Ard Biesheuvel 6b995f5a54 ANDROID: fips140: preserve RELA sections without relying on the module loader ... Instead of having a special case in the core kernel's module loader that treats a module called 'fips140.ko' in a special way, use a host tool to tweak the ELF metadata of this module so that the RELA data is preserved and accessible to the module init code. This is done in the following way: - each RELA section that we care about (the ones for .text and .rodata at the moment) is copied into a new section called .init.rela.<name> with the SHF_ALLOC attribute, so that the module loader will copy it into __init memory at load time; - for each such section, an offset/count tuple is added as a global variable to the module; - the count field of those tuples is populated directly by the host tool based on the actual size of the RELA section in question; - the offset field is decorated with a place-relative relocation against the start of the copied RELA section via a weak symbol reference, which causes an entry to be emitted into the ELF symbol table; - these ELF symbol table entries are updated by the host tool and turned into STT_SECTION type symbols with STB_GLOBAL linkage, carrying the correct section index. With these changes in place, the unmodified module loader will load all required information into memory in a way that permits the module init code to locate the relocations, and apply them in reverse. Bug: 153614920 Bug: 188620248 Change-Id: I07d9704febdf913834502dd09c19aa4a04d983b1 Signed-off-by: Ard Biesheuvel <ardb@google.com> (cherry picked from commit 502af6e3490d3ed51cf2131306303445b0d56579)		2021-10-29 13:32:14 -07:00
..
alpha	This is the 5.10.58 stable release	2021-08-12 14:58:34 +02:00
arc	ARC: Fix CONFIG_STACKDEPOT	2021-09-03 10:09:21 +02:00
arm	This is the 5.10.65 stable release	2021-09-15 14:16:47 +02:00
arm64	ANDROID: fips140: preserve RELA sections without relying on the module loader	2021-10-29 13:32:14 -07:00
c6x
csky	This is the 5.10.50 stable release	2021-07-14 17:35:23 +02:00
h8300
hexagon	hexagon: use common DISCARDS macro	2021-07-20 16:05:53 +02:00
ia64	This is the 5.10.53 stable release	2021-07-25 15:37:14 +02:00
m68k	This is the 5.10.65 stable release	2021-09-15 14:16:47 +02:00
microblaze
mips	This is the 5.10.58 stable release	2021-08-12 14:58:34 +02:00
nds32	nds32: fix up stack guard gap	2021-07-28 14:35:46 +02:00
nios2
openrisc	sched/core: Initialize the idle task with preemption disabled	2021-07-14 16:55:50 +02:00
parisc	This is the 5.10.62 stable release	2021-09-03 10:51:56 +02:00
powerpc	UPSTREAM: ubsan: enable for all*config builds	2021-10-21 08:33:13 -07:00
riscv	This is the 5.10.62 stable release	2021-09-03 10:51:56 +02:00
s390	This is the 5.10.65 stable release	2021-09-15 14:16:47 +02:00
sh	This is the 5.10.50 stable release	2021-07-14 17:35:23 +02:00
sparc	This is the 5.10.56 stable release	2021-08-04 15:02:23 +02:00
um	This is the 5.10.52 stable release	2021-07-20 16:36:53 +02:00
x86	ANDROID: gki_defconfig: enable CONFIG_USB_CONFIGFS_F_UVC	2021-10-27 12:55:32 +00:00
xtensa	This is the 5.10.63 stable release	2021-09-08 09:08:09 +02:00
.gitignore
Kconfig