Category Archives: Notes

Today was Spring cleaning day

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I had to get new batteries in four of my UPS devices which involved a lot of plugging and unplugging. Since I was down there under my desk I took some time to vacuum and do a better job of my cable labeling.

While I was sorting cables I found one with a frayed end which I decided to keep for spare parts. In makes me nervous just looking at this thing. That’s a mains power lead with bare ends, it’s a death sentence waiting to happen! But that bit of cable with that attachment might very well come in handy some time so I will file it in its relevant drawer.

John's mains power cable with bare ends

Homework

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This is a part of the homework feature of my blog, which is an ongoing conversation with my mate S.F.

Hey mate. Lovely to see you again, as always.

I ended up getting these cards printed at clickmedia.com.au to take with me on Wednesday to ElectroneX:

John's business card for In The Lab With Jay

I mentioned Iain McGilchrist, he’s a psychiatrist who dabbles in philosophy. I think he has a really excellent and interesting view of things. It’s hard to summarise his position but he is very interested in the difference in perceptive capabilities of the left and right hemispheres of the brain. He has a YouTube channel over here: @DrIainMcGilchrist and if you search for him you will find many a fascinating interview.

You told me to check out Succession (TV series).

I found the Four Corners video you mentioned, over here: Self-defence or genocide? Asking Israel’s powerful voices about Gaza | Four Corners.

I mentioned Eben Moglen, who has a website over here: moglen.law.columbia.edu. I find Eben inspirational. He’s always talking in grandiose eloquence about the importance of free software, if you search for him on YouTube you are bound to find something of interest.

I mentioned Annie Jacobsen, she’s a pretty interesting cat. She has written a number of books on conspiracy-theory-like topics. I recently read her book Nuclear War: A Scenario.

I have a note here that says “positive view on nihilism” but I forget what that was about. Something I wanted to tell you, now lost to time. But searching for ‘positive view on nihilism’ turns up a bunch of interesting results! (Oh. Wait. Found it! It’s a video I wanted you to see: Optimistic Nihilism.)

Oh, another note I don’t remember: “void of ‘huh'”. I assume we were being hilarious.

There is an urban myth that the first human projectile that made it into space was a manhole cover from nuclear testing facilities for Operation Plumbbob in 1957. I dunno if it’s true, but it’s a good story!

Announcing new website for In The Lab With Jay Jay

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Good news everyone!

The In The Lab With Jay Jay website has been freeloading off jj5.net for a while now, over here: https://www.inthelabwithjayjay.com/in-the-lab/

But I am pleased to announce that it has now been moved into its new and permanent home, over here: InTheLabWithJayJay.com

There is also a short-link domain which will redirect you to the new site which I put into production to keep the links on my business cards short: jjlab.net

Speaking of business cards I had some made to take with me to ElectroneX on Wednesday:

John's new business card for In The Lab With Jay Jay

I’m planning to show up in costume and hand out business cards, because I am a *genuine* nerd.

As part of the migration to the new domain I improved the content of the site a bit. There is now an about page with contact info and such and also a support the show page with some ideas about how people can support the show!

Channel News #3: Announcing Mini Projects | Learning Electronics In The Lab With Jay Jay

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This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.

You can support this channel on Patreon: patreon.com/JohnElliotV

Silly Job Title: Amp Alchemist

In this video I announce the new Mini Projects. These are a new feature of Silicon Chip magazine sponsored by Jaycar. Each month two or three Mini Projects get published in Silicon Chip, and we will be building those projects together on the channel each month!

If you’re interested in Silicon Chip magazine (it’s really good!) then I would certainly encourage you to subscribe.

In this video I misspoke and said this was the “May 2004” issue of the magazine, but of course it is the “May 2024” issue of the magazine! Unfortunately I missed that errata during editing and didn’t include a title clip correction.

I don’t understand what happened that caused that video corruption we saw earlier in the video. I suspect the workstation I was using to record the video had some other processing task which interfered with its recording speed or something? Hopefully this is not an ongoing problem. It’s not a problem I have seen before.

Update: ElectroneX has now been and gone and my write up about the day is over here: My day at ElectroneX with my friend. I got my photo with Dave Jones!

Thanks very much for watching! And please remember to hit like and subscribe!

Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!

Kaisi Soldering Tools With Desoldering PumpThis is an image of the product.notes

Let’s go shopping!

