Info: (gdb) Standard Target Features

gdb: Standard Target Features

 
 G.5 Standard Target Features
 ============================
 
 A target description must contain either no registers or all the
 target's registers.  If the description contains no registers, then GDB
 will assume a default register layout, selected based on the
 architecture.  If the description contains any registers, the default
 layout will not be used; the standard registers must be described in the
 target description, in such a way that GDB can recognize them.
 
    This is accomplished by giving specific names to feature elements
 which contain standard registers.  GDB will look for features with those
 names and verify that they contain the expected registers; if any known
 feature is missing required registers, or if any required feature is
 missing, GDB will reject the target description.  You can add additional
 registers to any of the standard features -- GDB will display them just
 as if they were added to an unrecognized feature.
 
    This section lists the known features and their expected contents.
 Sample XML documents for these features are included in the GDB source
 tree, in the directory 'gdb/features'.
 
    Names recognized by GDB should include the name of the company or
 organization which selected the name, and the overall architecture to
 which the feature applies; so e.g. the feature containing ARM core
 registers is named 'org.gnu.gdb.arm.core'.
 
    The names of registers are not case sensitive for the purpose of
 recognizing standard features, but GDB will only display registers using
 the capitalization used in the description.
gdb: Standard Target Features

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