| Message ID | f71669e1847b03f1aa51305128fa1fa26bba1f91.1666705333.git.baskov@ispras.ru (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | x86_64: Improvements at compressed kernel stage | expand |
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S index 112b2375d021..6be90f1a1198 100644 --- a/arch/x86/boot/compressed/vmlinux.lds.S +++ b/arch/x86/boot/compressed/vmlinux.lds.S @@ -27,21 +27,27 @@ SECTIONS HEAD_TEXT _ehead = . ; } + . = ALIGN(PAGE_SIZE); .rodata..compressed : { + _compressed = .; *(.rodata..compressed) + _ecompressed = .; } + . = ALIGN(PAGE_SIZE); .text : { _text = .; /* Text */ *(.text) *(.text.*) _etext = . ; } + . = ALIGN(PAGE_SIZE); .rodata : { _rodata = . ; *(.rodata) /* read-only data */ *(.rodata.*) _erodata = . ; } + . = ALIGN(PAGE_SIZE); .data : { _data = . ; *(.data)
To protect sections on page table level each section needs to be aligned on page size (4KB). Set sections alignment in linker script. Add _compressed/_ecompressed symbols to access '.rodata..compressed' section content in the same way other sections are accessed. This is useful when applying memory attributes of the section. Signed-off-by: Evgeniy Baskov <baskov@ispras.ru> --- arch/x86/boot/compressed/vmlinux.lds.S | 6 ++++++ 1 file changed, 6 insertions(+)