Fixing compile_commands.json for VS Code and Linux kernel sources

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I have my Linux kernel sources setup like this:

-------------------
Fri Jun 14 00:35:24 [bash:5.2.15 jobs:0 error:0 time:2449]
jj5@virtuoso:/home/jj5/repo/git/git.kernel.org/torvalds-linux
$ git remote show origin
* remote origin
  Fetch URL: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
  Push  URL: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
  HEAD branch: master
  Remote branch:
    master tracked
  Local branch configured for 'git pull':
    master merges with remote master
  Local ref configured for 'git push':
    master pushes to master (local out of date)
-------------------

The scripts/clang-tools/gen_compile_commands.py runs just fine:

-------------------
Fri Jun 14 00:35:28 [bash:5.2.15 jobs:0 error:0 time:2453]
jj5@virtuoso:/home/jj5/repo/git/git.kernel.org/torvalds-linux
$ scripts/clang-tools/gen_compile_commands.py 
-------------------

But there is a problem with some unknown clang options, as you can see here:

Problems with clang commands in VS Code

So I wrote this collection of sed scripts to delete the problematic options:

-------------------
Fri Jun 14 00:11:28 [bash:5.2.15 jobs:0 error:0 time:1013]
jj5@virtuoso:/home/jj5/repo/git/git.kernel.org/torvalds-linux
$ cat jj5/fix-commands.sh 
#!/bin/bash

main() {

  set -euo pipefail;

  cd "$( dirname "$0" )";

  cd ..;

  local file="compile_commands.json";

  sed -i 's/-mpreferred-stack-boundary=3//g' "$file"
  sed -i 's/-mfunction-return=thunk-extern//g' "$file"
  sed -i 's/-mindirect-branch=thunk-extern//g' "$file"
  sed -i 's/-mindirect-branch-register//g' "$file"
  sed -i 's/-fno-allow-store-data-races//g' "$file"
  sed -i 's/-fconserve-stack//g' "$file"
  sed -i 's/-mrecord-mcount//g' "$file"

}

main "$@";
-------------------

Bug fixed! Thanks to my mates on IRC for helping me fix this one. This clangd extension for VS Code seems to work really well.

p.s. another possible solution is here.

Spiral

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My friend sent me this:

a bunch of hardcoded print statement which spiral a counter

It pretty much forced me to write spiral.php and spiral.sh to generate this:

print('1')

print('7 8 9')
print('6 1 2')
print('5 4 3')

print('21 22 23 24 25')
print('20  7  8  9 10')
print('19  6  1  2 11')
print('18  5  4  3 12')
print('17 16 15 14 13')

print('43 44 45 46 47 48 49')
print('42 21 22 23 24 25 26')
print('41 20  7  8  9 10 27')
print('40 19  6  1  2 11 28')
print('39 18  5  4  3 12 29')
print('38 17 16 15 14 13 30')
print('37 36 35 34 33 32 31')

print('73 74 75 76 77 78 79 80 81')
print('72 43 44 45 46 47 48 49 50')
print('71 42 21 22 23 24 25 26 51')
print('70 41 20  7  8  9 10 27 52')
print('69 40 19  6  1  2 11 28 53')
print('68 39 18  5  4  3 12 29 54')
print('67 38 17 16 15 14 13 30 55')
print('66 37 36 35 34 33 32 31 56')
print('65 64 63 62 61 60 59 58 57')

print('111 112 113 114 115 116 117 118 119 120 121')
print('110  73  74  75  76  77  78  79  80  81  82')
print('109  72  43  44  45  46  47  48  49  50  83')
print('108  71  42  21  22  23  24  25  26  51  84')
print('107  70  41  20   7   8   9  10  27  52  85')
print('106  69  40  19   6   1   2  11  28  53  86')
print('105  68  39  18   5   4   3  12  29  54  87')
print('104  67  38  17  16  15  14  13  30  55  88')
print('103  66  37  36  35  34  33  32  31  56  89')
print('102  65  64  63  62  61  60  59  58  57  90')
print('101 100  99  98  97  96  95  94  93  92  91')

