buildid.cpp - mozsearch

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#include "buildid_section.h"

#if defined(XP_DARWIN) || defined(XP_WIN)

#define SECTION_NAME_ATTRIBUTE __attribute__((section(MOZ_BUILDID_SECTION_NAME)))

#else

#define SECTION_NAME_ATTRIBUTE

#endif

extern const char gToolkitBuildID[] SECTION_NAME_ATTRIBUTE  = "20241205095804";

#include <elf.h>

#define note_name "mzbldid"

#define note_desc "20241205095804"

// This is not defined on Android?

// Android also hardcodes "1"

// https://android.googlesource.com/platform/ndk/+/refs/tags/ndk-r26c/sources/crt/crtbrand.S#35

#ifndef NT_VERSION

#define NT_VERSION 1

#endif

#if defined(__clang__)

#define NO_SANITIZE_ADDRESS __attribute__((no_sanitize("address")))

#else

// gcc doesn't sanitize address of const variable

#define NO_SANITIZE_ADDRESS

#endif

struct note {

    Elf32_Nhdr header; // Elf32 or Elf64 doesn't matter, they're the same size

    char name[(sizeof(note_name) + 3) / 4 * 4];

    char desc[(sizeof(note_desc) + 3) / 4 * 4];

};

extern const struct note gNoteToolkitBuildID NO_SANITIZE_ADDRESS __attribute__((section(MOZ_BUILDID_SECTION_NAME), aligned(4), used)) = {

    { sizeof(note_name), sizeof(note_desc), NT_VERSION },

    note_name,

    note_desc

};