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bcf8aeff3c
Failing Hydra build: https://hydra.nixos.org/build/155189331 Applied a smaller patch from Fedora's fork[1] as it also applies on older versions. That said, these versions seem unmaintained anyways, so we should probably drop them entirely. [1] https://pagure.io/fedora-ocaml/c/dfb5e954a04f59b0456cc4c0ddf3acaf22e0ff07?branch=fedora-35-4.12.0
38 lines
1012 B
Diff
38 lines
1012 B
Diff
From dfb5e954a04f59b0456cc4c0ddf3acaf22e0ff07 Mon Sep 17 00:00:00 2001
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From: Richard W.M. Jones <rjones@redhat.com>
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Date: Feb 28 2021 20:45:47 +0000
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Subject: Workaround for glibc non-constant SIGSTKSZ
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https://github.com/ocaml/ocaml/issues/10250
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Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
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---
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diff --git a/runtime/signals_nat.c b/runtime/signals_nat.c
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index 8b64ab4..7f0a975 100644
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--- a/runtime/signals_nat.c
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+++ b/runtime/signals_nat.c
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@@ -181,7 +181,19 @@ DECLARE_SIGNAL_HANDLER(trap_handler)
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#error "CONTEXT_SP is required if HAS_STACK_OVERFLOW_DETECTION is defined"
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#endif
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+#ifndef __GLIBC__
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static char sig_alt_stack[SIGSTKSZ];
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+#else
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+/* glibc 2.34 has non-constant SIGSTKSZ */
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+static char *sig_alt_stack;
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+
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+static void allocate_sig_alt_stack(void) __attribute__((constructor));
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+static void
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+allocate_sig_alt_stack(void)
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+{
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+ sig_alt_stack = malloc(SIGSTKSZ);
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+}
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+#endif
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/* Code compiled with ocamlopt never accesses more than
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EXTRA_STACK bytes below the stack pointer. */
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