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41 lines
1.1 KiB
41 lines
1.1 KiB
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Guinevere Larsen <blarsen@redhat.com>
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Date: Mon, 30 Oct 2023 12:48:01 +0100
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Subject: libiberty-infinite-recursion-fix-3-of-3.patch
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fix backport error in patch 1 of this series.
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diff --git a/libiberty/rust-demangle.c b/libiberty/rust-demangle.c
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--- a/libiberty/rust-demangle.c
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+++ b/libiberty/rust-demangle.c
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@@ -1082,6 +1082,18 @@ demangle_path_maybe_open_generics (struct rust_demangler *rdm)
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if (rdm->errored)
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return open;
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+ if (rdm->recursion != RUST_NO_RECURSION_LIMIT)
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+ {
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+ ++ rdm ->recursion;
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+ if (rdm->recursion > RUST_MAX_RECURSION_COUNT)
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+ {
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+ /* FIXME: there ought to be a way to report
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+ that the recorsion limit has been reached. */
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+ rdm->errored = 1;
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+ goto end_of_func;
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+ }
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+ }
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+
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if (eat (rdm, 'B'))
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{
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backref = parse_integer_62 (rdm);
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@@ -1107,6 +1119,10 @@ demangle_path_maybe_open_generics (struct rust_demangler *rdm)
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}
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else
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demangle_path (rdm, 0);
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+ end_of_func:
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+ if (rdm->recursion != RUST_NO_RECURSION_LIMIT)
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+ -- rdm->recursion;
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+
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return open;
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}
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