From: Giuliano Procida <gprocida@google.com>
To: dwarves@vger.kernel.org, acme@kernel.org
Cc: andrii@kernel.org, ast@kernel.org, gprocida@google.com,
maennich@google.com, kernel-team@android.com, kernel-team@fb.com,
bpf@vger.kernel.org
Subject: [PATCH dwarves v4 3/5] btf_encoder: Traverse sections using a for-loop
Date: Wed, 17 Feb 2021 11:08:02 +0000 [thread overview]
Message-ID: <20210217110804.75923-4-gprocida@google.com> (raw)
In-Reply-To: <20210217110804.75923-1-gprocida@google.com>
The pointer (iterator) scn can be made local to the loop and a more
general while-loop is not needed.
Signed-off-by: Giuliano Procida <gprocida@google.com>
---
libbtf.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libbtf.c b/libbtf.c
index ace8896..4ae7150 100644
--- a/libbtf.c
+++ b/libbtf.c
@@ -700,7 +700,6 @@ static int btf_elf__write(const char *filename, struct btf *btf)
{
GElf_Ehdr ehdr;
Elf_Data *btf_data = NULL;
- Elf_Scn *scn = NULL;
Elf *elf = NULL;
const void *raw_btf_data;
uint32_t raw_btf_size;
@@ -748,7 +747,7 @@ static int btf_elf__write(const char *filename, struct btf *btf)
*/
elf_getshdrstrndx(elf, &strndx);
- while ((scn = elf_nextscn(elf, scn)) != NULL) {
+ for (Elf_Scn *scn = elf_nextscn(elf, NULL); scn; scn = elf_nextscn(elf, scn)) {
GElf_Shdr shdr;
if (!gelf_getshdr(scn, &shdr))
continue;
--
2.30.0.478.g8a0d178c01-goog
next prev parent reply other threads:[~2021-02-17 11:10 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87a83353155506cc02141e6e4108d89aa4e7d284>
2021-02-01 17:25 ` [PATCH dwarves v2 0/4] BTF ELF writing changes Giuliano Procida
2021-02-01 17:25 ` [PATCH dwarves v2 1/4] btf_encoder: Add .BTF section using libelf Giuliano Procida
2021-02-04 4:10 ` Andrii Nakryiko
2021-02-04 18:29 ` Giuliano Procida
2021-02-01 17:25 ` [PATCH dwarves v2 2/4] btf_encoder: Manually lay out updated ELF sections Giuliano Procida
2021-02-04 4:13 ` Andrii Nakryiko
2021-02-04 18:34 ` Giuliano Procida
2021-02-04 23:06 ` Andrii Nakryiko
2021-02-01 17:25 ` [PATCH dwarves v2 3/4] btf_encoder: Add .BTF as a loadable segment Giuliano Procida
2021-02-02 10:54 ` Giuliano Procida
2021-02-01 17:25 ` [PATCH dwarves v2 4/4] btf_encoder: Align .BTF section/segment to 8 bytes Giuliano Procida
2021-02-04 4:10 ` Andrii Nakryiko
2021-02-04 15:11 ` Giuliano Procida
2021-02-04 15:11 ` [PATCH] btf_encoder: Align .BTF section " Giuliano Procida
2021-02-05 13:42 ` [PATCH dwarves v3 0/5] ELF writing changes Giuliano Procida
2021-02-05 13:42 ` [PATCH dwarves v3 1/5] btf_encoder: Funnel ELF error reporting through a macro Giuliano Procida
2021-02-08 22:20 ` Andrii Nakryiko
2021-02-05 13:42 ` [PATCH dwarves v3 2/5] btf_encoder: Do not use both structs and pointers for the same data Giuliano Procida
2021-02-08 22:23 ` Andrii Nakryiko
2021-02-09 14:52 ` Giuliano Procida
2021-02-05 13:42 ` [PATCH dwarves v3 3/5] btf_encoder: Traverse sections using a for-loop Giuliano Procida
2021-02-08 22:24 ` Andrii Nakryiko
2021-02-09 14:59 ` Giuliano Procida
2021-02-05 13:42 ` [PATCH dwarves v3 4/5] btf_encoder: Add .BTF section using libelf Giuliano Procida
2021-02-08 22:29 ` Andrii Nakryiko
2021-02-09 15:04 ` Giuliano Procida
2021-02-05 13:42 ` [PATCH dwarves v3 5/5] btf_encoder: Align .BTF section to 8 bytes Giuliano Procida
2021-02-08 22:29 ` Andrii Nakryiko
2021-02-09 15:05 ` Giuliano Procida
2021-02-17 11:07 ` [PATCH dwarves v4 0/5] ELF writing changes Giuliano Procida
2021-02-17 11:08 ` [PATCH dwarves v4 1/5] btf_encoder: Funnel ELF error reporting through a macro Giuliano Procida
2021-02-17 11:08 ` [PATCH dwarves v4 2/5] btf_encoder: Do not use both structs and pointers for the same data Giuliano Procida
2021-02-17 11:08 ` Giuliano Procida [this message]
2021-02-17 11:08 ` [PATCH dwarves v4 4/5] btf_encoder: Add .BTF section using libelf Giuliano Procida
2021-02-17 11:08 ` [PATCH dwarves v4 5/5] btf_encoder: Align .BTF section to 8 bytes Giuliano Procida
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