commit 7e4d07553ab83ae3e9ebbe40004860a9da1659c4
parent 125469acbb4d8731925172fe3465f03c0eb21911
Author: Eyal Sawady <ecs@d2evs.net>
Date: Wed, 1 Sep 2021 23:41:06 +0000
rt: add prctl
Signed-off-by: Eyal Sawady <ecs@d2evs.net>
Diffstat:
4 files changed, 180 insertions(+), 0 deletions(-)
diff --git a/rt/+linux/prctl.ha b/rt/+linux/prctl.ha
@@ -0,0 +1,166 @@
+export def PR_SET_PDEATHSIG: int = 1;
+export def PR_GET_PDEATHSIG: int = 2;
+export def PR_GET_DUMPABLE: u64 = 3;
+export def PR_SET_DUMPABLE: int = 4;
+export def PR_GET_UNALIGN: int = 5;
+export def PR_SET_UNALIGN: int = 6;
+export def PR_UNALIGN_NOPRINT: u64 = 1;
+export def PR_UNALIGN_SIGBUS: u64 = 2;
+export def PR_GET_KEEPCAPS: int = 7;
+export def PR_SET_KEEPCAPS: int = 8;
+export def PR_GET_FPEMU: int = 9;
+export def PR_SET_FPEMU: int = 10;
+export def PR_FPEMU_NOPRINT: u64 = 1;
+export def PR_FPEMU_SIGFPE: u64 = 2;
+export def PR_GET_FPEXC: int = 11;
+export def PR_SET_FPEXC: int = 12;
+export def PR_FP_EXC_SW_ENABLE: u64 = 0x80;
+export def PR_FP_EXC_DIV: u64 = 0x010000;
+export def PR_FP_EXC_OVF: u64 = 0x020000;
+export def PR_FP_EXC_UND: u64 = 0x040000;
+export def PR_FP_EXC_RES: u64 = 0x080000;
+export def PR_FP_EXC_INV: u64 = 0x100000;
+export def PR_FP_EXC_DISABLED: u64 = 0;
+export def PR_FP_EXC_NONRECOV: u64 = 1;
+export def PR_FP_EXC_ASYNC: u64 = 2;
+export def PR_FP_EXC_PRECISE: u64 = 3;
+export def PR_GET_TIMING: int = 13;
+export def PR_SET_TIMING: int = 14;
+export def PR_TIMING_STATISTICAL: u64 = 0;
+export def PR_TIMING_TIMESTAMP: u64 = 1;
+export def PR_SET_NAME: int = 15;
+export def PR_GET_NAME: int = 16;
+export def PR_GET_ENDIAN: int = 19;
+export def PR_SET_ENDIAN: int = 20;
+export def PR_ENDIAN_BIG: u64 = 0;
+export def PR_ENDIAN_LITTLE: u64 = 1;
+export def PR_ENDIAN_PPC_LITTLE: u64 = 2;
+export def PR_GET_SECCOMP: int = 21;
+export def PR_SET_SECCOMP: int = 22;
+export def PR_CAPBSET_READ: int = 23;
+export def PR_CAPBSET_DROP: int = 24;
+export def PR_GET_TSC: int = 25;
+export def PR_SET_TSC: int = 26;
+export def PR_TSC_ENABLE: u64 = 1;
+export def PR_TSC_SIGSEGV: u64 = 2;
+export def PR_GET_SECUREBITS: int = 27;
+export def PR_SET_SECUREBITS: int = 28;
+export def PR_SET_TIMERSLACK: int = 29;
+export def PR_GET_TIMERSLACK: int = 30;
+
+export def PR_TASK_PERF_EVENTS_DISABLE: int = 31;
+export def PR_TASK_PERF_EVENTS_ENABLE: int = 32;
+
+export def PR_MCE_KILL: int = 33;
+export def PR_MCE_KILL_CLEAR: u64 = 0;
+export def PR_MCE_KILL_SET: u64 = 1;
+export def PR_MCE_KILL_LATE: u64 = 0;
