diff options
Diffstat (limited to 'qemu/roms/ipxe/src/arch/i386/scripts')
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/scripts/i386-kir.lds | 202 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/scripts/i386.lds | 245 | ||||
| -rw-r--r-- | qemu/roms/ipxe/src/arch/i386/scripts/linux.lds | 104 |
3 files changed, 551 insertions, 0 deletions
diff --git a/qemu/roms/ipxe/src/arch/i386/scripts/i386-kir.lds b/qemu/roms/ipxe/src/arch/i386/scripts/i386-kir.lds new file mode 100644 index 000000000..66bf804e6 --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/scripts/i386-kir.lds @@ -0,0 +1,202 @@ +/* -*- sh -*- */ + +/* + * Linker script for i386 images + * + */ + +OUTPUT_FORMAT ( "elf32-i386", "elf32-i386", "elf32-i386" ) +OUTPUT_ARCH ( i386 ) + +SECTIONS { + + /* All sections in the resulting file have consecutive load + * addresses, but may have individual link addresses depending on + * the memory model being used. + * + * The linker symbols _prefix_link_addr, load_addr, and + * _max_align may be specified explicitly. If not specified, they + * will default to: + * + * _prefix_link_addr = 0 + * _load_addr = 0 + * _max_align = 16 + * + * We guarantee alignment of virtual addresses to any alignment + * specified by the constituent object files (e.g. via + * __attribute__((aligned(x)))). Load addresses are guaranteed + * only up to _max_align. Provided that all loader and relocation + * code honours _max_align, this means that physical addresses are + * also guaranteed up to _max_align. + * + * Note that when using -DKEEP_IT_REAL, the UNDI segments are only + * guaranteed to be loaded on a paragraph boundary (i.e. 16-byte + * alignment). Using _max_align>16 will therefore not guarantee + * >16-byte alignment of physical addresses when -DKEEP_IT_REAL is + * used (though virtual addresses will still be fully aligned). + * + */ + + /* + * The prefix + */ + + _prefix_link_addr = DEFINED ( _prefix_link_addr ) ? _prefix_link_addr : 0; + . = _prefix_link_addr; + _prefix = .; + + .prefix : AT ( _prefix_load_offset + __prefix ) { + __prefix = .; + _entry = .; + *(.prefix) + *(.prefix.*) + _eprefix_progbits = .; + } + + _eprefix = .; + + /* + * The 16-bit sections + */ + + _text16_link_addr = 0; + . = _text16_link_addr; + _text16 = .; + + . += 1; /* Prevent NULL being valid */ + + .text16 : AT ( _text16_load_offset + __text16 ) { + __text16 = .; + KEEP(*(.text.null_trap)) + KEEP(*(.text.null_trap.*)) + *(.text16) + *(.text16.*) + *(.text) + *(.text.*) + _etext16_progbits = .; + } = 0x9090 + + _etext16 = .; + + _data16_link_addr = 0; + . = _data16_link_addr; + _data16 = .; + + . += 1; /* Prevent NULL being valid */ + + .rodata16 : AT ( _data16_load_offset + __rodata16 ) { + __rodata16 = .; + *(.rodata16) + *(.rodata16.*) + *(.rodata) + *(.rodata.*) + } + .data16 : AT ( _data16_load_offset + __data16 ) { + __data16 = .; + *(.data16) + *(.data16.*) + *(.data) + *(.data.*) + KEEP(*(SORT(.tbl.*))) /* Various tables. See include/tables.h */ + KEEP(*(.provided)) + KEEP(*(.provided.*)) + _edata16_progbits = .; + } + .bss16 : AT ( _data16_load_offset + __bss16 ) { + __bss16 = .; + _bss16 = .; + *(.bss16) + *(.bss16.*) + *(.bss) + *(.bss.*) + *(COMMON) + _ebss16 = .; + } + .stack16 : AT ( _data16_load_offset + __stack16 ) { + __stack16 = .; + *(.stack16) + *(.stack16.