$ cd target/riscv32i-unknown-none-elf/release/
$ ls -lh r-riscv-blink{,.bin}
-rwxr-xr-x 2 foo bar 456K Jul 25 16:08 r-riscv-blink
-rwxr-xr-x 1 foo bar 257M Jul 25 16:08 r-riscv-blink.bin

$ readelf -S r-riscv-blink
There are 23 section headers, starting at offset 0x71c18:

Section Headers:
  [Nr] Name              Type            Addr     Off    Size   ES Flg Lk Inf Al
  [ 0]                   NULL            00000000 000000 000000 00      0   0  0
  [ 1] .text.dummy       PROGBITS        20000000 0000d4 040000 00   A  0   0  1
  [ 2] .text             PROGBITS        20040000 041000 000a14 00  AX  0   0  4
  [ 3] .rodata           PROGBITS        20040a14 041a14 000054 00   A  0   0  4
  [ 4] .data             PROGBITS        10000000 042000 000000 00   A  0   0  4
  [ 5] .bss              NOBITS          10000000 042000 000004 00  WA  0   0  1
  [ 6] .heap             PROGBITS        10000004 042000 000000 00  WA  0   0  1
  [ 7] .stack            PROGBITS        10000004 042000 01fffc 00  WA  0   0  1
  [ 8] .debug_line       PROGBITS        00000000 061ffc 0017e2 00      0   0  1
  [ 9] .debug_info       PROGBITS        00000000 0637de 00380b 00      0   0  1
  [10] .debug_abbrev     PROGBITS        00000000 066fe9 00051e 00      0   0  1
  [11] .debug_aranges    PROGBITS        00000000 067508 000030 00      0   0  8
  [12] .debug_str        PROGBITS        00000000 067538 003c21 01  MS  0   0  1
  [13] .debug_ranges     PROGBITS        00000000 06b160 0005f0 00      0   0  8
  [14] .riscv.attributes RISCV_ATTRIBUTE 00000000 06b750 00001a 00      0   0  1
  [15] .debug_loc        PROGBITS        00000000 06b76a 001362 00      0   0  1
  [16] .debug_pubnames   PROGBITS        00000000 06cacc 001267 00      0   0  1
  [17] .debug_pubtypes   PROGBITS        00000000 06dd33 0011c9 00      0   0  1
  [18] .debug_frame      PROGBITS        00000000 06eefc 000220 00      0   0  4
  [19] .comment          PROGBITS        00000000 06f11c 000013 01  MS  0   0  1
  [20] .symtab           SYMTAB          00000000 06f130 0023a0 10     22 527  4
  [21] .shstrtab         STRTAB          00000000 0714d0 0000ee 00      0   0  1
  [22] .strtab           STRTAB          00000000 0715be 00065a 00      0   0  1
Key to Flags:
  W (write), A (alloc), X (execute), M (merge), S (strings), I (info),
  L (link order), O (extra OS processing required), G (group), T (TLS),
  C (compressed), x (unknown), o (OS specific), E (exclude),
  p (processor specific)

$ riscv64-unknown-elf-objcopy -O binary -R .stack r-riscv-blink r-riscv-blink.bin
$ ls -lh r-riscv-blink{,.bin}
-rwxr-xr-x 2 tom tom 456K Jul 25 16:08 r-riscv-blink*
-rwxr-xr-x 1 tom tom 259K Jul 25 16:22 r-riscv-blink.bin*

$ riscv64-unknown-elf-objcopy --version
GNU objcopy (GNU Binutils) 2.34
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.

pdp7@x1:~/dev/fpga/icebreaker-litex-examples/c-riscv-blink$ wishbone-tool --uart /dev/ttyUSB1 -s terminal
error: 'terminal' isn't a valid value for '--server <server-kind>'
	[possible values: gdb, random-test, wishbone]


USAGE:
    wishbone-tool <address> --baud <RATE> --bind-addr <IP_ADDRESS> --list --pid <USB_PID> --port <PORT_NUMBER> --serial <PORT> --server <server-kind>

*pdp7@x1:~/dev/fpga/icebreaker-litex-examples/c-riscv-blink$ which wishbone-tool 
/home/pdp7/bin/wishbone-tool
pdp7@x1:~/dev/fpga/icebreaker-litex-examples/c-riscv-blink$ wishbone-tool --version
Wishbone Tool 0.4.7
pdp7@x1:~/dev/fpga/icebreaker-litex-examples/c-riscv-blink$ wishbone-tool --help
Wishbone Tool 0.4.7
Sean Cross <[email protected]>
Work with Wishbone devices over various bridges

USAGE:
    wishbone-tool [FLAGS] [OPTIONS] <address> --list --server <server-kind> [value]

FLAGS:
    -l, --list       List USB devices in the system
    -h, --help       Prints help information
    -V, --version    Prints version information

OPTIONS:
    -s, --server <server-kind>
            which server to run (if any) [possible values: gdb, wishbone, random-test]

    -a, --bind-addr <IP_ADDRESS>                 IP address to bind to [default: 127.0.0.1]
    -n, --port <PORT_NUMBER>                     port number to listen on [default: 1234]
    -p, --pid <USB_PID>                          USB PID to match [default: 0x5bf0]
    -v, --vid <USB_VID>                          USB VID to match
    -u, --serial <PORT>                          Serial port to use
    -b, --baud <RATE>                            Baudrate to use in serial mode [default: 115200]
    -g, --spi-pins <spi-pins>                    GPIO pins to use for MISO,MOSI,CLK,CS_N (e.g. 2,3,4,18)
        --csr-csv <csr-csv>                      csr.csv file containing register mappings
        --messible-address <messible-address>    address to use to get messible messages from
        --random-loops <random-loops>            number of loops to run when doing a random-test
        --random-address <random-address>        address to write to when doing a random-test
        --debug-offset <debug-offset>            

ARGS:
    <address>    address to read/write
    <value>      value to write

[submodule "litex/soc/software/compiler_rt"]
	path = litex/soc/software/compiler_rt
	url = https://git.llvm.org/git/compiler-rt

Warning: multiple conflicting drivers for icebreaker.\sys_rst:
    port O[0] of cell sys_rst_SB_LUT4_O (SB_LUT4)
    port Q[0] of cell SB_DFFS_1 (SB_DFFS)
ERROR: Net 'sys_rst' is multiply driven by cell ports SB_DFFS_1.Q and sys_rst_SB_LUT4_O.O
0 warnings, 1 error
Traceback (most recent call last):
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/icebreaker.py", line 243, in <module>
    main()
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/icebreaker.py", line 234, in main
    builder.build()
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/deps/litex/litex/soc/integration/builder.py", line 217, in build
    vns = self.soc.build(build_dir=self.gateware_dir, **kwargs)
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/deps/litex/litex/soc/integration/soc.py", line 1075, in build
    return self.platform.build(self, *args, **kwargs)
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/deps/litex/litex/build/lattice/platform.py", line 41, in build
    return self.toolchain.build(self, *args, **kwargs)
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/deps/litex/litex/build/lattice/icestorm.py", line 211, in build
    _run_script(script)
  File "/home/___/Projects/Icebreaker/icebreaker-litex-examples/soc/deps/litex/litex/build/lattice/icestorm.py", line 142, in _run_script
    raise OSError("Error occured during Yosys/Nextpnr's script execution.")
OSError: Error occured during Yosys/Nextpnr's script execution.