mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 11:16:40 +07:00
d7c19b066d
Limit the number of kmemleak false positives by including
.data.ro_after_init in memory scanning. To achieve this we need to add
symbols for start and end of the section to the linker scripts.
The problem was been uncovered by commit 56989f6d85 ("genetlink: mark
families as __ro_after_init").
Link: http://lkml.kernel.org/r/1478274173-15218-1-git-send-email-jakub.kicinski@netronome.com
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
115 lines
2.2 KiB
ArmAsm
115 lines
2.2 KiB
ArmAsm
/* 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)
|
|
jiffies = jiffies_64;
|
|
|
|
PHDRS {
|
|
text PT_LOAD FLAGS(5); /* R_E */
|
|
data PT_LOAD FLAGS(7); /* RWE */
|
|
note PT_NOTE FLAGS(0); /* ___ */
|
|
}
|
|
|
|
SECTIONS
|
|
{
|
|
. = 0x00000000;
|
|
.text : {
|
|
_text = .; /* Text and read-only data */
|
|
HEAD_TEXT
|
|
TEXT_TEXT
|
|
SCHED_TEXT
|
|
CPUIDLE_TEXT
|
|
LOCK_TEXT
|
|
KPROBES_TEXT
|
|
IRQENTRY_TEXT
|
|
SOFTIRQENTRY_TEXT
|
|
*(.fixup)
|
|
*(.gnu.warning)
|
|
} :text = 0x0700
|
|
|
|
_etext = .; /* End of text section */
|
|
|
|
NOTES :text :note
|
|
|
|
.dummy : { *(.dummy) } :data
|
|
|
|
RO_DATA_SECTION(PAGE_SIZE)
|
|
|
|
#ifdef CONFIG_SHARED_KERNEL
|
|
. = ALIGN(0x100000); /* VM shared segments are 1MB aligned */
|
|
#endif
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
_eshared = .; /* End of shareable data */
|
|
_sdata = .; /* Start of data section */
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
__start_ro_after_init = .;
|
|
__start_data_ro_after_init = .;
|
|
.data..ro_after_init : {
|
|
*(.data..ro_after_init)
|
|
}
|
|
__end_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 = .;
|
|
|
|
INIT_TEXT_SECTION(PAGE_SIZE)
|
|
|
|
/*
|
|
* .exit.text is discarded at runtime, not link time,
|
|
* to deal with references from __bug_table
|
|
*/
|
|
.exit.text : {
|
|
EXIT_TEXT
|
|
}
|
|
|
|
.exit.data : {
|
|
EXIT_DATA
|
|
}
|
|
|
|
/* 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
|
|
}
|