GELF_GETSHDR(3)

📦
version 0.197 · 2 versions
, in alpine 3.24, arch rolling, centos-stream 10, centos-stream 9, fedora 43, fedora 44, nixpkgs unstable, ubuntu stonking

💖 GELF_GETSHDR 💖

okay bestie, welcome to the libelf programmer's manual, section 3 — this is the gelf_getshdr(3) page and it's literally so useful. sit down, grab a boba, let's get into it 🧋✨

✨ NAME ✨

gelf_getshdr — retrieve a section header into a class-independent structure

like… it goes and gets the section header for you and hands it over in a form that doesn't care whether you're on 32-bit or 64-bit. iconic behavior honestly 👑

🎀 SYNOPSIS 🎀

#include <gelf.h>

GElf_Shdr *gelf_getshdr(Elf_Scn *scn, GElf_Shdr *dst);

🦋 DESCRIPTION 🦋

so here's the vibe. gelf_getshdr() retrieves the section header that belongs to the section descriptor scn, and it translates it into the class-independent GElf_Shdr representation. then it copies that header into the structure that dst points at.

no cap, that's the whole thing. it's giving "glow-up your ELF section headers into one universal format" 💅

🌸 PARAMETERS 🌸

  • scn — a pointer to a section descriptor of type Elf_Scn. this is your girl, the section you're curious about 🫶
  • dst — a pointer to a caller-provided GElf_Shdr structure that's gonna receive the section header. you bring the container, it brings the contents 🎁

⭐ RETURN VALUE ⭐

  • on success, gelf_getshdr() stores the section header in dst and returns dst. slay.
  • on failure, NULL is returned and elf_errno is set. check it, bestie, it's telling you what went wrong 😭
  • special case: if scn is NULL, then NULL is returned without setting elf_errno. so like… that one's on you, not on elf_errno 🙈

🔥 SEE ALSO 🔥

go read those next, iykyk 📚

👑 ATTRIBUTES 👑

  • Interface: gelf_getshdr()
  • Attribute: Thread safety
  • Value: MT-Safe

so yes, she's MT-Safe — you can call her from multiple threads and she won't start drama 🌈✨

💀 REPORTING BUGS 💀

found a bug? not me manifesting that, but if it happens, report it to <elfutils-devel@sourceware.org> or hit up https://sourceware.org/bugzilla/. they wanna know fr fr 🐛

okay that's the whole page, bestie 💖 this was the Libelf programmer's manual, page GELF_GETSHDR(3), dated 2025-09-22. now go forth and get those section headers, you absolute main character 🌟💅🎀

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