print('157 158 159 160 161 162 163 164 165 166 167 168 169')
print('156 111 112 113 114 115 116 117 118 119 120 121 122')
print('155 110  73  74  75  76  77  78  79  80  81  82 123')
print('154 109  72  43  44  45  46  47  48  49  50  83 124')
print('153 108  71  42  21  22  23  24  25  26  51  84 125')
print('152 107  70  41  20   7   8   9  10  27  52  85 126')
print('151 106  69  40  19   6   1   2  11  28  53  86 127')
print('150 105  68  39  18   5   4   3  12  29  54  87 128')
print('149 104  67  38  17  16  15  14  13  30  55  88 129')
print('148 103  66  37  36  35  34  33  32  31  56  89 130')
print('147 102  65  64  63  62  61  60  59  58  57  90 131')
print('146 101 100  99  98  97  96  95  94  93  92  91 132')
print('145 144 143 142 141 140 139 138 137 136 135 134 133')

print('211 212 213 214 215 216 217 218 219 220 221 222 223 224 225')
print('210 157 158 159 160 161 162 163 164 165 166 167 168 169 170')
print('209 156 111 112 113 114 115 116 117 118 119 120 121 122 171')
print('208 155 110  73  74  75  76  77  78  79  80  81  82 123 172')
print('207 154 109  72  43  44  45  46  47  48  49  50  83 124 173')
print('206 153 108  71  42  21  22  23  24  25  26  51  84 125 174')
print('205 152 107  70  41  20   7   8   9  10  27  52  85 126 175')
print('204 151 106  69  40  19   6   1   2  11  28  53  86 127 176')
print('203 150 105  68  39  18   5   4   3  12  29  54  87 128 177')
print('202 149 104  67  38  17  16  15  14  13  30  55  88 129 178')
print('201 148 103  66  37  36  35  34  33  32  31  56  89 130 179')
print('200 147 102  65  64  63  62  61  60  59  58  57  90 131 180')
print('199 146 101 100  99  98  97  96  95  94  93  92  91 132 181')
print('198 145 144 143 142 141 140 139 138 137 136 135 134 133 182')
print('197 196 195 194 193 192 191 190 189 188 187 186 185 184 183')

Error while running rockboxdev.sh

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UPDATE: this problem was solved by installing some packages. The relevant hint is highlighted in red below.

This is the salt state I used to install dependencies on my Debian 12 system:

rockbox-dev-tools:
  pkg.latest:
    - pkgs:
      - texinfo
      - texi2html
      - automake
      - autotools-dev
      - libtool
      - libtool-bin
      - autoconf
      - flex
      - bison
      - libisl-dev
      - libgmp-dev
      - libmpc-dev
      - libmpfr-dev

I am following these instructions: https://git.rockbox.org/cgit/rockbox.git/tree/docs/README and am having this problem:

-------------------
Wed Jun 12 17:29:38 [bash:5.2.15 jobs:0 error:0 time:9641]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org/rockbox/build
$ sudo ../tools/rockboxdev.sh
Download directory : /tmp/rbdev-dl (set RBDEV_DOWNLOAD or use --dlwhere= to change)
Install prefix     : /usr/local  (set RBDEV_PREFIX or use --prefix= to change)
Build dir          : /tmp/rbdev-build (set RBDEV_BUILD or use --builddir= to change)
Make options       :  (set MAKEFLAGS or use --makeflags= to change)
Restart step       :  (set RBDEV_RESTART or use --restart= to change)
Target arch        :  (set RBDEV_TARGET or use --target= to change)
Select target arch:
m   - m68k     (iriver h1x0/h3x0, iaudio m3/m5/x5 and mpio hd200)
a   - arm      (ipods, iriver H10, Sansa, D2, Gigabeat, older Sony NWZ, etc)
i   - mips     (Jz47xx and ATJ-based players)
x   - arm-linux  (Generic Linux ARM: Samsung ypr0, Linux-based Sony NWZ)
y   - mips-linux  (Generic Linux MIPS: eg the many HiBy-OS targets)
separate multiple targets with spaces
(Example: "m a i" will build m68k, arm, and mips)

