diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/efi332/startup')
-rw-r--r-- | c/src/lib/libbsp/m68k/efi332/startup/Makefile.am | 12 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/efi332/startup/except_vect_332_ROM.S | 290 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/efi332/startup/linkcmds | 8 | ||||
-rw-r--r-- | c/src/lib/libbsp/m68k/efi332/startup/linkcmds_ROM | 211 |
4 files changed, 156 insertions, 365 deletions
diff --git a/c/src/lib/libbsp/m68k/efi332/startup/Makefile.am b/c/src/lib/libbsp/m68k/efi332/startup/Makefile.am index d8fa5fd721..30b383f156 100644 --- a/c/src/lib/libbsp/m68k/efi332/startup/Makefile.am +++ b/c/src/lib/libbsp/m68k/efi332/startup/Makefile.am @@ -12,7 +12,7 @@ C_FILES = bsplibc.c bsppost.c bspstart.c bspclean.c bootcard.c \ m68kpretaskinghook.c main.c sbrk.c setvec.c gnatinstallhandler.c C_O_FILES = $(C_FILES:%.c=$(ARCH)/%.o) -S_FILES = except_vect_332_ROM.S +S_FILES = S_O_FILES = $(S_FILES:%.S=$(ARCH)/%.o) OBJS = $(C_O_FILES) $(S_O_FILES) @@ -37,20 +37,14 @@ $(PROJECT_RELEASE)/lib/linkcmds: linkcmds $(PROJECT_RELEASE)/lib/linkcmds_ROM: linkcmds_ROM $(INSTALL_DATA) $< $@ -$(PROJECT_RELEASE)/lib/except_vect_332_ROM$(LIB_VARIANT).o: \ - $(ARCH)/except_vect_332_ROM.o - $(INSTALL_DATA) $< $@ - # the .rel file built here will be put into libbsp.a by ../wrapup/Makefile TMPINSTALL_FILES += $(PROJECT_RELEASE)/lib/linkcmds \ - $(PROJECT_RELEASE)/lib/linkcmds_ROM \ - $(PROJECT_RELEASE)/lib/except_vect_332_ROM$(LIB_VARIANT).o + $(PROJECT_RELEASE)/lib/linkcmds_ROM all-local: $(ARCH) $(OBJS) $(PGM) $(TMPINSTALL_FILES) .PRECIOUS: $(PGM) -EXTRA_DIST = bspclean.c bspstart.c except_vect_332_ROM.S linkcmds \ - linkcmds_ROM +EXTRA_DIST = bspclean.c bspstart.c linkcmds linkcmds_ROM include $(top_srcdir)/../../../../../../automake/local.am diff --git a/c/src/lib/libbsp/m68k/efi332/startup/except_vect_332_ROM.S b/c/src/lib/libbsp/m68k/efi332/startup/except_vect_332_ROM.S deleted file mode 100644 index 9eb2f20556..0000000000 --- a/c/src/lib/libbsp/m68k/efi332/startup/except_vect_332_ROM.S +++ /dev/null @@ -1,290 +0,0 @@ -/* - * $Id$ - */ - -/* Exception Vector definitions follow */ - - /* !!! Warning !!! This table is not tested, and - the user must make sure it is complete. */ - - /* If we use TRAP #15 for reboot, note that group 0 and 1 exceptions - will have priority. */ - - /* Vector 0: RESET: Initial SSP */ - .long _RamEnd - /* Vector 1: RESET: Initial PC */ - .long start - - /* default action for undefined vectors is to re-boot */ - - /* Note group 0 and 1 exception (like trace) have priority - over other exceptions (like trap #15) that may call this. */ - - /* Vectors 2-255 */ - .long reboot /* exception vector: 2 */ - .long reboot /* exception vector: 3 */ - .long reboot /* exception vector: 4 */ - .long reboot /* exception vector: 5 */ - .long reboot /* exception vector: 6 */ - .long reboot /* exception vector: 7 */ - .long reboot /* exception vector: 8 */ - .long reboot /* exception vector: 9 */ - .long reboot /* exception vector: 10 */ - .long reboot /* exception vector: 11 */ - .long reboot /* exception vector: 12 */ - .long reboot /* exception vector: 13 */ - .long reboot /* exception vector: 14 */ - .long reboot /* exception vector: 15 */ - .long reboot /* exception vector: 16 */ - .long reboot /* exception vector: 17 */ - .long reboot /* exception vector: 18 */ - .long reboot /* exception vector: 19 */ - .long reboot /* exception vector: 20 */ - .long reboot /* exception vector: 21 */ - .long reboot /* exception vector: 22 */ - .long reboot /* exception vector: 23 */ - .long reboot /* exception vector: 24 */ - .long reboot /* exception vector: 25 */ - .long reboot /* exception vector: 26 */ - .long reboot /* exception vector: 27 */ - .long reboot /* exception vector: 28 */ - .long reboot /* exception vector: 29 */ - .long reboot /* exception vector: 30 */ - .long reboot /* exception vector: 31 */ - .long reboot /* exception vector: 32 */ - .long reboot /* exception vector: 33 */ - .long reboot /* exception vector: 34 */ - .long reboot /* exception vector: 35 */ - .long reboot /* exception vector: 36 */ - .long reboot /* exception vector: 37 */ - .long reboot /* exception vector: 38 */ - .long reboot /* exception vector: 39 */ - .long reboot /* exception vector: 40 */ - .long reboot /* exception vector: 41 */ - .long reboot /* exception vector: 42 */ - .long reboot /* exception vector: 43 */ - .long reboot /* exception vector: 44 */ - .long reboot /* exception vector: 45 */ - .long reboot /* exception vector: 46 */ - .long _reboot /* the reboot trap: 47 */ - .long reboot /* exception vector: 48 */ - .long reboot /* exception vector: 49 */ - .long reboot /* exception vector: 50 */ - .long reboot /* exception vector: 51 */ - .long reboot /* exception vector: 52 */ - .long reboot /* exception vector: 53 */ - .long reboot /* exception vector: 54 */ - .long reboot /* exception vector: 55 */ - .long reboot /* exception vector: 56 */ - .long reboot /* exception vector: 57 */ - .long reboot /* exception vector: 58 */ - .long reboot /* exception vector: 59 */ - .long reboot /* exception vector: 60 */ - .long reboot /* exception vector: 61 */ - .long reboot /* exception vector: 62 */ - .long reboot /* exception vector: 63 */ - .long reboot /* exception vector: 64 */ - .long reboot /* exception vector: 65 */ - .long reboot /* exception vector: 66 */ - .long reboot /* exception vector: 67 */ - .long reboot /* exception vector: 68 */ - .long reboot /* exception vector: 69 */ - .long reboot /* exception vector: 70 */ - .long reboot /* exception vector: 71 */ - .long reboot /* exception vector: 72 */ - .long reboot /* exception vector: 73 */ - .long reboot /* exception vector: 74 */ - .long reboot /* exception vector: 75 */ - .long reboot /* exception vector: 76 */ - .long reboot /* exception vector: 77 */ - .long reboot /* exception vector: 78 */ - .long reboot /* exception vector: 79 */ - .long reboot /* exception vector: 80 */ - .long reboot /* exception vector: 81 */ - .long reboot /* exception vector: 82 */ - .long reboot /* exception vector: 83 */ - .long reboot /* exception vector: 84 */ - .long reboot /* exception vector: 85 */ - .long reboot /* exception vector: 86 */ - .long reboot /* exception vector: 87 */ - .long reboot /* exception vector: 88 */ - .long reboot /* exception vector: 89 */ - .long reboot /* exception vector: 90 */ - .long reboot /* exception vector: 91 */ - .long reboot /* exception vector: 92 */ - .long reboot /* exception vector: 93 */ - .long reboot /* exception vector: 94 */ - .long reboot /* exception vector: 95 */ - .long reboot /* exception vector: 96 */ - .long reboot /* exception vector: 97 */ - .long reboot /* exception vector: 98 */ - .long reboot /* exception vector: 99 */ - .long reboot /* exception vector: 100 */ - .long reboot /* exception vector: 101 */ - .long reboot /* exception vector: 102 */ - .long reboot /* exception vector: 103 */ - .long reboot /* exception vector: 104 */ - .long reboot /* exception vector: 105 */ - .long reboot /* exception vector: 106 */ - .long reboot /* exception vector: 107 */ - .long reboot /* exception vector: 108 */ - .long reboot /* exception vector: 109 */ - .long reboot /* exception vector: 110 */ - .long reboot /* exception vector: 111 */ - .long reboot /* exception vector: 112 */ - .long reboot /* exception vector: 113 */ - .long reboot /* exception vector: 114 */ - .long reboot /* exception vector: 115 */ - .long reboot /* exception vector: 116 */ - .long reboot /* exception vector: 117 */ - .long reboot /* exception vector: 118 */ - .long reboot /* exception vector: 119 */ - .long reboot /* exception vector: 120 */ - .long reboot /* exception vector: 121 */ - .long reboot /* exception vector: 122 */ - .long reboot /* exception vector: 123 */ - .long reboot /* exception vector: 124 */ - .long reboot /* exception vector: 125 */ - .long reboot /* exception vector: 126 */ - .long reboot /* exception vector: 127 */ - .long reboot /* exception vector: 128 */ - .long reboot /* exception vector: 129 */ - .long reboot /* exception vector: 130 */ - .long reboot /* exception vector: 131 */ - .long reboot /* exception vector: 132 */ - .long reboot /* exception vector: 133 */ - .long reboot /* exception vector: 134 */ - .long reboot /* exception vector: 135 */ - .long reboot /* exception vector: 136 */ - .long reboot /* exception vector: 137 */ - .long reboot /* exception vector: 138 */ - .long reboot /* exception vector: 139 */ - .long reboot /* exception vector: 140 */ - .long reboot /* exception vector: 141 */ - .long reboot /* exception vector: 142 */ - .long reboot /* exception vector: 143 */ - .long reboot /* exception vector: 144 */ - .long reboot /* exception vector: 145 */ - .long reboot /* exception vector: 146 */ - .long reboot /* exception vector: 147 */ - .long reboot /* exception vector: 148 */ - .long reboot /* exception vector: 149 */ - .long reboot /* exception vector: 150 */ - .long reboot /* exception vector: 151 */ - .long reboot /* exception vector: 152 */ - .long reboot /* exception vector: 153 */ - .long reboot /* exception vector: 154 */ - .long reboot /* exception vector: 155 */ - .long reboot /* exception vector: 156 */ - .long reboot /* exception vector: 157 */ - .long reboot /* exception vector: 158 */ - .long reboot /* exception vector: 159 */ - .long reboot /* exception vector: 160 */ - .long reboot /* exception vector: 161 */ - .long reboot /* exception vector: 162 */ - .long reboot /* exception vector: 163 */ - .long reboot /* exception vector: 164 */ - .long reboot /* exception vector: 165 */ - .long reboot /* exception vector: 166 */ - .long reboot /* exception vector: 167 */ - .long reboot /* exception vector: 168 */ - .long reboot /* exception vector: 169 */ - .long reboot /* exception vector: 170 */ - .long reboot /* exception vector: 171 */ - .long reboot /* exception vector: 172 */ - .long reboot /* exception vector: 173 */ - .long reboot /* exception vector: 174 */ - .long reboot /* exception vector: 175 */ - .long reboot /* exception vector: 176 */ - .long reboot /* exception vector: 177 */ - .long reboot /* exception vector: 178 */ - .long reboot /* exception vector: 179 */ - .long