diff options
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 75 |
1 files changed, 56 insertions, 19 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 102ddbd4298e..45c657772362 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -114,6 +114,20 @@ config GENERIC_ENTRY select GENERIC_IRQ_ENTRY select GENERIC_SYSCALL +config ARCH_SUPPORTS_SYSCALL_USER_DISPATCH + bool + +config SYSCALL_USER_DISPATCH + bool "Syscall User Dispatch" + depends on ARCH_SUPPORTS_SYSCALL_USER_DISPATCH + depends on GENERIC_ENTRY + default y + help + Syscall User Dispatch lets a thread have its own system calls + intercepted and redirected to a userspace signal handler based + on a prctl() configured instruction pointer range. + If unsure, say Y. + config KPROBES bool "Kprobes" depends on HAVE_KPROBES @@ -363,6 +377,9 @@ config ARCH_HAS_DMA_CLEAR_UNCACHED config ARCH_HAS_CPU_FINALIZE_INIT bool +config ARCH_HAS_DELAY_TIMER + bool + # The architecture has a per-task state that includes the mm's PASID config ARCH_HAS_CPU_PASID bool @@ -403,6 +420,10 @@ config ARCH_32BIT_OFF_T config ARCH_32BIT_USTAT_F_TINODE bool +# Selected by architectures with Total Store Order (TSO) +config ARCH_MEMORY_ORDER_TSO + bool + config HAVE_ASM_MODVERSIONS bool help @@ -633,7 +654,7 @@ config HAVE_ARCH_SECCOMP_FILTER - syscall_set_return_value() - SIGSYS siginfo_t support - secure_computing is called from a ptrace_event()-safe context - - secure_computing return value is checked and a return value of -1 + - secure_computing return value is checked and if false it results in the system call being skipped immediately. - seccomp syscall wired up - if !HAVE_SPARSE_SYSCALL_NR, have SECCOMP_ARCH_NATIVE, @@ -806,9 +827,6 @@ config HAS_LTO_CLANG depends on $(success,$(AR) --help | head -n 1 | grep -qi llvm) depends on ARCH_SUPPORTS_LTO_CLANG depends on !FTRACE_MCOUNT_USE_RECORDMCOUNT - # https://github.com/ClangBuiltLinux/linux/issues/1721 - depends on (!KASAN || KASAN_HW_TAGS || CLANG_VERSION >= 170000) || !DEBUG_INFO - depends on (!KCOV || CLANG_VERSION >= 170000) || !DEBUG_INFO depends on !GCOV_KERNEL help The compiler and Kconfig options support building with Clang's @@ -861,15 +879,30 @@ config LTO_CLANG_THIN https://clang.llvm.org/docs/ThinLTO.html If unsure, say Y. -endchoice -config ARCH_SUPPORTS_AUTOFDO_CLANG - bool +config LTO_CLANG_THIN_DIST + bool "Clang ThinLTO in distributed mode (EXPERIMENTAL)" + depends on HAS_LTO_CLANG && ARCH_SUPPORTS_LTO_CLANG_THIN + select LTO_CLANG + help + This option enables Clang's ThinLTO in distributed build mode. + In this mode, the linker performs the thin-link, generating + ThinLTO index files. Subsequently, the build system explicitly + invokes ThinLTO backend compilation using these index files + and pre-linked IR objects. The resulting native object files + are with the .thinlto-native.o suffix. + + This build mode offers improved visibility into the ThinLTO + process through explicit subcommand exposure. It also makes + final native object files directly available, benefiting + tools like objtool and kpatch. Additionally, it provides + crucial granular control over back-end options, enabling + module-specific compiler options, and simplifies debugging. +endchoice config AUTOFDO_CLANG bool "Enable Clang's AutoFDO build (EXPERIMENTAL)" - depends on ARCH_SUPPORTS_AUTOFDO_CLANG - depends on CC_IS_CLANG && CLANG_VERSION >= 170000 + depends on CC_IS_CLANG help This option enables Clang’s AutoFDO build. When an AutoFDO profile is specified in variable @@ -883,13 +916,10 @@ config AUTOFDO_CLANG If unsure, say N. -config ARCH_SUPPORTS_PROPELLER_CLANG - bool - config PROPELLER_CLANG bool "Enable Clang's Propeller build" - depends on ARCH_SUPPORTS_PROPELLER_CLANG depends on CC_IS_CLANG && CLANG_VERSION >= 190000 + depends on $(cc-option,-fbasic-block-sections=list=/dev/null) help This option enables Clang’s Propeller build. When the Propeller profiles is specified in variable CLANG_PROPELLER_PROFILE_PREFIX @@ -968,10 +998,9 @@ config HAVE_CFI_ICALL_NORMALIZE_INTEGERS config HAVE_CFI_ICALL_NORMALIZE_INTEGERS_RUSTC def_bool y depends on HAVE_CFI_ICALL_NORMALIZE_INTEGERS - depends on RUSTC_VERSION >= 107900 depends on ARM64 || X86_64 # With GCOV/KASAN we need this fix: https://github.com/rust-lang/rust/pull/129373 - depends on (RUSTC_LLVM_VERSION >= 190103 && RUSTC_VERSION >= 108200) || \ + depends on RUSTC_LLVM_VERSION >= 190103 || \ (!GCOV_KERNEL && !KASAN_GENERIC && !KASAN_SW_TAGS) config CFI_PERMISSIVE @@ -1128,6 +1157,13 @@ config ARCH_WANTS_MODULES_DATA_IN_VMALLOC For architectures like powerpc/32 which have constraints on module allocation and need to allocate module data outside of module area. +config ARCH_WANTS_MODULES_TEXT_SECTIONS + bool + help + For architectures like 32-bit parisc which require that functions in + modules have to keep code in own text sections (-ffunction-sections) + and to avoid merging all text into one big text section, + config ARCH_WANTS_EXECMEM_LATE bool help @@ -1519,9 +1555,8 @@ config HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET def_bool n help An arch should select this symbol if it can support kernel stack - offset randomization with calls to add_random_kstack_offset() - during syscall entry and choose_random_kstack_offset() during - syscall exit. Careful removal of -fstack-protector-strong and + offset randomization with a call to add_random_kstack_offset() + during syscall entry. Careful removal of -fstack-protector-strong and -fstack-protector should also be applied to the entry code and closely examined, as the artificial stack bump looks like an array to the compiler, so it will attempt to add canary checks regardless @@ -1664,7 +1699,6 @@ config HAVE_SPARSE_SYSCALL_NR related optimizations for a given architecture. config ARCH_HAS_VDSO_ARCH_DATA - depends on HAVE_GENERIC_VDSO bool config ARCH_HAS_VDSO_TIME_DATA @@ -1841,4 +1875,7 @@ config ARCH_WANTS_PRE_LINK_VMLINUX config ARCH_HAS_CPU_ATTACK_VECTORS bool +config HAVE_ARCH_GET_SECUREBOOT + def_bool EFI + endmenu |