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authormostang.com!davidm <mostang.com!davidm>2003-03-20 07:51:37 +0000
committermostang.com!davidm <mostang.com!davidm>2003-03-20 07:51:37 +0000
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-'\" t
-.\" Manual page created with latex2man on Wed Mar 19 23:33:01 PST 2003
-.\" NOTE: This file is generated, DO NOT EDIT.
-.de Vb
-.ft CW
-.nf
-..
-.de Ve
-.ft R
-
-.fi
-..
-.TH "UNW\\_GET\\_FPREG" "3" "19 March 2003" "Programming Library " "Programming Library "
-.SH NAME
-
-.PP
-unw_get_fpreg \-\- get contents of floating\-point register
-.PP
-.SH SYNOPSIS
-
-.PP
-#include <libunwind.h>
-.br
-.PP
-int
-unw_get_fpreg(unw_cursor_t *cp,
-unw_regnum_t
-reg,
-unw_fpreg_t *valp);
-.br
-.PP
-.SH DESCRIPTION
-
-.PP
-The unw_get_fpreg()
-routine reads the value of floating\-point
-register reg
-in the stack frame identified by cursor cp
-and stores the value in the variable pointed to by valp\&.
-.PP
-The register numbering is target\-dependent and described in separate
-manual pages (e.g., libunwind\-ia64(3) for the IA\-64 target).
-Furthermore, the exact set of accessible registers may depend on the
-type of frame that cp
-is referring to. For ordinary stack
-frames, it is normally possible to access only the preserved
-(``callee\-saved\&'') registers and frame\-related registers (such as the
-stack\-pointer). However, for signal frames (see
-unw_is_signal_frame(3)),
-it is usually possible to access
-all registers.
-.PP
-Note that unw_get_fpreg()
-can only read the contents of
-floating\-point registers. See unw_get_fpreg(3)
-for a way to
-read registers which fit in a single word.
-.PP
-.SH RETURN VALUE
-
-.PP
-On successful completion, unw_get_fpreg()
-returns 0.
-Otherwise the negative value of one of the error\-codes below is
-returned.
-.PP
-.SH THREAD AND SIGNAL SAFETY
-
-.PP
-unw_get_fpreg()
-is thread\-safe as well as safe to use
-from a signal handler.
-.PP
-.SH ERRORS
-
-.PP
-.TP
-UNW_EUNSPEC
- An unspecified error occurred.
-.TP
-UNW_EBADREG
- An attempt was made to read a register
-that is either invalid or not accessible in the current frame.
-.PP
-In addition, unw_get_fpreg()
-may return any error returned by
-the access_mem(),
-access_reg(),
-and
-access_fpreg()
-call\-backs (see
-unw_create_addr_space(3)).
-.PP
-.SH SEE ALSO
-
-.PP
-libunwind(3),
-libunwind\-ia64(3),
-unw_get_reg(3),
-unw_is_fpreg(3),
-unw_is_signal_frame(3),
-unw_set_fpreg(3)
-.PP
-.SH AUTHOR
-
-.PP
-David Mosberger\-Tang
-.br
-Hewlett\-Packard Labs
-.br
-Palo\-Alto, CA 94304
-.br
-Email: \fBdavidm@hpl.hp.com\fP
-.br
-WWW: \fBhttp://www.hpl.hp.com/research/linux/libunwind/\fP\&.
-.\" NOTE: This file is generated, DO NOT EDIT.