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dtc: cpp co-existence: allow names starting with # to be escaped

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The device tree language as currently defined conflicts with the C pre-
processor in one aspect - when a property or node name begins with a #
character, a pre-processor would attempt to interpret it as a directive,
fail, and most likely error out.

This change allows a property/node name to be prefixed with \. This
prevents a pre-processor from seeing # as the first non-whitespace
character on the line, and hence prevents the conflict. \ was previously
an illegal character in property/node names, so this change is
backwards compatible. The \ is stripped from the name during parsing
by dtc.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Stephen Warren 2012-09-27 17:11:04 -06:00 • committed by Jon Loeliger
parent 45013d8619
commit 1ff3d3f8de
6 changed files with 57 additions and 3 deletions
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2
tests/Makefile.tests
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@ -12,7 +12,7 @@ LIB_TESTS_L = get_mem_rsv \
sw_tree1 \
move_and_save mangle-layout nopulate \
open_pack rw_tree1 set_name setprop del_property del_node \
appendprop1 appendprop2 \
appendprop1 appendprop2 propname_escapes \
string_escapes references path-references phandle_format \
boot-cpuid incbin \
extra-terminating-null \