grub2/0040-Make-grub_fatal-also-backtrace.patch
Adam Williamson 5e72956199 Revert "Use my sort patch instead", fix BLS ostree detection
This reverts commit 93004a8494,
because it broke Rawhide. It also tries to fixes BLS ostree
detection to work in chroots (e.g. during installation) by also
checking for /ostree/repo.
2022-03-22 18:32:24 -07:00

172 lines
4.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Peter Jones <pjones@redhat.com>
Date: Wed, 27 Jan 2016 09:22:42 -0500
Subject: [PATCH] Make grub_fatal() also backtrace.
---
grub-core/Makefile.core.def | 3 ++
grub-core/kern/misc.c | 8 +++++-
grub-core/lib/arm64/backtrace.c | 62 +++++++++++++++++++++++++++++++++++++++++
grub-core/lib/backtrace.c | 2 ++
grub-core/lib/i386/backtrace.c | 14 +++++++++-
5 files changed, 87 insertions(+), 2 deletions(-)
create mode 100644 grub-core/lib/arm64/backtrace.c
diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
index c15e91943b9..058c88ac3af 100644
--- a/grub-core/Makefile.core.def
+++ b/grub-core/Makefile.core.def
@@ -188,6 +188,9 @@ kernel = {
softdiv = lib/division.c;
+ x86 = lib/i386/backtrace.c;
+ x86 = lib/backtrace.c;
+
i386 = kern/i386/dl.c;
i386_xen = kern/i386/dl.c;
i386_xen_pvh = kern/i386/dl.c;
diff --git a/grub-core/kern/misc.c b/grub-core/kern/misc.c
index 63b586d09cb..a3e215155bd 100644
--- a/grub-core/kern/misc.c
+++ b/grub-core/kern/misc.c
@@ -24,6 +24,7 @@
#include <grub/term.h>
#include <grub/env.h>
#include <grub/i18n.h>
+#include <grub/backtrace.h>
union printf_arg
{
@@ -1199,8 +1200,13 @@ grub_printf_fmt_check (const char *fmt, const char *fmt_expected)
static void __attribute__ ((noreturn))
grub_abort (void)
{
+#ifndef GRUB_UTIL
+#if defined(__i386__) || defined(__x86_64__)
+ grub_backtrace();
+#endif
+#endif
grub_printf ("\nAborted.");
-
+
#ifndef GRUB_UTIL
if (grub_term_inputs)
#endif
diff --git a/grub-core/lib/arm64/backtrace.c b/grub-core/lib/arm64/backtrace.c
new file mode 100644
index 00000000000..1079b5380e1
--- /dev/null
+++ b/grub-core/lib/arm64/backtrace.c
@@ -0,0 +1,62 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2009 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/mm.h>
+#include <grub/term.h>
+#include <grub/backtrace.h>
+
+#define MAX_STACK_FRAME 102400
+
+void
+grub_backtrace_pointer (int frame)
+{
+ while (1)
+ {
+ void *lp = __builtin_return_address (frame);
+ if (!lp)
+ break;
+
+ lp = __builtin_extract_return_addr (lp);
+
+ grub_printf ("%p: ", lp);
+ grub_backtrace_print_address (lp);
+ grub_printf (" (");
+ for (i = 0; i < 2; i++)
+ grub_printf ("%p,", ((void **)ptr) [i + 2]);
+ grub_printf ("%p)\n", ((void **)ptr) [i + 2]);
+ nptr = *(void **)ptr;
+ if (nptr < ptr || (void **) nptr - (void **) ptr > MAX_STACK_FRAME
+ || nptr == ptr)
+ {
+ grub_printf ("Invalid stack frame at %p (%p)\n", ptr, nptr);
+ break;
+ }
+ ptr = nptr;
+ }
+}
+
+void
+grub_backtrace (void)
+{
+ grub_backtrace_pointer (1);
+}
+
diff --git a/grub-core/lib/backtrace.c b/grub-core/lib/backtrace.c
index 825a8800e25..c0ad6ab8be1 100644
--- a/grub-core/lib/backtrace.c
+++ b/grub-core/lib/backtrace.c
@@ -29,6 +29,7 @@ GRUB_MOD_LICENSE ("GPLv3+");
void
grub_backtrace_print_address (void *addr)
{
+#ifndef GRUB_UTIL
grub_dl_t mod;
FOR_DL_MODULES (mod)
@@ -44,6 +45,7 @@ grub_backtrace_print_address (void *addr)
}
}
+#endif
grub_printf ("%p", addr);
}
diff --git a/grub-core/lib/i386/backtrace.c b/grub-core/lib/i386/backtrace.c
index c3e03c7275c..c67273db3ae 100644
--- a/grub-core/lib/i386/backtrace.c
+++ b/grub-core/lib/i386/backtrace.c
@@ -15,11 +15,23 @@
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
+#ifdef GRUB_UTIL
+#define REALLY_GRUB_UTIL GRUB_UTIL
+#undef GRUB_UTIL
+#endif
+
+#include <grub/symbol.h>
+#include <grub/dl.h>
+
+#ifdef REALLY_GRUB_UTIL
+#define GRUB_UTIL REALLY_GRUB_UTIL
+#undef REALLY_GRUB_UTIL
+#endif
#include <grub/misc.h>
#include <grub/command.h>
#include <grub/err.h>
-#include <grub/dl.h>
#include <grub/mm.h>
#include <grub/term.h>
#include <grub/backtrace.h>