Hello Simon,
when building U-Boot HEAD with GCC 9.2.1 I get a bunch of build warnings
which I did not see before your recent libfdt update.
scripts/dtc/libfdt/fdt.c: In function ‘fdt_offset_ptr’:
scripts/dtc/libfdt/fdt.c:137:18: warning: comparison of integer
expressions of different signedness: ‘unsigned int’ and ‘int’
[-Wsign-compare]
137 | if ((absoffset < offset)
| ^
scripts/dtc/libfdt/fdt.c:143:23: warning: comparison of integer
expressions of different signedness: ‘unsigned int’ and ‘int’
[-Wsign-compare]
143 | if (((offset + len) < offset)
| ^
scripts/dtc/libfdt/fdt.c: In function ‘fdt_move’:
scripts/dtc/libfdt/fdt.c:307:25: warning: comparison of integer
expressions of different signedness: ‘uint32_t’ {aka ‘unsigned int’} and
‘int’ [-Wsign-compare]
307 | if (fdt_totalsize(fdt) > bufsize)
| ^
scripts/dtc/libfdt/fdt_ro.c: In function ‘fdt_get_string’:
scripts/dtc/libfdt/fdt_ro.c:56:16: warning: comparison of integer
expressions of different signedness: ‘uint32_t’ {aka ‘unsigned int’} and
‘int32_t’ {aka ‘int’} [-Wsign-compare]
56 | if (absoffset >= totalsize)
| ^~
scripts/dtc/libfdt/fdt_ro.c:64:18: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘uint32_t’ {aka ‘unsigned
int’} [-Wsign-compare]
64 | if (stroffset >= fdt_size_dt_strings(fdt))
| ^~
scripts/dtc/libfdt/fdt_ro.c:71:21: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘uint32_t’ {aka ‘unsigned
int’} [-Wsign-compare]
71 | || (stroffset < -fdt_size_dt_strings(fdt)))
| ^
scripts/dtc/libfdt/fdt_ro.c:73:20: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘size_t’ {aka ‘long
unsigned int’} [-Wsign-compare]
73 | if ((-stroffset) < len)
| ^
scripts/dtc/libfdt/fdt_ro.c: In function ‘fdt_mem_rsv’:
scripts/dtc/libfdt/fdt_ro.c:164:17: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘uint32_t’ {aka ‘unsigned
int’} [-Wsign-compare]
164 | if (absoffset < fdt_off_mem_rsvmap(fdt))
| ^
scripts/dtc/libfdt/fdt_ro.c:166:17: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘long unsigned int’
[-Wsign-compare]
166 | if (absoffset > fdt_totalsize(fdt) -
| ^
scripts/dtc/libfdt/fdt_ro.c: In function ‘fdt_node_offset_by_phandle’:
scripts/dtc/libfdt/fdt_ro.c:682:33: warning: comparison of integer
expressions of different signedness: ‘uint32_t’ {aka ‘unsigned int’} and
‘int’ [-Wsign-compare]
682 | if ((phandle == 0) || (phandle == -1))
| ^~
scripts/dtc/libfdt/fdt_wip.c: In function
‘fdt_setprop_inplace_namelen_partial’:
scripts/dtc/libfdt/fdt_wip.c:26:14: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘uint32_t’ {aka ‘unsigned
int’} [-Wsign-compare]
26 | if (proplen < (len + idx))
| ^
scripts/dtc/libfdt/fdt_sw.c: In function ‘fdt_grab_space_’:
scripts/dtc/libfdt/fdt_sw.c:105:20: warning: comparison of integer
expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’}
and ‘int’ [-Wsign-compare]
105 | if ((offset + len < offset) || (offset + len > spaceleft))
| ^
scripts/dtc/libfdt/fdt_sw.c:105:47: warning: comparison of integer
expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’}
and ‘int’ [-Wsign-compare]
105 | if ((offset + len < offset) || (offset + len > spaceleft))
| ^
scripts/dtc/libfdt/fdt_sw.c: In function ‘fdt_create_with_flags’:
scripts/dtc/libfdt/fdt_sw.c:118:14: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘long unsigned int’
[-Wsign-compare]
118 | if (bufsize < hdrsize)
| ^
scripts/dtc/libfdt/fdt_sw.c: In function ‘fdt_resize’:
scripts/dtc/libfdt/fdt_sw.c:164:28: warning: comparison of integer
expressions of different signedness: ‘size_t’ {aka ‘long unsigned int’}
and ‘int’ [-Wsign-compare]
164 | if ((headsize + tailsize) > bufsize)
| ^
scripts/dtc/libfdt/fdt_sw.c: In function ‘fdt_add_string_’:
scripts/dtc/libfdt/fdt_sw.c:258:34: warning: comparison of integer
expressions of different signedness: ‘uint32_t’ {aka ‘unsigned int’} and
‘int’ [-Wsign-compare]
258 | if (fdt_totalsize(fdt) + offset < struct_top)
| ^
scripts/dtc/libfdt/fdt_strerror.c: In function ‘fdt_strerror’:
scripts/dtc/libfdt/fdt_strerror.c:51:18: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘long unsigned int’
[-Wsign-compare]
51 | else if (errval > -FDT_ERRTABSIZE) {
| ^
scripts/dtc/libfdt/fdt_overlay.c: In function
‘overlay_update_local_node_references’:
scripts/dtc/libfdt/fdt_overlay.c:253:17: warning: comparison of integer
expressions of different signedness: ‘int’ and ‘long unsigned int’
[-Wsign-compare]
253 | for (i = 0; i < (fixup_len / sizeof(uint32_t)); i++) {
| ^
Best regards
Heinrich
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