| |
| /* Copyright 2021 The TensorFlow Authors. All Rights Reserved. |
| |
| Licensed under the Apache License, Version 2.0 (the "License"); |
| you may not use this file except in compliance with the License. |
| You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| ==============================================================================*/ |
| |
| OUTPUT(a.elf) |
| |
| /* By default, program starts from reset address (the default location of the interrupt table) */ |
| ENTRY(__cxd_inttbl_start) |
| |
| /** Memory configuration parameters. |
| * The parameters become application symbols and can be referred from application |
| */ |
| __internal_code_start = DEFINED(__internal_code_start) ? __internal_code_start : 0x00000000; |
| __internal_code_size = DEFINED(__internal_code_size ) ? __internal_code_size : 256k; |
| __internal_data_start = DEFINED(__internal_data_start) ? __internal_data_start : 0x00000000; |
| __internal_data_size = DEFINED(__internal_data_size ) ? __internal_data_size : 512k; |
| __external_start = DEFINED(__external_start ) ? __external_start : 0x40000000; |
| __external_size = DEFINED(__external_size ) ? __external_size : 0x40000000; |
| __rom_start = DEFINED(__rom_start ) ? __rom_start : 0xC0000000; |
| __rom_size = DEFINED(__rom_size ) ? __rom_size : 1024M; |
| |
| __malloc_size = DEFINED(__malloc_size ) ? __malloc_size : 32k; |
| __stack_size = DEFINED(__stack_size ) ? __stack_size : 32k; |
| __arg_sect_size = DEFINED(__arg_sect_size ) ? __arg_sect_size : 512; |
| |
| MEMORY { |
| INTERNAL_CODE (rx) : ORIGIN = __internal_code_start, LENGTH = __internal_code_size |
| INTERNAL_DATA (rw) : ORIGIN = __internal_data_start, LENGTH = __internal_data_size |
| EXTERNAL (rwx) : ORIGIN = __external_start , LENGTH = __external_size |
| ROM (rx) : ORIGIN = __rom_start , LENGTH = __rom_size |
| } |
| |
| SECTIONS { |
| .inttbl : ALIGN(0x20) { |
| /** The interrupt vector table. Contains the NMI |
| * and maskable interrupt handlers |
| */ |
| . = 0x0; |
| KEEP(*(.inttbl)) |
| . = ALIGN(0x20); |
| KEEP(*(.sinttbl)) |
| } >INTERNAL_CODE |
| |
| .data.internal : ALIGN(0x20) { |
| PROVIDE(__data_internal_start = ABSOLUTE(.)); |
| /* Don't map any data at address zero to avoid issues with C NULL |
| * pointer checks |
| */ |
| . += 0x4; |
| |
| PROVIDE(__data_start = ABSOLUTE(.)); |
| *(.data .data.*) |
| PROVIDE(__data_end = ABSOLUTE(.)); |
| PROVIDE(__data_size = ABSOLUTE(+__data_end - __data_start)); |
| |
| PROVIDE(__sdata_start = ABSOLUTE(.)); |
| *(.sdata .sdata.*) |
| PROVIDE(__sdata_end = ABSOLUTE(.)); |
| PROVIDE(__sdata_size = ABSOLUTE(+__sdata_end - __sdata_start)); |
| |
| PROVIDE(__data_internal_end = ABSOLUTE(.)); |
| PROVIDE(__data_internal_size = ABSOLUTE(__data_internal_end - __data_internal_start)); |
| } >INTERNAL_DATA |
| |
| .data.internal.clone (NOLOAD) : ALIGN(0x20) { |
| PROVIDE(__data_internal_clone_start = ABSOLUTE(.)); |
