The quilt patch titled
Subject: scripts/kallysms: always include __start and __stop symbols
has been removed from the -mm tree. Its filename was
scripts-kallysms-always-include-__start-and-__stop-symbols.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Subject: scripts/kallysms: always include __start and __stop symbols
Date: Thu, 21 Mar 2024 09:36:26 -0700
These symbols are used to denote section boundaries: by always including
them we can unify loading sections from modules with loading built-in
sections, which leads to some significant cleanup.
Link: https://lkml.kernel.org/r/20240321163705.3067592-5-surenb@xxxxxxxxxx
Signed-off-by: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Reviewed-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Tested-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Alex Gaynor <alex.gaynor@xxxxxxxxx>
Cc: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Cc: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>
Cc: Benno Lossin <benno.lossin@xxxxxxxxx>
Cc: "Björn Roy Baron" <bjorn3_gh@xxxxxxxxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Dennis Zhou <dennis@xxxxxxxxxx>
Cc: Gary Guo <gary@xxxxxxxxxxx>
Cc: Miguel Ojeda <ojeda@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Wedson Almeida Filho <wedsonaf@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/kallsyms.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- a/scripts/kallsyms.c~scripts-kallysms-always-include-__start-and-__stop-symbols
+++ a/scripts/kallsyms.c
@@ -204,6 +204,11 @@ static int symbol_in_range(const struct
return 0;
}
+static bool string_starts_with(const char *s, const char *prefix)
+{
+ return strncmp(s, prefix, strlen(prefix)) == 0;
+}
+
static int symbol_valid(const struct sym_entry *s)
{
const char *name = sym_name(s);
@@ -211,6 +216,14 @@ static int symbol_valid(const struct sym
/* if --all-symbols is not specified, then symbols outside the text
* and inittext sections are discarded */
if (!all_symbols) {
+ /*
+ * Symbols starting with __start and __stop are used to denote
+ * section boundaries, and should always be included:
+ */
+ if (string_starts_with(name, "__start_") ||
+ string_starts_with(name, "__stop_"))
+ return 1;
+
if (symbol_in_range(s, text_ranges,
ARRAY_SIZE(text_ranges)) == 0)
return 0;
_
Patches currently in -mm which might be from kent.overstreet@xxxxxxxxx are