a

ROCKBOXDEV: Starting step 'binutils'
ROCKBOXDEV: Downloading binutils-2.26.1.tar.bz2 using curl
ROCKBOXDEV: try http://mirrors.kernel.org/gnu/binutils/binutils-2.26.1.tar.bz2
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 24.4M  100 24.4M    0     0   791k      0  0:00:31  0:00:31 --:--:--  702k
ROCKBOXDEV: extracting binutils-2.26.1
ROCKBOXDEV: Getting ISL
ROCKBOXDEV: Downloading isl-0.15.tar.bz2 using curl
ROCKBOXDEV: try https://gcc.gnu.org/pub/gcc/infrastructure/isl-0.15.tar.bz2
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1538k  100 1538k    0     0   595k      0  0:00:02  0:00:02 --:--:--  595k
ROCKBOXDEV: logging to /tmp/rbdev-build/build-binutils.log
ROCKBOXDEV: mkdir build-binutils
ROCKBOXDEV: binutils/configure
ROCKBOXDEV: binutils/make
ROCKBOXDEV: an error occured, please see /tmp/rbdev-build/build-binutils.log
-------------------
Wed Jun 12 17:30:31 [bash:5.2.15 jobs:0 error:0 time:9694]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org/rockbox/build
$ cat /tmp/rbdev-build/build-binutils.log
Running '../binutils-2.26.1/configure --target=arm-elf-eabi --prefix=/usr/local --disable-docs --disable-werror'
checking build system type... x86_64-pc-linux-gnu
checking host system type... x86_64-pc-linux-gnu
checking target system type... arm-elf-eabi
checking for a BSD-compatible install... /usr/bin/install -c
checking whether ln works... yes
checking whether ln -s works... yes
checking for a sed that does not truncate output... /usr/bin/sed
checking for gawk... no
checking for mawk... mawk
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking whether g++ accepts -static-libstdc++ -static-libgcc... yes
checking for gnatbind... no
checking for gnatmake... no
checking whether compiler driver understands Ada... no
checking how to compare bootstrapped objects... cmp --ignore-initial=16 $$f1 $$f2
checking for objdir... .libs
configure: WARNING: using in-tree ISL, disabling version check
checking for default BUILD_CONFIG... 
checking for --enable-vtable-verify... no
checking for bison... bison -y
checking for bison... bison
checking for gm4... no
checking for gnum4... no
checking for m4... m4
checking for flex... flex
checking for flex... flex
checking for makeinfo... makeinfo
checking for expect... no
checking for runtest... no
checking for ar... ar
checking for as... as
checking for dlltool... no
checking for ld... ld
checking for lipo... no
checking for nm... nm
checking for ranlib... ranlib
checking for strip... strip
checking for windres... no
checking for windmc... no
checking for objcopy... objcopy
checking for objdump... objdump
checking for readelf... readelf
checking for arm-elf-eabi-cc... no
checking for arm-elf-eabi-gcc... no
checking for arm-elf-eabi-c++... no
checking for arm-elf-eabi-g++... no
checking for arm-elf-eabi-cxx... no
checking for arm-elf-eabi-gxx... no
checking for arm-elf-eabi-gcc... no
checking for arm-elf-eabi-gcj... no
checking for arm-elf-eabi-gfortran... no
checking for arm-elf-eabi-gccgo... no
checking for arm-elf-eabi-ar... no
checking for arm-elf-eabi-as... no
checking for arm-elf-eabi-dlltool... no
checking for arm-elf-eabi-ld... no
checking for arm-elf-eabi-lipo... no
checking for arm-elf-eabi-nm... no
checking for arm-elf-eabi-objcopy... no
checking for arm-elf-eabi-objdump... no
checking for arm-elf-eabi-ranlib... no
checking for arm-elf-eabi-readelf... no
checking for arm-elf-eabi-strip... no
checking for arm-elf-eabi-windres... no
checking for arm-elf-eabi-windmc... no
checking where to find the target ar... just compiled
checking where to find the target as... just compiled
checking where to find the target cc... pre-installed
checking where to find the target c++... pre-installed
checking where to find the target c++ for libstdc++... pre-installed
checking where to find the target dlltool... just compiled
checking where to find the target gcc... pre-installed
checking where to find the target gcj... pre-installed
checking where to find the target gfortran... pre-installed
checking where to find the target gccgo... pre-installed
checking where to find the target ld... just compiled
checking where to find the target lipo... pre-installed
checking where to find the target nm... just compiled
checking where to find the target objcopy... just compiled
checking where to find the target objdump... just compiled
checking where to find the target ranlib... just compiled
checking where to find the target readelf... just compiled
checking where to find the target strip... just compiled
checking where to find the target windres... just compiled
checking where to find the target windmc... just compiled
checking whether to enable maintainer-specific portions of Makefiles... no
configure: creating ./config.status
config.status: creating Makefile
Running 'gmake -j8'
gmake[1]: Entering directory '/tmp/rbdev-build/build-binutils'
gmake[1]: Nothing to be done for 'all-target'.
mkdir -p -- ./intl
mkdir -p -- ./isl
mkdir -p -- ./etc
Configuring in ./intl
Configuring in ./isl
mkdir -p -- ./libiberty
Configuring in ./etc
mkdir -p -- ./zlib
Configuring in ./libiberty
Configuring in ./zlib
configure: creating cache ./config.cache
checking whether to enable maintainer-specific portions of Makefiles... no
checking for makeinfo... makeinfo --split-size=5000000
configure: creating cache ./config.cache
checking whether gmake sets $(MAKE)... configure: creating cache ./config.cache
checking for a BSD-compatible install... /usr/bin/install -c
configure: creating cache ./config.cache
yes
checking for a BSD-compatible install... /usr/bin/install -c
checking whether NLS is requested... yes
configure: creating cache ./config.cache
checking for a BSD-compatible install... checking for msgfmt... no
checking for gmsgfmt... /usr/bin/install -c
checking whether build environment is sane... :
checking for xgettext... no
yes
checking build system type... configure: updating cache ./config.cache
checking for msgmerge... no
checking for x86_64-pc-linux-gnu-gcc... gcc
configure: creating ./config.status
checking for a thread-safe mkdir -p... x86_64-pc-linux-gnu
/usr/bin/mkdir -p
checking host system type... checking for gawk... mawk
checking whether gmake sets $(MAKE)... yes
x86_64-pc-linux-gnu
checking target system type... checking whether gmake supports nested variables... yes
checking for C compiler default output file name... arm-elf-eabi
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... checking whether gmake supports nested variables... (cached) yes
checking for x86_64-pc-linux-gnu-gcc... gcc
checking whether the C compiler works... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... checking for perl... perl
checking build system type... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... config.status: creating Makefile

