From 00a17c6ad068c95019e1f37cfc2d1b8aaebd6ecb Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Sun, 2 Jul 2023 07:46:21 -0700 Subject: Gold: Handle R_X86_64_CODE_4_GOTPC32_TLSDESC/R_X86_64_CODE_4_GOTTPOFF Handle R_X86_64_CODE_4_GOTTPOFF and R_X86_64_CODE_4_GOTPC32_TLSDESC. Convert add name@gottpoff(%rip), %reg mov name@gottpoff(%rip), %reg to add $name@tpoff, %reg mov $name@tpoff, %reg and lea name@tlsdesc(%rip), %reg to mov $name@tpoff, %reg mov name@gottpoff(%rip), %reg if the instruction is encoded with the REX2 prefix when possible. elfcpp/ * x86_64.h (R_X86_64_CODE_4_GOTTPOFF): New. (R_X86_64_CODE_4_GOTPC32_TLSDESC): Likewise. gold/ * x86_64.cc (Target_x86_64::optimize_tls_reloc): Handle R_X86_64_CODE_4_GOTPC32_TLSDESC and R_X86_64_CODE_4_GOTTPOFF. (Target_x86_64::Scan::get_reference_flags): Likewise. (Target_x86_64::Scan::local): Likewise. (Target_x86_64::Scan::global): Likewise. (Target_x86_64::Relocate::relocate): Likewise. (Target_x86_64::Relocate::relocate_tls): Likewise. (Target_x86_64::Relocate::tls_desc_gd_to_ie): Handle R_X86_64_CODE_4_GOTPC32_TLSDESC. (Target_x86_64::Relocate::tls_desc_gd_to_le): Likewise. (Target_x86_64::Relocate::tls_ie_to_le): Handle. R_X86_64_CODE_4_GOTTPOFF. * testsuite/Makefile.am: Add x86_64_ie_to_le test. * testsuite/Makefile.in: Regenerated. * testsuite/x86_64_gd_to_le.s: Add R_X86_64_CODE_4_GOTPC32_TLSDESC test. * testsuite/x86_64_gd_to_le.sh: Check GDesc to LE conversion. * testsuite/x86_64_ie_to_le.s: New file. * testsuite/x86_64_ie_to_le.sh: Likewise. --- elfcpp/x86_64.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'elfcpp') diff --git a/elfcpp/x86_64.h b/elfcpp/x86_64.h index 97a87ae..da6ac19 100644 --- a/elfcpp/x86_64.h +++ b/elfcpp/x86_64.h @@ -102,6 +102,14 @@ enum // GOT if the instruction starts at 4 // bytes before the relocation offset, // relaxable. + R_X86_64_CODE_4_GOTTPOFF = 44, // 32 bit signed PC relative offset to + // GOT entry for IE symbol if the + // instruction starts at 4 bytes before + // the relocation offset. + R_X86_64_CODE_4_GOTPC32_TLSDESC = 45, // 32-bit PC relative to TLS + // descriptor in GOT if the + // instruction starts at 4 bytes + // before the relocation offset. // GNU vtable garbage collection extensions. R_X86_64_GNU_VTINHERIT = 250, R_X86_64_GNU_VTENTRY = 251 -- cgit v1.1