reboot /* exception vector: 180 */ - .long reboot /* exception vector: 181 */ - .long reboot /* exception vector: 182 */ - .long reboot /* exception vector: 183 */ - .long reboot /* exception vector: 184 */ - .long reboot /* exception vector: 185 */ - .long reboot /* exception vector: 186 */ - .long reboot /* exception vector: 187 */ - .long reboot /* exception vector: 188 */ - .long reboot /* exception vector: 189 */ - .long reboot /* exception vector: 190 */ - .long reboot /* exception vector: 191 */ - .long reboot /* exception vector: 192 */ - .long reboot /* exception vector: 193 */ - .long reboot /* exception vector: 194 */ - .long reboot /* exception vector: 195 */ - .long reboot /* exception vector: 196 */ - .long reboot /* exception vector: 197 */ - .long reboot /* exception vector: 198 */ - .long reboot /* exception vector: 199 */ - .long reboot /* exception vector: 200 */ - .long reboot /* exception vector: 201 */ - .long reboot /* exception vector: 202 */ - .long reboot /* exception vector: 203 */ - .long reboot /* exception vector: 204 */ - .long reboot /* exception vector: 205 */ - .long reboot /* exception vector: 206 */ - .long reboot /* exception vector: 207 */ - .long reboot /* exception vector: 208 */ - .long reboot /* exception vector: 209 */ - .long reboot /* exception vector: 210 */ - .long reboot /* exception vector: 211 */ - .long reboot /* exception vector: 212 */ - .long reboot /* exception vector: 213 */ - .long reboot /* exception vector: 214 */ - .long reboot /* exception vector: 215 */ - .long reboot /* exception vector: 216 */ - .long reboot /* exception vector: 217 */ - .long reboot /* exception vector: 218 */ - .long reboot /* exception vector: 219 */ - .long reboot /* exception vector: 220 */ - .long reboot /* exception vector: 221 */ - .long reboot /* exception vector: 222 */ - .long reboot /* exception vector: 223 */ - .long reboot /* exception vector: 224 */ - .long reboot /* exception vector: 225 */ - .long reboot /* exception vector: 226 */ - .long reboot /* exception vector: 227 */ - .long reboot /* exception vector: 228 */ - .long reboot /* exception vector: 229 */ - .long reboot /* exception vector: 230 */ - .long reboot /* exception vector: 231 */ - .long reboot /* exception vector: 232 */ - .long reboot /* exception vector: 233 */ - .long reboot /* exception vector: 234 */ - .long reboot /* exception vector: 235 */ - .long reboot /* exception vector: 236 */ - .long reboot /* exception vector: 237 */ - .long reboot /* exception vector: 238 */ - .long reboot /* exception vector: 239 */ - .long reboot /* exception vector: 240 */ - .long reboot /* exception vector: 241 */ - .long reboot /* exception vector: 242 */ - .long reboot /* exception vector: 243 */ - .long reboot /* exception vector: 244 */ - .long reboot /* exception vector: 245 */ - .long reboot /* exception vector: 246 */ - .long reboot /* exception vector: 247 */ - .long reboot /* exception vector: 248 */ - .long reboot /* exception vector: 249 */ - .long reboot /* exception vector: 250 */ - .long reboot /* exception vector: 251 */ - .long reboot /* exception vector: 252 */ - .long reboot /* exception vector: 253 */ - .long reboot /* exception vector: 254 */ - .long reboot /* exception vector: 255 */ - - -_reboot: - move #0x2700,%sr /* mask interrupts */ - movea.l (0x0).w,%a7 /* load stack */ - movea.l (0x4).w,%a0 /* jmp to location of reset