checking for suffix of object files... x86_64-pc-linux-gnu
checking host system type... 
x86_64-pc-linux-gnu
checking for x86_64-pc-linux-gnu-ar... ar
checking for x86_64-pc-linux-gnu-ranlib... ranlib
checking whether to install libiberty headers and static library... no
configure: target_header_dir = 
checking for x86_64-pc-linux-gnu-gcc... gcc
checking whether we are cross compiling... o
checking whether we are using the GNU C compiler... gmake[2]: Entering directory '/tmp/rbdev-build/build-binutils/etc'
gmake[2]: Nothing to be done for 'all'.
gmake[2]: Leaving directory '/tmp/rbdev-build/build-binutils/etc'
yes
checking whether gcc accepts -g... no
checking for suffix of object files... yes
checking for gcc option to accept ISO C89... checking for C compiler default output file name... o
checking whether we are using the GNU C compiler... none needed
a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... yes
checking whether gcc accepts -g... checking build system type... x86_64-pc-linux-gnu
checking host system type... yes
checking for gcc option to accept ISO C89... x86_64-pc-linux-gnu
checking for x86_64-pc-linux-gnu-ranlib... ranlib
checking for library containing strerror... 
checking for suffix of object files... none needed
checking whether gcc understands -c and -o together... o
checking whether we are using the GNU C compiler... none required
checking how to run the C preprocessor... yes
checking whether gcc accepts -g... yes
checking for style of include used by gmake... gcc -E
GNU
checking dependency style of gcc... yes
checking for gcc option to accept ISO C89... checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... none needed
checking how to run the C preprocessor... /usr/bin/grep -E
checking for ANSI C header files... gcc3
checking whether we are using the GNU C++ compiler... gcc -E
yes
checking whether g++ accepts -g... checking for grep that handles long lines and -e... /usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for ANSI C header files... yes
checking dependency style of g++... gcc3
checking for C compiler vendor... yes
checking for an ANSI C-conforming const... yes
checking for inline... inline
checking for sys/types.h... yes
yes
checking for sys/types.h... checking for sys/stat.h... yes
gnu
yes
checking for stdlib.h... checking for sys/stat.h... checking build system type... x86_64-pc-linux-gnu
checking host system type... yes
yes
checking for string.h... checking for stdlib.h... x86_64-pc-linux-gnu
checking whether the compiler supports function __attribute__((__warn_unused_result__))... yes
yes
yes
checking for __attribute__... checking for memory.h... checking for string.h... yes
checking how to print strings... yes
checking for strings.h... yes
checking for memory.h... printf
checking for a sed that does not truncate output... /usr/bin/sed
checking for grep that handles long lines and -e... yes
/usr/bin/grep
checking for egrep... /usr/bin/grep -E
checking for fgrep... /usr/bin/grep -F
checking for ld used by gcc... checking for inttypes.h... ld
checking if the linker (ld) is GNU ld... yes
yes
checking for BSD- or MS-compatible name lister (nm)... nm
checking the name lister (nm) interface... checking for strings.h... yes
checking for stdint.h... yes
checking for inttypes.h... yes
BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... yes
checking for unistd.h... 1572864
checking for stdint.h... checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for ld option to reload object files... -r
checking for x86_64-pc-linux-gnu-objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for x86_64-pc-linux-gnu-dlltool... dlltool
checking how to associate runtime and link libraries... printf %s\n
checking for x86_64-pc-linux-gnu-ar... ar
checking for archiver @FILE support... yes
yes
checking for off_t... @
checking for x86_64-pc-linux-gnu-strip... no
checking for strip... strip
checking for x86_64-pc-linux-gnu-ranlib... ranlib
checking command to parse nm output from gcc object... checking for unistd.h... yes
checking minix/config.h usability... yes
checking for size_t... no
checking minix/config.h presence... ok
checking for sysroot... no
no
checking for minix/config.h... no
checking whether it is safe to define __EXTENSIONS__... checking for x86_64-pc-linux-gnu-mt... no
checking for mt... mt
checking if mt is a manifest tool... no
checking how to run the C preprocessor... yes
yes
checking for working alloca.h... checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
gcc -E
checking whether gcc supports -W... yes
checking for alloca... yes
checking whether gcc supports -Wall... checking for ANSI C header files... yes
checking for stdlib.h... (cached) yes
yes
checking whether gcc supports -Wwrite-strings... checking for unistd.h... (cached) yes
checking for getpagesize... yes
checking whether gcc supports -Wc++-compat... yes
checking for working mmap... yes
checking whether gcc supports -Wstrict-prototypes... yes
checking whether gcc supports -pedantic ... yes
checking for sys/types.h... yes
checking whether gcc and cc understand -c and -o together... yes
checking for sys/stat.h... yes
checking whether we are using the GNU C Library 2.1 or newer... yes
yes
checking whether integer division by zero raises SIGFPE... checking for stdlib.h... yes
checking for string.h... yes
checking for inttypes.h... yes
checking for an ANSI C-conforming const... yes
yes
checking for stdint.h... checking for memory.h... yes
checking for inline... yes
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configure: updating cache ./config.cache
configure: creating ./config.status
config.status: creating Makefile
config.status: creating testsuite/Makefile
config.status: creating config.h
config.status: executing default commands
gmake[1]: Leaving directory '/tmp/rbdev-build/build-binutils'
gmake: *** [Makefile:847: all] Error 2
-------------------

