |
| parent | s390/kexec_file: fix diag308 subcode when loading crash kernel (diff) | |
| download | linux-dev-7a84ffc0471f0ff59f9ae10807a77bd666e24fd0.tar.xz linux-dev-7a84ffc0471f0ff59f9ae10807a77bd666e24fd0.zip | |
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 <prudo@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot/compressed')
| -rw-r--r-- | arch/s390/boot/compressed/Makefile | 2 | ||||
| -rw-r--r-- | arch/s390/boot/compressed/vmlinux.lds.S | 1 |
2 files changed, 2 insertions, 1 deletions
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) |