hare

commit 3370d5374b4bf7f9f0e76d3d406f0e61f0d5df5f
parent a129bf33fda5f38248a33c7181752fb018b6bb4a
Author: Drew DeVault <sir@cmpwn.com>
Date:   Tue,  2 Jan 2024 12:35:03 +0100

rt: add ucontext structures for +linux

Signed-off-by: Drew DeVault <sir@cmpwn.com>

Diffstat:
M
rt/+linux/+aarch64.ha
 | 
18
++++++++++++++++++
M
rt/+linux/+riscv64.ha
 | 
72
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M
rt/+linux/+x86_64.ha
 | 
39
+++++++++++++++++++++++++++++++++++++++

3 files changed, 129 insertions(+), 0 deletions(-)
diff --git a/rt/+linux/+aarch64.ha b/rt/+linux/+aarch64.ha
@@ -51,3 +51,21 @@ export type epoll_event = struct {
 export type cpu_set = struct {
 	__bits: [16]u64,
 };
+
+export type ucontext = struct {
+	uc_flags: u64,
+	uc_link: *ucontext,
+	uc_stack: stack_t,
+	uc_sigmask: sigset,
+	_u8: [1024 / 8 - size(sigset)]u8,
+	uc_mcontext: sigcontext,
+};
+
+export type sigcontext = struct {
+	fault_address: u64,
+	sp: u64,
+	regs: [31]u64,
+	pc: u64,
+	pstate: u64,
+	reserved: [4096]u8,
+};
diff --git a/rt/+linux/+riscv64.ha b/rt/+linux/+riscv64.ha
@@ -49,3 +49,75 @@ export type epoll_event = struct {
 export type cpu_set = struct {
 	__bits: [16]u64,
 };
+
+export type ucontext = struct {
+	uc_flags: u64,
+	uc_link: *ucontext,
+	uc_stack: stack_t,
+	uc_sigmask: sigset,
+	_u8: [1024 / 8 - size(sigset)]u8,
+	uc_mcontext: sigcontext,
+};
+
+export type sigcontext = struct {
+	sc_regs: user_regs,
+	sc_fpregs: fp_state,
+};
+
+export type user_regs = struct {
+	x0: u64, // XXX: Why is this here?
+	pc: u64,
+	ra: u64,
+	sp: u64,
+	gp: u64,
+	tp: u64,
+	t0: u64,
+	t1: u64,
+	t2: u64,
+	s0: u64,
+	s1: u64,
+	a0: u64,
+	a1: u64,
+	a2: u64,
+	a3: u64,
+	a4: u64,
+	a5: u64,
+	a6: u64,
+	a7: u64,
+	s2: u64,
+	s3: u64,
+	s4: u64,
+	s5: u64,
+	s6: u64,
+	s7: u64,
+	s8: u64,
+	s9: u64,
+	s10: u64,
+	s11: u64,
+	t3: u64,
+	t4: u64,
+	t5: u64,
+	t6: u64,
+};
+
+export type fp_state = union {
+	f: f_ext_state,
+	d: d_ext_state,
+	q: q_ext_state,
+};
+
+export type f_ext_state = struct {
+	f: [32]u32,
+	fcsr: u32,
+};
+
+export type d_ext_state = struct {
+	f: [32]u64,
+	fcsr: u32,
+};
+
+export type q_ext_state = struct {
+	f: [64]u64,
+	fcsr: u32,
+	reserved: [3]u32,
+};
diff --git a/rt/+linux/+x86_64.ha b/rt/+linux/+x86_64.ha
@@ -54,3 +54,42 @@ export type cpu_set = struct {
 export fn alarm(seconds: uint) uint = {
 	return syscall1(SYS_alarm, seconds: u64): uint;
 };
+
+export type ucontext = struct {
+	uc_flags: u64,
+	uc_link: *ucontext,
+	uc_stack: stack_t,
+	uc_mcontext: sigcontext,
+	uc_sigmask: sigset,
+};
+
+export type sigcontext = struct {
+	r8: u64,
+	r9: u64,
+	r10: u64,
+	r11: u64,
+	r12: u64,
+	r13: u64,
+	r14: u64,
+	r15: u64,
+	di: u64,
+	si: u64,
+	bp: u64,
+	bx: u64,
+	dx: u64,
+	ax: u64,
+	cx: u64,
+	sp: u64,
+	ip: u64,
+	flags: u64,
+	cs: u16,
+	gs: u16,
+	fs: u16,
+	ss: u16,
+	err: u64,
+	trapno: u64,
+	oldmask: u64,
+	cr2: u64,
+	fpstate: u64,
+	reserved1: [8]u64,
+};