source: trunk/libs/newlib/src/libgloss/mips/idt32.ld @ 532

Last change on this file since 532 was 444, checked in by satin@…, 6 years ago

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

File size: 4.7 KB
Line 
1/* The following TEXT start address leaves space for the monitor
2   workspace.  This linker script links ISA32r2 programs for use with
3   the simulator.  */
4
5ENTRY(_start)
6OUTPUT_ARCH("mips:isa32r2")
7OUTPUT_FORMAT("elf32-littlemips", "elf32-bigmips", "elf32-littlemips")
8GROUP(-lc -lidt -lgcc)
9SEARCH_DIR(.)
10__DYNAMIC  =  0;
11STARTUP(crt0.o)
12
13/*
14 * Allocate the stack to be at the top of memory, since the stack
15 * grows down
16 */
17PROVIDE (__stack = 0);
18/* PROVIDE (__global = 0); */
19
20/*
21 * Initalize some symbols to be zero so we can reference them in the
22 * crt0 without core dumping. These functions are all optional, but
23 * we do this so we can have our crt0 always use them if they exist.
24 * This is so BSPs work better when using the crt0 installed with gcc.
25 * We have to initalize them twice, so we multiple object file
26 * formats, as some prepend an underscore.
27 */
28PROVIDE (hardware_exit_hook = 0);
29PROVIDE (hardware_hazard_hook = 0);
30PROVIDE (hardware_init_hook = 0);
31PROVIDE (software_init_hook = 0);
32
33SECTIONS
34{
35  . = 0x80020000;
36  .text : {
37     _ftext = . ;
38    PROVIDE (eprol  =  .);
39    *(.text)
40    *(.text.*)
41    *(.gnu.linkonce.t.*)
42    *(.mips16.fn.*)
43    *(.mips16.call.*)
44  }
45  .init : {
46    KEEP (*(.init))
47  }
48  .fini : {
49    KEEP (*(.fini))
50  }
51  .rel.sdata : {
52    PROVIDE (__runtime_reloc_start = .);
53    *(.rel.sdata)
54    PROVIDE (__runtime_reloc_stop = .);
55  }
56  PROVIDE (etext  =  .);
57  _etext  =  .;
58
59
60  .eh_frame_hdr : { *(.eh_frame_hdr) }
61  .eh_frame : { KEEP (*(.eh_frame)) }
62  .gcc_except_table : { *(.gcc_except_table) }
63  .jcr : { KEEP (*(.jcr)) }
64  .ctors    :
65  {
66    /* gcc uses crtbegin.o to find the start of
67       the constructors, so we make sure it is
68       first.  Because this is a wildcard, it
69       doesn't matter if the user does not
70       actually link against crtbegin.o; the
71       linker won't look for a file to match a
72       wildcard.  The wildcard also means that it
73       doesn't matter which directory crtbegin.o
74       is in.  */
75
76    KEEP (*crtbegin.o(.ctors))
77
78    /* We don't want to include the .ctor section from
79       from the crtend.o file until after the sorted ctors.
80       The .ctor section from the crtend file contains the
81       end of ctors marker and it must be last */
82
83    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
84    KEEP (*(SORT(.ctors.*)))
85    KEEP (*(.ctors))
86  }
87
88  .dtors    :
89  {
90    KEEP (*crtbegin.o(.dtors))
91    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
92    KEEP (*(SORT(.dtors.*)))
93    KEEP (*(.dtors))
94  }
95
96  . = .;
97  .rodata : {
98    *(.rdata)
99    *(.rodata)
100    *(.rodata.*)
101    *(.gnu.linkonce.r.*)
102  }
103   _fdata = ALIGN(16);
104  .data : {
105    *(.data)
106    *(.data.*)
107    *(.gnu.linkonce.d.*)
108  }
109  . = ALIGN(8);
110  _gp = . + 0x8000;
111  __global = _gp;
112  .lit8 : {
113    *(.lit8)
114  }
115  .lit4 : {
116    *(.lit4)
117  }
118  .sdata : {
119    *(.sdata)
120    *(.sdata.*)
121    *(.gnu.linkonce.s.*)
122  }
123  . = ALIGN(4);
124  PROVIDE (edata  =  .);
125  _edata  =  .;
126  _fbss = .;
127  .sbss : {
128    *(.sbss)
129    *(.sbss.*)
130    *(.gnu.linkonce.sb.*)
131    *(.scommon)
132  }
133  .bss : {
134    _bss_start = . ;
135    *(.bss)
136    *(.bss.*)
137    *(.gnu.linkonce.b.*)
138    *(COMMON)
139  }
140
141   PROVIDE (end = .);
142   _end = .;
143
144  /* DWARF debug sections.
145     Symbols in the DWARF debugging sections are relative to
146     the beginning of the section so we begin them at 0.  */
147
148  /* DWARF 1 */
149  .debug          0 : { *(.debug) }
150  .line           0 : { *(.line) }
151
152  /* GNU DWARF 1 extensions */
153  .debug_srcinfo  0 : { *(.debug_srcinfo) }
154  .debug_sfnames  0 : { *(.debug_sfnames) }
155
156  /* DWARF 1.1 and DWARF 2 */
157  .debug_aranges  0 : { *(.debug_aranges) }
158  .debug_pubnames 0 : { *(.debug_pubnames) }
159
160  /* DWARF 2 */
161  .debug_info     0 : { *(.debug_info) }
162  .debug_abbrev   0 : { *(.debug_abbrev) }
163  .debug_line     0 : { *(.debug_line) }
164  .debug_frame    0 : { *(.debug_frame) }
165  .debug_str      0 : { *(.debug_str) }
166  .debug_loc      0 : { *(.debug_loc) }
167  .debug_macinfo  0 : { *(.debug_macinfo) }
168  .debug_ranges   0 : { *(.debug_ranges) }
169
170  /* SGI/MIPS DWARF 2 extensions */
171  .debug_weaknames 0 : { *(.debug_weaknames) }
172  .debug_funcnames 0 : { *(.debug_funcnames) }
173  .debug_typenames 0 : { *(.debug_typenames) }
174  .debug_varnames  0 : { *(.debug_varnames) }
175
176  /* Special sections generated by gcc */
177  /* Newer GNU linkers strip by default */
178  .mdebug.abi32            0 : { KEEP(*(.mdebug.abi32)) }
179  .mdebug.abiN32           0 : { KEEP(*(.mdebug.abiN32)) }
180  .mdebug.abi64            0 : { KEEP(*(.mdebug.abi64)) }
181  .mdebug.abiO64           0 : { KEEP(*(.mdebug.abiO64)) }
182  .mdebug.eabi32           0 : { KEEP(*(.mdebug.eabi32)) }
183  .mdebug.eabi64           0 : { KEEP(*(.mdebug.eabi64)) }
184  .gcc_compiled_long32     0 : { KEEP(*(.gcc_compiled_long32)) }
185  .gcc_compiled_long64     0 : { KEEP(*(.gcc_compiled_long64)) }
186}
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