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Diffstat (limited to 'static/netbsd/man3/dwarf_formexprloc.3')
| -rw-r--r-- | static/netbsd/man3/dwarf_formexprloc.3 | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/static/netbsd/man3/dwarf_formexprloc.3 b/static/netbsd/man3/dwarf_formexprloc.3 new file mode 100644 index 00000000..eacb3837 --- /dev/null +++ b/static/netbsd/man3/dwarf_formexprloc.3 @@ -0,0 +1,113 @@ +.\" $NetBSD: dwarf_formexprloc.3,v 1.6 2024/03/03 17:37:31 christos Exp $ +.\" +.\" Copyright (c) 2010 Joseph Koshy +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" Id: dwarf_formexprloc.3 3962 2022-03-12 15:56:10Z jkoshy +.\" +.Dd July 25, 2010 +.Dt DWARF_FORMEXPRLOC 3 +.Os +.Sh NAME +.Nm dwarf_formexprloc +.Nd return information about a location expression +.Sh LIBRARY +.Lb libdwarf +.Sh SYNOPSIS +.In libdwarf.h +.Ft int +.Fo dwarf_formexprloc +.Fa "Dwarf_Attribute attr" +.Fa "Dwarf_Unsigned *retlen" +.Fa "Dwarf_Ptr *retexpr" +.Fa "Dwarf_Error *err" +.Fc +.Sh DESCRIPTION +Function +.Fn dwarf_formexprloc +allows an application to retrieve the length and the bytes of a +DWARF location expression. +.Pp +Argument +.Fa attr +should reference a DWARF attribute of the form +.Dv DW_FORM_exprloc . +Argument +.Fa retlen +should point to a location that will be set to the length of the +location expression. +Argument +.Fa retexpr +should point to a location that will be set to a pointer to the +content of the location expression itself. +.Pp +If argument +.Fa err +is not +.Dv NULL , +it will be used to return an error descriptor in case of an error. +.Ss Memory Management +The application should not attempt to free the memory +area referenced by the pointer returned in argument +.Fa retexpr . +.Sh RETURN VALUES +Function +.Fn dwarf_formexprloc +returns +.Dv DW_DLV_OK +on success. +In case of an error, it returns +.Dv DW_DLV_ERROR +and sets argument +.Fa err . +.Sh ERRORS +Function +.Fn dwarf_formexprloc +may fail with the following errors: +.Bl -tag -width ".Bq Er DW_DLE_ATTR_FORM_BAD" +.It Bq Er DW_DLE_ARGUMENT +One of arguments +.Fa attr , +.Fa retlen +or +.Fa retexpr +was +.Dv NULL . +.It Bq Er DW_DLE_ATTR_FORM_BAD +The attribute referenced by argument +.Fa attr +was not of form +.Dv DW_FORM_exprloc . +.El +.Sh SEE ALSO +.Xr dwarf 3 , +.Xr dwarf_attr 3 , +.Xr dwarf_formblock 3 , +.Xr dwarf_formflag 3 , +.Xr dwarf_formref 3 , +.Xr dwarf_formsdata 3 , +.Xr dwarf_formsig8 3 , +.Xr dwarf_formstring 3 , +.Xr dwarf_formudata 3 , +.Xr dwarf_hasattr 3 |
