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Original file line number | Diff line number | Diff line change |
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/******************************************************************************* | ||
* Ledger Blue - Secure firmware | ||
* (c) 2016, 2017, 2018, 2019 Ledger | ||
* | ||
* 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. | ||
********************************************************************************/ | ||
|
||
/** | ||
* Global chip memory layout and constants | ||
* | ||
*/ | ||
|
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MEMORY | ||
{ | ||
DISCARD (rwx) : ORIGIN = 0xd0000000, LENGTH = 1M | ||
|
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FLASH (rx) : ORIGIN = 0xc0de0000, LENGTH = 400K | ||
DATA (r) : ORIGIN = 0xc0de0000, LENGTH = 400K | ||
SRAM (rwx) : ORIGIN = 0xda7a0000, LENGTH = 30K | ||
} | ||
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PAGE_SIZE = 256; | ||
STACK_SIZE = 8192; | ||
END_STACK = ORIGIN(SRAM) + LENGTH(SRAM); | ||
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ENTRY(main) | ||
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SECTIONS | ||
{ | ||
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/****************************************************************/ | ||
/* This section locates the code in FLASH */ | ||
/****************************************************************/ | ||
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/** put text in Flash memory, VMA will be equal to LMA */ | ||
.text : | ||
{ | ||
/* provide start code symbol, shall be zero */ | ||
_text = .; | ||
_nvram = .; | ||
PROVIDE(_nvram = . + ORIGIN(FLASH)); | ||
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PROVIDE(_setjmp = setjmp); /*thanks clang*/ | ||
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/* ensure main is always @ 0xC0D00000 */ | ||
*(.boot*) | ||
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/* place the other code and rodata defined BUT nvram variables that are displaced in a r/w area */ | ||
*(.text*) | ||
*(.rodata) | ||
*(.rodata.[^N]*) /*.data.rel.ro* not here to detect invalid PIC usage */ | ||
*(.rodata.N[^_]*) | ||
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. = ALIGN(4); | ||
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/* all code placed */ | ||
_etext = .; | ||
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. = ALIGN(PAGE_SIZE); | ||
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_nvram_data = .; | ||
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/* NVM data (ex-filesystem) */ | ||
*(.bss.N_* .rodata.N_*) | ||
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. = ALIGN(PAGE_SIZE); | ||
_envram_data = .; | ||
/* _nvram_data_size = _envram_data - _nvram_data; */ | ||
_install_parameters = .; | ||
PROVIDE(N_install_parameters = .); | ||
_envram = .; | ||
PROVIDE(_envram = . + ORIGIN(FLASH)); | ||
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} > FLASH = 0x00 | ||
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.data (NOLOAD): | ||
{ | ||
. = ALIGN(4); | ||
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/** | ||
* Place RAM initialized variables | ||
*/ | ||
_data = .; | ||
|
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*(vtable) | ||
*(.data*) | ||
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_edata = .; | ||
|
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} > DISCARD /*> SRAM AT>FLASH = 0x00 */ | ||
|
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.bss : | ||
{ | ||
/** | ||
* Place RAM uninitialized variables | ||
*/ | ||
_bss = .; | ||
*(.bss*) | ||
_ebss = .; | ||
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|
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/** | ||
* Reserve stack size | ||
*/ | ||
. = ALIGN(4); | ||
app_stack_canary = .; | ||
PROVIDE(app_stack_canary = .); | ||
. += 4; | ||
_stack_validation = .; | ||
. = _stack_validation + STACK_SIZE; | ||
_stack = ABSOLUTE(END_STACK) - STACK_SIZE; | ||
PROVIDE( _stack = ABSOLUTE(END_STACK) - STACK_SIZE); | ||
_estack = ABSOLUTE(END_STACK); | ||
PROVIDE( _estack = ABSOLUTE(END_STACK) ); | ||
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} > SRAM = 0x00 | ||
|
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/****************************************************************/ | ||
/* DEBUG */ | ||
/****************************************************************/ | ||
|
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/* remove the debugging information from the standard libraries */ | ||
DEBUG (NOLOAD) : | ||
{ | ||
libc.a ( * ) | ||
libm.a ( * ) | ||
libgcc.a ( * ) | ||
*(.ARM.exidx* .gnu.linkonce.armexidx.*) | ||
} > DISCARD | ||
|
||
/* 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 .gnu.linkonce.wi.*) } | ||
.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) } | ||
|
||
} |