1 files changed, 156 insertions, 0 deletions
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
new file mode 100644
index 000000000..18ede6e80
--- /dev/null
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* ld script to make s390 Linux kernel
+ * Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
+ */
+
+#include <asm/thread_info.h>
+#include <asm/page.h>
+
+/*
+ * Put .bss..swapper_pg_dir as the first thing in .bss. This will
+ * make sure it has 16k alignment.
+ */
+#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
+
+/* Handle ro_after_init data on our own. */
+#define RO_AFTER_INIT_DATA
+
+#include <asm-generic/vmlinux.lds.h>
+
+OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
+OUTPUT_ARCH(s390:64-bit)
+ENTRY(startup_continue)
+jiffies = jiffies_64;
+
+PHDRS {
+	text PT_LOAD FLAGS(5);	/* R_E */
+	data PT_LOAD FLAGS(7);	/* RWE */
+	note PT_NOTE FLAGS(0);	/* ___ */
+}
+
+SECTIONS
+{
+	. = 0x100000;
+	.text : {
+		_stext = .;		/* Start of text section */
+		_text = .;		/* Text and read-only data */
+		HEAD_TEXT
+		TEXT_TEXT
+		SCHED_TEXT
+		CPUIDLE_TEXT
+		LOCK_TEXT
+		KPROBES_TEXT
+		IRQENTRY_TEXT
+		SOFTIRQENTRY_TEXT
+		*(.text.*_indirect_*)
+		*(.fixup)
+		*(.gnu.warning)
+		. = ALIGN(PAGE_SIZE);
+		_etext = .;		/* End of text section */
+	} :text = 0x0700
+
+	NOTES :text :note
+
+	.dummy : { *(.dummy) } :data
+
+	RO_DATA_SECTION(PAGE_SIZE)
+
+	. = ALIGN(PAGE_SIZE);
+	_sdata = .;		/* Start of data section */
+
+	. = ALIGN(PAGE_SIZE);
+	__start_ro_after_init = .;
+	.data..ro_after_init : {
+		 *(.data..ro_after_init)
+	}
+	EXCEPTION_TABLE(16)
+	. = ALIGN(PAGE_SIZE);
+	__end_ro_after_init = .;
+
+	RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
+
+	_edata = .;		/* End of data section */
+
+	/* will be freed after init */
+	. = ALIGN(PAGE_SIZE);	/* Init code and data */
+	__init_begin = .;
+
+	. = ALIGN(PAGE_SIZE);
+	.init.text : AT(ADDR(.init.text) - LOAD_OFFSET) {
+		_sinittext = .;
+		INIT_TEXT
+		. = ALIGN(PAGE_SIZE);
+		_einittext = .;
+	}
+
+	/*
+	 * .exit.text is discarded at runtime, not link time,
+	 * to deal with references from __bug_table
+	*/
+	.exit.text : {
+		EXIT_TEXT
+	}
+
+	.exit.data : {
+		EXIT_DATA
+	}
+
+	/*
+	 * struct alt_inst entries. From the header (alternative.h):
+	 * "Alternative instructions for different CPU types or capabilities"
+	 * Think locking instructions on spinlocks.
+	 * Note, that it is a part of __init region.
+	 */
+	. = ALIGN(8);
+	.altinstructions : {
+		__alt_instructions = .;
+		*(.altinstructions)
+		__alt_instructions_end = .;
+	}
+
+	/*
+	 * And here are the replacement instructions. The linker sticks
+	 * them as binary blobs. The .altinstructions has enough data to
+	 * get the address and the length of them to patch the kernel safely.
+	 * Note, that it is a part of __init region.
+	 */
+	.altinstr_replacement : {
+		*(.altinstr_replacement)
+	}
+
+	/*
+	 * Table with the patch locations to undo expolines
+	*/
+	.nospec_call_table : {
+		__nospec_call_start = . ;
+		*(.s390_indirect*)
+		__nospec_call_end = . ;
+	}
+	.nospec_return_table : {
+		__nospec_return_start = . ;
+		*(.s390_return*)
+		__nospec_return_end = . ;
+	}
+
+	/* early.c uses stsi, which requires page aligned data. */
+	. = ALIGN(PAGE_SIZE);
+	INIT_DATA_SECTION(0x100)
+
+	PERCPU_SECTION(0x100)
+	. = ALIGN(PAGE_SIZE);
+	__init_end = .;		/* freed after init ends here */
+
+	BSS_SECTION(PAGE_SIZE, 4 * PAGE_SIZE, PAGE_SIZE)
+
+	_end = . ;
+
+	/* Debugging sections.	*/
+	STABS_DEBUG
+	DWARF_DEBUG
+
+	/* Sections to be discarded */
+	DISCARDS
+	/DISCARD/ : {
+		*(.eh_frame)
+	}
+}