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Diffstat (limited to 'libgloss/sparc/erc32.ld')
-rw-r--r--libgloss/sparc/erc32.ld146
1 files changed, 146 insertions, 0 deletions
diff --git a/libgloss/sparc/erc32.ld b/libgloss/sparc/erc32.ld
new file mode 100644
index 000000000..179dcc07c
--- /dev/null
+++ b/libgloss/sparc/erc32.ld
@@ -0,0 +1,146 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+STARTUP(traps.o)
+INPUT(sim-crt0.o)
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(.)
+__DYNAMIC = 0;
+GROUP(-lc -lsim -lgcc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text |
+ * | _stext |
+ * | _etext |
+ * | ctor list | the ctor and dtor lists are for
+ * | dtor list | C++ support
+ * | _end_text |
+ * +--------------------+
+ * | .data | initialized data goes here
+ * | _sdata |
+ * | _edata |
+ * +--------------------+
+ * | .bss |
+ * | __bss_start | start of bss, cleared by crt0
+ * | _end | start of heap, used by sbrk()
+ * +--------------------+
+ * | heap space |
+ * | _ENDHEAP |
+ * | stack space |
+ * | __stack | top of stack
+ * +--------------------+ <- high memory
+ */
+
+/*
+ * User modifiable values:
+ *
+ * _CLOCK_SPEED in Mhz (used to program the counter/timers)
+ *
+ * _PROM_SIZE size of PROM (permissible values are 4K, 8K, 16K
+ * 32K, 64K, 128K, 256K, and 512K)
+ * _RAM_SIZE size of RAM (permissible values are 256K, 512K,
+ * 1MB, 2Mb, 4Mb, 8Mb, 16Mb, and 32Mb)
+ *
+ * These symbols are only used in assembler code, so they only need to
+ * be listed once. They should always be refered to without SYM().
+ */
+
+_CLOCK_SPEED = 10;
+
+_PROM_SIZE = 4M;
+_RAM_SIZE = 2M;
+
+_RAM_START = 0x02020000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+_STACK_SIZE = (16 * 1024);
+_PROM_START = 0x00000000;
+_PROM_END = _PROM_START + _PROM_SIZE;
+
+
+/*
+ * Base address of the on-CPU peripherals
+ */
+
+_ERC32_MEC = 0x01f80000;
+
+/*
+ * Setup the memory map for the SIS simulator.
+ * stack grows up towards low memory.
+ */
+/*
+MEMORY
+{
+ rom : ORIGIN = 0x00000000, LENGTH = 4M
+ ram (rwx) : ORIGIN = 0x02000000, LENGTH = 2M
+}
+*/
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+SECTIONS
+{
+ .text 0x02000000 : {
+ stext = .;
+ _stext = .;
+ *(.text)
+ _etext = .;
+ __CTOR_LIST__ = .;
+ LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+ *(.ctors)
+ LONG(0)
+ __CTOR_END__ = .;
+ __DTOR_LIST__ = .;
+ LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+ *(.dtors)
+ LONG(0)
+ __DTOR_END__ = .;
+ *(.lit)
+ *(.shdata)
+ _endtext = .;
+ } > ram
+ .shbss SIZEOF(.text) + ADDR(.text) : {
+ *(.shbss)
+ }
+ .talias : { } > ram
+ .data : {
+ sdata = .;
+ _sdata = .;
+ *(.data)
+ edata = .;
+ _edata = .;
+ } > ram
+ .bss SIZEOF(.data) + ADDR(.data) :
+ {
+ sbss = . ;
+ _sbss = . ;
+ __bss_start = ALIGN(0x8);
+ *(.bss)
+ *(COMMON)
+ end = ALIGN(0x8);
+ _end = ALIGN(0x8);
+ __end = ALIGN(0x8);
+ ebss = .;
+ _ebss = .;
+ }
+ .mstack : { } > ram
+ .rstack : { } > ram
+ .stab 0 (NOLOAD) :
+ {
+ [ .stab ]
+ }
+ .stabstr 0 (NOLOAD) :
+ {
+ [ .stabstr ]
+ }
+}