linux_dsm_epyc7002/arch/x86/boot/compressed
Ard Biesheuvel e544ea57ac x86/boot/compressed: Force hidden visibility for all symbol references
Eliminate all GOT entries in the decompressor binary, by forcing hidden
visibility for all symbol references, which informs the compiler that
such references will be resolved at link time without the need for
allocating GOT entries.

To ensure that no GOT entries will creep back in, add an assertion to
the decompressor linker script that will fire if the .got section has
a non-zero size.

[Arvind: move hidden.h to include/linux instead of making a copy]

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200731230820.1742553-3-keescook@chromium.org
2020-08-14 12:52:34 +02:00
..
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
acpi.c x86/boot: Fix -Wint-to-pointer-cast build warning 2020-05-04 15:22:16 +02:00
cmdline.c x86/boot: Build the command line parsing code unconditionally 2019-02-01 11:51:01 +01:00
cpuflags.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
early_serial_console.c x86, boot: Don't compile early_serial_console.c when !CONFIG_EARLY_PRINTK 2014-08-17 14:58:24 -07:00
efi_thunk_64.S efi/x86: Drop the special GDT for the EFI thunk 2020-05-24 00:25:15 +02:00
error.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
error.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head_32.S x86/boot: Correct relocation destination on old linkers 2020-05-19 14:11:22 +02:00
head_64.S efi/x86: Setup stack correctly for efi_pe_entry 2020-06-17 15:28:58 +02:00
kaslr_64.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
kaslr.c x86: Add support for ZSTD compressed kernel 2020-07-31 11:49:09 +02:00
kernel_info.S x86/boot: Introduce setup_indirect 2019-11-12 16:21:15 +01:00
Makefile x86/boot/compressed: Force hidden visibility for all symbol references 2020-08-14 12:52:34 +02:00
mem_encrypt.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
misc.c x86: Add support for ZSTD compressed kernel 2020-07-31 11:49:09 +02:00
misc.h x86/boot/compressed: Fix debug_puthex() parameter type 2020-03-28 12:14:26 +01:00
mkpiggy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 268 2019-06-05 17:30:29 +02:00
pgtable_64.c x86/boot/compressed/64: Fix missing initialization in find_trampoline_placement() 2019-08-27 10:46:27 +02:00
pgtable.h x86/boot/compressed/64: Set EFER.LME=1 in 32-bit trampoline before returning to long mode 2019-01-29 21:58:59 +01:00
string.c x86/boot: Provide KASAN compatible aliases for string routines 2019-05-24 08:44:16 +02:00
vmlinux.lds.S x86/boot/compressed: Force hidden visibility for all symbol references 2020-08-14 12:52:34 +02:00