vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG

The .comment section doesn't belong in STABS_DEBUG. Split it out into a
new macro named ELF_DETAILS. This will gain other non-debug sections
that need to be accounted for when linking with --orphan-handling=warn.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: linux-arch@vger.kernel.org
Link: https://lore.kernel.org/r/20200821194310.3089815-5-keescook@chromium.org

arch/alpha/kernel/vmlinux.lds.S

@@ -72,6 +72,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/arc/kernel/vmlinux.lds.S

@@ -122,6 +122,7 @@ SECTIONS
 	_end = . ;
 
 	STABS_DEBUG
+	ELF_DETAILS
 	DISCARDS
 
 	.arcextmap 0 : {

arch/arm/kernel/vmlinux-xip.lds.S

@@ -152,6 +152,7 @@ SECTIONS
 	_end = .;
 
 	STABS_DEBUG
+	ELF_DETAILS
 }
 
 /*

arch/arm/kernel/vmlinux.lds.S

@@ -151,6 +151,7 @@ SECTIONS
 	_end = .;
 
 	STABS_DEBUG
+	ELF_DETAILS
 }
 
 #ifdef CONFIG_STRICT_KERNEL_RWX

arch/arm64/kernel/vmlinux.lds.S

@@ -241,6 +241,7 @@ SECTIONS
 	_end = .;
 
 	STABS_DEBUG
+	ELF_DETAILS
 
 	HEAD_SYMBOLS
 }

arch/csky/kernel/vmlinux.lds.S

@@ -109,6 +109,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/hexagon/kernel/vmlinux.lds.S

@@ -67,5 +67,6 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 }

arch/ia64/kernel/vmlinux.lds.S

@@ -218,6 +218,7 @@ SECTIONS {
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/* Default discards */
 	DISCARDS

arch/mips/kernel/vmlinux.lds.S

@@ -202,6 +202,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/* These must appear regardless of  .  */
 	.gptab.sdata : {

arch/nds32/kernel/vmlinux.lds.S

@@ -64,6 +64,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/nios2/kernel/vmlinux.lds.S

@@ -58,6 +58,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/openrisc/kernel/vmlinux.lds.S

@@ -115,6 +115,7 @@ SECTIONS
 	/* Throw in the debugging sections */
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
         /* Sections to be discarded -- must be last */
 	DISCARDS

arch/parisc/boot/compressed/vmlinux.lds.S

@@ -84,6 +84,7 @@ SECTIONS
 	}
 
 	STABS_DEBUG
+	ELF_DETAILS
 	.note 0 : { *(.note) }
 
 	/* Sections to be discarded */

arch/parisc/kernel/vmlinux.lds.S

@@ -164,6 +164,7 @@ SECTIONS
 	_end = . ;
 
 	STABS_DEBUG
+	ELF_DETAILS
 	.note 0 : { *(.note) }
 
 	/* Sections to be discarded */

arch/powerpc/kernel/vmlinux.lds.S

@@ -360,8 +360,8 @@ SECTIONS
 	PROVIDE32 (end = .);
 
 	STABS_DEBUG
-
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 	/DISCARD/ : {

arch/riscv/kernel/vmlinux.lds.S

@@ -97,6 +97,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/s390/kernel/vmlinux.lds.S

@@ -181,6 +181,7 @@ SECTIONS
 	/* Debugging sections.	*/
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/* Sections to be discarded */
 	DISCARDS

arch/sh/kernel/vmlinux.lds.S

@@ -76,6 +76,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/sparc/kernel/vmlinux.lds.S

@@ -187,6 +187,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

arch/um/kernel/dyn.lds.S

@@ -164,8 +164,8 @@ SECTIONS
   PROVIDE (end = .);
 
   STABS_DEBUG
-
   DWARF_DEBUG
+  ELF_DETAILS
 
   DISCARDS
 }

arch/um/kernel/uml.lds.S

@@ -108,8 +108,8 @@ SECTIONS
   PROVIDE (end = .);
 
   STABS_DEBUG
-
   DWARF_DEBUG
+  ELF_DETAILS
 
   DISCARDS
 }

arch/x86/boot/compressed/vmlinux.lds.S

@@ -82,6 +82,8 @@ SECTIONS
 	. = ALIGN(PAGE_SIZE);	/* keep ZO size page aligned */
 	_end = .;
 
+	ELF_DETAILS
+
 	DISCARDS
 }
 

arch/x86/kernel/vmlinux.lds.S

@@ -411,6 +411,7 @@ SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }

include/asm-generic/vmlinux.lds.h

@@ -34,6 +34,7 @@
  *
  *	STABS_DEBUG
  *	DWARF_DEBUG
+ *	ELF_DETAILS
  *
  *	DISCARDS		// must be the last
  * }
@@ -811,14 +812,17 @@
 		.debug_macro	0 : { *(.debug_macro) }			\
 		.debug_addr	0 : { *(.debug_addr) }
 
-		/* Stabs debugging sections.  */
+/* Stabs debugging sections. */
 #define STABS_DEBUG							\
 		.stab 0 : { *(.stab) }					\
 		.stabstr 0 : { *(.stabstr) }				\
 		.stab.excl 0 : { *(.stab.excl) }			\
 		.stab.exclstr 0 : { *(.stab.exclstr) }			\
 		.stab.index 0 : { *(.stab.index) }			\
-		.stab.indexstr 0 : { *(.stab.indexstr) }		\
+		.stab.indexstr 0 : { *(.stab.indexstr) }
+
+/* Required sections not related to debugging. */
+#define ELF_DETAILS							\
 		.comment 0 : { *(.comment) }
 
 #ifdef CONFIG_GENERIC_BUG