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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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#include <linux/types.h>
/* Values to pass as first argument to prctl() */
#define PR_SET_PDEATHSIG 1 /* Second arg is a signal */#define PR_GET_PDEATHSIG 2 /* Second arg is a ptr to return the signal */
/* Get/set current->mm->dumpable */#define PR_GET_DUMPABLE 3#define PR_SET_DUMPABLE 4
/* Get/set unaligned access control bits (if meaningful) */#define PR_GET_UNALIGN 5#define PR_SET_UNALIGN 6# define PR_UNALIGN_NOPRINT 1 /* silently fix up unaligned user accesses */# define PR_UNALIGN_SIGBUS 2 /* generate SIGBUS on unaligned user access */
/* Get/set whether or not to drop capabilities on setuid() away from * uid 0 (as per security/commoncap.c) */#define PR_GET_KEEPCAPS 7#define PR_SET_KEEPCAPS 8
/* Get/set floating-point emulation control bits (if meaningful) */#define PR_GET_FPEMU 9#define PR_SET_FPEMU 10# define PR_FPEMU_NOPRINT 1 /* silently emulate fp operations accesses */# define PR_FPEMU_SIGFPE 2 /* don't emulate fp operations, send SIGFPE instead */
/* Get/set floating-point exception mode (if meaningful) */#define PR_GET_FPEXC 11#define PR_SET_FPEXC 12# define PR_FP_EXC_SW_ENABLE 0x80 /* Use FPEXC for FP exception enables */# define PR_FP_EXC_DIV 0x010000 /* floating point divide by zero */# define PR_FP_EXC_OVF 0x020000 /* floating point overflow */# define PR_FP_EXC_UND 0x040000 /* floating point underflow */# define PR_FP_EXC_RES 0x080000 /* floating point inexact result */# define PR_FP_EXC_INV 0x100000 /* floating point invalid operation */# define PR_FP_EXC_DISABLED 0 /* FP exceptions disabled */# define PR_FP_EXC_NONRECOV 1 /* async non-recoverable exc. mode */# define PR_FP_EXC_ASYNC 2 /* async recoverable exception mode */# define PR_FP_EXC_PRECISE 3 /* precise exception mode */
/* Get/set whether we use statistical process timing or accurate timestamp * based process timing */#define PR_GET_TIMING 13#define PR_SET_TIMING 14# define PR_TIMING_STATISTICAL 0 /* Normal, traditional, statistical process timing */# define PR_TIMING_TIMESTAMP 1 /* Accurate timestamp based process timing */
#define PR_SET_NAME 15 /* Set process name */#define PR_GET_NAME 16 /* Get process name */
/* Get/set process endian */#define PR_GET_ENDIAN 19#define PR_SET_ENDIAN 20# define PR_ENDIAN_BIG 0# define PR_ENDIAN_LITTLE 1 /* True little endian mode */# define PR_ENDIAN_PPC_LITTLE 2 /* "PowerPC" pseudo little endian */
/* Get/set process seccomp mode */#define PR_GET_SECCOMP 21#define PR_SET_SECCOMP 22
/* Get/set the capability bounding set (as per security/commoncap.c) */#define PR_CAPBSET_READ 23#define PR_CAPBSET_DROP 24
/* Get/set the process' ability to use the timestamp counter instruction */#define PR_GET_TSC 25#define PR_SET_TSC 26# define PR_TSC_ENABLE 1 /* allow the use of the timestamp counter */# define PR_TSC_SIGSEGV 2 /* throw a SIGSEGV instead of reading the TSC */
/* Get/set securebits (as per security/commoncap.c) */#define PR_GET_SECUREBITS 27#define PR_SET_SECUREBITS 28
/* * Get/set the timerslack as used by poll/select/nanosleep * A value of 0 means "use default" */#define PR_SET_TIMERSLACK 29#define PR_GET_TIMERSLACK 30
#define PR_TASK_PERF_EVENTS_DISABLE 31#define PR_TASK_PERF_EVENTS_ENABLE 32
/* * Set early/late kill mode for hwpoison memory corruption. * This influences when the process gets killed on a memory corruption. */#define PR_MCE_KILL 33# define PR_MCE_KILL_CLEAR 0# define PR_MCE_KILL_SET 1
