how get the symbol file when build command is 'ohrs build --arch aarch --release -- -Z build-std=std -Z build-std-features="optimize_for_size"'

[SaigyoujiLuna]

I use command below to build my project as a dylib :
ohrs build --arch aarch --release -- -Z build-std=std -Z build-std-features="optimize_for_size"
and Cargo.toml below:

[package]
name = "im_rust_ts"
version.workspace = true
edition.workspace = true

[lib]
crate-type = ["cdylib"]

[dependencies]
lazy_static = { workspace = true }
log = { workspace = true }
once_cell = { workspace = true }
serde_json = { workspace = true }
serde = { workspace = true }
http = { workspace = true }
base64 = { workspace = true }
dyn-clone = { workspace = true }

napi = { workspace = true, optional = true }
napi-derive = { workspace = true, optional = true }
napi-ohos = { workspace = true, optional = true }
napi-derive-ohos = { workspace = true, optional = true }

[build-dependencies]
napi-build = { workspace = true, optional = true }
napi-build-ohos = { workspace = true, optional = true }

[profile.release]
lto = true
strip = true 

When I use the output .so file as other application component, the crash occured. I try to debug it, but the lack of symbol make me debug so hard because I can not locate which line crashed by use the objdump.

[github-actions]

@richerfu Please check this issue, thanks.

[richerfu]

please build project without --release

[SaigyoujiLuna]

please build project without --release

but I need provide my package to other team, I can not build a debug package, because it could make package size become huge

[richerfu]

You can remove strip = true which is in your cargo.toml

[richerfu]

These are some common solutions.
You need to set debug with Cargo.toml

[profile.release]
lto = true
strip = true
debug = true

And save your debug info with objcopy:

$OHOS_NDK_HOME/native/llvm/bin/llvm-objcopy --only-keep-debug ./dist/arm64-v8a/libhello.so ./hello.debug

In fact, this is a general solution for rust, which has nothing to do with ohos-rs itself.

[SaigyoujiLuna]

These are some common solutions. You need to set debug with Cargo.toml

[profile.release]
lto = true
strip = true
debug = true

And save your debug info with objcopy:

$OHOS_NDK_HOME/native/llvm/bin/llvm-objcopy --only-keep-debug ./dist/arm64-v8a/libhello.so ./hello.debug

In fact, this is a general solution for rust, which has nothing to do with ohos-rs itself.

no, when I set

[profile.release]
strip = false
debug = true

in Cargo.toml, and use the below command to compile

ohrs build --arch aarch --release -- -Z build-std=std -Z build-std-features="optimize_for_size"

the objdump file is looks like that:

when I delete "--release", the package size become to 150MB, but the objdump file have all information I need.

[richerfu]

You need to save your debug info with debug=true and use debug file to locate the source code. It's impossible for us to get the smallest binary size with source info.

[SaigyoujiLuna]

You need to save your debug info with debug=true and use debug file to locate the source code. It's impossible for us to get the smallest binary size with source info.您需要使用debug=true保存调试信息并使用调试文件来定位源代码。我们不可能通过源信息获得最小的二进制大小。

I got. it could not have all debug info such as line number, and what rust code relative this asm code, which I just can relay on remaining debug info( struct name, method reference expression invoke, method signature etc. ) when compile by

ohrs build --release

right?

[richerfu]

Yep