source: trunk/libs/newlib/src/libgloss/mips/mti64_64.ld @ 478

Last change on this file since 478 was 444, checked in by satin@…, 7 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 5.1 KB
Line 
1/* The following TEXT start address leaves space for the monitor
2   workspace.  This linker script links ISA64r2 programs for use with the
3   simulator.  We set the ISA explicitly so that we can link objects of
4   different ISAs that are subsets of ISA64r2 but are not extensions of
5   each other (e.g., MIPS32r2 and MIPS64).
6
7   It differs from mti64.ld by using the elf64 ABI targets instead of the
8   elf32 ABI targets in OUTPUT_FORMAT.  */
9
10ENTRY(_start)
11OUTPUT_ARCH("mips:isa64r2")
12OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips")
13GROUP(-lc -lidt -lgcc)
14SEARCH_DIR(.)
15__DYNAMIC  =  0;
16STARTUP(crt0.o)
17
18/*
19 * Allocate the stack to be at the top of memory, since the stack
20 * grows down
21 */
22PROVIDE (__stack = 0);
23/* PROVIDE (__global = 0); */
24
25/*
26 * Initalize some symbols to be zero so we can reference them in the
27 * crt0 without core dumping. These functions are all optional, but
28 * we do this so we can have our crt0 always use them if they exist.
29 * This is so BSPs work better when using the crt0 installed with gcc.
30 * We have to initalize them twice, so we multiple object file
31 * formats, as some prepend an underscore.
32 */
33PROVIDE (hardware_exit_hook = 0);
34PROVIDE (hardware_hazard_hook = 0);
35PROVIDE (hardware_init_hook = 0);
36PROVIDE (software_init_hook = 0);
37
38SECTIONS
39{
40  . = 0xFFFFFFFF80020000;
41  .text : {
42     _ftext = . ;
43    PROVIDE (eprol  =  .);
44    *(.text)
45    *(.text.*)
46    *(.gnu.linkonce.t.*)
47    *(.mips16.fn.*)
48    *(.mips16.call.*)
49  }
50  .init : {
51    KEEP (*(.init))
52  }
53  .fini : {
54    KEEP (*(.fini))
55  }
56  .rel.sdata : {
57    PROVIDE (__runtime_reloc_start = .);
58    *(.rel.sdata)
59    PROVIDE (__runtime_reloc_stop = .);
60  }
61  PROVIDE (etext  =  .);
62  _etext  =  .;
63
64  .eh_frame_hdr : { *(.eh_frame_hdr) }
65  .eh_frame : { KEEP (*(.eh_frame)) }
66  .gcc_except_table : { *(.gcc_except_table) }
67  .jcr : { KEEP (*(.jcr)) }
68  .ctors    :
69  {
70    /* gcc uses crtbegin.o to find the start of
71       the constructors, so we make sure it is
72       first.  Because this is a wildcard, it
73       doesn't matter if the user does not
74       actually link against crtbegin.o; the
75       linker won't look for a file to match a
76       wildcard.  The wildcard also means that it
77       doesn't matter which directory crtbegin.o
78       is in.  */
79
80    KEEP (*crtbegin.o(.ctors))
81
82    /* We don't want to include the .ctor section from
83       from the crtend.o file until after the sorted ctors.
84       The .ctor section from the crtend file contains the
85       end of ctors marker and it must be last */
86
87    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
88    KEEP (*(SORT(.ctors.*)))
89    KEEP (*(.ctors))
90  }
91
92  .dtors    :
93  {
94    KEEP (*crtbegin.o(.dtors))
95    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
96    KEEP (*(SORT(.dtors.*)))
97    KEEP (*(.dtors))
98  }
99
100  . = .;
101  .MIPS.abiflags : {
102    __MIPS_abiflags_start = .;
103    *(.MIPS.abiflags)
104    __MIPS_abiflags_end = .;
105  }
106  .rodata : {
107    *(.rdata)
108    *(.rodata)
109    *(.rodata.*)
110    *(.gnu.linkonce.r.*)
111  }
112   _fdata = ALIGN(16);
113  .data : {
114    *(.data)
115    *(.data.*)
116    *(.gnu.linkonce.d.*)
117  }
118  . = ALIGN(8);
119  _gp = . + 0x8000;
120  __global = _gp;
121  .lit8 : {
122    *(.lit8)
123  }
124  .lit4 : {
125    *(.lit4)
126  }
127  .sdata : {
128    *(.sdata)
129    *(.sdata.*)
130    *(.gnu.linkonce.s.*)
131  }
132  . = ALIGN(4);
133  PROVIDE (edata  =  .);
134  _edata  =  .;
135  _fbss = .;
136  .sbss : {
137    *(.sbss)
138    *(.sbss.*)
139    *(.gnu.linkonce.sb.*)
140    *(.scommon)
141  }
142  .bss : {
143    _bss_start = . ;
144    *(.bss)
145    *(.bss.*)
146    *(.gnu.linkonce.b.*)
147    *(COMMON)
148  }
149
150  . = ALIGN(4);
151  PROVIDE (end = .);
152  _end = .;
153
154  /* DWARF debug sections.
155     Symbols in the DWARF debugging sections are relative to
156     the beginning of the section so we begin them at 0.  */
157
158  /* DWARF 1 */
159  .debug          0 : { *(.debug) }
160  .line           0 : { *(.line) }
161
162  /* GNU DWARF 1 extensions */
163  .debug_srcinfo  0 : { *(.debug_srcinfo) }
164  .debug_sfnames  0 : { *(.debug_sfnames) }
165
166  /* DWARF 1.1 and DWARF 2 */
167  .debug_aranges  0 : { *(.debug_aranges) }
168  .debug_pubnames 0 : { *(.debug_pubnames) }
169
170  /* DWARF 2 */
171  .debug_info     0 : { *(.debug_info) }
172  .debug_abbrev   0 : { *(.debug_abbrev) }
173  .debug_line     0 : { *(.debug_line) }
174  .debug_frame    0 : { *(.debug_frame) }
175  .debug_str      0 : { *(.debug_str) }
176  .debug_loc      0 : { *(.debug_loc) }
177  .debug_macinfo  0 : { *(.debug_macinfo) }
178  .debug_ranges   0 : { *(.debug_ranges) }
179
180  /* SGI/MIPS DWARF 2 extensions */
181  .debug_weaknames 0 : { *(.debug_weaknames) }
182  .debug_funcnames 0 : { *(.debug_funcnames) }
183  .debug_typenames 0 : { *(.debug_typenames) }
184  .debug_varnames  0 : { *(.debug_varnames) }
185
186  /* Special sections generated by gcc */
187  /* Newer GNU linkers strip by default */
188  .mdebug.abi32            0 : { KEEP(*(.mdebug.abi32)) }
189  .mdebug.abiN32           0 : { KEEP(*(.mdebug.abiN32)) }
190  .mdebug.abi64            0 : { KEEP(*(.mdebug.abi64)) }
191  .mdebug.abiO64           0 : { KEEP(*(.mdebug.abiO64)) }
192  .mdebug.eabi32           0 : { KEEP(*(.mdebug.eabi32)) }
193  .mdebug.eabi64           0 : { KEEP(*(.mdebug.eabi64)) }
194  .gcc_compiled_long32     0 : { KEEP(*(.gcc_compiled_long32)) }
195  .gcc_compiled_long64     0 : { KEEP(*(.gcc_compiled_long64)) }
196}
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