Fix eh frame relocation (#2109)

* Exclude .eh_frame

programs/bpf/c/src/noop++.cc

@@ -12,6 +12,7 @@ extern bool entrypoint(const uint8_t *input) {
   SolClusterInfo info;
 
   sol_log(__FILE__);
+   
   if (!sol_deserialize(input, ka, SOL_ARRAY_SIZE(ka), &ka_len, &data, &data_len, &info)) {
     return false;
   }

sdk/bpf/bpf.ld

@@ -16,5 +16,4 @@ SECTIONS
   .gnu.hash : { *(.gnu.hash) } :dynamic
   .rel.dyn : { *(.rel.dyn) } :dynamic
   .hash : { *(.hash) } :dynamic
-
 }

sdk/bpf/bpf.mk

@@ -60,6 +60,10 @@ BPF_CXX_FLAGS := \
   -emit-llvm \
   -target bpf \
   -fPIC \
+  -fomit-frame-pointer \
+  -fno-exceptions \
+  -fno-asynchronous-unwind-tables \
+  -fno-unwind-tables \
 
 BPF_LLC_FLAGS := \
   -march=bpf \

tests/programs.rs

@@ -299,12 +299,7 @@ fn test_program_builtin_bpf_noop() {
 fn test_program_bpf_c() {
     logger::setup();
 
-    let programs = [
-        "noop",
-        "struct_pass",
-        "struct_ret",
-        //"noop++" // TODO fails with buffer overflow
-    ];
+    let programs = ["noop", "struct_pass", "struct_ret", "noop++"];
     for program in programs.iter() {
         println!("Test program: {:?}", program);
         let mut file = File::open(create_bpf_path(program)).expect("file open failed");