fix bpf flags

Signed-off-by: Sylvain Hellegouarch <sh@defuze.org>

Author: Lawouach

.github/workflows/build.yaml

@@ -74,7 +74,7 @@ jobs:
           cargo install bpf-linker --git https://github.com/aya-rs/bpf-linker.git
           cargo +nightly build --verbose --target ${{ matrix.target }} --features stealth
           cargo +nightly build \
-            --release \
+            --profile bpf \
             -p fault-ebpf-programs \
             --target=bpfel-unknown-none \
             -Z build-std=core

.github/workflows/release.yaml

@@ -322,7 +322,7 @@ jobs:
           cargo install bpf-linker --git https://github.com/aya-rs/bpf-linker.git
           cargo +nightly build --profile prod-fast --features stealth --target ${{ matrix.target }}
           cargo +nightly build \
-            --release \
+            --profile bpf \
             -p fault-ebpf-programs \
             --target=bpfel-unknown-none \
             -Z build-std=core
@@ -334,7 +334,7 @@ jobs:
           cargo install bpf-linker --git https://github.com/aya-rs/bpf-linker.git
           cargo +nightly zigbuild --profile prod-fast --features stealth --target ${{ matrix.target }}
           cargo +nightly build \
-            --release \
+            --profile bpf \
             -p fault-ebpf-programs \
             --target=bpfel-unknown-none \
             -Z build-std=core

Cargo.toml

@@ -63,10 +63,13 @@ codegen-units = 1
 # (leave out panic/lto/strip)
 
 # eBPF crate: conservative tweaks; again, no panic/lto/strip here
-[profile.release.package.fault-ebpf-programs]
-opt-level = "z"
+[profile.bpf]
+inherits = "release"
+lto = "off"            # <<< IMPORTANT: no LTO for BPF
+opt-level = "z"        # small is good for eBPF objects
 codegen-units = 1
+panic = "abort"
 debug = 0
 debug-assertions = false
 overflow-checks = false
-# (leave out panic/lto/strip)
+strip = "debuginfo"