Missing libtool when preparing to build rockbox

Posted on by
Reply

UPDATE: the solution to this problem was to install the package ‘libtool-bin’.

I am following these instructions: https://git.rockbox.org/cgit/rockbox.git/tree/docs/README and am having this problem:

-------------------
Wed Jun 12 16:02:02 [bash:5.2.15 jobs:0 error:0 time:4385]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org
$ git clone git://git.rockbox.org/rockbox
Cloning into 'rockbox'...
remote: Enumerating objects: 294287, done.
remote: Counting objects: 100% (294287/294287), done.
remote: Compressing objects: 100% (65094/65094), done.
remote: Total 294287 (delta 229471), reused 292590 (delta 227774), pack-reused 0 (from 0)
Receiving objects: 100% (294287/294287), 171.09 MiB | 3.97 MiB/s, done.
Resolving deltas: 100% (229471/229471), done.
-------------------
Wed Jun 12 16:03:02 [bash:5.2.15 jobs:0 error:0 time:4445]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org
$ cd rockbox
-------------------
Wed Jun 12 16:03:11 [bash:5.2.15 jobs:0 error:0 time:4454]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org/rockbox
$ mkdir build
-------------------
Wed Jun 12 16:03:13 [bash:5.2.15 jobs:0 error:0 time:4456]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org/rockbox
$ cd build
-------------------
Wed Jun 12 16:03:15 [bash:5.2.15 jobs:0 error:0 time:4458]
jj5@virtuoso:/home/jj5/repo/git/git.rockbox.org/rockbox/build
$ ../tools/rockboxdev.sh
ROCKBOXDEV: "libtool" is required for this script to work.
ROCKBOXDEV: Please install the missing tools and re-run the script.
-------------------

I did install the ‘libtool’ package on my Debian system, but there is no ‘libtool’ command, only ‘libtoolize’.