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authorJakub Kicinski <[email protected]>2025-02-20 18:36:34 +0000
committerJakub Kicinski <[email protected]>2025-02-20 18:37:30 +0000
commit5d6ba5ab8582aa35c1ee98e47af28e6f6772596c (patch)
treea4a3a2d311773c19909c9928273e0bcae01a39ce /tools/objtool/check.c
parentMerge tag 'linux-can-next-for-6.15-20250219' of git://git.kernel.org/pub/scm/... (diff)
parentMerge tag 'net-6.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/net... (diff)
downloadkernel-5d6ba5ab8582aa35c1ee98e47af28e6f6772596c.tar.gz
kernel-5d6ba5ab8582aa35c1ee98e47af28e6f6772596c.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.14-rc4). No conflicts or adjacent changes. Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'tools/objtool/check.c')
-rw-r--r--tools/objtool/check.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 753dbc4f8198..be18a0489303 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -227,6 +227,7 @@ static bool is_rust_noreturn(const struct symbol *func)
str_ends_with(func->name, "_4core9panicking18panic_bounds_check") ||
str_ends_with(func->name, "_4core9panicking19assert_failed_inner") ||
str_ends_with(func->name, "_4core9panicking36panic_misaligned_pointer_dereference") ||
+ strstr(func->name, "_4core9panicking13assert_failed") ||
strstr(func->name, "_4core9panicking11panic_const24panic_const_") ||
(strstr(func->name, "_4core5slice5index24slice_") &&
str_ends_with(func->name, "_fail"));
@@ -1975,6 +1976,14 @@ static int add_jump_table(struct objtool_file *file, struct instruction *insn,
reloc_addend(reloc) == pfunc->offset)
break;
+ /*
+ * Clang sometimes leaves dangling unused jump table entries
+ * which point to the end of the function. Ignore them.
+ */
+ if (reloc->sym->sec == pfunc->sec &&
+ reloc_addend(reloc) == pfunc->offset + pfunc->len)
+ goto next;
+
dest_insn = find_insn(file, reloc->sym->sec, reloc_addend(reloc));
if (!dest_insn)
break;
@@ -1992,6 +2001,7 @@ static int add_jump_table(struct objtool_file *file, struct instruction *insn,
alt->insn = dest_insn;
alt->next = insn->alts;
insn->alts = alt;
+next:
prev_offset = reloc_offset(reloc);
}
@@ -2264,7 +2274,7 @@ static int read_annotate(struct objtool_file *file,
if (sec->sh.sh_entsize != 8) {
static bool warned = false;
- if (!warned) {
+ if (!warned && opts.verbose) {
WARN("%s: dodgy linker, sh_entsize != 8", sec->name);
warned = true;
}