# define PR_MCE_KILL_LATE 0# define PR_MCE_KILL_EARLY 1# define PR_MCE_KILL_DEFAULT 2
#define PR_MCE_KILL_GET 34
/* * Tune up process memory map specifics. */#define PR_SET_MM 35# define PR_SET_MM_START_CODE 1# define PR_SET_MM_END_CODE 2# define PR_SET_MM_START_DATA 3# define PR_SET_MM_END_DATA 4# define PR_SET_MM_START_STACK 5# define PR_SET_MM_START_BRK 6# define PR_SET_MM_BRK 7# define PR_SET_MM_ARG_START 8# define PR_SET_MM_ARG_END 9# define PR_SET_MM_ENV_START 10# define PR_SET_MM_ENV_END 11# define PR_SET_MM_AUXV 12# define PR_SET_MM_EXE_FILE 13# define PR_SET_MM_MAP 14# define PR_SET_MM_MAP_SIZE 15
/* * This structure provides new memory descriptor * map which mostly modifies /proc/pid/stat[m] * output for a task. This mostly done in a * sake of checkpoint/restore functionality. */struct prctl_mm_map { __u64 start_code; /* code section bounds */ __u64 end_code; __u64 start_data; /* data section bounds */ __u64 end_data; __u64 start_brk; /* heap for brk() syscall */ __u64 brk; __u64 start_stack; /* stack starts at */ __u64 arg_start; /* command line arguments bounds */ __u64 arg_end; __u64 env_start; /* environment variables bounds */ __u64 env_end; __u64 *auxv; /* auxiliary vector */ __u32 auxv_size; /* vector size */ __u32 exe_fd; /* /proc/$pid/exe link file */};
/* * Set specific pid that is allowed to ptrace the current task. * A value of 0 mean "no process". */#define PR_SET_PTRACER 0x59616d61# define PR_SET_PTRACER_ANY ((unsigned long)-1)
#define PR_SET_CHILD_SUBREAPER 36#define PR_GET_CHILD_SUBREAPER 37
/* * If no_new_privs is set, then operations that grant new privileges (i.e. * execve) will either fail or not grant them. This affects suid/sgid, * file capabilities, and LSMs. * * Operations that merely manipulate or drop existing privileges (setresuid, * capset, etc.) will still work. Drop those privileges if you want them gone. * * Changing LSM security domain is considered a new privilege. So, for example, * asking selinux for a specific new context (e.g. with runcon) will result * in execve returning -EPERM. * * See Documentation/userspace-api/no_new_privs.rst for more details. */#define PR_SET_NO_NEW_PRIVS 38#define PR_GET_NO_NEW_PRIVS 39
#define PR_GET_TID_ADDRESS 40
/* * Flags for PR_SET_THP_DISABLE are only applicable when disabling. Bit 0 * is reserved, so PR_GET_THP_DISABLE can return "1 | flags", to effectively * return "1" when no flags were specified for PR_SET_THP_DISABLE. */#define PR_SET_THP_DISABLE 41/* * Don't disable THPs when explicitly advised (e.g., MADV_HUGEPAGE / * VM_HUGEPAGE, MADV_COLLAPSE). */# define PR_THP_DISABLE_EXCEPT_ADVISED (1 << 1)#define PR_GET_THP_DISABLE 42
/* * No longer implemented, but left here to ensure the numbers stay reserved: */#define PR_MPX_ENABLE_MANAGEMENT 43#define PR_MPX_DISABLE_MANAGEMENT 44
#define PR_SET_FP_MODE 45#define PR_GET_FP_MODE 46# define PR_FP_MODE_FR (1 << 0) /* 64b FP registers */# define PR_FP_MODE_FRE (1 << 1) /* 32b compatibility */
/* Control the ambient capability set */#define PR_CAP_AMBIENT 47# define PR_CAP_AMBIENT_IS_SET 1# define PR_CAP_AMBIENT_RAISE 2# define PR_CAP_AMBIENT_LOWER 3# define PR_CAP_AMBIENT_CLEAR_ALL 4
/* arm64 Scalable Vector Extension controls *//* Flag values must be kept in sync with ptrace NT_ARM_SVE interface */#define PR_SVE_SET_VL 50 /* set task vector length */# define PR_SVE_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */#define PR_SVE_GET_VL 51 /* get task vector length *//* Bits common to PR_SVE_SET_VL and PR_SVE_GET_VL */# define PR_SVE_VL_LEN_MASK 0xffff# define PR_SVE_VL_INHERIT (1 << 17) /* inherit across exec */