*) + *(.stack) + *(.stack.*) + } + + _edata16 = .; + + _end = .; + + /* + * Dispose of the comment and note sections to make the link map + * easier to read + */ + + /DISCARD/ : { + *(.comment) + *(.comment.*) + *(.note) + *(.note.*) + *(.discard) + *(.discard.*) + } + + /* + * Load address calculations. The slightly obscure nature of the + * calculations is because ALIGN(x) can only operate on the + * location counter. + */ + + _max_align = DEFINED ( _max_align ) ? _max_align : 16; + _load_addr = DEFINED ( _load_addr ) ? _load_addr : 0; + + . = _load_addr; + + . -= _prefix_link_addr; + _prefix_load_offset = ALIGN ( _max_align ); + _prefix_load_addr = _prefix_link_addr + _prefix_load_offset; + _prefix_size = _eprefix - _prefix; + _prefix_progbits_size = _eprefix_progbits - _prefix; + . = _prefix_load_addr + _prefix_progbits_size; + + . -= _text16_link_addr; + _text16_load_offset = ALIGN ( _max_align ); + _text16_load_addr = _text16_link_addr + _text16_load_offset; + _text16_size = _etext16 - _text16; + _text16_progbits_size = _etext16_progbits - _text16; + . = _text16_load_addr + _text16_progbits_size; + + . -= _data16_link_addr; + _data16_load_offset = ALIGN ( _max_align ); + _data16_load_addr = _data16_link_addr + _data16_load_offset; + _data16_size = _edata16 - _data16; + _data16_progbits_size = _edata16_progbits - _data16; + . = _data16_load_addr + _data16_progbits_size; + + . = ALIGN ( _max_align ); + + _load_size = . - _load_addr; + + /* + * Alignment checks. ALIGN() can only operate on the location + * counter, so we set the location counter to each value we want + * to check. + */ + + . = _prefix_load_addr - _prefix_link_addr; + _assert = ASSERT ( ( . == ALIGN ( _max_align ) ), + "_prefix is badly aligned" ); + + . = _text16_load_addr - _text16_link_addr; + _assert = ASSERT ( ( . == ALIGN ( _max_align ) ), + "_text16 is badly aligned" ); + + . = _data16_load_addr - _data16_link_addr; + _assert = ASSERT ( ( . == ALIGN ( _max_align ) ), + "_data16 is badly aligned" ); + + /* + * Values calculated to save code from doing it + */ + _text16_size_pgh = ( ( _text16_size + 15 ) / 16 ); + _data16_size_pgh = ( ( _data16_size + 15 ) / 16 ); + _load_size_pgh = ( ( _load_size + 15 ) / 16 ); + _load_size_sect = ( ( _load_size + 511 ) / 512 ); +} diff --git a/qemu/roms/ipxe/src/arch/i386/scripts/i386.lds b/qemu/roms/ipxe/src/arch/i386/scripts/i386.lds new file mode 100644 index 000000000..98f95cb23 --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/scripts/i386.lds @@ -0,0 +1,245 @@ +/* -*- ld-script -*- */ + +/* + * Linker script for i386 images + * + */ + +SECTIONS { + + /* Each section starts at a virtual address of zero. + * + * We guarantee alignment of virtual addresses to any alignment + * specified by the constituent object files (e.g. via + * __attribute__((aligned(x)))). Load addresses are guaranteed + * only up to _max_align. Provided that all loader and relocation + * code honours _max_align, this means that physical addresses are + * also guaranteed up to _max_align. + * + * Note that when using -DKEEP_IT_REAL, the UNDI segments are only + * guaranteed to be loaded on a paragraph boundary (i.e. 16-byte + * alignment). Using _max_align>16 will therefore not guarantee + * >16-byte alignment of physical addresses when -DKEEP_IT_REAL is + * used (though virtual addresses will still be fully aligned). + * + */ + + PROVIDE ( _max_align = 16 ); + + /* + * The prefix + * + */ + + .prefix 0x0 : AT ( _prefix_lma ) { + _prefix = .; + *(.prefix) + *(.prefix.