[PATCH 02/10] linker: add kflagstab section to vmlinux and modules

[Siddharth Nayyar]

This section will contain read-only kernel symbol flag values in the
form of a 8-bit bitset.

Signed-off-by: Siddharth Nayyar <sidnay...@google.com>
---
 include/asm-generic/vmlinux.lds.h | 7 +++++++
 scripts/module.lds.S              | 1 +
 2 files changed, 8 insertions(+)

diff --git a/include/asm-generic/vmlinux.lds.h 
b/include/asm-generic/vmlinux.lds.h
index ae2d2359b79e..310e2de56211 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -518,6 +518,13 @@ defined(CONFIG_AUTOFDO_CLANG) || 
defined(CONFIG_PROPELLER_CLANG)
                __stop___kcrctab_gpl = .;                               \
        }                                                               \
                                                                        \
+       /* Kernel symbol flags table */                                 \
+       __kflagstab       : AT(ADDR(__kflagstab) - LOAD_OFFSET) {       \
+               __start___kflagstab = .;                                \
+               KEEP(*(SORT(___kflagstab+*)))                           \
+               __stop___kflagstab = .;                                 \
+       }                                                               \
+                                                                       \
        /* Kernel symbol table: strings */                              \
         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) {        
\
                *(__ksymtab_strings)                                    \
diff --git a/scripts/module.lds.S b/scripts/module.lds.S
index ee79c41059f3..9a8a3b6d1569 100644
--- a/scripts/module.lds.S
+++ b/scripts/module.lds.S
@@ -23,6 +23,7 @@ SECTIONS {
        __ksymtab_gpl           0 : ALIGN(8) { *(SORT(___ksymtab_gpl+*)) }
        __kcrctab               0 : ALIGN(4) { *(SORT(___kcrctab+*)) }
        __kcrctab_gpl           0 : ALIGN(4) { *(SORT(___kcrctab_gpl+*)) }
+       __kflagstab             0 : ALIGN(1) { *(SORT(___kflagstab+*)) }
 
        .ctors                  0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) }
        .init_array             0 : ALIGN(8) { *(SORT(.init_array.*)) 
*(.init_array) }
-- 
2.51.0.338.gd7d06c2dae-goog