7f3bf26ea4
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45 lines
1.2 KiB
Diff
45 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Daniel Axtens <dja@axtens.net>
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Date: Thu, 30 Jul 2020 00:13:21 +1000
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Subject: [PATCH] dl: provide a fake grub_dl_set_persistent for the emu target
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Trying to start grub-emu with a module that calls grub_dl_set_persistent
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will crash because grub-emu fakes modules and passes NULL to the module
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init function.
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Provide an empty function for the emu case.
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Fixes: ee7808e2197c (dl: Add support for persistent modules)
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Signed-off-by: Daniel Axtens <dja@axtens.net>
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---
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include/grub/dl.h | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/include/grub/dl.h b/include/grub/dl.h
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index 4fe2b524f73..177bcd67a25 100644
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--- a/include/grub/dl.h
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+++ b/include/grub/dl.h
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@@ -243,11 +243,22 @@ grub_dl_get (const char *name)
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return 0;
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}
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+#ifdef GRUB_MACHINE_EMU
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+/*
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+ * Under grub-emu, modules are faked and NULL is passed to GRUB_MOD_INIT.
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+ * So we fake this out to avoid a NULL deref.
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+ */
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+static inline void
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+grub_dl_set_persistent (grub_dl_t mod __attribute__((unused)))
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+{
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+}
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+#else
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static inline void
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grub_dl_set_persistent (grub_dl_t mod)
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{
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mod->persistent = 1;
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}
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+#endif
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static inline int
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grub_dl_is_persistent (grub_dl_t mod)
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