github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

- Disable jump/lookup tables in the x86 boot decompressor code

Browse Source 
a bit more widely, because newer versions of LLVM started
    optimizing it a bit better and introduced run-time relocations
    in PIE code. (Nathan Chancellor)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
 -----BEGIN PGP SIGNATURE-----
 
 iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmpl0uARHG1pbmdvQGtl
 cm5lbC5vcmcACgkQEnMQ0APhK1hmpxAAltRv2TwPA4MeZt10iYTG4BdwMp4OleR4
 hDxqYL9T1OJev4wLujlri3/Vb1MVKG1S3YQjeG6hWAB0L+//hbx2e/nEU24uW5xb
 j+0kAWSSZPUIP3KRc5Cy4mb1EXiumjk3GHnwXZpRV5XA4RRoTmpexd09J5v5KNvt
 /q/c8ZzVMB8p8S1K98BdL/wMAyEHLg+iSywTdNsa8Zyw8qB8qAlRgLHTlhYjkcnO
 E1+g3MY7QDEjMYDgHAMP1GHvtXTktXfp2Neo4s0WLmY/C6LEyWE/+HIDrMVuzjat
 AU5IWbE0tDxGYdeyVvVoxRafFWmVg7mfnazkORp6iojbfJeVBB+IkNAVX0fbKEBT
 Yx6Gcm/x0Xb2pf8zaUWE2q02Sz4WYpWrkcLZrLIVnCphyAK7K7V+I7ZkFP1reQR9
 fr9RIsKC+6K5mWivFpOjkEzYp+D9Yp2OJyAgK0oE7F7Zd6u0+qpCWaM+VPHsYp41
 wsVGTPgD5JP871o6ln38YskBct70E3BnzO5p10a5PbyRaaBCSBZC1XGCglIs7PS9
 TmsZOI4Wc8dHzobUTXNdgOymfqXV/bQEITL8qRt9Ge2GUiUROFLp8IVzmJIADWKv
 oqtoNo/vjthpFTXVZ3c4beACEaNu71bDbLjwjOdIb2W8NPY+Z+WeSkHDcg5Gt7qN
 2cYWBUyhc3o=
 =3e+9
 -----END PGP SIGNATURE-----

Merge tag 'x86-urgent-2026-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:

 - Disable jump/lookup tables in the x86 boot decompressor code
   a bit more widely, because newer versions of LLVM started
   optimizing it a bit better and introduced run-time relocations
   in PIE code (Nathan Chancellor)

* tag 'x86-urgent-2026-07-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot/compressed: Disable jump tables
This commit is contained in:
Linus Torvalds 2026-07-26 08:52:38 -07:00
commit 3f97818796
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/boot/compressed/Makefile
View File

@ -27,6 +27,7 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
KBUILD_CFLAGS := -m$(BITS) -O2 $(CLANG_FLAGS)
KBUILD_CFLAGS += $(CC_FLAGS_DIALECT)
KBUILD_CFLAGS += -fno-strict-aliasing -fPIE
KBUILD_CFLAGS += -fno-jump-tables
KBUILD_CFLAGS += -Wundef
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
cflags-$(CONFIG_X86_32) := -march=i386