+export def PR_MCE_KILL_EARLY: u64 = 1;
+export def PR_MCE_KILL_DEFAULT: u64 = 2;
+export def PR_MCE_KILL_GET: int = 34;
+
+export def PR_SET_MM: int = 35;
+export def PR_SET_MM_START_CODE: u64 = 1;
+export def PR_SET_MM_END_CODE: u64 = 2;
+export def PR_SET_MM_START_DATA: u64 = 3;
+export def PR_SET_MM_END_DATA: u64 = 4;
+export def PR_SET_MM_START_STACK: u64 = 5;
+export def PR_SET_MM_START_BRK: u64 = 6;
+export def PR_SET_MM_BRK: u64 = 7;
+export def PR_SET_MM_ARG_START: u64 = 8;
+export def PR_SET_MM_ARG_END: u64 = 9;
+export def PR_SET_MM_ENV_START: u64 = 10;
+export def PR_SET_MM_ENV_END: u64 = 11;
+export def PR_SET_MM_AUXV: u64 = 12;
+export def PR_SET_MM_EXE_FILE: u64 = 13;
+export def PR_SET_MM_MAP: u64 = 14;
+export def PR_SET_MM_MAP_SIZE: u64 = 15;
+
+export type prctl_mm_map = struct {
+ start_code: u64,
+ end_code: u64,
+ start_data: u64,
+ end_data: u64,
+ start_brk: u64,
+ brk: u64,
+ start_stack: u64,
+ arg_start: u64,
+ arg_end: u64,
+ env_start: u64,
+ env_end: u64,
+ auxv: *u64,
+ auxv_size: u32,
+ exe_fd: u32,
+};
+
+export def PR_SET_PTRACER: int = 0x59616d61;
+export def PR_SET_PTRACER_ANY: u64 = -1;
+
+export def PR_SET_CHILD_SUBREAPER: int = 36;
+export def PR_GET_CHILD_SUBREAPER: int = 37;
+
+export def PR_SET_NO_NEW_PRIVS: int = 38;
+export def PR_GET_NO_NEW_PRIVS: int = 39;
+
+export def PR_GET_TID_ADDRESS: int = 40;
+
+export def PR_SET_THP_DISABLE: int = 41;
+export def PR_GET_THP_DISABLE: int = 42;
+
+export def PR_MPX_ENABLE_MANAGEMENT: int = 43;
+export def PR_MPX_DISABLE_MANAGEMENT: int = 44;
+
+export def PR_SET_FP_MODE: int = 45;
+export def PR_GET_FP_MODE: int = 46;
+export def PR_FP_MODE_FR: u64 = 1 << 0;
+export def PR_FP_MODE_FRE: u64 = 1 << 1;
+
+export def PR_CAP_AMBIENT: int = 47;
+export def PR_CAP_AMBIENT_IS_SET: u64 = 1;
+export def PR_CAP_AMBIENT_RAISE: u64 = 2;
+export def PR_CAP_AMBIENT_LOWER: u64 = 3;
+export def PR_CAP_AMBIENT_CLEAR_ALL: u64 = 4;
+
+export def PR_SVE_SET_VL: int = 50;
+export def PR_SVE_SET_VL_ONEXEC: u64 = 1 << 18;
+export def PR_SVE_GET_VL: int = 51;
+export def PR_SVE_VL_LEN_MASK: u64 = 0xffff;
+export def PR_SVE_VL_INHERIT: u64 = 1 << 17;
+
+export def PR_GET_SPECULATION_CTRL: int = 52;
+export def PR_SET_SPECULATION_CTRL: int = 53;
+export def PR_SPEC_STORE_BYPASS: u64 = 0;
+export def PR_SPEC_INDIRECT_BRANCH: u64 = 1;
+export def PR_SPEC_NOT_AFFECTED: u64 = 0;
+export def PR_SPEC_PRCTL: u64 = 1 << 0;
+export def PR_SPEC_ENABLE: u64 = 1 << 1;
+export def PR_SPEC_DISABLE: u64 = 1 << 2;
