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# 06:53:24 |
bhundven |
enunes: thanks for reporting about your aarch64 build! |
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# 11:33:28 |
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# 11:34:23 |
jtrimble |
Hi all. I'm new to crosstool (and building cross-compilers in general) and have a question: |
# 11:34:57 |
jtrimble |
I've got an existing root FS based on debian for armhf architecture. I'd like to build a cross-compiler that will allow me to link against packages that I've installed through apt-get on that root FS. |
# 11:35:13 |
jtrimble |
Is this possible? It doesn't seem to be a common setup. |
# 11:35:38 |
muep |
you would need compatible headers available on the system where you compile |
# 11:36:39 |
jtrimble |
ok, that's no problem -- i can NFS mount or copy the contents of the root FS onto the host |
# 11:37:13 |
jtrimble |
is there something special about how debian builds its cross-compilers vs crosstool-ng? |
# 11:37:40 |
muep |
it might just work, as long as your toolchain is based on a libc that is similar enough to what debian has |
# 11:38:01 |
muep |
I'm just guessing, though. haven't really tried |
# 11:38:45 |
muep |
at some point I did native builds armv7 builds on Fedora, of a program I was writing |
# 11:39:22 |
muep |
those used Qt and they happened (by chance) to be runnable with the Qt Jolla ships in their phone |
# 11:39:55 |
jtrimble |
hmm ok |
# 11:40:06 |
jtrimble |
so, to do that, i could leave --sysroot unset when calling the compiler, and just always add -I/path/to/target/usr/include and -L/path/to/target/usr/lib ...? |
# 11:40:30 |
muep |
I'd try using the sysroot from the toolchain |
# 11:41:08 |
jtrimble |
from the crosstool-ng toolchain (so leaving --sysroot unset), or from what's on the debian root FS? |
# 11:41:48 |
muep |
basically I'd just make a cross toolchain as usual and try to add linker flags and include flags that'd point to Debian content and hope it'd work |
# 11:42:11 |
jtrimble |
ok, i'll give it a shot and report back |
# 11:42:15 |
jtrimble |
thanks, muep! |
# 11:42:44 |
muep |
you're welcome if random guesses from the internet seem useful to you :-) |
# 14:19:33 |
bhundven |
wakes up... looks around... |
# 14:19:53 |
bhundven |
jtrimble: sounds like an RPI setup...? |
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