diff --git a/kexec-tools-2.0.23-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch b/kexec-tools-2.0.23-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch deleted file mode 100644 index 10bc5ef..0000000 --- a/kexec-tools-2.0.23-s390_handle_R_390_PLT32DBL_reloc_entries_in_machine_apply_elf_rel_.patch +++ /dev/null @@ -1,95 +0,0 @@ -commit 186e7b0752d8fce1618fa37519671c834c46340e -Author: Alexander Egorenkov -Date: Wed Dec 15 18:48:53 2021 +0100 - - s390: handle R_390_PLT32DBL reloc entries in machine_apply_elf_rel() - - Starting with gcc 11.3, the C compiler will generate PLT-relative function - calls even if they are local and do not require it. Later on during linking, - the linker will replace all PLT-relative calls to local functions with - PC-relative ones. Unfortunately, the purgatory code of kexec/kdump is - not being linked as a regular executable or shared library would have been, - and therefore, all PLT-relative addresses remain in the generated purgatory - object code unresolved. This in turn lets kexec-tools fail with - "Unknown rela relocation: 0x14 0x73c0901c" for such relocation types. - - Furthermore, the clang C compiler has always behaved like described above - and this commit should fix the purgatory code built with the latter. - - Because the purgatory code is no regular executable or shared library, - contains only calls to local functions and has no PLT, all R_390_PLT32DBL - relocation entries can be resolved just like a R_390_PC32DBL one. - - * https://refspecs.linuxfoundation.org/ELF/zSeries/lzsabi0_zSeries/x1633.html#AEN1699 - - Relocation entries of purgatory code generated with gcc 11.3 - ------------------------------------------------------------ - - $ readelf -r purgatory/purgatory.o - - Relocation section '.rela.text' at offset 0x6e8 contains 27 entries: - Offset Info Type Sym. Value Sym. Name + Addend - 00000000000c 000300000013 R_390_PC32DBL 0000000000000000 .data + 2 - 00000000001a 001000000014 R_390_PLT32DBL 0000000000000000 sha256_starts + 2 - 000000000030 001100000014 R_390_PLT32DBL 0000000000000000 sha256_update + 2 - 000000000046 001200000014 R_390_PLT32DBL 0000000000000000 sha256_finish + 2 - 000000000050 000300000013 R_390_PC32DBL 0000000000000000 .data + 102 - 00000000005a 001300000014 R_390_PLT32DBL 0000000000000000 memcmp + 2 - ... - 000000000118 001600000014 R_390_PLT32DBL 0000000000000000 setup_arch + 2 - 00000000011e 000300000013 R_390_PC32DBL 0000000000000000 .data + 2 - 00000000012c 000f00000014 R_390_PLT32DBL 0000000000000000 verify_sha256_digest + 2 - 000000000142 001700000014 R_390_PLT32DBL 0000000000000000 - post_verification[...] + 2 - - Relocation entries of purgatory code generated with gcc 11.2 - ------------------------------------------------------------ - - $ readelf -r purgatory/purgatory.o - - Relocation section '.rela.text' at offset 0x6e8 contains 27 entries: - Offset Info Type Sym. Value Sym. Name + Addend - 00000000000e 000300000013 R_390_PC32DBL 0000000000000000 .data + 2 - 00000000001c 001000000013 R_390_PC32DBL 0000000000000000 sha256_starts + 2 - 000000000036 001100000013 R_390_PC32DBL 0000000000000000 sha256_update + 2 - 000000000048 001200000013 R_390_PC32DBL 0000000000000000 sha256_finish + 2 - 000000000052 000300000013 R_390_PC32DBL 0000000000000000 .data + 102 - 00000000005c 001300000013 R_390_PC32DBL 0000000000000000 memcmp + 2 - ... - 00000000011a 001600000013 R_390_PC32DBL 0000000000000000 setup_arch + 2 - 000000000120 000300000013 R_390_PC32DBL 0000000000000000 .data + 122 - 000000000130 000f00000013 R_390_PC32DBL 0000000000000000 verify_sha256_digest + 2 - 000000000146 001700000013 R_390_PC32DBL 0000000000000000 post_verification[...] + 2 - - Corresponding s390 kernel discussion: - * https://lore.kernel.org/linux-s390/20211208105801.188140-1-egorenar@linux.ibm.com/T/#u - - Signed-off-by: Alexander Egorenkov - Reported-by: Tao Liu - Suggested-by: Philipp Rudo - Reviewed-by: Philipp Rudo - [hca@linux.ibm.com: changed commit message as requested by Philipp Rudo] - Signed-off-by: Heiko Carstens - Signed-off-by: Simon Horman - -diff --git a/kexec/arch/s390/kexec-elf-rel-s390.c b/kexec/arch/s390/kexec-elf-rel-s390.c -index a5e1b73455785ae3bc3aa72b3beee13ae202e82f..91ba86a9991dad4271b834fc3b24861c40309e52 100644 ---- a/kexec/arch/s390/kexec-elf-rel-s390.c -+++ b/kexec/arch/s390/kexec-elf-rel-s390.c -@@ -56,6 +56,7 @@ void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), - case R_390_PC16: /* PC relative 16 bit. */ - case R_390_PC16DBL: /* PC relative 16 bit shifted by 1. */ - case R_390_PC32DBL: /* PC relative 32 bit shifted by 1. */ -+ case R_390_PLT32DBL: /* 32 bit PC rel. PLT shifted by 1. */ - case R_390_PC32: /* PC relative 32 bit. */ - case R_390_PC64: /* PC relative 64 bit. */ - val -= address; -@@ -63,7 +64,7 @@ void machine_apply_elf_rel(struct mem_ehdr *UNUSED(ehdr), - *(unsigned short *) loc = val; - else if (r_type == R_390_PC16DBL) - *(unsigned short *) loc = val >> 1; -- else if (r_type == R_390_PC32DBL) -+ else if (r_type == R_390_PC32DBL || r_type == R_390_PLT32DBL) - *(unsigned int *) loc = val >> 1; - else if (r_type == R_390_PC32) - *(unsigned int *) loc = val;