*) + _mprefix = .; + } .bss.prefix (NOLOAD) : AT ( _end_lma ) { + _eprefix = .; + } + _prefix_filesz = ABSOLUTE ( _mprefix ) - ABSOLUTE ( _prefix ); + _prefix_memsz = ABSOLUTE ( _eprefix ) - ABSOLUTE ( _prefix ); + + /* + * The 16-bit (real-mode) code section + * + */ + + .text16.early 0x0 : AT ( _text16_early_lma ) { + _text16 = .; + KEEP(*(.text16.null)) + KEEP(*(.text16.null.*)) + . += 1; /* Prevent NULL being valid */ + *(.text16.early) + *(.text16.early.*) + _etext16_early = .; + } .text16.late ALIGN ( _max_align ) : AT ( _text16_late_lma ) { + _text16_late = .; + *(.text16) + *(.text16.*) + _mtext16 = .; + } .bss.text16 (NOLOAD) : AT ( _end_lma ) { + _etext16 = .; + } + _text16_early_filesz = ABSOLUTE ( _etext16_early ) - ABSOLUTE ( _text16 ); + _text16_early_memsz = ABSOLUTE ( _etext16_early ) - ABSOLUTE ( _text16 ); + _text16_late_filesz = ABSOLUTE ( _mtext16 ) - ABSOLUTE ( _text16_late ); + _text16_late_memsz = ABSOLUTE ( _etext16 ) - ABSOLUTE ( _text16_late ); + _text16_memsz = ABSOLUTE ( _etext16 ) - ABSOLUTE ( _text16 ); + + /* + * The 16-bit (real-mode) data section + * + */ + + .data16 0x0 : AT ( _data16_lma ) { + _data16 = .; + . += 1; /* Prevent NULL being valid */ + *(.rodata16) + *(.rodata16.*) + *(.data16) + *(.data16.*) + _mdata16 = .; + } .bss.data16 (NOLOAD) : AT ( _end_lma ) { + *(.bss16) + *(.bss16.*) + *(.stack16) + *(.stack16.*) + _edata16 = .; + } + _data16_filesz = ABSOLUTE ( _mdata16 ) - ABSOLUTE ( _data16 ); + _data16_memsz = ABSOLUTE ( _edata16 ) - ABSOLUTE ( _data16 ); + + /* + * The 32-bit sections + * + */ + + .textdata 0x0 : AT ( _textdata_lma ) { + _textdata = .; + KEEP(*(.text.null_trap)) + KEEP(*(.text.null_trap.*)) + . += 1; /* Prevent NULL being valid */ + *(.text) + *(.text.*) + *(.rodata) + *(.rodata.*) + *(.data) + *(.data.*) + KEEP(*(SORT(.tbl.*))) /* Various tables. See include/tables.h */ + KEEP(*(.provided)) + KEEP(*(.provided.*)) + _mtextdata = .; + } .bss.textdata (NOLOAD) : AT ( _end_lma ) { + *(.bss) + *(.bss.*) + *(COMMON) + *(.stack) + *(.stack.*) + _etextdata = .; + } + _textdata_filesz = ABSOLUTE ( _mtextdata ) - ABSOLUTE ( _textdata ); + _textdata_memsz = ABSOLUTE ( _etextdata ) - ABSOLUTE ( _textdata ); + + /* + * Payload prefix + * + * If present, this will be placed between .text16.early and .text16.late. + * + */ + .pprefix 0x0 : AT ( _pprefix_lma ) { + _pprefix = .; + KEEP(*(.pprefix)) + KEEP(*(.pprefix.*)) + _mpprefix = .; + } .bss.pprefix (NOLOAD) : AT ( _end_lma ) { + _epprefix = .; + } + _pprefix_filesz = ABSOLUTE ( _mpprefix ) - ABSOLUTE ( _pprefix ); + _pprefix_memsz = ABSOLUTE ( _epprefix ) - ABSOLUTE ( _pprefix ); + + /* + * Compressor information block + * + */ + + .zinfo 0x0 : AT ( _zinfo_lma ) { + _zinfo = .; + KEEP(*(.zinfo)) + KEEP(*(.zinfo.*)) + _mzinfo = .; + } .bss.zinfo (NOLOAD) : AT ( _end_lma ) { + _ezinfo = .; + } + _zinfo_filesz = ABSOLUTE ( _mzinfo ) - ABSOLUTE ( _zinfo ); + _zinfo_memsz = ABSOLUTE ( _ezinfo ) - ABSOLUTE ( _zinfo ); + + /* + * Weak symbols that need zero values if not otherwise defined + * + */ + + .weak 0x0 : AT ( _end_lma ) { + _weak = .; + *(.weak) + *(.weak.