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--- a/libc/sysdeps/linux/i386/Makefile.arch
+++ b/libc/sysdeps/linux/i386/Makefile.arch
@@ -9,6 +9,7 @@ CSRC := brk.c sigaction.c __syscall_erro
SSRC := \
__longjmp.S vfork.S clone.S setjmp.S bsd-setjmp.S bsd-_setjmp.S \
- sync_file_range.S syscall.S mmap.S mmap64.S posix_fadvise64.S
+ sync_file_range.S syscall.S mmap.S mmap64.S posix_fadvise64.S \
+ s_copysign.S s_copysignf.S s_copysignl.S
include $(top_srcdir)libc/sysdeps/linux/Makefile.commonarch
--- /dev/null
+++ b/libc/sysdeps/linux/i386/s_copysign.S
@@ -0,0 +1,25 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#define _ERRNO_H 1
+#include <features.h>
+#include <bits/errno.h>
+
+.text
+.global copysign
+.type copysign,%function
+copysign:
+ movl 16(%esp),%edx
+ movl 8(%esp),%eax
+ andl $0x80000000,%edx
+ andl $0x7fffffff,%eax
+ orl %edx,%eax
+ movl %eax,8(%esp)
+ fldl 4(%esp)
+ ret
+.size copysign,.-copysign
+
+libc_hidden_def(copysign)
+
--- /dev/null
+++ b/libc/sysdeps/linux/i386/s_copysignf.S
@@ -0,0 +1,25 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#define _ERRNO_H 1
+#include <features.h>
+#include <bits/errno.h>
+
+.text
+.global copysignf
+.type copysignf,%function
+copysignf:
+ movl 8(%esp),%edx
+ movl 4(%esp),%eax
+ andl $0x80000000,%edx
+ andl $0x7fffffff,%eax
+ orl %edx,%eax
+ movl %eax,4(%esp)
+ flds 4(%esp)
+ ret
+.size copysignf,.-copysignf
+
+libc_hidden_def(copysignf)
+
--- /dev/null
+++ b/libc/sysdeps/linux/i386/s_copysignl.S
@@ -0,0 +1,26 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Changes for long double by Ulrich Drepper <drepper@cygnus.com>
+ * Public domain.
+ */
+
+#define _ERRNO_H 1
+#include <features.h>
+#include <bits/errno.h>
+
+.text
+.global copysignl
+.type copysignl,%function
+copysignl:
+ movl 24(%esp),%edx
+ movl 12(%esp),%eax
+ andl $0x8000,%edx
+ andl $0x7fff,%eax
+ orl %edx,%eax
+ movl %eax,12(%esp)
+ fldt 4(%esp)
+ ret
+.size copysignl,.-copysignl
+
+libc_hidden_def(copysignl)
+
|
