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authorGerald Schaefer <gerald.schaefer@de.ibm.com>2019-02-03 21:35:45 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2019-04-29 10:47:10 +0200
commit805bc0bc238f7209fca5e39c152b0d3c12046ac9 (patch)
tree97edfcee4981bc71c2e6a9dc853353010ac4fa94 /arch/s390/kernel/vmlinux.lds.S
parents390: enable processes for mio instructions (diff)
downloadlinux-dev-805bc0bc238f7209fca5e39c152b0d3c12046ac9.tar.xz
linux-dev-805bc0bc238f7209fca5e39c152b0d3c12046ac9.zip
s390/kernel: build a relocatable kernel
This patch adds support for building a relocatable kernel with -fPIE. The kernel will be relocated to 0 early in the boot process. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Reviewed-by: Philipp Rudo <prudo@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/vmlinux.lds.S')
-rw-r--r--arch/s390/kernel/vmlinux.lds.S15
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 6ef9c62bb01b..49d55327de0b 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -144,6 +144,18 @@ SECTIONS
INIT_DATA_SECTION(0x100)
PERCPU_SECTION(0x100)
+
+ .dynsym ALIGN(8) : {
+ __dynsym_start = .;
+ *(.dynsym)
+ __dynsym_end = .;
+ }
+ .rela.dyn ALIGN(8) : {
+ __rela_dyn_start = .;
+ *(.rela*)
+ __rela_dyn_end = .;
+ }
+
. = ALIGN(PAGE_SIZE);
__init_end = .; /* freed after init ends here */
@@ -165,6 +177,9 @@ SECTIONS
QUAD(__boot_data_preserved_start) /* bootdata_preserved_off */
QUAD(__boot_data_preserved_end -
__boot_data_preserved_start) /* bootdata_preserved_size */
+ QUAD(__dynsym_start) /* dynsym_start */
+ QUAD(__rela_dyn_start) /* rela_dyn_start */
+ QUAD(__rela_dyn_end) /* rela_dyn_end */
} :NONE
/* Debugging sections. */