| . = ABSOLUTE(. + __data_internal_size); |
| } >INTERNAL_DATA |
| |
| .data.internal.ro : ALIGN(0x20) { |
| PROVIDE(__data_internal_ro_start = ABSOLUTE(.)); |
| PROVIDE(__rodata_start = ABSOLUTE(.)); |
| *(.rodata .rodata.*) |
| PROVIDE(__rodata_end = ABSOLUTE(.)); |
| PROVIDE(__rodata_size = ABSOLUTE(+__rodata_end - __rodata_start)); |
| |
| PROVIDE(__data_internal_ro_end = ABSOLUTE(.)); |
| PROVIDE(__data_internal_ro_size = ABSOLUTE(__data_internal_ro_end - __data_internal_ro_start)); |
| } >INTERNAL_DATA |
| |
| .cst.call : ALIGN(4) { |
| PROVIDE(__cst_call_start = ABSOLUTE(.)); |
| *(.cst.call) |
| PROVIDE(__cst_call_end = ABSOLUTE(.)); |
| } >INTERNAL_DATA |
| |
| .cst.mov : ALIGN(4) { |
| PROVIDE(__cst_mov_start = ABSOLUTE(.)); |
| *(.cst.mov) |
| PROVIDE(__cst_mov_end = ABSOLUTE(.)); |
| } >INTERNAL_DATA |
| |
| .bss (NOLOAD) : ALIGN(0x20) { |
| PROVIDE(__bss_start = ABSOLUTE(.)); |
| *(.bss .bss.*) |
| PROVIDE(__common_start = ABSOLUTE(.)); |
| *(COMMON) |
| PROVIDE(__common_end = ABSOLUTE(.)); |
| PROVIDE(__common_size = ABSOLUTE(+__common_end - __common_start)); |
| PROVIDE(__bss_end = ABSOLUTE(.)); |
| PROVIDE(__bss_size = ABSOLUTE(+__bss_end - __bss_start)); |
| } >INTERNAL_DATA |
| |
| __STACK_SECT (NOLOAD) : ALIGN(0x10) { |
| __stack_start = ABSOLUTE(.); |
| . = . + __stack_size; |
| __stack_end = ABSOLUTE(.); |
| } >INTERNAL_DATA |
| |
| .text : ALIGN(0x20) { |
| PROVIDE(__text_start = ABSOLUTE(.)); |
| /* The __call_saved* functions need to be placed at low addresses for |
| * calling with absolute call instructions |
| */ |
| *(.text.__call_saved*) |
| *(.text .text.*) |
| PROVIDE(__text_end = ABSOLUTE(.)); |
| } >EXTERNAL |
| |
| .data.external : ALIGN(0x20) { |
| /** .data1, .rodata1, .sdata1 are all for large symbols which cannot |
| * fit in limited internal memory. We put them in external memory by |
| * default. */ |
| PROVIDE(__data_external_start = ABSOLUTE(.)); |
| |
| PROVIDE(__data1_start = ABSOLUTE(.)); |
| *(.data1 .data1.*) |
| PROVIDE(__data1_end = ABSOLUTE(.)); |
| |
| PROVIDE(__sdata1_start = ABSOLUTE(.)); |
| *(.sdata1 .sdata1.*) |
| PROVIDE(__sdata1_end = ABSOLUTE(.)); |
| PROVIDE(__sdata1_size = ABSOLUTE(+__sdata1_end - __sdata1_start)); |
| |
| PROVIDE(__data_external_end = ABSOLUTE(.)); |
| PROVIDE(__data_external_size = ABSOLUTE(__data_external_end - __data_external_start)); |
| } >EXTERNAL |
| |
| .data.external.clone (NOLOAD) : ALIGN(0x20) { |
| PROVIDE(__data_external_clone_start = ABSOLUTE(.)); |
| . = ABSOLUTE(. + __data_external_size); |
| } >EXTERNAL |
| |
| .data.external.ro : ALIGN(0x20) { |
| /** .data1, .rodata1, .sdata1 are all for large symbols which cannot |
| * fit in limited internal memory. We put them in external memory by |
| * default. */ |
| PROVIDE(__data_external_ro_start = ABSOLUTE(.)); |
| |
| PROVIDE(__rodata1_start = ABSOLUTE(.)); |
| *(.rodata1 .rodata1.*) |
| PROVIDE(__rodata1_end = ABSOLUTE(.)); |
| PROVIDE(__rodata1_size = ABSOLUTE(+__rodata1_end - __rodata1_start)); |
| |
| /* Constructors and destructors are called once per program invocation, |
| * so are never in the hot path; they shouldn't waste space in limited |
| * internal memory so we place them in slower, external memory */ |
| |
| . = ALIGN(4); /* constructors must be aligned on a word boundary */ |
| PROVIDE(__init_array_start = ABSOLUTE(.)); |
| KEEP(*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))); |
| KEEP(*(SORT_BY_INIT_PRIORITY(.init_array*) SORT_BY_INIT_PRIORITY(.ctors*))); |
| PROVIDE(__init_array_end = ABSOLUTE(.)); |
| |
| PROVIDE(__fini_array_start = ABSOLUTE(.)); |
| /* destructors are run in reverse order of their priority */ |
| KEEP(*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))); |
| KEEP(*(SORT_BY_INIT_PRIORITY(.fini_array*) SORT_BY_INIT_PRIORITY(.dtors*))); |
| PROVIDE(__fini_array_end = ABSOLUTE(.)); |
| |
| PROVIDE(__data_external_ro_end = ABSOLUTE(.)); |
| PROVIDE(__data_external_ro_size = ABSOLUTE(__data_external_ro_end - __data_external_ro_start)); |
| } >EXTERNAL |
| |
| .bss1 (NOLOAD) : ALIGN(0x20) { |
| /** |
| * `.bss1` is for large zero-initialized symbols that do not fit in |
| * internal data |
| */ |
| PROVIDE(__bss1_start = ABSOLUTE(.)); |
| *(.bss1 .bss1.*) |
| PROVIDE(__large_common_start = ABSOLUTE(.)); |
| *(LARGE_COMMON) |
| PROVIDE(__large_common_end = ABSOLUTE(.)); |
| PROVIDE(__large_common_size = ABSOLUTE(+__large_common_end - __large_common_start)); |
| PROVIDE(__bss1_end = ABSOLUTE(.)); |
| PROVIDE(__bss1_size = ABSOLUTE(+__bss1_end - __bss1_start)); |
| } >EXTERNAL |
| |
| /* Program arguments are loaded by `_start` routine from `__arg_sect_start`. |
| * When the user has set a zero size for the section, argc, and argv |
| * will be zero and NULL, respectively. |
| * Although likely small, they are on the slow path so by default they |
| * go at the end of external memory |
| */ |
| __ARG_SECT (NOLOAD) : ALIGN(0x4) { |
| __arg_sect_start = .; |
| . = . + (__arg_sect_size ? __arg_sect_size + 4 : 0); |
| __arg_sect_end = .; |
| } >EXTERNAL |
| |
| __MALLOC_SECT (NOLOAD) : ALIGN(0x10) { |
| PROVIDE(__malloc_start = ABSOLUTE(.)); |
| . = . + __malloc_size; |
| PROVIDE(__malloc_end = ABSOLUTE(.)); |
| } >EXTERNAL |
| |
| data_internal_loadable_addr = __data_internal_clone_start; |
| data_external_loadable_addr = __data_external_clone_start; |
| |
| /DISCARD/ : { |
| /* Note: The CEVA Debugger and Restriction Checker use information |
| * stored in the ".note.CEVA-arch" section. Do NOT discard this section |
| * for projects in development phase. This section has no effect on the |
| * applications footprint */ |
| *(.comment) |
| *(.note.GNU-stack) |
| /* The X-DSP ABI uses a custom relocation format stored in its own |
| * section. These are left in the binary by default but are unneeded. */ |
| *(.ceva_reloc) |
| } |
| |
| } |
