The prctl(2) wrapper provided by glibc uses a variadic argument list. This means that the arguments *must* have the right type (and more importantly, the right width). To avoid the user having to cast these constants, provide them with the appropriate width, that of a long. Having the width of a long is sufficient, and we don't need UL. Let's reserve that suffix for bit fields, which need to be unsigned to avoid easily triggering undefined (or implementation-defined) behavior. Link: <https://inbox.sourceware.org/libc-alpha/x6r3yc6l34g4k5g3tm6ywecdqux54xlpid7bp2fa7hvm43luc7@6fjgaxgm5uyj/T/> Cc: <linux-api@xxxxxxxxxxxxxxx> Cc: <linux-man@xxxxxxxxxxxxxxx> Cc: <libc-alpha@xxxxxxxxxxxxxx> Signed-off-by: Alejandro Colomar <alx@xxxxxxxxxx> --- include/uapi/linux/prctl.h | 126 ++++++++++++++++++------------------- 1 file changed, 63 insertions(+), 63 deletions(-) diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h index 35791791a879..60e14adb8d20 100644 --- a/include/uapi/linux/prctl.h +++ b/include/uapi/linux/prctl.h @@ -16,8 +16,8 @@ /* 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 */ +# define PR_UNALIGN_NOPRINT 1L /* silently fix up unaligned user accesses */ +# define PR_UNALIGN_SIGBUS 2L /* 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) */ @@ -27,8 +27,8 @@ /* 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 */ +# define PR_FPEMU_NOPRINT 1L /* silently emulate fp operations accesses */ +# define PR_FPEMU_SIGFPE 2L /* don't emulate fp operations, send SIGFPE instead */ /* Get/set floating-point exception mode (if meaningful) */ #define PR_GET_FPEXC 11 @@ -39,18 +39,18 @@ # 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 */ +# define PR_FP_EXC_DISABLED 0L /* FP exceptions disabled */ +# define PR_FP_EXC_NONRECOV 1L /* async non-recoverable exc. mode */ +# define PR_FP_EXC_ASYNC 2L /* async recoverable exception mode */ +# define PR_FP_EXC_PRECISE 3L /* 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, +# define PR_TIMING_STATISTICAL 0L /* Normal, traditional, statistical process timing */ -# define PR_TIMING_TIMESTAMP 1 /* Accurate timestamp based +# define PR_TIMING_TIMESTAMP 1L /* Accurate timestamp based process timing */ #define PR_SET_NAME 15 /* Set process name */ @@ -59,9 +59,9 @@ /* 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 */ +# define PR_ENDIAN_BIG 0L +# define PR_ENDIAN_LITTLE 1L /* True little endian mode */ +# define PR_ENDIAN_PPC_LITTLE 2L /* "PowerPC" pseudo little endian */ /* Get/set process seccomp mode */ #define PR_GET_SECCOMP 21 @@ -74,8 +74,8 @@ /* 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 */ +# define PR_TSC_ENABLE 1L /* allow the use of the timestamp counter */ +# define PR_TSC_SIGSEGV 2L /* throw a SIGSEGV instead of reading the TSC */ /* Get/set securebits (as per security/commoncap.c) */ #define PR_GET_SECUREBITS 27 @@ -96,12 +96,12 @@ * 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_CLEAR 0L +# define PR_MCE_KILL_SET 1L -# define PR_MCE_KILL_LATE 0 -# define PR_MCE_KILL_EARLY 1 -# define PR_MCE_KILL_DEFAULT 2 +# define PR_MCE_KILL_LATE 0L +# define PR_MCE_KILL_EARLY 1L +# define PR_MCE_KILL_DEFAULT 2L #define PR_MCE_KILL_GET 34 @@ -109,21 +109,21 @@ * 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 +# define PR_SET_MM_START_CODE 1L +# define