Unverified Commit 140c8180 authored by Christian Brauner's avatar Christian Brauner
Browse files

arch: remove HAVE_COPY_THREAD_TLS 



All architectures support copy_thread_tls() now, so remove the legacy
copy_thread() function and the HAVE_COPY_THREAD_TLS config option. Everyone
uses the same process creation calling convention based on
copy_thread_tls() and struct kernel_clone_args. This will make it easier to
maintain the core process creation code under kernel/, simplifies the
callpaths and makes the identical for all architectures.

Cc: linux-arch@vger.kernel.org
Acked-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: default avatarGreentime Hu <green.hu@gmail.com>
Acked-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Signed-off-by: default avatarChristian Brauner <christian.brauner@ubuntu.com>
parent 8496da09

arch/Kconfig

+0 −7
Original line number Diff line number Diff line
@@ -754,13 +754,6 @@ config ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT 
	depends on MMU

	select ARCH_HAS_ELF_RANDOMIZE



config HAVE_COPY_THREAD_TLS

	bool

	help

	  Architecture provides copy_thread_tls to accept tls argument via

	  normal C parameter passing, rather than extracting the syscall

	  argument from pt_regs.



config HAVE_STACK_VALIDATION

	bool

	help

arch/alpha/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -38,7 +38,6 @@ config ALPHA 
	select OLD_SIGSUSPEND

	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67

	select MMU_GATHER_NO_RANGE

	select HAVE_COPY_THREAD_TLS

	help

	  The Alpha is a 64-bit general-purpose processor designed and

	  marketed by the Digital Equipment Corporation of blessed memory,

arch/arc/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -29,7 +29,6 @@ config ARC 
	select GENERIC_SMP_IDLE_THREAD

	select HAVE_ARCH_KGDB

	select HAVE_ARCH_TRACEHOOK

	select HAVE_COPY_THREAD_TLS

	select HAVE_DEBUG_STACKOVERFLOW

	select HAVE_DEBUG_KMEMLEAK

	select HAVE_FUTEX_CMPXCHG if FUTEX

arch/arm/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -72,7 +72,6 @@ config ARM 
	select HAVE_ARM_SMCCC if CPU_V7

	select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32

	select HAVE_CONTEXT_TRACKING

	select HAVE_COPY_THREAD_TLS

	select HAVE_C_RECORDMCOUNT

	select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL

	select HAVE_DMA_CONTIGUOUS if MMU

arch/arm64/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -148,7 +148,6 @@ config ARM64 
	select HAVE_CMPXCHG_DOUBLE

	select HAVE_CMPXCHG_LOCAL

	select HAVE_CONTEXT_TRACKING

	select HAVE_COPY_THREAD_TLS

	select HAVE_DEBUG_BUGVERBOSE

	select HAVE_DEBUG_KMEMLEAK

	select HAVE_DMA_CONTIGUOUS

CRA Git | Maintained and supported by SUSTech CRA and CCSE