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