PR_SET_MM_END_CODE 2L +# define PR_SET_MM_START_DATA 3L +# define PR_SET_MM_END_DATA 4L +# define PR_SET_MM_START_STACK 5L +# define PR_SET_MM_START_BRK 6L +# define PR_SET_MM_BRK 7L +# define PR_SET_MM_ARG_START 8L +# define PR_SET_MM_ARG_END 9L +# define PR_SET_MM_ENV_START 10L +# define PR_SET_MM_ENV_END 11L +# define PR_SET_MM_AUXV 12L +# define PR_SET_MM_EXE_FILE 13L +# define PR_SET_MM_MAP 14L +# define PR_SET_MM_MAP_SIZE 15L /* * This structure provides new memory descriptor @@ -193,10 +193,10 @@ struct prctl_mm_map { /* 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 +# define PR_CAP_AMBIENT_IS_SET 1L +# define PR_CAP_AMBIENT_RAISE 2L +# define PR_CAP_AMBIENT_LOWER 3L +# define PR_CAP_AMBIENT_CLEAR_ALL 4L /* arm64 Scalable Vector Extension controls */ /* Flag values must be kept in sync with ptrace NT_ARM_SVE interface */ @@ -211,9 +211,9 @@ struct prctl_mm_map { #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 +# define PR_SPEC_STORE_BYPASS 0L +# define PR_SPEC_INDIRECT_BRANCH 1L +# define PR_SPEC_L1D_FLUSH 2L /* Return and control values for PR_SET/GET_SPECULATION_CTRL */ # define PR_SPEC_NOT_AFFECTED 0 # define PR_SPEC_PRCTL (1UL << 0) @@ -251,11 +251,11 @@ struct prctl_mm_map { /* Dispatch syscalls to a userspace handler */ #define PR_SET_SYSCALL_USER_DISPATCH 59 -# define PR_SYS_DISPATCH_OFF 0 -# define PR_SYS_DISPATCH_ON 1 +# define PR_SYS_DISPATCH_OFF 0L +# define PR_SYS_DISPATCH_ON 1L /* The control values for the user space selector when dispatch is enabled */ -# define SYSCALL_DISPATCH_FILTER_ALLOW 0 -# define SYSCALL_DISPATCH_FILTER_BLOCK 1 +# define SYSCALL_DISPATCH_FILTER_ALLOW 0L +# define SYSCALL_DISPATCH_FILTER_BLOCK 1L /* Set/get enabled arm64 pointer authentication keys */ #define PR_PAC_SET_ENABLED_KEYS 60 @@ -263,14 +263,14 @@ struct prctl_mm_map { /* 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 +# define PR_SCHED_CORE_GET 0L +# define PR_SCHED_CORE_CREATE 1L /* create unique core_sched cookie */ +# define PR_SCHED_CORE_SHARE_TO 2L /* push core_sched cookie to pid */ +# define PR_SCHED_CORE_SHARE_FROM 3L /* pull core_sched cookie to pid */ +# define PR_SCHED_CORE_MAX 4L +# define PR_SCHED_CORE_SCOPE_THREAD 0L +# define PR_SCHED_CORE_SCOPE_THREAD_GROUP 1L +# define PR_SCHED_CORE_SCOPE_PROCESS_GROUP 2L /* arm64 Scalable Matrix Extension controls */ /* Flag values must be in sync with SVE versions */ @@ -289,7 +289,7 @@ struct prctl_mm_map { #define PR_GET_MDWE 66 #define PR_SET_VMA 0x53564d41 -# define PR_SET_VMA_ANON_NAME 0 +# define PR_SET_VMA_ANON_NAME 0L #define PR_GET_AUXV 0x41555856 @@ -307,19 +307,19 @@ struct prctl_mm_map { # 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 +# define PR_RISCV_CTX_SW_FENCEI_ON 0L +# define PR_RISCV_CTX_SW_FENCEI_OFF 1L +# define PR_RISCV_SCOPE_PER_PROCESS 0L +# define PR_RISCV_SCOPE_PER_THREAD 1L /* 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 */ +# define PR_PPC_DEXCR_SBHE 0L /* Speculative branch hint enable */ +# define PR_PPC_DEXCR_IBRTPD 1L /* Indirect branch recurrent target prediction disable */ +# define PR_PPC_DEXCR_SRAPD 2L /* Subroutine return address prediction disable */ +# define PR_PPC_DEXCR_NPHIE 3L /* 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 */ -- 2.45.1
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