diff --git a/gcc/config/bpf/bpf.h b/gcc/config/bpf/bpf.h index c67e17526bfa3b61df80c3d9e7cab7cde6f74282..e163fbf688d06a79913dabf3ad252e8b8f08b752 100644 --- a/gcc/config/bpf/bpf.h +++ b/gcc/config/bpf/bpf.h @@ -245,6 +245,11 @@ enum reg_class /**** Debugging Info ****/ +/* Use BTF debug info by default. */ + +#undef PREFERRED_DEBUGGING_TYPE +#define PREFERRED_DEBUGGING_TYPE BTF_DEBUG + /* In eBPF it is not possible to unwind frames. Disable CFA. */ #define DWARF2_FRAME_INFO 0 diff --git a/gcc/testsuite/gcc.target/bpf/bpf-debug-options-1.c b/gcc/testsuite/gcc.target/bpf/bpf-debug-options-1.c new file mode 100644 index 0000000000000000000000000000000000000000..409466c4ead04fadc3027986a9bd13b242cb74a5 --- /dev/null +++ b/gcc/testsuite/gcc.target/bpf/bpf-debug-options-1.c @@ -0,0 +1,17 @@ +/* Default to BTF debug info. */ +/* { dg-do compile } */ +/* { dg-options "-g -dA" }*/ + +struct A { + int x; + int y; +}; + +int +foo (struct A *a) +{ + return a->x; +} + +/* { dg-final { scan-assembler-not "DWARF version" } } */ +/* { dg-final { scan-assembler "btf_version" } } */ diff --git a/gcc/testsuite/gcc.target/bpf/bpf-debug-options-2.c b/gcc/testsuite/gcc.target/bpf/bpf-debug-options-2.c new file mode 100644 index 0000000000000000000000000000000000000000..03bde12315bb64cbc1d5a83452b44768cc0baeb3 --- /dev/null +++ b/gcc/testsuite/gcc.target/bpf/bpf-debug-options-2.c @@ -0,0 +1,18 @@ +/* -g defaults to BTF, which in turn implies -mco-re. */ +/* { dg-do compile } */ +/* { dg-options "-g -dA" }*/ + +struct A { + int x; + int y; +}; + +int +foo (struct A *a) +{ + return __builtin_preserve_access_index (a->x); +} + +/* { dg-final { scan-assembler-not "DWARF version" } } */ +/* { dg-final { scan-assembler "btf_version" } } */ +/* { dg-final { scan-assembler "btfext_version" } } */ diff --git a/gcc/testsuite/gcc.target/bpf/bpf-debug-options-3.c b/gcc/testsuite/gcc.target/bpf/bpf-debug-options-3.c new file mode 100644 index 0000000000000000000000000000000000000000..d41790e0928fdf848016e0487ce6a367f2beefe4 --- /dev/null +++ b/gcc/testsuite/gcc.target/bpf/bpf-debug-options-3.c @@ -0,0 +1,14 @@ +/* Using -g does not incorrectly force CO-RE enabled. */ +/* { dg-do compile } */ +/* { dg-options "-g -dA -mno-co-re" }*/ + +struct A { + int x; + int y; +}; + +int +foo (struct A *a) +{ + return __builtin_preserve_access_index (a->x); /* { dg-error "BPF CO-RE is required" } */ +} diff --git a/gcc/testsuite/gcc.target/bpf/core-options-4.c b/gcc/testsuite/gcc.target/bpf/core-options-4.c new file mode 100644 index 0000000000000000000000000000000000000000..fde4195da42dbe9e065fbc3ec40ad87833cef577 --- /dev/null +++ b/gcc/testsuite/gcc.target/bpf/core-options-4.c @@ -0,0 +1,4 @@ +/* -g implies BTF, -gtoggle turns it off. CO-RE should not work. */ +/* { dg-do compile } */ +/* { dg-options "-g -mco-re -gtoggle" } */ +/* { dg-excess-errors "BPF CO-RE requires BTF debugging information" } */