114 lines
2.3 KiB
Plaintext
114 lines
2.3 KiB
Plaintext
/*
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This linker script links the object files when generating the ELF
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output. Note how symbols romdata, bbss, ebss, bdata and edata are used
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in the initialization routine (crt0.c) to initialize the application.
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Two ram areas are specified. The "real ram" is accessed directly while
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the other area is virtualized. It is not possible to execute code in
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virtualized ram.
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*/
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OUTPUT_ARCH(sh3)
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ENTRY(_start)
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MEMORY
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{
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/* System-managed mappings map this area into the add-in data */
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rom : o = 0x00300200, l = 512k
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/* 0x0810000 is apparently mapped to 0x8801c0000 */
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ram : o = 0x08100000, l = 8k
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/* RAM section from P1 area, no MMU involved */
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realram : o = 0x8800d000, l = 12k
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}
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SECTIONS
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{
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/* ROM sections: binary code and read-only data */
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.text : {
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/* Initialization code. */
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*(.pretext.entry)
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*(.pretext)
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_bctors = ABSOLUTE(.);
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*(.ctors)
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_ectors = ABSOLUTE(.);
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_bdtors = ABSOLUTE(.);
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*(.dtors)
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_edtors = ABSOLUTE(.);
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*(.text)
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*(.text.*)
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} > rom
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.rodata : {
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*(.rodata.fxconv);
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*(.rodata.paradox);
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*(.rodata)
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. = ALIGN(4);
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*(.rodata.*)
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_romdata = ALIGN(4) ;
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} > rom
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/* RAM sections: bss section and read/write data
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The .bss section is to be stripped from the ELF file and wiped at
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startup, hence its location is undefined */
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.bss : {
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_bbss = ABSOLUTE(.);
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_sbss = ABSOLUTE(SIZEOF(.bss));
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*(.bss)
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} > ram
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.data : AT(_romdata) ALIGN(4) {
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_bdata = ABSOLUTE(.);
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_sdata = ABSOLUTE(SIZEOF(.data));
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*(.data)
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*(.data.*)
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} > ram
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.cc : AT(_romdata + SIZEOF(.data)) ALIGN(4) {
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*(.eh_frame)
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*(.jcr)
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. = ALIGN(4);
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} > ram
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/* Real RAM sections: interrupt handlers and some *uninitialized* gint
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data */
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_gint_data = _romdata + SIZEOF(.data) + SIZEOF(.cc) ;
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.gint : AT(_gint_data) ALIGN(4) {
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/* The vbr needs to be 0x100-aligned because of an ld issue */
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. = ALIGN(0x100) ;
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_gint_vbr = . ;
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_bgint = ABSOLUTE(.) ;
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/* Exception handler */
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. = _gint_vbr + 0x100 ;
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*(.gint.exc)
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/* TLB miss handler */
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. = _gint_vbr + 0x400 ;
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*(.gint.tlb)
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/* Interrupt handler */
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. = _gint_vbr + 0x600 ;
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*(.gint.int)
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. = ALIGN(4);
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_egint = ABSOLUTE(.) ;
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} > realram
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.gint_bss : AT(_gint_data + SIZEOF(.gint)) ALIGN(4) {
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_bgbss = ABSOLUTE(.) ;
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*(.gint.bss)
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_egbss = ABSOLUTE(.) ;
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} > realram
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}
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