diff mbox series

[v4,03/17] vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG

Message ID 20200629061840.4065483-4-keescook@chromium.org (mailing list archive)
State New, archived
Headers show
Series Warn on orphan section placement | expand

Commit Message

Kees Cook June 29, 2020, 6:18 a.m. UTC
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>
---
 arch/alpha/kernel/vmlinux.lds.S           | 1 +
 arch/arc/kernel/vmlinux.lds.S             | 1 +
 arch/arm/kernel/vmlinux-xip.lds.S         | 1 +
 arch/arm/kernel/vmlinux.lds.S             | 1 +
 arch/arm64/kernel/vmlinux.lds.S           | 1 +
 arch/csky/kernel/vmlinux.lds.S            | 1 +
 arch/hexagon/kernel/vmlinux.lds.S         | 1 +
 arch/ia64/kernel/vmlinux.lds.S            | 1 +
 arch/mips/kernel/vmlinux.lds.S            | 1 +
 arch/nds32/kernel/vmlinux.lds.S           | 1 +
 arch/nios2/kernel/vmlinux.lds.S           | 1 +
 arch/openrisc/kernel/vmlinux.lds.S        | 1 +
 arch/parisc/boot/compressed/vmlinux.lds.S | 1 +
 arch/parisc/kernel/vmlinux.lds.S          | 1 +
 arch/powerpc/kernel/vmlinux.lds.S         | 2 +-
 arch/riscv/kernel/vmlinux.lds.S           | 1 +
 arch/s390/kernel/vmlinux.lds.S            | 1 +
 arch/sh/kernel/vmlinux.lds.S              | 1 +
 arch/sparc/kernel/vmlinux.lds.S           | 1 +
 arch/um/kernel/dyn.lds.S                  | 2 +-
 arch/um/kernel/uml.lds.S                  | 2 +-
 arch/unicore32/kernel/vmlinux.lds.S       | 1 +
 arch/x86/boot/compressed/vmlinux.lds.S    | 2 ++
 arch/x86/kernel/vmlinux.lds.S             | 1 +
 include/asm-generic/vmlinux.lds.h         | 8 ++++++--
 25 files changed, 31 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S
index bc6f727278fd..5b78d640725d 100644
--- a/arch/alpha/kernel/vmlinux.lds.S
+++ b/arch/alpha/kernel/vmlinux.lds.S
@@ -72,6 +72,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/arc/kernel/vmlinux.lds.S b/arch/arc/kernel/vmlinux.lds.S
index 54139a6f469b..33ce59d91461 100644
--- a/arch/arc/kernel/vmlinux.lds.S
+++ b/arch/arc/kernel/vmlinux.lds.S
@@ -122,6 +122,7 @@  SECTIONS
 	_end = . ;
 
 	STABS_DEBUG
+	ELF_DETAILS
 	DISCARDS
 
 	.arcextmap 0 : {
diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S
index 6d2be994ae58..3d4e88f08196 100644
--- a/arch/arm/kernel/vmlinux-xip.lds.S
+++ b/arch/arm/kernel/vmlinux-xip.lds.S
@@ -152,6 +152,7 @@  SECTIONS
 	_end = .;
 
 	STABS_DEBUG
+	ELF_DETAILS
 }
 
 /*
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 7f24bc08403e..5592f14b7e35 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -151,6 +151,7 @@  SECTIONS
 	_end = .;
 
 	STABS_DEBUG
+	ELF_DETAILS
 }
 
 #ifdef CONFIG_STRICT_KERNEL_RWX
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 6827da7f3aa5..55ae731b6368 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -245,6 +245,7 @@  SECTIONS
 	_end = .;
 
