| Message ID | 20200731230820.1742553-12-keescook@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Warn on orphan section placement | expand |
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 5423ffe0a987..df2916b25ee0 100644 --- a/arch/arm64/kernel/vmlinux.lds.S +++ b/arch/arm64/kernel/vmlinux.lds.S @@ -242,6 +242,7 @@ 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 29df99b6cc64..3c2ee9a5bf43 100644 --- a/arch/x86/boot/compressed/vmlinux.lds.S +++ b/arch/x86/boot/compressed/vmlinux.lds.S @@ -82,6 +82,8 @@ 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 9a03e5b23135..0cc035cb15f1 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -411,6 +411,7 @@ 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 f236cf0fa779..22c9a68c02ae 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 * } @@ -787,14 +788,17 @@ .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
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(-)