| /* |
| * memory map assumed by prom and standalone system |
| * |
| * physical kseg1 use |
| * |
| * 0x1fc20000 0xbfc20000 |
| * to prom text and read-only data |
| * 0x1fc00000 0xbfc00000 (in cpu board "prom space") |
| * |
| * (Top of RAM - 8K) downward sash and standalone program stack |
| * | ( - 8K to preserve kernel message bufs) |
| * V (standalone programs grow their stack |
| * immediately below sash's stack) |
| * |
| * ^ |
| * | |
| * 0x00100000 0xa0100000 upward sash program text, data, and bss |
| * |
| * ^ |
| * | |
| * 0x00020000 0xa0020000 upward standalone program text, data, and bss |
| * (kernel is loaded here, also) |
| * |
| * 0x0001ffff 0xa001ffff downward dbgmon stack |
| * | |
| * V |
| * |
| * ^ |
| * | |
| * 0x00010000 0xa0010000 upward dbgmon text, data, and bss |
| * |
| * 0x0000ffff 0xa000ffff downward prom monitor stack |
| * | |
| * V |
| * |
| * ^ |
| * | |
| * 0x00000500 0xa0000500 upward prom monitor bss |
| * |
| * 0x000004ff 0xa00004ff |
| * to restart block |
| * 0x00000400 0xa0000400 |
| * |
| * 0x000003ff 0xa00003ff |
| * to general exception code |
| * 0x00000080 0xa0000080 (note cpu addresses as 0x80000080!) |
| * |
| * 0x0000007f 0xa000007f |
| * to utlbmiss exception code |
| * 0x00000000 0xa0000000 (note cpu addresses as 0x80000000!) |
| */ |
| |
| /* Uncomment this if you want srecords. |
| OUTPUT_FORMAT(srec) |
| */ |
| ENTRY(start) |
| STARTUP(crt0.o) |
| INPUT(array.o) |
| SEARCH_DIR(.) |
| __DYNAMIC = 0; |
| |
| /* |
| * Allocate the stack to be at the top of memory, since the stack |
| * grows down |
| * |
| PROVIDE (__stack = 1M - 8); |
| */ |
| |
| /* |
| * Initalize some symbols to be zero so we can reference them in the |
| * crt0 without core dumping. These functions are all optional, but |
| * we do this so we can have our crt0 always use them if they exist. |
| * This is so BSPs work better when using the crt0 installed with gcc. |
| * We have to initalize them twice, so we multiple object file |
| * formats, as some prepend an underscore. |
| */ |
| PROVIDE (hardware_exit_hook = 0); |
| PROVIDE (hardware_hazard_hook = 0); |
| PROVIDE (hardware_init_hook = 0); |
| PROVIDE (software_init_hook = 0); |
| |
| SECTIONS |
| { |
| . = 0x80020000; |
| .text : { |
| _ftext = . ; |
| KEEP (*(.init)) |
| eprol = .; |
| *(.text) |
| *(.text.*) |
| *(.gnu.linkonce.t.*) |
| *(.mips16.fn.*) |
| *(.mips16.call.*) |
| PROVIDE (__runtime_reloc_start = .); |
| *(.rel.sdata) |
| PROVIDE (__runtime_reloc_stop = .); |
| KEEP (*(.fini)) |
| etext = .; |
| _etext = .; |
| } |
| |
| .eh_frame_hdr : { *(.eh_frame_hdr) } |
| .eh_frame : { KEEP (*(.eh_frame)) } |
| .gcc_except_table : { *(.gcc_except_table) } |
| .jcr : { KEEP (*(.jcr)) } |
| .ctors : |
| { |
| /* gcc uses crtbegin.o to find the start of |
| the constructors, so we make sure it is |
| first. Because this is a wildcard, it |
| doesn't matter if the user does not |
| actually link against crtbegin.o; the |
| linker won't look for a file to match a |
| wildcard. The wildcard also means that it |
| doesn't matter which directory crtbegin.o |
| is in. */ |
| |
| KEEP (*crtbegin.o(.ctors)) |
| |
| /* We don't want to include the .ctor section from |
| from the crtend.o file until after the sorted ctors. |
| The .ctor section from the crtend file contains the |
| end of ctors marker and it must be last */ |
| |
| KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) |
| KEEP (*(SORT(.ctors.*))) |
| KEEP (*(.ctors)) |
| } |
| |
| .dtors : |
| { |
| KEEP (*crtbegin.o(.dtors)) |
| KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) |
| KEEP (*(SORT(.dtors.*))) |
| KEEP (*(.dtors)) |
| } |
| |
| . = .; |
| .rdata : { |
| *(.rdata) |
| *(.rodata) |
| *(.rodata.*) |
| *(.gnu.linkonce.r.*) |
| } |
| _fdata = ALIGN(16); |
| .data : { |
| *(.data) |
| *(.data.*) |
| *(.gnu.linkonce.d.*) |
| } |
| _gp = ALIGN(16) + 0x8000; |
| .lit8 : { |
| *(.lit8) |
| } |
| .lit4 : { |
| *(.lit4) |
| } |
| .sdata : { |
| *(.sdata) |
| *(.sdata.*) |
| *(.gnu.linkonce.s.*) |
| } |
| edata = .; |
| _edata = .; |
| _fbss = .; |
| .sbss : { |
| *(.sbss) |
| *(.sbss.*) |
| *(.gnu.linkonce.sb.*) |
| *(.scommon) |
| } |
| .bss : { |
| _bss_start = . ; |
| *(.bss) |
| *(.bss.*) |
| *(.gnu.linkonce.b.*) |
| *(COMMON) |
| } |
| end = .; |
| _end = .; |
| } |