git: 0cc04135734c - stable/13 - riscv: fix relocation handling for R_RISCV_64
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Date: Fri, 28 Oct 2022 14:10:54 UTC
The branch stable/13 has been updated by mhorne: URL: https://cgit.FreeBSD.org/src/commit/?id=0cc04135734c84558aa7b9386c1eda569b55b981 commit 0cc04135734c84558aa7b9386c1eda569b55b981 Author: Mitchell Horne <mhorne@FreeBSD.org> AuthorDate: 2022-10-20 14:56:59 +0000 Commit: Mitchell Horne <mhorne@FreeBSD.org> CommitDate: 2022-10-28 14:10:37 +0000 riscv: fix relocation handling for R_RISCV_64 It requires the addend. In practice this doesn't seem to be a problem, since relocations of this type are all with an addend of zero. Obviously, we still want to handle this correctly if that ever changes. Reviewed by: markj MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D37039 (cherry picked from commit a9b24e4dc28abfe668038e4c053d77b6dd4dce19) --- sys/riscv/riscv/elf_machdep.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/sys/riscv/riscv/elf_machdep.c b/sys/riscv/riscv/elf_machdep.c index 68c7afb4d09f..b3d8ac54a36d 100644 --- a/sys/riscv/riscv/elf_machdep.c +++ b/sys/riscv/riscv/elf_machdep.c @@ -340,15 +340,25 @@ elf_reloc_internal(linker_file_t lf, Elf_Addr relocbase, const void *data, break; case R_RISCV_64: + error = lookup(lf, symidx, 1, &addr); + if (error != 0) + return (-1); + + before64 = *where; + *where = addr + addend; + if (debug_kld) + printf("%p %c %-24s %016lx -> %016lx\n", where, + (local ? 'l' : 'g'), reloctype_to_str(rtype), + before64, *where); + break; + case R_RISCV_JUMP_SLOT: error = lookup(lf, symidx, 1, &addr); if (error != 0) return (-1); - val = addr; before64 = *where; - if (*where != val) - *where = val; + *where = addr; if (debug_kld) printf("%p %c %-24s %016lx -> %016lx\n", where, (local ? 'l' : 'g'), reloctype_to_str(rtype),