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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c14b4bcfd9
Previously, all the __exit sections were just dropped by the link phase. However, if there are static_key (jump label) constructs in __exit sections that are not modules, the link fails with the message: `.exit.text' referenced in section `__jump_table' of xxx.o: defined in discarded section `.exit.text' of xxx.o Support this usage by keeping the .exit.text sections in the final image if JUMP_LABEL is defined, then discarding them once initialization is complete. Link: http://lkml.kernel.org/r/bfd7c107c610c30e992868ebfe2a5d796a097464.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
104 lines
2.2 KiB
ArmAsm
104 lines
2.2 KiB
ArmAsm
#include <asm-generic/vmlinux.lds.h>
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#include <asm/page.h>
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#include <asm/cache.h>
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#include <asm/thread_info.h>
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#include <hv/hypervisor.h>
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/* Text loads starting from the supervisor interrupt vector address. */
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#define TEXT_OFFSET MEM_SV_START
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OUTPUT_ARCH(tile)
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ENTRY(_start)
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jiffies = jiffies_64;
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PHDRS
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{
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intrpt PT_LOAD ;
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text PT_LOAD ;
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data PT_LOAD ;
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}
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SECTIONS
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{
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/* Text is loaded with a different VA than data; start with text. */
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#undef LOAD_OFFSET
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#define LOAD_OFFSET TEXT_OFFSET
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/* Interrupt vectors */
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.intrpt (LOAD_OFFSET) : AT ( 0 ) /* put at the start of physical memory */
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{
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_text = .;
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*(.intrpt)
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} :intrpt =0
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/* Hypervisor call vectors */
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. = ALIGN(0x10000);
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.hvglue : AT (ADDR(.hvglue) - LOAD_OFFSET) {
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*(.hvglue)
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} :NONE
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/* Now the real code */
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. = ALIGN(0x20000);
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_stext = .;
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.text : AT (ADDR(.text) - LOAD_OFFSET) {
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HEAD_TEXT
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SCHED_TEXT
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LOCK_TEXT
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KPROBES_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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__fix_text_end = .; /* tile-cpack won't rearrange before this */
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ALIGN_FUNCTION();
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*(.hottext*)
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TEXT_TEXT
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*(.text.*)
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*(.coldtext*)
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*(.fixup)
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*(.gnu.warning)
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} :text =0
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_etext = .;
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/* "Init" is divided into two areas with very different virtual addresses. */
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INIT_TEXT_SECTION(PAGE_SIZE)
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/*
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* Some things, like the __jump_table, may contain symbol references
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* to __exit text, so include such text in the final image if so.
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* In that case we also override the _einittext from INIT_TEXT_SECTION.
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*/
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#ifdef CONFIG_JUMP_LABEL
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.exit.text : {
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EXIT_TEXT
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_einittext = .;
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}
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#endif
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/* Now we skip back to PAGE_OFFSET for the data. */
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. = (. - TEXT_OFFSET + PAGE_OFFSET);
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#undef LOAD_OFFSET
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#define LOAD_OFFSET PAGE_OFFSET
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. = ALIGN(PAGE_SIZE);
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__init_begin = .;
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INIT_DATA_SECTION(16) :data =0
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PERCPU_SECTION(L2_CACHE_BYTES)
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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_sdata = .; /* Start of data section */
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RO_DATA_SECTION(PAGE_SIZE)
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RW_DATA_SECTION(L2_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
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_edata = .;
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EXCEPTION_TABLE(L2_CACHE_BYTES)
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NOTES
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BSS_SECTION(8, PAGE_SIZE, 1)
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_end = . ;
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STABS_DEBUG
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DWARF_DEBUG
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DISCARDS
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}
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