^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #include <asm/asm-offsets.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #include <asm/thread_info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #define PAGE_SIZE _PAGE_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Put .bss..swapper_pg_dir as the first thing in .bss. This will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * ensure that it has .bss alignment (64K).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* Cavium Octeon should not have a separate PT_NOTE Program Header. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #ifndef CONFIG_CAVIUM_OCTEON_SOC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define EMITS_PT_NOTE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm-generic/vmlinux.lds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #undef mips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define mips mips
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) OUTPUT_ARCH(mips)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ENTRY(kernel_entry)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) PHDRS {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) text PT_LOAD FLAGS(7); /* RWX */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #ifndef CONFIG_CAVIUM_OCTEON_SOC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) note PT_NOTE FLAGS(4); /* R__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #endif /* CAVIUM_OCTEON_SOC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #ifdef CONFIG_32BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #ifdef CONFIG_CPU_LITTLE_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) jiffies = jiffies_64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) jiffies = jiffies_64 + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) jiffies = jiffies_64;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) SECTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #ifdef CONFIG_BOOT_ELF64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) /* Read-only sections, merged into text segment: */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) /* . = 0xc000000000000000; */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* This is the value for an Origin kernel, taken from an IRIX kernel. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* . = 0xc00000000001c000; */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) /* Set the vaddr for the text segment to a value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * >= 0xa800 0000 0001 9000 if no symmon is going to configured
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * >= 0xa800 0000 0030 0000 otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /* . = 0xa800000000300000; */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) . = 0xffffffff80300000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) . = LINKER_LOAD_ADDRESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) /* read-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) _text = .; /* Text and read-only data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .text : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) TEXT_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) SCHED_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) CPUIDLE_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) LOCK_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) KPROBES_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) IRQENTRY_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) SOFTIRQENTRY_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) *(.text.*)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) *(.fixup)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) *(.gnu.warning)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) } :text = 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) _etext = .; /* End of text section */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) EXCEPTION_TABLE(16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* Exception table for data bus errors */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) __dbe_table : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) __start___dbe_table = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) KEEP(*(__dbe_table))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) __stop___dbe_table = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) _sdata = .; /* Start of data section */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) RO_DATA(4096)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) /* writeable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .data : { /* Data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) INIT_TASK_DATA(THREAD_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) NOSAVE_DATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) PAGE_ALIGNED_DATA(PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) DATA_DATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) CONSTRUCTORS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) BUG_TABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) _gp = . + 0x8000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .lit8 : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) *(.lit8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) .lit4 : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) *(.lit4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) /* We want the small data sections together, so single-instruction offsets
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) can access them all, and initialized data all before uninitialized, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) we can shorten the on-disk segment size. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .sdata : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) *(.sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) _edata = .; /* End of data section */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) /* will be freed after init */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) . = ALIGN(PAGE_SIZE); /* Init code and data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) __init_begin = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) INIT_TEXT_SECTION(PAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) INIT_DATA_SECTION(16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) . = ALIGN(4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) __mips_machines_start = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) KEEP(*(.mips.machines.init))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) __mips_machines_end = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) /* .exit.text is discarded at runtime, not link time, to deal with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) * references from .rodata
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .exit.text : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) EXIT_TEXT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .exit.data : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) EXIT_DATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) #ifdef CONFIG_SMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #ifdef CONFIG_MIPS_ELF_APPENDED_DTB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) *(.appended_dtb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) KEEP(*(.appended_dtb))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #ifdef CONFIG_RELOCATABLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) . = ALIGN(4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .data.reloc : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) _relocation_start = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) * Space for relocation table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * This needs to be filled so that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * relocs tool can overwrite the content.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * An invalid value is left at the start of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * section to abort relocation if the table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) * has not been filled in.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) LONG(0xFFFFFFFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) FILL(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) . += CONFIG_RELOCATION_TABLE_SIZE - 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) _relocation_end = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) #ifdef CONFIG_MIPS_RAW_APPENDED_DTB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) __appended_dtb = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) /* leave space for appended DTB */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) . += 0x100000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * Align to 64K in attempt to eliminate holes before the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * .bss..swapper_pg_dir section at the start of .bss. This
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * also satisfies PAGE_SIZE alignment as the largest page size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * allowed is 64K.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) . = ALIGN(0x10000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) __init_end = .;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) /* freed after init ends here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) * Force .bss to 64K alignment so that .bss..swapper_pg_dir
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * gets that alignment. .sbss should be empty, so there will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * no holes after __init_end. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) BSS_SECTION(0, 0x10000, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) _end = . ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) /* These mark the ABI of the kernel for debuggers. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) .mdebug.abi32 : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) KEEP(*(.mdebug.abi32))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .mdebug.abi64 : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) KEEP(*(.mdebug.abi64))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) /* This is the MIPS specific mdebug section. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) .mdebug : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) *(.mdebug)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) STABS_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) DWARF_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) ELF_DETAILS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) /* These must appear regardless of . */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) .gptab.sdata : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) *(.gptab.data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) *(.gptab.sdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) .gptab.sbss : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) *(.gptab.bss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) *(.gptab.sbss)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) /* Sections to be discarded */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) DISCARDS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) /DISCARD/ : {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) /* ABI crap starts here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) *(.MIPS.abiflags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) *(.MIPS.options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) *(.options)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) *(.pdr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) *(.reginfo)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) }