diff options
Diffstat (limited to 'arch/s390/boot/vmlinux.lds.S')
| -rw-r--r-- | arch/s390/boot/vmlinux.lds.S | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/s390/boot/vmlinux.lds.S b/arch/s390/boot/vmlinux.lds.S index 389df0e0d9..3d7ea585ab 100644 --- a/arch/s390/boot/vmlinux.lds.S +++ b/arch/s390/boot/vmlinux.lds.S @@ -31,6 +31,7 @@ SECTIONS _text = .; /* Text */ *(.text) *(.text.*) + INIT_TEXT _etext = . ; } .rodata : { @@ -39,6 +40,9 @@ SECTIONS *(.rodata.*) _erodata = . ; } + .got : { + *(.got) + } NOTES .data : { _data = . ; @@ -106,6 +110,24 @@ SECTIONS _compressed_end = .; } +#ifndef CONFIG_PIE_BUILD + /* + * When the kernel is built with CONFIG_KERNEL_UNCOMPRESSED, the entire + * uncompressed vmlinux.bin is positioned in the bzImage decompressor + * image at the default kernel LMA of 0x100000, enabling it to be + * executed in-place. However, the size of .vmlinux.relocs could be + * large enough to cause an overlap with the uncompressed kernel at the + * address 0x100000. To address this issue, .vmlinux.relocs is + * positioned after the .rodata.compressed. + */ + . = ALIGN(4); + .vmlinux.relocs : { + __vmlinux_relocs_64_start = .; + *(.vmlinux.relocs_64) + __vmlinux_relocs_64_end = .; + } +#endif + #define SB_TRAILER_SIZE 32 /* Trailer needed for Secure Boot */ . += SB_TRAILER_SIZE; /* make sure .sb.trailer does not overwrite the previous section */ @@ -118,8 +140,34 @@ SECTIONS } _end = .; + DWARF_DEBUG + ELF_DETAILS + + /* + * Make sure that the .got.plt is either completely empty or it + * contains only the three reserved double words. + */ + .got.plt : { + *(.got.plt) + } + ASSERT(SIZEOF(.got.plt) == 0 || SIZEOF(.got.plt) == 0x18, "Unexpected GOT/PLT entries detected!") + + /* + * Sections that should stay zero sized, which is safer to + * explicitly check instead of blindly discarding. + */ + .plt : { + *(.plt) *(.plt.*) *(.iplt) *(.igot .igot.plt) + } + ASSERT(SIZEOF(.plt) == 0, "Unexpected run-time procedure linkages detected!") + .rela.dyn : { + *(.rela.*) *(.rela_*) + } + ASSERT(SIZEOF(.rela.dyn) == 0, "Unexpected run-time relocations (.rela) detected!") + /* Sections to be discarded */ /DISCARD/ : { + COMMON_DISCARDS *(.eh_frame) *(__ex_table) *(*__ksymtab*) |