Date: Thu, 02 Jul 2020 19:53:03 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 247724] ld-elf.so.1: Unsupported relocation type 42 in non-PLT relocations [clang, llvm-devel-11.0.d20200519] Message-ID: <bug-247724-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D247724 Bug ID: 247724 Summary: ld-elf.so.1: Unsupported relocation type 42 in non-PLT relocations [clang, llvm-devel-11.0.d20200519] Product: Base System Version: 12.1-RELEASE Hardware: i386 OS: Any Status: New Severity: Affects Some People Priority: --- Component: bin Assignee: bugs@FreeBSD.org Reporter: nicholas.h.briggs@gmail.com Attachment #216152 text/plain mime type: Created attachment 216152 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D216152&action= =3Dedit C source test case The attached test case, ifunc.c (a test case from valgrind) compiled with $ clang-devel --version clang version 11.0.0=20 Target: i386-portbld-freebsd12.1 Thread model: posix InstalledDir: /usr/local/llvm-devel/bin (package info: llvm-devel-11.0.d20200519) $ clang-devel -o ifunc ifunc.c generates: $ ./ifunc ld-elf.so.1: [...]/ifunc: Unsupported relocation type 42 in non-PLT relocat= ions $ readelf -r ifunc Relocation section (.rel.dyn): r_offset r_info r_type st_value st_name 00403918 0000002a R_386_IRELATIVE 00000000=20 Relocation section (.rel.plt): r_offset r_info r_type st_value st_name 00403908 00000307 R_386_JUMP_SLOT 004017e0 _init_tls 0040390c 00000607 R_386_JUMP_SLOT 004017f0 exit 00403910 00000407 R_386_JUMP_SLOT 00401800 atexit 00403914 00000707 R_386_JUMP_SLOT 00401810 printf The same code compiled with clang8 (default compiler on 12.1-RELEASE) shows $ readelf -r ifunc Relocation section (.rel.plt): r_offset r_info r_type st_value st_name 0040201c 00000307 R_386_JUMP_SLOT 00401380 _init_tls 00402020 00000607 R_386_JUMP_SLOT 00401390 exit 00402024 00000407 R_386_JUMP_SLOT 004013a0 atexit 00402028 00000707 R_386_JUMP_SLOT 004013b0 printf 0040202c 0000002a R_386_IRELATIVE 00000000 --=20 You are receiving this mail because: You are the assignee for the bug.=
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