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dtc/tests/trees.S

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libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
#include <fdt.h>
#include "testdata.h"
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
#define FDTLONG(val) \
.byte ((val) >> 24) & 0xff ; \
.byte ((val) >> 16) & 0xff ; \
.byte ((val) >> 8) & 0xff ; \
.byte (val) & 0xff
#define FDTQUAD(val) \
.byte ((val) >> 56) & 0xff ; \
.byte ((val) >> 48) & 0xff ; \
.byte ((val) >> 40) & 0xff ; \
.byte ((val) >> 32) & 0xff ; \
.byte ((val) >> 24) & 0xff ; \
.byte ((val) >> 16) & 0xff ; \
.byte ((val) >> 8) & 0xff ; \
.byte (val) & 0xff
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
#define TREE_HDR(tree) \
libfdt: Fix bounds-checking bug in fdt_get_property() The libfdt functions are supposed to behave tolerably well when practical, even if given a corrupted device tree as input. A silly mistake in fdt_get_property() means we're bounds checking against the size of a pointer instead of the size of a property header, meaning we can get bogus behaviour in a corrupted device tree where the structure block ends in what's supposed to be the middle of a property. This patch corrects the problem (fdt_get_property() will now return BADSTRUCTURE in this case), and also adds a testcase to catch the bug.
18 years ago
.balign 4 ; \
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
.globl _##tree ; \
_##tree: \
tree: \
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
FDTLONG(FDT_MAGIC) ; \
FDTLONG(tree##_end - tree) ; \
FDTLONG(tree##_struct - tree) ; \
FDTLONG(tree##_strings - tree) ; \
FDTLONG(tree##_rsvmap - tree) ; \
FDTLONG(0x11) ; \
FDTLONG(0x10) ; \
FDTLONG(0) ; \
FDTLONG(tree##_end - tree##_strings) ; \
FDTLONG(tree##_strings - tree##_struct) ;
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
#define RSVMAP_ENTRY(addr, len) \
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
FDTQUAD(addr) ; \
FDTQUAD(len) ;
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
#define PROPHDR(tree, name, len) \
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
FDTLONG(FDT_PROP) ; \
libfdt: Use correct property format Since its beginning, libfdt has used an incorrect definition of the format for a property, putting the name offset before length, rather than the other way around as described in booting-without-of.txt. This corrects the error, making libfdt actually produce and use trees which are compatible with the kernel and dtc. Signed-of-by: David Gibson <david@gibson.dropbear.id.au>
18 years ago
FDTLONG(len) ; \
FDTLONG(tree##_##name - tree##_strings) ;
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
#define PROP_INT(tree, name, val) \
PROPHDR(tree, name, 4) \
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
/* For ease of testing the property values go in native-endian */ \
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
.long val
#define PROP_STR(tree, name, str) \
PROPHDR(tree, name, 55f - 54f) \
54: \
.string str ; \
55: \
.balign 4
#define BEGIN_NODE(name) \
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
FDTLONG(FDT_BEGIN_NODE) ; \
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
.string name ; \
.balign 4
#define END_NODE \
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
FDTLONG(FDT_END_NODE) ;
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
#define STRING(tree, name, str) \
tree##_##name: \
.string str
.data
TREE_HDR(test_tree1)
test_tree1_rsvmap:
RSVMAP_ENTRY(0, 0)
test_tree1_struct:
BEGIN_NODE("")
PROP_INT(test_tree1, prop_int, TEST_VALUE_1)
PROP_STR(test_tree1, prop_str, TEST_STRING_1)
BEGIN_NODE("subnode1")
PROP_INT(test_tree1, prop_int, TEST_VALUE_1)
BEGIN_NODE("subsubnode")
PROP_INT(test_tree1, prop_int, TEST_VALUE_1)
END_NODE
END_NODE
BEGIN_NODE("subnode2")
PROP_INT(test_tree1, prop_int, TEST_VALUE_2)
BEGIN_NODE("subsubnode")
PROP_INT(test_tree1, prop_int, TEST_VALUE_2)
END_NODE
END_NODE
END_NODE
libfdt: Fix libfdt for little endian hosts This patch fixes a number of embarrasing oversights which meant libfdt did not work correctly on little endian machines. With this patch the testsuite now passes on x86. Device trees are always created big-endian.
18 years ago
FDTLONG(FDT_END)
libfdt - library for manipulating device trees in flattened format Initial revision, read-only and "in-place" (no memmove() required) write operations only.
18 years ago
test_tree1_strings:
STRING(test_tree1, prop_int, "prop-int")
STRING(test_tree1, prop_str, "prop-str")
test_tree1_end:
libfdt: Fix bounds-checking bug in fdt_get_property() The libfdt functions are supposed to behave tolerably well when practical, even if given a corrupted device tree as input. A silly mistake in fdt_get_property() means we're bounds checking against the size of a pointer instead of the size of a property header, meaning we can get bogus behaviour in a corrupted device tree where the structure block ends in what's supposed to be the middle of a property. This patch corrects the problem (fdt_get_property() will now return BADSTRUCTURE in this case), and also adds a testcase to catch the bug.
18 years ago
TREE_HDR(truncated_property)
truncated_property_rsvmap:
RSVMAP_ENTRY(0, 0)
truncated_property_struct:
BEGIN_NODE("")
PROPHDR(truncated_property, prop_truncated, 4)
/* Oops, no actual property data here */
truncated_property_strings:
STRING(truncated_property, prop_truncated, "truncated")
truncated_property_end: