13.2 Contents
The map files produced by the linker consist of the following items.
| Item | Description |
|---|---|
| Tool Name and Command | Path and executable name of the linker, as well as command line options used. |
| Archive Members | The name of any members from archive files that are included in the link. |
| Memory Usage Report | The starting address and length of all output sections in program memory, data memory and dynamic memory. |
| External Symbol Tables | All external symbols in data and program memory. |
| Memory Configuration | All of the memory regions defined for the link. |
| Linker Script and Memory Map | Modules, sections and symbols that are included in the link as specified in the linker script. |
Map File
The following is an example of a linker map file for the MPLAB Discover project “DPSK3 Synchronous Buck Converter Voltage Mode Control.” Note that sections have been shortened to save space. The character “:” represents lines removed.
Tool Name and Command
Microchip Technology Inc, v3.00 (B)
Tool Name:
c:\program files\microchip\xc-dsc\v3.00\bin\bin\..\bin/elf-ld.exe
Command:
-p33CK256MP505 \
--mdfp=C:/Users/User/.mchp_packs/Microchip/dsPIC33CK-MP_DFP/1.5.135/xc-dsc \
-o \
dist/dpsk3_buck_vmc/production/dpsk_buck_vmc.X.production.elf \
-Lc:/program files/microchip/xc-dsc/v3.00/bin/bin/.. \
-LC:/Users/c08227/.mchp_packs/Microchip/dsPIC33CK-MP_DFP/1.5.135/xc-dsc/bin/../support/dsPIC33C/gld \
-Lc:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib \
-Lc:/program files/microchip/xc-dsc/v3.00/bin/bin/../../support/dsPIC30F/gld \
-Lc:/program files/microchip/xc-dsc/v3.00/bin/bin/../../support/dsPIC33C/gld \
-Lc:/program files/microchip/xc-dsc/v3.00/bin/bin/../../support/dsPIC33E/gld \
-Lc:/program files/microchip/xc-dsc/v3.00/bin/bin/../../support/dsPIC33F/gld \
build/dpsk3_buck_vmc/production/sources/common/p33c_pral/p33c_pwm.o \
build/dpsk3_buck_vmc/production/sources/common/p33c_pral/p33c_gpio.o \
build/dpsk3_buck_vmc/production/sources/common/p33c_pral/p33c_dsp.o \
:
build/dpsk3_buck_vmc/production/sources/push_button/app_push_button.o \
build/dpsk3_buck_vmc/production/sources/push_button/drivers/drv_push_button.o \
build/dpsk3_buck_vmc/production/sources/main.o \
--local-stack \
--preserve-all \
--defsym=__MPLAB_BUILD=1 \
-Tp33CK256MP505.gld.00 \
--stack=16 \
--check-sections \
--data-init \
--pack-data \
--handles \
--isr \
--gc-sections \
--fill-upper=0 \
--stackguard=16 \
--no-force-link \
--smart-io \
-Map=dist/dpsk3_buck_vmc/production/dpsk_buck_vmc.X.production.map \
--report-mem \
--memorysummary \
dist/dpsk3_buck_vmc/production/memoryfile.xml \
-start-group \
--library=c99-pic30-elf \
--library=m-elf \
--library=c99-elf \
-end-group \
Optional library libp33CK256MP505.a not foundArchive Members
Archive member included because of file (symbol)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(crt0_extendedch.o)
(__resetPRI)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(data_init_extendedch.o)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(crt0_extendedch.o) (__data_init_extended)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(crt_start_mode_normalch.Meo)
(__crt_start_mode_normal)
:
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(fixdfsi.CH_o) (__dunpack2exit)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(dpropagateNaN.CH_o)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(dunpack2.CH_o) (__dPropagateNaN)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libm-elf.a(floorl.CH_o)
c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-elf.a(__fmt_fp.CH_o) (_floorl)Memory Usage Report
Selected CodeGuard Options:
FSEC:BWRP:OFF
FSEC:BSS:DISABLED
FSEC:BSEN:OFF
FSEC:GWRP:OFF
FSEC:GSS:DISABLED
FSEC:CWRP:OFF
FSEC:CSS:DISABLED
FSEC:AIVTDIS:OFF
CodeGuard FLASH Memory:
boot (none)
secure (none)
general 0x200 to 0x2befe
CodeGuard RAM Memory:
general 0x1000 to 0x6fff
secure (none)
boot (none)
xc-dsc-ld 3.00 (B)
Default Code Model: Small
Default Data Model: Large
Default Scalar Model: Small
"program" Memory [Origin = 0x200, Length = 0x2bd00]
section address length (PC units) length (bytes) (dec)
------- ------- ----------------- --------------------
.text 0x200 0x2240 0x3360 (13152)
.const 0x2440 0xe0 0x150 (336)
.text 0x2520 0x2928 0x3dbc (15804)
.dinit 0x4e48 0x1a0 0x270 (624)
.text 0x4fe8 0xdec 0x14e2 (5346)
.init.delay32 0x5dd4 0x1c 0x2a (42)
.text 0x5df0 0x14 0x1e (30)
Total "program" memory used (bytes): 0x8a06 (35334) 13%
"data" Memory [Origin = 0x1000, Length = 0x6000]
section address alignment gaps total length (dec)
------- ------- -------------- -------------------
.nbss 0x1000 0 0x240 (576)
.ndata 0x1240 0 0x92 (146)
.nbss 0x12d2 0 0x30 (48)
.ndata 0x1302 0 0x2a (42)
_0000000007F9C78064cc3b02 0x132c 0 0x24 (36)
.ndata 0x1350 0 0x30 (48)
.nbss 0x1380 0 0x16 (22)
_00000000078D6F0064cc3b00 0x1396 0 0x16 (22)
.ndata 0x13ac 0 0xe (14)
.nbss 0x13ba 0 0xe (14)
.ndata 0x13c8 0 0xc (12)
.nbss 0x13d4 0 0xa (10)
.ndata 0x13de 0 0x8 (8)
.nbss 0x13e6 0 0x12 (18)
.ndata 0x13f8 0 0x4 (4)
.nbss 0x13fc 0 0xc (12)
.ndata 0x1408 0 0x4 (4)
.nbss 0x140c 0 0x4 (4)
.data 0x1410 0 0x2e (46)
.bss 0x143e 0 0x2 (2)
.ybss 0x6fee 0 0x12 (18)
Total "data" memory used (bytes): 0x452 (1106) 4%
Dynamic Memory Usage
region address maximum length (dec)
------ ------- ---------------------
heap 0 0 (0)
stack 0x1440 0x5bae (23470)
Maximum dynamic memory (bytes): 0x5bae (23470)External Symbol Tables
External Symbols in Data Memory (by address):
0x1000 __isns_sample_count
0x1002 _buck
0x10ec _isns_samples
:
0x140c _LOW_PRIORITY_GO
0x143e ___errno_val
0x6fee _v_loop_histories
External Symbols in Data Memory (by name):
0x13c8 _BuckConverterRampUpSubStateMachine
0x1408 _BuckConverterSpecialFunctions
0x13ac _BuckConverterStateMachine
:
0x12cc _v_loop_pre_scaler
0x12ce _v_loop_pterm_factor
0x12d0 _v_loop_pterm_scaler
External Symbols in Program Memory (by address):
0x000200 __resetPRI
0x00023c __psv_init
0x000248 __data_init_extended
:
0x005dd4 ___delay32
0x005df0 _sysGpio_Initialize
0x02bf00 __FSEC.sec
External Symbols in Program Memory (by name):
0x0052a4 _CurrentSenseOffsetCalibration
0x005d3c _DefaultTrapHandler
0x0058c2 _SYSTEM_Initialize
:
0x0050cc _v_loop_Precharge
0x0050ac _v_loop_Reset
0x004fe8 _v_loop_UpdateMemory Configuration
Memory Configuration
Name Origin Length Attributes
data 0x001000 0x006000 a !xr
FBOOT 0x801800 0x000002
reset 0x000000 0x000004
ivt 0x000004 0x0001fc
program 0x000200 0x02bd00 xr
FSEC 0x02bf00 0x000002
FBSLIM 0x02bf10 0x000002
FSIGN 0x02bf14 0x000002
FOSCSEL 0x02bf18 0x000002
FOSC 0x02bf1c 0x000002
FWDT 0x02bf20 0x000002
FPOR 0x02bf24 0x000002
FICD 0x02bf28 0x000002
FDMTIVTL 0x02bf2c 0x000002
FDMTIVTH 0x02bf30 0x000002
FDMTCNTL 0x02bf34 0x000002
FDMTCNTH 0x02bf38 0x000002
FDMT 0x02bf3c 0x000002
FDEVOPT 0x02bf40 0x000002
FALTREG 0x02bf44 0x000002
FBTSEQ 0x02bffc 0x000002
*default* 0x000000 0xffffffff Linker Script and Memory Map
Linker script and memory map
LOAD build/dpsk3_buck_vmc/production/sources/common/p33c_pral/p33c_pwm.o
LOAD build/dpsk3_buck_vmc/production/sources/common/p33c_pral/p33c_gpio.o
LOAD build/dpsk3_buck_vmc/production/sources/common/p33c_pral/p33c_dsp.o
:
LOAD build/dpsk3_buck_vmc/production/sources/main.o
0x0001 __MPLAB_BUILD = 0x1
LOAD p33CK256MP505
LOAD c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libfx-elf.a
0x801034 _iwri1 = 0x801034
0x801038 _iwri2 = 0x801038
0x801800 __FBOOT = 0x801800
0x2bf00 __FSEC = 0x2bf00
0x2bf10 __FBSLIM = 0x2bf10
0x2bf14 __FSIGN = 0x2bf14
0x2bf18 __FOSCSEL = 0x2bf18
0x2bf1c __FOSC = 0x2bf1c
0x2bf20 __FWDT = 0x2bf20
0x2bf24 __FPOR = 0x2bf24
0x2bf28 __FICD = 0x2bf28
0x2bf2c __FDMTIVTL = 0x2bf2c
0x2bf30 __FDMTIVTH = 0x2bf30
0x2bf34 __FDMTCNTL = 0x2bf34
0x2bf38 __FDMTCNTH = 0x2bf38
0x2bf3c __FDMT = 0x2bf3c
0x2bf40 __FDEVOPT = 0x2bf40
0x2bf44 __FALTREG = 0x2bf44
0x2bffc __FBTSEQ = 0x2bffc
0x0200 __CODE_BASE = 0x200
0x2bd00 __CODE_LENGTH = 0x2bd00
0x0004 __IVT_BASE = 0x4
0x1000 __DATA_BASE = 0x1000
0x6000 __DATA_LENGTH = 0x6000
0x5000 __YDATA_BASE = 0x5000
.reset 0x000000 0x4
0x000000 0x2 SHORT 0x200 ABSOLUTE (__reset)
0x000001 0x2 SHORT 0x4
0x000002 0x2 SHORT 0x0 ((ABSOLUTE (__reset) >> 0x10) & 0x7f)
0x000003 0x2 SHORT 0x0
.text 0x000200 0x2240
*(.init)
.init 0x000200 0x48 c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(crt0_extendedch.o)
0x000200 __resetPRI
0x000200 __reset
0x00023c __psv_init
.init 0x000248 0xb2 c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(data_init_extendedch.o)
0x000248 __data_init
0x000248 __data_init_extended
*(.user_init)
*(.handle)
.handle 0x0002fa 0x50 jump_table
*(.isr*)
.isr.text 0x00034a 0xd0 build/dpsk3_buck_vmc/production/sources/fault_handler/drivers/drv_trap_handler.o
0x00034a __ReservedTrap5
0x000364 __ReservedTrap7
0x00037e __HardTrapError
:
.init.delay32 0x005dd4 0x1c
.init.delay32 0x005dd4 0x1c c:/program files/microchip/xc-dsc/v3.00/bin/bin/../../lib\libc99-pic30-elf.a(delay32ch.Meo)
0x005dd4 ___delay32
.text 0x005df0 0x14
.text 0x005df0 0x14 build/dpsk3_buck_vmc/production/sources/config/init/init_gpio.o
0x005df0 _sysGpio_Initialize