vector */ - jmp (%a0) - -reboot: - trap #15 /* use trap exception to enter supervisor - state. Trace mode ( and other group 0 - and 1 exceptions) *could* screw this up if - not vectored to reboot or did not return. */ diff --git a/c/src/lib/libbsp/m68k/efi332/startup/linkcmds b/c/src/lib/libbsp/m68k/efi332/startup/linkcmds index 2750cdaef8..921073d180 100644 --- a/c/src/lib/libbsp/m68k/efi332/startup/linkcmds +++ b/c/src/lib/libbsp/m68k/efi332/startup/linkcmds @@ -9,6 +9,7 @@ __DYNAMIC = 0; /* * The memory map looks like this: * +--------------------+ <- low memory + * | _RamBase | * | .text | * | etext | * | ctor list | the ctor and dtor lists are for @@ -23,10 +24,11 @@ __DYNAMIC = 0; * | _clear_start| start of bss, cleared by crt0 * | _end | start of heap, used by sbrk() * +--------------------+ + * | _WorkspaceBase + * | work space | + * | heapStart | * | heap space | - * | _ENDHEAP | - * | stack space | - * | __stack | top of stack + * | _RamEnd | top of stack * +--------------------+ <- high memory */ diff --git a/c/src/lib/libbsp/m68k/efi332/startup/linkcmds_ROM b/c/src/lib/libbsp/m68k/efi332/startup/linkcmds_ROM index acfee4c07f..bdc7206975 100644 --- a/c/src/lib/libbsp/m68k/efi332/startup/linkcmds_ROM +++ b/c/src/lib/libbsp/m68k/efi332/startup/linkcmds_ROM @@ -8,6 +8,7 @@ STARTUP(except_vect_332_ROM.o) __DYNAMIC = 0; /* + * The memory map looks like this: * ROM: * +--------------------+ <- low memory * | .text | @@ -22,30 +23,38 @@ __DYNAMIC = 0; * * RAM: * +--------------------+ <- low memory + * | _RamBase | * | .data | initialized data goes here * | _sdata | * | _edata | * +--------------------+ * | .bss | - * | __bss_start | start of bss, cleared by crt0 + * | _clear_start| start of bss, cleared by crt0 * | _end | start of heap, used by sbrk() * +--------------------+ + * | _WorkspaceBase + * | work space | + * | heapStart | * | heap space | - * | _ENDHEAP | - * | stack space | - * | __stack | top of stack + * | _RamEnd | top of stack * +--------------------+ <- high memory */ +/* + * Declare some sizes. + */ +_RamBase = DEFINED(_RamBase) ? _RamBase : 0x80000; +_RamSize = DEFINED(_RamSize) ? _RamSize : 0x40000; +_RamEnd = _RamBase + _RamSize; +_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000; +_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000; + MEMORY { rom : ORIGIN = 0x00000, LENGTH = 256K - ram : ORIGIN = 0x80000, LENGTH = 512K + ram : ORIGIN = 0x80000, LENGTH = 256K } -_RamBase = DEFINED(_RamBase) ? _RamBase : 0x080000; - -__end_of_ram = 0x100000; _copy_data_from_rom = 1; /* @@ -53,69 +62,145 @@ _copy_data_from_rom = 1; */ SECTIONS { - .text : - { - CREATE_OBJECT_SYMBOLS - text_start = .; - _text_start = .; + ram : { + . = .; + } >ram + + /* + * Text, data and bss segments + */ + .text : { *(.text) - . = ALIGN (16); - *(.eh_fram) - . = ALIGN (16); + /* + * C++ constructors/destructors + */ + *(.gnu.linkonce.t.