From: Alan Maguire <alan.maguire@oracle.com>
To: acme@kernel.org, ast@kernel.org, jolsa@kernel.org, yhs@fb.com,
andrii@kernel.org
Cc: daniel@iogearbox.net, laoar.shao@gmail.com, martin.lau@linux.dev,
song@kernel.org, john.fastabend@gmail.com, kpsingh@kernel.org,
sdf@google.com, haoluo@google.com, bpf@vger.kernel.org,
Alan Maguire <alan.maguire@oracle.com>
Subject: [RFC dwarves 1/6] btf_encoder: record function address and if it is local
Date: Wed, 17 May 2023 17:16:43 +0100 [thread overview]
Message-ID: <20230517161648.17582-2-alan.maguire@oracle.com> (raw)
In-Reply-To: <20230517161648.17582-1-alan.maguire@oracle.com>
this will help our encoding disambiguate functions.
Signed-off-by: Alan Maguire <alan.maguire@oracle.com>
---
btf_encoder.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/btf_encoder.c b/btf_encoder.c
index 65f6e71..edf72e6 100644
--- a/btf_encoder.c
+++ b/btf_encoder.c
@@ -45,7 +45,9 @@ struct btf_encoder_state {
struct elf_function {
const char *name;
bool generated;
+ bool local;
size_t prefixlen;
+ uint64_t addr;
struct function *function;
struct btf_encoder_state state;
};
@@ -1015,6 +1017,8 @@ static int btf_encoder__collect_function(struct btf_encoder *encoder, GElf_Sym *
encoder->functions.entries[encoder->functions.cnt].prefixlen = suffix - name;
}
encoder->functions.entries[encoder->functions.cnt].generated = false;
+ encoder->functions.entries[encoder->functions.cnt].local = elf_sym__is_local_function(sym);
+ encoder->functions.entries[encoder->functions.cnt].addr = elf_sym__value(sym);
encoder->functions.entries[encoder->functions.cnt].function = NULL;
encoder->functions.entries[encoder->functions.cnt].state.got_proto = false;
encoder->functions.entries[encoder->functions.cnt].state.proto[0] = '\0';
--
2.31.1
next prev parent reply other threads:[~2023-05-17 16:19 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-17 16:16 [RFC dwarves 0/6] Encoding function addresses using DECL_TAGs Alan Maguire
2023-05-17 16:16 ` Alan Maguire [this message]
2023-05-17 16:16 ` [RFC dwarves 2/6] dwarf_loader: store address in function low_pc if available Alan Maguire
2023-05-17 16:16 ` [RFC dwarves 3/6] dwarf_loader: transfer low_pc info from subtroutine to its abstract origin Alan Maguire
2023-05-17 16:16 ` [RFC dwarves 4/6] btf_encoder: add "addr=0x<addr>" function declaration tag if --btf_gen_func_addr specified Alan Maguire
2023-05-17 16:16 ` [RFC dwarves 5/6] btf_encoder: store ELF function representations sorted by name _and_ address Alan Maguire
2023-05-18 8:39 ` Jiri Olsa
2023-05-18 13:23 ` Alan Maguire
2023-05-18 15:20 ` Yonghong Song
2023-05-18 16:22 ` Jiri Olsa
2023-05-18 18:25 ` Yonghong Song
2023-05-19 0:23 ` Yonghong Song
2023-05-19 0:26 ` Alexei Starovoitov
2023-05-22 21:31 ` Andrii Nakryiko
2023-05-25 8:52 ` Jiri Olsa
2023-05-25 10:14 ` Alan Maguire
2023-05-25 17:29 ` Andrii Nakryiko
2023-05-17 16:16 ` [RFC dwarves 6/6] pahole: document --btf_gen_func_addr Alan Maguire
2023-05-19 9:44 ` [RFC dwarves 0/6] Encoding function addresses using DECL_TAGs Yafang Shao
2023-05-19 14:46 ` Yonghong Song
2023-05-19 15:08 ` Alan Maguire
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