/* Per task speculation control */#define PR_GET_SPECULATION_CTRL 52#define PR_SET_SPECULATION_CTRL 53/* Speculation control variants */# define PR_SPEC_STORE_BYPASS 0# define PR_SPEC_INDIRECT_BRANCH 1# define PR_SPEC_L1D_FLUSH 2/* Return and control values for PR_SET/GET_SPECULATION_CTRL */# define PR_SPEC_NOT_AFFECTED 0# define PR_SPEC_PRCTL (1UL << 0)# define PR_SPEC_ENABLE (1UL << 1)# define PR_SPEC_DISABLE (1UL << 2)# define PR_SPEC_FORCE_DISABLE (1UL << 3)# define PR_SPEC_DISABLE_NOEXEC (1UL << 4)
/* Reset arm64 pointer authentication keys */#define PR_PAC_RESET_KEYS 54# define PR_PAC_APIAKEY (1UL << 0)# define PR_PAC_APIBKEY (1UL << 1)# define PR_PAC_APDAKEY (1UL << 2)# define PR_PAC_APDBKEY (1UL << 3)# define PR_PAC_APGAKEY (1UL << 4)
/* Tagged user address controls for arm64 and RISC-V */#define PR_SET_TAGGED_ADDR_CTRL 55#define PR_GET_TAGGED_ADDR_CTRL 56# define PR_TAGGED_ADDR_ENABLE (1UL << 0)/* MTE tag check fault modes */# define PR_MTE_TCF_NONE 0UL# define PR_MTE_TCF_SYNC (1UL << 1)# define PR_MTE_TCF_ASYNC (1UL << 2)# define PR_MTE_TCF_MASK (PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC)/* MTE tag inclusion mask */# define PR_MTE_TAG_SHIFT 3# define PR_MTE_TAG_MASK (0xffffUL << PR_MTE_TAG_SHIFT)/* Unused; kept only for source compatibility */# define PR_MTE_TCF_SHIFT 1/* MTE tag check store only */# define PR_MTE_STORE_ONLY (1UL << 19)/* RISC-V pointer masking tag length */# define PR_PMLEN_SHIFT 24# define PR_PMLEN_MASK (0x7fUL << PR_PMLEN_SHIFT)
/* Control reclaim behavior when allocating memory */#define PR_SET_IO_FLUSHER 57#define PR_GET_IO_FLUSHER 58
/* Dispatch syscalls to a userspace handler */#define PR_SET_SYSCALL_USER_DISPATCH 59# define PR_SYS_DISPATCH_OFF 0/* Enable dispatch except for the specified range */# define PR_SYS_DISPATCH_EXCLUSIVE_ON 1/* Enable dispatch for the specified range */# define PR_SYS_DISPATCH_INCLUSIVE_ON 2/* Legacy name for backwards compatibility */# define PR_SYS_DISPATCH_ON PR_SYS_DISPATCH_EXCLUSIVE_ON/* The control values for the user space selector when dispatch is enabled */# define SYSCALL_DISPATCH_FILTER_ALLOW 0# define SYSCALL_DISPATCH_FILTER_BLOCK 1
/* Set/get enabled arm64 pointer authentication keys */#define PR_PAC_SET_ENABLED_KEYS 60#define PR_PAC_GET_ENABLED_KEYS 61
/* Request the scheduler to share a core */#define PR_SCHED_CORE 62# define PR_SCHED_CORE_GET 0# define PR_SCHED_CORE_CREATE 1 /* create unique core_sched cookie */# define PR_SCHED_CORE_SHARE_TO 2 /* push core_sched cookie to pid */# define PR_SCHED_CORE_SHARE_FROM 3 /* pull core_sched cookie to pid */# define PR_SCHED_CORE_MAX 4# define PR_SCHED_CORE_SCOPE_THREAD 0# define PR_SCHED_CORE_SCOPE_THREAD_GROUP 1# define PR_SCHED_CORE_SCOPE_PROCESS_GROUP 2
/* arm64 Scalable Matrix Extension controls *//* Flag values must be in sync with SVE versions */#define PR_SME_SET_VL 63 /* set task vector length */# define PR_SME_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */#define PR_SME_GET_VL 64 /* get task vector length *//* Bits common to PR_SME_SET_VL and PR_SME_GET_VL */# define PR_SME_VL_LEN_MASK 0xffff# define PR_SME_VL_INHERIT (1 << 17) /* inherit across exec */
/* Memory deny write / execute */#define PR_SET_MDWE 65# define PR_MDWE_REFUSE_EXEC_GAIN (1UL << 0)# define PR_MDWE_NO_INHERIT (1UL << 1)
#define PR_GET_MDWE 66
#define PR_SET_VMA 0x53564d41# define PR_SET_VMA_ANON_NAME 0
#define PR_GET_AUXV 0x41555856