*) + + /* + * Initialization and finalization code. + * + * Various files can provide initialization and finalization + * functions. crtbegin.o and crtend.o are two instances. The + * body of these functions are in .init and .fini sections. We + * accumulate the bodies here, and prepend function prologues + * from crti.o and function epilogues from crtn.o. crti.o must + * be linked first; crtn.o must be linked last. Because these + * are wildcards, it doesn't matter if the user does not + * actually link against crti.o and crtn.o; the linker won't + * look for a file to match a wildcard. The wildcard also + * means that it doesn't matter which directory crti.o and + * crtn.o are in. + */ + PROVIDE (_init = .); + *crti.o(.init) + *(.init) + *crtn.o(.init) + PROVIDE (_fini = .); + *crti.o(.fini) + *(.fini) + *crtn.o(.fini) - etext = ALIGN(0x10); - _etext = .; - __CTOR_LIST__ = .; - LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + /* + * C++ constructors/destructors + * + * gcc uses crtbegin.o to find the start of the constructors + * and destructors 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. The + * constructor and destructor list are terminated in + * crtend.o. The same comments apply to it. + */ + . = ALIGN (16); + *crtbegin.o(.ctors) *(.ctors) - LONG(0) - __CTOR_END__ = .; - __DTOR_LIST__ = .; - LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *crtend.o(.ctors) + *crtbegin.o(.dtors) *(.dtors) - LONG(0) - __DTOR_END__ = .; - *(.lit) - *(.shdata) - _endtext = .; - } > rom - .gcc_exc : - AT ( ADDR(.text) + SIZEOF( .text ) ) - { - *(.gcc_exc) - } > ram + *crtend.o(.dtors) + + /* + * Exception frame info + */ + . = ALIGN (16); + *(.eh_frame) + + /* + * Read-only data + */ + . = ALIGN (16); + _rodata_start = . ; + *(.rodata) + *(.gnu.linkonce.r*) + + . = ALIGN (16); + PROVIDE (_etext = .); + } >rom .data : + AT ( ADDR(.text) + SIZEOF( .text ) ) { - data_start = .; - _data_start = .; - _sdata = . ; + PROVIDE (_copy_start = .); *(.data) - CONSTRUCTORS - edata = ALIGN(0x10); - _edata = .; - } > ram - .shbss : - { - *(.shbss) - } > ram - .bss : - { - __bss_start = ALIGN(0x8); - bss_start = .; - _bss_start = .; + *(.gnu.linkonce.d*) + *(.gcc_except_table) + . = ALIGN (16); + PROVIDE (_edata = .); + PROVIDE (_copy_end = .); + } >ram + .bss : { + _clear_start = .; *(.bss) *(COMMON) - end = .; - _end = ALIGN(0x8); - __end = ALIGN(0x8); - } > ram - .stab . (NOLOAD) : - { - [ .stab ] - } - .stabstr . (NOLOAD) : - { - [ .stabstr ] - } + . = ALIGN (16); + PROVIDE (end = .); + + . += _StackSize; + . = ALIGN (16); + _stack_init = .; + _clear_end = .; + + _WorkspaceBase = .; + } >ram + + /* Stabs debugging sections. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + .stab.excl 0 : { *(.stab.excl) } + .stab.exclstr 0 : { *(.stab.exclstr) } + .stab.index 0 : { *(.stab.index) } + .stab.indexstr 0 : { *(.stab.indexstr) } + .comment 0 : { *(.comment) } + + /* DWARF debug sections. + Symbols in the DWARF debugging sections are relative to the beginning + of the section so we begin them at 0. */ + /* DWARF 1 */ + .debug 0 : { *(.debug) } + .line 0 : { *(.line) } + + /* GNU DWARF 1 extensions */ + .debug_srcinfo 0 : { *(.debug_srcinfo) } + .debug_sfnames 0 : { *(.debug_sfnames) } + + /* DWARF 1.1 and DWARF 2 */ + .debug_aranges 0 : { *(.debug_aranges) } + .debug_pubnames 0 : { *(.debug_pubnames) } + + /* DWARF 2 */ + .debug_info 0 : { *(.debug_info) } + .debug_abbrev 0 : { *(.debug_abbrev) } + .debug_line 0 : { *(.debug_line) } + .debug_frame 0 : { *(.debug_frame) } + .debug_str 0 : { *(.debug_str) } + .debug_loc 0 : { *(.debug_loc) } + .debug_macinfo 0 : { *(.debug_macinfo) } + + /* SGI/MIPS DWARF 2 extensions */ + .debug_weaknames 0 : { *(.debug_weaknames) } + .debug_funcnames 0 : { *(.debug_funcnames) } + .debug_typenames 0 : { *(.debug_typenames) } + .debug_varnames 0 : { *(.debug_varnames) } + /* These must appear regardless of . */ } |