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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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969de0988b
Commitbe7635e728("arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections") added a new linker section, SOFTIRQENTRY_TEXT, to the linker scripts for most architectures. It didn't add it to any of the linker scripts for the m68k architecture. This was not really a problem because it is only defined if either of CONFIG_FUNCTION_GRAPH_TRACER or CONFIG_KASAN are enabled - which can never be true for m68k. However commit229a718605("irq: Make the irqentry text section unconditional") means that SOFTIRQENTRY_TEXT is now always defined. So on m68k we now end up with a separate ELF section for .softirqentry.text instead of it being part of the .text section. On some m68k targets in some configurations this can also cause a fatal link error: LD vmlinux /usr/local/bin/../m68k-uclinux/bin/ld.real: section .softirqentry.text loaded at [0000000010de10c0,0000000010de12dd] overlaps section .rodata loaded at [0000000010de10c0,0000000010e0fd67] To fix add in the missing SOFTIRQENTRY_TEXT section into the m68k linker scripts. I noticed that m68k is also missing the IRQENTRY_TEXT section, so this patch also adds an entry for that too. Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
68 lines
1.2 KiB
Plaintext
68 lines
1.2 KiB
Plaintext
/* SPDX-License-Identifier: GPL-2.0 */
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/* ld script to make m68k Linux kernel */
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#include <asm-generic/vmlinux.lds.h>
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#include <asm/page.h>
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#include <asm/thread_info.h>
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OUTPUT_FORMAT("elf32-m68k", "elf32-m68k", "elf32-m68k")
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OUTPUT_ARCH(m68k)
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ENTRY(_start)
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jiffies = jiffies_64 + 4;
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SECTIONS
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{
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. = 0x1000;
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_text = .; /* Text and read-only data */
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.text : {
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HEAD_TEXT
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TEXT_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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SCHED_TEXT
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CPUIDLE_TEXT
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LOCK_TEXT
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*(.fixup)
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*(.gnu.warning)
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} :text = 0x4e75
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_etext = .; /* End of text section */
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EXCEPTION_TABLE(16)
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_sdata = .; /* Start of data section */
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RODATA
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RW_DATA_SECTION(16, PAGE_SIZE, THREAD_SIZE)
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BSS_SECTION(0, 0, 0)
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_edata = .; /* End of data section */
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/* will be freed after init */
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. = ALIGN(PAGE_SIZE); /* Init code and data */
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__init_begin = .;
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INIT_TEXT_SECTION(PAGE_SIZE) :data
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INIT_DATA_SECTION(16)
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.m68k_fixup : {
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__start_fixup = .;
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*(.m68k_fixup)
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__stop_fixup = .;
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}
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NOTES
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.init_end : {
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/* This ALIGN be in a section so that _end is at the end of the
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load segment. */
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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}
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_end = . ;
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STABS_DEBUG
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.comment 0 : { *(.comment) }
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/* Sections to be discarded */
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DISCARDS
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}
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