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Annotation of qemu/roms/sgabios/rom16.ld, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Linker script for ROM16 binaries
                      3:  */
                      4: 
                      5: /* Script for -z combreloc: combine and sort reloc sections */
                      6: OUTPUT_FORMAT("elf32-i386", "elf32-i386",
                      7:              "elf32-i386")
                      8: OUTPUT_ARCH(i386)
                      9: EXTERN(_start)
                     10: ENTRY(_start)
                     11: SECTIONS
                     12: {
                     13:   /* Read-only sections, merged into text segment: */
                     14:   . = 0x0;
                     15:   PROVIDE (__executable_start = .);
                     16: 
                     17:   .init           :
                     18:   {
                     19:     KEEP (*(.init))
                     20:   } =0x90909090
                     21:   .text           :
                     22:   {
                     23:     *(.text .stub .text.* .gnu.linkonce.t.*)
                     24:     /* .gnu.warning sections are handled specially by elf32.em.  */
                     25:     *(.gnu.warning)
                     26:   } =0x90909090
                     27:   .fini           :
                     28:   {
                     29:     KEEP (*(.fini))
                     30:   } =0x90909090
                     31:   PROVIDE (__etext = .);
                     32:   PROVIDE (_etext = .);
                     33:   PROVIDE (etext = .);
                     34:   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
                     35:   .rodata1        : { *(.rodata1) }
                     36: 
                     37:   /* Ensure the __preinit_array_start label is properly aligned.  We
                     38:      could instead move the label definition inside the section, but
                     39:      the linker would then create the section even if it turns out to
                     40:      be empty, which isn't pretty.  */
                     41:   . = ALIGN(4);
                     42:   PROVIDE (__preinit_array_start = .);
                     43:   .preinit_array     : { *(.preinit_array) }
                     44:   PROVIDE (__preinit_array_end = .);
                     45:   PROVIDE (__init_array_start = .);
                     46:   .init_array     : { *(.init_array) }
                     47:   PROVIDE (__init_array_end = .);
                     48:   PROVIDE (__fini_array_start = .);
                     49:   .fini_array     : { *(.fini_array) }
                     50:   PROVIDE (__fini_array_end = .);
                     51:   PROVIDE (__ctors_start = .);
                     52:   .ctors          :
                     53:   {
                     54:     KEEP (*(SORT(.ctors.*)))
                     55:     KEEP (*(.ctors))
                     56:   }
                     57:   PROVIDE (__ctors_end = .);
                     58:   PROVIDE (__dtors_start = .);
                     59:   .dtors          :
                     60:   {
                     61:     KEEP (*(SORT(.dtors.*)))
                     62:     KEEP (*(.dtors))
                     63:   }
                     64:   PROVIDE (__dtors_end = .);
                     65: 
                     66:   /* Adjust the address for the data segment.  Avoid mixing code and
                     67:      data within same 128-byte chunk. */
                     68:   . = ALIGN(128);
                     69: 
                     70:   .data           :
                     71:   {
                     72:     *(.data .data.* .gnu.linkonce.d.*)
                     73:     SORT(CONSTRUCTORS)
                     74:   }
                     75:   .data1          : { *(.data1) }
                     76:   _edata = .;
                     77:   PROVIDE (edata = .);
                     78:   __bss_start = .;
                     79:   .bss            :
                     80:   {
                     81:    *(.dynbss)
                     82:    *(.bss .bss.* .gnu.linkonce.b.*)
                     83:    *(COMMON)
                     84:    /* Align here to ensure that the .bss section occupies space up to
                     85:       _end.  Align after .bss to ensure correct alignment even if the
                     86:       .bss section disappears because there are no input sections.  */
                     87:    . = ALIGN(32 / 8);
                     88:   }
                     89:   .csum :
                     90:   {
                     91:     . = ALIGN(2048) - 5;
                     92:     LONG(0xff4c494e);
                     93:     /* BYTE(_rom_size_byte); */
                     94:   } =0xffffffff
                     95:   _end = .;
                     96:   PROVIDE (end = .);
                     97:   PROVIDE(_rom_size_byte = (511 + end) / 512);
                     98: 
                     99:   /* Stabs debugging sections.  */
                    100:   .stab          0 : { *(.stab) }
                    101:   .stabstr       0 : { *(.stabstr) }
                    102:   .stab.excl     0 : { *(.stab.excl) }
                    103:   .stab.exclstr  0 : { *(.stab.exclstr) }
                    104:   .stab.index    0 : { *(.stab.index) }
                    105:   .stab.indexstr 0 : { *(.stab.indexstr) }
                    106:   .comment       0 : { *(.comment) }
                    107:   /* DWARF debug sections.
                    108:      Symbols in the DWARF debugging sections are relative to the beginning
                    109:      of the section so we begin them at 0.  */
                    110:   /* DWARF 1 */
                    111:   .debug          0 : { *(.debug) }
                    112:   .line           0 : { *(.line) }
                    113:   /* GNU DWARF 1 extensions */
                    114:   .debug_srcinfo  0 : { *(.debug_srcinfo) }
                    115:   .debug_sfnames  0 : { *(.debug_sfnames) }
                    116:   /* DWARF 1.1 and DWARF 2 */
                    117:   .debug_aranges  0 : { *(.debug_aranges) }
                    118:   .debug_pubnames 0 : { *(.debug_pubnames) }
                    119:   /* DWARF 2 */
                    120:   .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
                    121:   .debug_abbrev   0 : { *(.debug_abbrev) }
                    122:   .debug_line     0 : { *(.debug_line) }
                    123:   .debug_frame    0 : { *(.debug_frame) }
                    124:   .debug_str      0 : { *(.debug_str) }
                    125:   .debug_loc      0 : { *(.debug_loc) }
                    126:   .debug_macinfo  0 : { *(.debug_macinfo) }
                    127:   /* SGI/MIPS DWARF 2 extensions */
                    128:   .debug_weaknames 0 : { *(.debug_weaknames) }
                    129:   .debug_funcnames 0 : { *(.debug_funcnames) }
                    130:   .debug_typenames 0 : { *(.debug_typenames) }
                    131:   .debug_varnames  0 : { *(.debug_varnames) }
                    132:   /DISCARD/ : { *(.note.GNU-stack) }
                    133: }

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