From 4abab5ad6c8465a7528ccdd5f49367da05f78bbd Mon Sep 17 00:00:00 2001
From: Vladimir Azarov <avm@intermediate-node.net>
Date: Tue, 1 Oct 2024 15:47:05 +0200
Subject: Initial version

---
 src/signal/x32/getitimer.c |  7 +++++++
 src/signal/x32/restore.s   |  8 ++++++++
 src/signal/x32/setitimer.c |  7 +++++++
 src/signal/x32/sigsetjmp.s | 25 +++++++++++++++++++++++++
 4 files changed, 47 insertions(+)
 create mode 100644 src/signal/x32/getitimer.c
 create mode 100644 src/signal/x32/restore.s
 create mode 100644 src/signal/x32/setitimer.c
 create mode 100644 src/signal/x32/sigsetjmp.s

(limited to 'src/signal/x32')

diff --git a/src/signal/x32/getitimer.c b/src/signal/x32/getitimer.c
new file mode 100644
index 0000000..8a8046a
--- /dev/null
+++ b/src/signal/x32/getitimer.c
@@ -0,0 +1,7 @@
+#include <sys/time.h>
+#include "syscall.h"
+
+int getitimer(int which, struct itimerval *old)
+{
+	return syscall(SYS_getitimer, which, old);
+}
diff --git a/src/signal/x32/restore.s b/src/signal/x32/restore.s
new file mode 100644
index 0000000..1117446
--- /dev/null
+++ b/src/signal/x32/restore.s
@@ -0,0 +1,8 @@
+	nop
+.global __restore_rt
+.hidden __restore_rt
+.type __restore_rt,@function
+__restore_rt:
+	mov $0x40000201, %rax /* SYS_rt_sigreturn */
+	syscall
+.size __restore_rt,.-__restore_rt
diff --git a/src/signal/x32/setitimer.c b/src/signal/x32/setitimer.c
new file mode 100644
index 0000000..21b1f45
--- /dev/null
+++ b/src/signal/x32/setitimer.c
@@ -0,0 +1,7 @@
+#include <sys/time.h>
+#include "syscall.h"
+
+int setitimer(int which, const struct itimerval *restrict new, struct itimerval *restrict old)
+{
+	return syscall(SYS_setitimer, which, new, old);
+}
diff --git a/src/signal/x32/sigsetjmp.s b/src/signal/x32/sigsetjmp.s
new file mode 100644
index 0000000..1f02b0e
--- /dev/null
+++ b/src/signal/x32/sigsetjmp.s
@@ -0,0 +1,25 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+	test %esi,%esi
+	jz 1f
+
+	popq 64(%rdi)
+	mov %rbx,72+8(%rdi)
+	mov %rdi,%rbx
+
+	call setjmp@PLT
+
+	pushq 64(%rbx)
+	movl $0, 4(%rsp)
+	mov %rbx,%rdi
+	mov %eax,%esi
+	mov 72+8(%rbx),%rbx
+
+.hidden __sigsetjmp_tail
+	jmp __sigsetjmp_tail
+
+1:	jmp setjmp@PLT
-- 
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