#define PR_SET_MEMORY_MERGE 67#define PR_GET_MEMORY_MERGE 68
#define PR_RISCV_V_SET_CONTROL 69#define PR_RISCV_V_GET_CONTROL 70# define PR_RISCV_V_VSTATE_CTRL_DEFAULT 0# define PR_RISCV_V_VSTATE_CTRL_OFF 1# define PR_RISCV_V_VSTATE_CTRL_ON 2# define PR_RISCV_V_VSTATE_CTRL_INHERIT (1 << 4)# define PR_RISCV_V_VSTATE_CTRL_CUR_MASK 0x3# define PR_RISCV_V_VSTATE_CTRL_NEXT_MASK 0xc# define PR_RISCV_V_VSTATE_CTRL_MASK 0x1f
#define PR_RISCV_SET_ICACHE_FLUSH_CTX 71# define PR_RISCV_CTX_SW_FENCEI_ON 0# define PR_RISCV_CTX_SW_FENCEI_OFF 1# define PR_RISCV_SCOPE_PER_PROCESS 0# define PR_RISCV_SCOPE_PER_THREAD 1
/* PowerPC Dynamic Execution Control Register (DEXCR) controls */#define PR_PPC_GET_DEXCR 72#define PR_PPC_SET_DEXCR 73/* DEXCR aspect to act on */# define PR_PPC_DEXCR_SBHE 0 /* Speculative branch hint enable */# define PR_PPC_DEXCR_IBRTPD 1 /* Indirect branch recurrent target prediction disable */# define PR_PPC_DEXCR_SRAPD 2 /* Subroutine return address prediction disable */# define PR_PPC_DEXCR_NPHIE 3 /* Non-privileged hash instruction enable *//* Action to apply / return */# define PR_PPC_DEXCR_CTRL_EDITABLE 0x1 /* Aspect can be modified with PR_PPC_SET_DEXCR */# define PR_PPC_DEXCR_CTRL_SET 0x2 /* Set the aspect for this process */# define PR_PPC_DEXCR_CTRL_CLEAR 0x4 /* Clear the aspect for this process */# define PR_PPC_DEXCR_CTRL_SET_ONEXEC 0x8 /* Set the aspect on exec */# define PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC 0x10 /* Clear the aspect on exec */# define PR_PPC_DEXCR_CTRL_MASK 0x1f
/* * Get the current shadow stack configuration for the current thread, * this will be the value configured via PR_SET_SHADOW_STACK_STATUS. */#define PR_GET_SHADOW_STACK_STATUS 74
/* * Set the current shadow stack configuration. Enabling the shadow * stack will cause a shadow stack to be allocated for the thread. */#define PR_SET_SHADOW_STACK_STATUS 75# define PR_SHADOW_STACK_ENABLE (1UL << 0)# define PR_SHADOW_STACK_WRITE (1UL << 1)# define PR_SHADOW_STACK_PUSH (1UL << 2)
/* * Prevent further changes to the specified shadow stack * configuration. All bits may be locked via this call, including * undefined bits. */#define PR_LOCK_SHADOW_STACK_STATUS 76
/* * Controls the mode of timer_create() for CRIU restore operations. * Enabling this allows CRIU to restore timers with explicit IDs. * * Don't use for normal operations as the result might be undefined. */#define PR_TIMER_CREATE_RESTORE_IDS 77# define PR_TIMER_CREATE_RESTORE_IDS_OFF 0# define PR_TIMER_CREATE_RESTORE_IDS_ON 1# define PR_TIMER_CREATE_RESTORE_IDS_GET 2
/* FUTEX hash management */#define PR_FUTEX_HASH 78# define PR_FUTEX_HASH_SET_SLOTS 1# define PR_FUTEX_HASH_GET_SLOTS 2
/* RSEQ time slice extensions */#define PR_RSEQ_SLICE_EXTENSION 79# define PR_RSEQ_SLICE_EXTENSION_GET 1# define PR_RSEQ_SLICE_EXTENSION_SET 2/* * Bits for RSEQ_SLICE_EXTENSION_GET/SET * PR_RSEQ_SLICE_EXT_ENABLE: Enable */# define PR_RSEQ_SLICE_EXT_ENABLE 0x01
/* * Get or set the control flow integrity (CFI) configuration for the * current thread. * * Some per-thread control flow integrity settings are not yet * controlled through this prctl(); see for example * PR_{GET,SET,LOCK}_SHADOW_STACK_STATUS */#define PR_GET_CFI 80#define PR_SET_CFI 81/* * Forward-edge CFI variants (excluding ARM64 BTI, which has its own * prctl()s). */#define PR_CFI_BRANCH_LANDING_PADS 0/* Return and control values for PR_{GET,SET}_CFI */# define PR_CFI_ENABLE _BITUL(0)# define PR_CFI_DISABLE _BITUL(1)# define PR_CFI_LOCK _BITUL(2)
#endif /* _LINUX_PRCTL_H */