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[153.223.134.223]) by smtp.googlemail.com with ESMTPSA id 41be03b00d2f7-c642a9f539dsm8866928a12.26.2026.01.30.23.44.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 30 Jan 2026 23:44:52 -0800 (PST) From: Daniel Palmer To: linux@weissschuh.net, w@1wt.eu Cc: kees@kernel.org, linux-kernel@vger.kernel.org, Daniel Palmer Subject: [RFC PATCH 5/9] tools/nolibc: x86: Add relocation support for x86_64 Date: Sat, 31 Jan 2026 16:44:36 +0900 Message-ID: <20260131074440.732588-6-daniel@thingy.jp> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260131074440.732588-1-daniel@thingy.jp> References: <20260131074440.732588-1-daniel@thingy.jp> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add relocation support for x86, both 32bit and 64bit. Signed-off-by: Daniel Palmer --- tools/include/nolibc/arch-x86.h | 35 +++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/tools/include/nolibc/arch-x86.h b/tools/include/nolibc/arch-x8= 6.h index f6c43ac5377b..3639c1104e0d 100644 --- a/tools/include/nolibc/arch-x86.h +++ b/tools/include/nolibc/arch-x86.h @@ -7,8 +7,17 @@ #ifndef _NOLIBC_ARCH_X86_H #define _NOLIBC_ARCH_X86_H =20 +#define NOLIBC_ARCH_HAS_RELOC +#if !defined(__x86_64__) +#define NOLIBC_ARCH_ELF32 +#define NOLIBC_ARCH_ELF_REL +#elif defined(__x86_64__) && defined(__ILP32__) +#define NOLIBC_ARCH_ELF32 +#endif + #include "compiler.h" #include "crt.h" +#include "elf.h" =20 #if !defined(__x86_64__) =20 @@ -158,6 +167,19 @@ }) =20 #ifndef NOLIBC_NO_RUNTIME +static int __relocate_rel(unsigned long base, elf_rel *entry) +{ + switch (elf_r_type(entry->r_info)) { + case R_386_RELATIVE: + __relocate_rel_relative(base, entry); + break; + default: + return -1; + } + + return 0; +} + /* startup code */ /* * i386 System V ABI mandates: @@ -326,6 +348,19 @@ void __attribute__((weak, noreturn)) __nolibc_entrypoi= nt __no_stack_protector _s }) =20 #ifndef NOLIBC_NO_RUNTIME +static int __relocate_rela(unsigned long base, elf_rela *entry) +{ + switch (elf_r_type(entry->r_info)) { + case R_AMD64_RELATIVE: + __relocate_rela_relative(base, entry); + break; + default: + return -1; + } + + return 0; +} + /* startup code */ /* * x86-64 System V ABI mandates: --=20 2.51.0