 	STABS_DEBUG
+	ELF_DETAILS
 
 	HEAD_SYMBOLS
 }
diff --git a/arch/csky/kernel/vmlinux.lds.S b/arch/csky/kernel/vmlinux.lds.S
index f05b413df328..f03033e17c29 100644
--- a/arch/csky/kernel/vmlinux.lds.S
+++ b/arch/csky/kernel/vmlinux.lds.S
@@ -109,6 +109,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/hexagon/kernel/vmlinux.lds.S b/arch/hexagon/kernel/vmlinux.lds.S
index 0ca2471ddb9f..35b18e55eae8 100644
--- a/arch/hexagon/kernel/vmlinux.lds.S
+++ b/arch/hexagon/kernel/vmlinux.lds.S
@@ -67,5 +67,6 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 }
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index d259690eb91a..9b265783be6a 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -218,6 +218,7 @@  SECTIONS {
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/* Default discards */
 	DISCARDS
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index f185a85a27c1..5e97e9d02f98 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -202,6 +202,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/* These must appear regardless of  .  */
 	.gptab.sdata : {
diff --git a/arch/nds32/kernel/vmlinux.lds.S b/arch/nds32/kernel/vmlinux.lds.S
index 7a6c1cefe3fe..6a91b965fb1e 100644
--- a/arch/nds32/kernel/vmlinux.lds.S
+++ b/arch/nds32/kernel/vmlinux.lds.S
@@ -64,6 +64,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/nios2/kernel/vmlinux.lds.S b/arch/nios2/kernel/vmlinux.lds.S
index c55a7cfa1075..126e114744cb 100644
--- a/arch/nios2/kernel/vmlinux.lds.S
+++ b/arch/nios2/kernel/vmlinux.lds.S
@@ -58,6 +58,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/openrisc/kernel/vmlinux.lds.S b/arch/openrisc/kernel/vmlinux.lds.S
index 60449fd7f16f..d287dbb84d0f 100644
--- a/arch/openrisc/kernel/vmlinux.lds.S
+++ b/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
diff --git a/arch/parisc/boot/compressed/vmlinux.lds.S b/arch/parisc/boot/compressed/vmlinux.lds.S
index 2ac3a643f2eb..ab7b43990857 100644
--- a/arch/parisc/boot/compressed/vmlinux.lds.S
+++ b/arch/parisc/boot/compressed/vmlinux.lds.S
@@ -84,6 +84,7 @@  SECTIONS
 	}
 
 	STABS_DEBUG
+	ELF_DETAILS
 	.note 0 : { *(.note) }
 
 	/* Sections to be discarded */
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 53e29d88f99c..2769eb991f58 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -164,6 +164,7 @@  SECTIONS
 	_end = . ;
 
 	STABS_DEBUG
+	ELF_DETAILS
 	.note 0 : { *(.note) }
 
 	/* Sections to be discarded */
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 326e113d2e45..e0548b4950de 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -360,8 +360,8 @@  SECTIONS
 	PROVIDE32 (end = .);
 
 	STABS_DEBUG
-
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 	/DISCARD/ : {
diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S
index e6f8016b366a..00a325289a26 100644
--- a/arch/riscv/kernel/vmlinux.lds.S
+++ b/arch/riscv/kernel/vmlinux.lds.S
@@ -97,6 +97,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 37695499717d..177ccfbda40a 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -181,6 +181,7 @@  SECTIONS
 	/* Debugging sections.	*/
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	/* Sections to be discarded */
 	DISCARDS
diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S
index bde7a6c01aaf..3161b9ccd2a5 100644
--- a/arch/sh/kernel/vmlinux.lds.S
+++ b/arch/sh/kernel/vmlinux.lds.S
@@ -76,6 +76,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index f99e99e58075..d55ae65a07ad 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -187,6 +187,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index f5001481010c..dacbfabf66d8 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -164,8 +164,8 @@  SECTIONS
   PROVIDE (end = .);
 
   STABS_DEBUG
-
   DWARF_DEBUG
+  ELF_DETAILS
 
   DISCARDS
 }
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 3b6dab3d4501..45d957d7004c 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -108,8 +108,8 @@  SECTIONS
   PROVIDE (end = .);
 
   STABS_DEBUG
-
   DWARF_DEBUG
+  ELF_DETAILS
 
   DISCARDS
 }
diff --git a/arch/unicore32/kernel/vmlinux.lds.S b/arch/unicore32/kernel/vmlinux.lds.S
index 6fb320b337ef..22eb642c7280 100644
--- a/arch/unicore32/kernel/vmlinux.lds.S
+++ b/arch/unicore32/kernel/vmlinux.lds.S
@@ -54,6 +54,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS		/* Exit code and data */
 }
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
index 8f1025d1f681..d88612e3091f 100644
--- a/arch/x86/boot/compressed/vmlinux.lds.S
+++ b/arch/x86/boot/compressed/vmlinux.lds.S
@@ -75,5 +75,7 @@  SECTIONS
 	. = ALIGN(PAGE_SIZE);	/* keep ZO size page aligned */
 	_end = .;
 
+	ELF_DETAILS
+
 	DISCARDS
 }
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 3bfc8dd8a43d..504d16968ed8 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -410,6 +410,7 @@  SECTIONS
 
 	STABS_DEBUG
 	DWARF_DEBUG
+	ELF_DETAILS
 
 	DISCARDS
 }
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index e53a2d4f47f6..c5d10bc53996 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -34,6 +34,7 @@ 
  *
  *	STABS_DEBUG
  *	DWARF_DEBUG
+ *	ELF_DETAILS
  *
  *	DISCARDS		// must be the last
  * }
@@ -784,14 +785,17 @@ 
 		.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