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| author | Indu Bhagat <indu.bhagat@oracle.com> | 2021-09-07 11:16:53 -0700 |
|---|---|---|
| committer | Indu Bhagat <indu.bhagat@oracle.com> | 2021-09-07 11:16:53 -0700 |
| commit | 053db9a49b00d422cd735bee4c0939b7ff07c40e (patch) | |
| tree | a8d0e57d81aaf1040a352afe7aa5f6946b6d55f0 | |
| parent | c03db573b9e619f9e4f7d7111f99877368c78e26 (diff) | |
| download | gcc-053db9a49b00d422cd735bee4c0939b7ff07c40e.zip gcc-053db9a49b00d422cd735bee4c0939b7ff07c40e.tar.gz gcc-053db9a49b00d422cd735bee4c0939b7ff07c40e.tar.bz2 | |
debug: Add BTF_WITH_CORE_DEBUG debug format
To best handle BTF/CO-RE in GCC, a distinct BTF_WITH_CORE_DEBUG debug format is
being added. This helps the compiler detect whether BTF with CO-RE relocations
needs to be emitted.
gcc/ChangeLog:
* flag-types.h (enum debug_info_type): Add new enum
DINFO_TYPE_BTF_WITH_CORE.
(BTF_WITH_CORE_DEBUG): New bitmask.
* flags.h (btf_with_core_debuginfo_p): New declaration.
* opts.c (btf_with_core_debuginfo_p): New definition.
| -rw-r--r-- | gcc/flag-types.h | 6 | ||||
| -rw-r--r-- | gcc/flags.h | 4 | ||||
| -rw-r--r-- | gcc/opts.c | 8 |
3 files changed, 17 insertions, 1 deletions
diff --git a/gcc/flag-types.h b/gcc/flag-types.h index 4fb1cb4..cc41b2a 100644 --- a/gcc/flag-types.h +++ b/gcc/flag-types.h @@ -31,7 +31,8 @@ enum debug_info_type DINFO_TYPE_VMS = 4, /* VMS debug info. */ DINFO_TYPE_CTF = 5, /* CTF debug info. */ DINFO_TYPE_BTF = 6, /* BTF debug info. */ - DINFO_TYPE_MAX = DINFO_TYPE_BTF /* Marker only. */ + DINFO_TYPE_BTF_WITH_CORE = 7, /* BTF debug info with CO-RE relocations. */ + DINFO_TYPE_MAX = DINFO_TYPE_BTF_WITH_CORE /* Marker only. */ }; #define NO_DEBUG (0U) @@ -47,6 +48,9 @@ enum debug_info_type #define CTF_DEBUG (1U << DINFO_TYPE_CTF) /* Write BTF debug info (using btfout.c). */ #define BTF_DEBUG (1U << DINFO_TYPE_BTF) +/* Write BTF debug info for BPF CO-RE usecase (using btfout.c). */ +#define BTF_WITH_CORE_DEBUG (1U << DINFO_TYPE_BTF_WITH_CORE) + /* Note: Adding new definitions to handle -combination- of debug formats, like VMS_AND_DWARF2_DEBUG is not recommended. This definition remains here for historical reasons. */ diff --git a/gcc/flags.h b/gcc/flags.h index afedef0..af61bcd 100644 --- a/gcc/flags.h +++ b/gcc/flags.h @@ -44,6 +44,10 @@ const char * debug_set_names (uint32_t w_symbols); extern bool btf_debuginfo_p (); +/* Return true iff BTF with CO-RE debug info is enabled. */ + +extern bool btf_with_core_debuginfo_p (); + /* Return true iff CTF debug info is enabled. */ extern bool ctf_debuginfo_p (); @@ -135,6 +135,14 @@ btf_debuginfo_p () return (write_symbols & BTF_DEBUG); } +/* Return TRUE iff BTF with CO-RE debug info is enabled. */ + +bool +btf_with_core_debuginfo_p () +{ + return (write_symbols & BTF_WITH_CORE_DEBUG); +} + /* Return TRUE iff CTF debug info is enabled. */ bool |