*) + _eweak = .; + } + _assert = ASSERT ( ( _weak == _eweak ), ".weak is non-zero length" ); + + /* + * Dispose of the comment and note sections to make the link map + * easier to read + * + */ + + /DISCARD/ : { + *(.comment) + *(.comment.*) + *(.note) + *(.note.*) + *(.eh_frame) + *(.eh_frame.*) + *(.rel) + *(.rel.*) + *(.einfo) + *(.einfo.*) + *(.discard) + *(.discard.*) + } + + /* + * Load address calculations. In older versions of ld, ALIGN() + * can operate only on the location counter, so we use that. + * + */ + + . = 0; + + . = ALIGN ( _max_align ); + _prefix_lma = .; + . += _prefix_filesz; + + . = ALIGN ( _max_align ); + _text16_early_lma = .; + . += _text16_early_filesz; + + . = ALIGN ( _max_align ); + . = ALIGN ( _payload_align ); + _pprefix_lma = .; + . += _pprefix_filesz; + + . = ALIGN ( _max_align ); + _payload_lma = .; + _pprefix_skip = ABSOLUTE ( _payload_lma ) - ABSOLUTE ( _pprefix_lma ); + _text16_late_lma = .; + . += _text16_late_filesz; + + . = ALIGN ( _max_align ); + _data16_lma = .; + . += _data16_filesz; + + . = ALIGN ( _max_align ); + _textdata_lma = .; + . += _textdata_filesz; + + _filesz = .; /* Do not include zinfo block in file size */ + + . = ALIGN ( _max_align ); + _zinfo_lma = .; + . += _zinfo_filesz; + + . = ALIGN ( _max_align ); + _end_lma = .; + + /* + * Values calculated to save code from doing it + * + */ + _text16_memsz_pgh = ( ( _text16_memsz + 15 ) / 16 ); + _data16_memsz_pgh = ( ( _data16_memsz + 15 ) / 16 ); + _textdata_memsz_pgh = ( ( _textdata_memsz + 15 ) / 16 ); + _textdata_memsz_kb = ( ( _textdata_memsz + 1023 ) / 1024 ); +} diff --git a/qemu/roms/ipxe/src/arch/i386/scripts/linux.lds b/qemu/roms/ipxe/src/arch/i386/scripts/linux.lds new file mode 100644 index 000000000..9f2eeaf3c --- /dev/null +++ b/qemu/roms/ipxe/src/arch/i386/scripts/linux.lds @@ -0,0 +1,104 @@ +/* -*- sh -*- */ + +/* + * Linker script for i386 Linux images + * + */ + +OUTPUT_FORMAT ( "elf32-i386", "elf32-i386", "elf32-i386" ) +OUTPUT_ARCH ( i386 ) + +SECTIONS { + _max_align = 32; + + . = 0x08048000; + + /* + * The text section + * + */ + + . = ALIGN ( _max_align ); + .text : { + _text = .; + *(.text) + *(.text.*) + _etext = .; + } + + /* + * The rodata section + * + */ + + . = ALIGN ( _max_align ); + .rodata : { + _rodata = .; + *(.rodata) + *(.rodata.*) + _erodata = .; + } + + /* + * The data section + * + * Adjust the address for the data segment. We want to adjust up to + * the same address within the page on the next page up. + */ + + . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); + . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); + .data : { + _data = .; + *(.data) + *(.data.*) + KEEP(*(SORT(.tbl.*))) + KEEP(*(.provided)) + KEEP(*(.provided.*)) + _edata = .; + } + + /* + * The bss section + * + */ + + . = ALIGN ( _max_align ); + .bss : { + _bss = .; + *(.bss) + *(.bss.*) + *(COMMON) + _ebss = .; + } + + /* + * Weak symbols that need zero values if not otherwise defined + * + */ + + .weak 0x0 : { + _weak = .; + *(.weak) + *(.weak.*) + _eweak = .; + } + _assert = ASSERT ( ( _weak == _eweak ), ".weak is non-zero length" ); + + /* + * Dispose of the comment and note sections to make the link map + * easier to read + * + */ + + /DISCARD/ : { + *(.comment) + *(.comment.*) + *(.note) + *(.note.*) + *(.rel) + *(.rel.*) + *(.discard) + *(.discard.*) + } +} |