summaryrefslogtreecommitdiff
path: root/include/asm-generic
diff options
context:
space:
mode:
authorMichael Ellerman <mpe@ellerman.id.au>2022-10-31 17:37:21 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2022-10-31 17:37:21 +1100
commitf98b4d13717a58b15c00880d2ccd24972316b430 (patch)
treec3b50090ee3ef4b15b7874ae237d76710108674c /include/asm-generic
parent65722736c3baf29e02e964a09e85c9ef71c48e8d (diff)
parent247f34f7b80357943234f93f247a1ae6b6c3a740 (diff)
downloadlwn-f98b4d13717a58b15c00880d2ccd24972316b430.tar.gz
lwn-f98b4d13717a58b15c00880d2ccd24972316b430.zip
Merge tag 'v6.1-rc2' into fixes
Merge rc2 into our fixes branch, which was based on rc1 but wasn't merged until rc3, so that for the remainder of the release our fixes branch will be based on rc2 for the purposes of resolving conflicts with other trees (if necessary).
Diffstat (limited to 'include/asm-generic')
-rw-r--r--include/asm-generic/vmlinux.lds.h18
1 files changed, 12 insertions, 6 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index c15de165ec8f..d06ada2341cb 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -162,6 +162,16 @@
#define PATCHABLE_DISCARDS *(__patchable_function_entries)
#endif
+#ifndef CONFIG_ARCH_SUPPORTS_CFI_CLANG
+/*
+ * Simply points to ftrace_stub, but with the proper protocol.
+ * Defined by the linker script in linux/vmlinux.lds.h
+ */
+#define FTRACE_STUB_HACK ftrace_stub_graph = ftrace_stub;
+#else
+#define FTRACE_STUB_HACK
+#endif
+
#ifdef CONFIG_FTRACE_MCOUNT_RECORD
/*
* The ftrace call sites are logged to a section whose name depends on the
@@ -169,10 +179,6 @@
* FTRACE_CALLSITE_SECTION. We capture all of them here to avoid header
* dependencies for FTRACE_CALLSITE_SECTION's definition.
*
- * Need to also make ftrace_stub_graph point to ftrace_stub
- * so that the same stub location may have different protocols
- * and not mess up with C verifiers.
- *
* ftrace_ops_list_func will be defined as arch_ftrace_ops_list_func
* as some archs will have a different prototype for that function
* but ftrace_ops_list_func() will have a single prototype.
@@ -182,11 +188,11 @@
KEEP(*(__mcount_loc)) \
KEEP_PATCHABLE \
__stop_mcount_loc = .; \
- ftrace_stub_graph = ftrace_stub; \
+ FTRACE_STUB_HACK \
ftrace_ops_list_func = arch_ftrace_ops_list_func;
#else
# ifdef CONFIG_FUNCTION_TRACER
-# define MCOUNT_REC() ftrace_stub_graph = ftrace_stub; \
+# define MCOUNT_REC() FTRACE_STUB_HACK \
ftrace_ops_list_func = arch_ftrace_ops_list_func;
# else
# define MCOUNT_REC()