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tools/kdd: work around gcc 8.1 bug
Gcc 8.1 has a bug that causes kdd fail to build. Rewrite the code to work around that bug. https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86827 Signed-off-by: Tim Deegan <tim@xen.org> Signed-off-by: Wei Liu <wei.liu2@citrix.com> Tested-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
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Wei Liu committed
1 parent
e75c9dc85f
commit
48a70499e6
1 file changed
+4
-5
@@ -687,11 +687,10 @@ static void kdd_handle_read_ctrl(kdd_state *s)
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}
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} else {
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/* 32-bit control-register space starts at 0x[2]cc, for 84 bytes */
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uint32_t offset = addr;
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if (offset > 0x200)
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offset -= 0x200;
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offset -= 0xcc;
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if (offset > sizeof ctrl.c32 || offset + len > sizeof ctrl.c32) {
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uint32_t offset = addr - 0xcc;
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if (offset > sizeof ctrl.c32)
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offset -= 0x2cc;
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if (offset > sizeof ctrl.c32 || len > sizeof ctrl.c32 - offset) {
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KDD_LOG(s, "Request outside of known control space\n");
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len = 0;
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} else {
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