46 lines
1.4 KiB
Diff
46 lines
1.4 KiB
Diff
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From 038556f57e3433cbaaa7b087c9798143709caa9c Mon Sep 17 00:00:00 2001
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From: Milian Wolff <mail@milianw.de>
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Date: Thu, 31 May 2018 16:11:30 +0200
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Subject: [PATCH 24/50] Also define NLGA when we build with atomic ops (#80)
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This uncovered the use of NLGA to guard the initializaition
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of the valid mem cache. This code is removed, as it isn't
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working properly for a per-thread cache anyways. What's more,
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it shouldn't be required anyways since static data is guaranteed
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to be initialized to zero anyways.
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Fixes https://github.com/libunwind/libunwind/issues/79
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---
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src/x86_64/Ginit.c | 7 +------
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1 file changed, 1 insertion(+), 6 deletions(-)
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diff --git a/src/x86_64/Ginit.c b/src/x86_64/Ginit.c
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index 669e9ed..6161da6 100644
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--- a/src/x86_64/Ginit.c
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+++ b/src/x86_64/Ginit.c
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@@ -174,8 +174,8 @@ tdep_init_mem_validate (void)
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}
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/* Cache of already validated addresses */
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-#if defined(HAVE___THREAD) && HAVE___THREAD
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#define NLGA 4
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+#if defined(HAVE___THREAD) && HAVE___THREAD
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// thread-local variant
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static __thread unw_word_t last_good_addr[NLGA];
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static __thread int lga_victim;
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@@ -394,11 +394,6 @@ x86_64_local_addr_space_init (void)
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local_addr_space.acc.resume = x86_64_local_resume;
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local_addr_space.acc.get_proc_name = get_static_proc_name;
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unw_flush_cache (&local_addr_space, 0, 0);
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-
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-#if NLGA > 0
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- memset (last_good_addr, 0, sizeof (unw_word_t) * NLGA);
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- lga_victim = 0;
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-#endif
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}
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#endif /* !UNW_REMOTE_ONLY */
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--
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1.8.3.1
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