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authorLinus Torvalds <torvalds@linux-foundation.org>2017-03-07 09:37:28 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-03-07 09:37:28 -0800
commitf26db9649af36b8eb76850108113d4056f494537 (patch)
treec465767c8112cf5ebc7eb30ba9f19a770906560c /scripts/module-common.lds
parentc1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 (diff)
parent65a50c656276b0846bea09dd011c0a3d35b77f3e (diff)
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Merge tag 'trace-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt: "There was some breakage with the changes for jump labels in the 4.11 merge window: - powerpc broke as jump labels uses the two LSB bits as flags in initialization. A check was added to make sure that all jump label entries were 4 bytes aligned, but powerpc didn't work that way for modules. Adding an alignment in the module linker script appeared to be the best solution. - Jump labels also added an anonymous union to access those LSB bits as a normal long. But because this structure had static initialization, it broke older compilers that could not statically initialize anonymous unions without brackets. - The command line parameter for setting function graph filter broke the "EMPTY_HASH" descriptor by modifying it instead of creating a new hash to hold the entries. - The command line parameter ftrace_graph_max_depth was added to allow its setting at boot time. It uses existing code and only the command line hook was added. This is not really a fix, but as it uses existing code without affecting anything else, I added it to this release. It was ready before the merge window closed, but I wanted to let it sit in linux-next for a couple of days first" * tag 'trace-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace/graph: Add ftrace_graph_max_depth kernel parameter tracing: Add #undef to fix compile error jump_label: Add comment about initialization order for anonymous unions jump_label: Fix anonymous union initialization module: set __jump_table alignment to 8 ftrace/graph: Do not modify the EMPTY_HASH for the function_graph filter tracing: Fix code comment for ftrace_ops_get_func()
Diffstat (limited to 'scripts/module-common.lds')
-rw-r--r--scripts/module-common.lds2
1 files changed, 2 insertions, 0 deletions
diff --git a/scripts/module-common.lds b/scripts/module-common.lds
index cf7e52e4781b..9b6e246a45d0 100644
--- a/scripts/module-common.lds
+++ b/scripts/module-common.lds
@@ -22,4 +22,6 @@ SECTIONS {
. = ALIGN(8);
.init_array 0 : { *(SORT(.init_array.*)) *(.init_array) }
+
+ __jump_table 0 : ALIGN(8) { KEEP(*(__jump_table)) }
}