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+'\" t
+.\" Manual page created with latex2man on Thu Aug 16 09:44:45 MDT 2007
+.\" NOTE: This file is generated, DO NOT EDIT.
+.de Vb
+.ft CW
+.nf
+..
+.de Ve
+.ft R
+
+.fi
+..
+.TH "UNW\\_GET\\_REG" "3" "16 August 2007" "Programming Library " "Programming Library "
+.SH NAME
+unw_get_reg
+\-\- get register contents 
+.PP
+.SH SYNOPSIS
+
+.PP
+#include <libunwind.h>
+.br
+.PP
+int
+unw_get_reg(unw_cursor_t *cp,
+unw_regnum_t
+reg,
+unw_word_t *valp);
+.br
+.PP
+.SH DESCRIPTION
+
+.PP
+The unw_get_reg()
+routine reads the value of register 
+reg
+in the stack frame identified by cursor cp
+and stores 
+the value in the word 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_reg()
+can only read the contents of 
+registers whose values fit in a single word. See 
+unw_get_fpreg(3)
+for a way to read registers which do not fit 
+this constraint. 
+.PP
+.SH RETURN VALUE
+
+.PP
+On successful completion, unw_get_reg()
+returns 0. 
+Otherwise the negative value of one of the error\-codes below is 
+returned. 
+.PP
+.SH THREAD AND SIGNAL SAFETY
+
+.PP
+unw_get_reg()
+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_reg()
+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_fpreg(3),
+unw_is_signal_frame(3),
+unw_set_reg(3)
+.PP
+.SH AUTHOR
+
+.PP
+David Mosberger\-Tang
+.br
+Email: \fBdmosberger@gmail.com\fP
+.br
+WWW: \fBhttp://www.nongnu.org/libunwind/\fP\&.
+.\" NOTE: This file is generated, DO NOT EDIT.