+export def PR_SPEC_FORCE_DISABLE: u64 = 1 << 3;
+export def PR_SPEC_DISABLE_NOEXEC: u64 = 1 << 4;
+
+export def PR_PAC_RESET_KEYS: int = 54;
+export def PR_PAC_APIAKEY: u64 = 1 << 0;
+export def PR_PAC_APIBKEY: u64 = 1 << 1;
+export def PR_PAC_APDAKEY: u64 = 1 << 2;
+export def PR_PAC_APDBKEY: u64 = 1 << 3;
+export def PR_PAC_APGAKEY: u64 = 1 << 4;
+
+export def PR_SET_TAGGED_ADDR_CTRL: int = 55;
+export def PR_GET_TAGGED_ADDR_CTRL: int = 56;
+export def PR_TAGGED_ADDR_ENABLE: u64 = 1 << 0;
+export def PR_MTE_TCF_SHIFT: u64 = 1;
+export def PR_MTE_TCF_NONE: u64 = 0 << 1;
+export def PR_MTE_TCF_SYNC: u64 = 1 << 1;
+export def PR_MTE_TCF_ASYNC: u64 = 2 << 1;
+export def PR_MTE_TCF_MASK: u64 = 3 << 1;
+export def PR_MTE_TAG_SHIFT: u64 = 3;
+export def PR_MTE_TAG_MASK: u64 = 0xffff << 3;
+
+export def PR_SET_IO_FLUSHER: int = 57;
+export def PR_GET_IO_FLUSHER: int = 58;
+
+export def PR_SET_SYSCALL_USER_DISPATCH: int = 59;
+export def PR_SYS_DISPATCH_OFF: u64 = 0;
+export def PR_SYS_DISPATCH_ON: u64 = 1;
+export def SYSCALL_DISPATCH_FILTER_ALLOW: u64 = 0;
+export def SYSCALL_DISPATCH_FILTER_BLOCK: u64 = 1;
diff --git a/rt/+linux/syscalls.ha b/rt/+linux/syscalls.ha
@@ -661,3 +661,14 @@ export fn mlockall(flags: int) (void | errno) = {
export fn munlockall() (void | errno) = {
return wrap_return(syscall0(SYS_munlockall))?: void;
};
+
+export fn prctl(
+ option: int,
+ arg2: u64,
+ arg3: u64,
+ arg4: u64,
+ arg5: u64,
+) (int | errno) = {
+ return wrap_return(syscall5(SYS_prctl, option: u64, arg2, arg3, arg4,
+ arg5))?: int;
+};
diff --git a/scripts/gen-stdlib b/scripts/gen-stdlib
@@ -22,6 +22,7 @@ gensrcs_rt() {
'$(PLATFORM)/types.ha' \
'$(PLATFORM)/segmalloc.ha' \
'$(PLATFORM)/platformstart.ha' \
+ '$(PLATFORM)/prctl.ha' \
'$(PLATFORM)/$(ARCH).ha' \
'$(PLATFORM)/syscallno$(ARCH).ha' \
'$(PLATFORM)/syscalls.ha' \
diff --git a/stdlib.mk b/stdlib.mk
@@ -9,6 +9,7 @@ stdlib_rt_srcs= \
$(STDLIB)/rt/$(PLATFORM)/types.ha \
$(STDLIB)/rt/$(PLATFORM)/segmalloc.ha \
$(STDLIB)/rt/$(PLATFORM)/platformstart.ha \
+ $(STDLIB)/rt/$(PLATFORM)/prctl.ha \
$(STDLIB)/rt/$(PLATFORM)/$(ARCH).ha \
$(STDLIB)/rt/$(PLATFORM)/syscallno$(ARCH).ha \
$(STDLIB)/rt/$(PLATFORM)/syscalls.ha \
@@ -1215,6 +1216,7 @@ testlib_rt_srcs= \
$(STDLIB)/rt/$(PLATFORM)/types.ha \
$(STDLIB)/rt/$(PLATFORM)/segmalloc.ha \
$(STDLIB)/rt/$(PLATFORM)/platformstart.ha \
+ $(STDLIB)/rt/$(PLATFORM)/prctl.ha \
$(STDLIB)/rt/$(PLATFORM)/$(ARCH).ha \
$(STDLIB)/rt/$(PLATFORM)/syscallno$(ARCH).ha \
$(STDLIB)/rt/$(PLATFORM)/syscalls.ha \
