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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-29 16:40:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-29 16:40:28 -0800
commitd0bd31dc5c0b46b9c778112900cf8f910ac26e1b (patch)
tree84998565ff4a1aee4540a986923ba75b63674ea8 /arch/xtensa/boot
parentaca21de2e8355769513c27d1c218e3e8947fe84b (diff)
parentca47480921587ae30417dd234a9f79af188e3666 (diff)
downloadlinux-d0bd31dc5c0b46b9c778112900cf8f910ac26e1b.tar.bz2
Merge tag 'xtensa-20180129' of git://github.com/jcmvbkbc/linux-xtensa
Pull Xtensa updates from Max Filippov: - add SSP support - add KASAN support - improvements to xtensa-specific assembly: - use ENTRY and ENDPROC consistently - clean up and unify word alignment macros - clean up and unify fixup marking - use 'call' instead of 'callx' where possible - various cleanups: - consiolidate kernel stack size related definitions - replace #ifdef'fed/commented out debug printk statements with pr_debug - use struct exc_table instead of flat array for exception handling data - build kernel with -mtext-section-literals; simplify xtensa linker script - fix futex_atomic_cmpxchg_inatomic() * tag 'xtensa-20180129' of git://github.com/jcmvbkbc/linux-xtensa: (21 commits) xtensa: fix futex_atomic_cmpxchg_inatomic xtensa: shut up gcc-8 warnings xtensa: print kernel sections info in mem_init xtensa: use generic strncpy_from_user with KASAN xtensa: use __memset in __xtensa_clear_user xtensa: add support for KASAN xtensa: move fixmap and kmap just above the KSEG xtensa: don't clear swapper_pg_dir in paging_init xtensa: extract init_kio xtensa: implement early_trap_init xtensa: clean up exception handling structure xtensa: clean up custom-controlled debug output xtensa: enable stack protector xtensa: print hardware config ID on startup xtensa: consolidate kernel stack size related definitions xtensa: clean up functions in assembly code xtensa: clean up word alignment macros in assembly code xtensa: clean up fixups in assembly code xtensa: use call instead of callx in assembly code xtensa: build kernel with text-section-literals ...
Diffstat (limited to 'arch/xtensa/boot')
-rw-r--r--arch/xtensa/boot/boot-redboot/bootstrap.S1
-rw-r--r--arch/xtensa/boot/lib/Makefile6
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/xtensa/boot/boot-redboot/bootstrap.S b/arch/xtensa/boot/boot-redboot/bootstrap.S
index bf7fabe6310d..bbf3b4b080cd 100644
--- a/arch/xtensa/boot/boot-redboot/bootstrap.S
+++ b/arch/xtensa/boot/boot-redboot/bootstrap.S
@@ -42,6 +42,7 @@ __start_a0:
.align 4
.section .text, "ax"
+ .literal_position
.begin literal_prefix .text
/* put literals in here! */
diff --git a/arch/xtensa/boot/lib/Makefile b/arch/xtensa/boot/lib/Makefile
index d2a7f48564a4..355127faade1 100644
--- a/arch/xtensa/boot/lib/Makefile
+++ b/arch/xtensa/boot/lib/Makefile
@@ -15,6 +15,12 @@ CFLAGS_REMOVE_inftrees.o = -pg
CFLAGS_REMOVE_inffast.o = -pg
endif
+KASAN_SANITIZE := n
+
+CFLAGS_REMOVE_inflate.o += -fstack-protector -fstack-protector-strong
+CFLAGS_REMOVE_zmem.o += -fstack-protector -fstack-protector-strong
+CFLAGS_REMOVE_inftrees.o += -fstack-protector -fstack-protector-strong
+CFLAGS_REMOVE_inffast.o += -fstack-protector -fstack-protector-strong
quiet_cmd_copy_zlib = COPY $@
cmd_copy_zlib = cat $< > $@