1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <asm/asm-offsets.h>
3 #include <asm/thread_info.h>
5 #define PAGE_SIZE _PAGE_SIZE
8 * Put .bss..swapper_pg_dir as the first thing in .bss. This will
9 * ensure that it has .bss alignment (64K).
11 #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
13 /* Cavium Octeon should not have a separate PT_NOTE Program Header. */
14 #ifndef CONFIG_CAVIUM_OCTEON_SOC
18 #define RUNTIME_DISCARD_EXIT
20 #include <asm-generic/vmlinux.lds.h>
27 text PT_LOAD FLAGS(7); /* RWX */
28 #ifndef CONFIG_CAVIUM_OCTEON_SOC
29 note PT_NOTE FLAGS(4); /* R__ */
30 #endif /* CAVIUM_OCTEON_SOC */
34 #ifdef CONFIG_CPU_LITTLE_ENDIAN
37 jiffies = jiffies_64 + 4;
45 #ifdef CONFIG_BOOT_ELF64
46 /* Read-only sections, merged into text segment: */
47 /* . = 0xc000000000000000; */
49 /* This is the value for an Origin kernel, taken from an IRIX kernel. */
50 /* . = 0xc00000000001c000; */
52 /* Set the vaddr for the text segment to a value
53 * >= 0xa800 0000 0001 9000 if no symmon is going to configured
54 * >= 0xa800 0000 0030 0000 otherwise
57 /* . = 0xa800000000300000; */
58 . = 0xffffffff80300000;
60 . = LINKER_LOAD_ADDRESS;
62 _text = .; /* Text and read-only data */
73 *(.got) /* Global offset table */
75 _etext = .; /* End of text section */
79 /* Exception table for data bus errors */
81 __start___dbe_table = .;
83 __stop___dbe_table = .;
86 _sdata = .; /* Start of data section */
91 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
93 INIT_TASK_DATA(THREAD_SIZE)
95 PAGE_ALIGNED_DATA(PAGE_SIZE)
96 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
97 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
109 /* We want the small data sections together, so single-instruction offsets
110 can access them all, and initialized data all before uninitialized, so
111 we can shorten the on-disk segment size. */
115 _edata = .; /* End of data section */
117 /* will be freed after init */
118 . = ALIGN(PAGE_SIZE); /* Init code and data */
120 INIT_TEXT_SECTION(PAGE_SIZE)
121 INIT_DATA_SECTION(16)
124 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
125 __mips_machines_start = .;
126 KEEP(*(.mips.machines.init))
127 __mips_machines_end = .;
130 /* .exit.text is discarded at runtime, not link time, to deal with
131 * references from .rodata
140 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
143 .rel.dyn : ALIGN(8) {
148 #ifdef CONFIG_MIPS_ELF_APPENDED_DTB
150 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
152 KEEP(*(.appended_dtb))
156 #ifdef CONFIG_RELOCATABLE
160 _relocation_start = .;
162 * Space for relocation table
163 * This needs to be filled so that the
164 * relocs tool can overwrite the content.
165 * An invalid value is left at the start of the
166 * section to abort relocation if the table
167 * has not been filled in.
171 . += CONFIG_RELOCATION_TABLE_SIZE - 4;
176 #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
183 /* leave space for appended DTB */
187 * Align to 64K in attempt to eliminate holes before the
188 * .bss..swapper_pg_dir section at the start of .bss. This
189 * also satisfies PAGE_SIZE alignment as the largest page size
194 /* freed after init ends here */
197 * Force .bss to 64K alignment so that .bss..swapper_pg_dir
198 * gets that alignment. .sbss should be empty, so there will be
199 * no holes after __init_end. */
200 BSS_SECTION(0, 0x10000, 8)
204 /* These mark the ABI of the kernel for debuggers. */
206 KEEP(*(.mdebug.abi32))
209 KEEP(*(.mdebug.abi64))
212 /* This is the MIPS specific mdebug section. */
221 /* These must appear regardless of . */
231 /* Sections to be discarded */
234 /* ABI crap starts here */