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authorVasily Gorbik <gor@linux.ibm.com>2020-09-16 14:00:18 +0300
committerHeiko Carstens <hca@linux.ibm.com>2023-02-28 15:19:06 +0300
commit9b5c37bbf659fe4edb4804bc0aa99840d6798878 (patch)
treeceb46719d97221c6d90e376c3e687ac0dbc111ec /arch
parente688c6255b742428ea8fa7e4fb8181a6135205e9 (diff)
downloadlinux-9b5c37bbf659fe4edb4804bc0aa99840d6798878.tar.xz
s390/decompressor: add link map saving
Produce arch/s390/boot/vmlinux.map link map for the decompressor, when CONFIG_VMLINUX_MAP option is enabled. Link map is quite useful during making kernel changes related to how the decompressor is composed and debugging linker scripts. Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/boot/Makefile4
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 47a397da0498..cebd4ca16916 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -52,6 +52,8 @@ targets += vmlinux.bin.zst info.bin syms.bin vmlinux.syms $(obj-all)
OBJECTS := $(addprefix $(obj)/,$(obj-y))
OBJECTS_ALL := $(addprefix $(obj)/,$(obj-all))
+clean-files += vmlinux.map
+
quiet_cmd_section_cmp = SECTCMP $*
define cmd_section_cmp
s1=`$(OBJDUMP) -t -j "$*" "$<" | sort | \
@@ -71,7 +73,7 @@ $(obj)/bzImage: $(obj)/vmlinux $(obj)/section_cmp.boot.data $(obj)/section_cmp.b
$(obj)/section_cmp%: vmlinux $(obj)/vmlinux FORCE
$(call if_changed,section_cmp)
-LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup --build-id=sha1 -T
+LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup $(if $(CONFIG_VMLINUX_MAP),-Map=$(obj)/vmlinux.map) --build-id=sha1 -T
$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS_ALL) FORCE
$(call if_changed,ld)