gcc may generate .debug_info/.debug_aranges/.debug_line/etc that are
relocated by R_RISCV_ADD*/R_RISCV_SUB* pairs.
Allow R_RISCV_ADD in non-SHF_ALLOC section to fix link errors like:
ld.lld: error: print.c:(.debug_frame+0x60): has non-ABS relocation R_RISCV_ADD64 against symbol '.L0 '
Differential Revision: https://reviews.llvm.org/D63259
llvm-svn: 365035
if (Expr == R_NONE)
continue;
- if (Expr != R_ABS && Expr != R_DTPREL) {
+ if (Expr != R_ABS && Expr != R_DTPREL && Expr != R_RISCV_ADD) {
std::string Msg = getLocation<ELFT>(Offset) +
": has non-ABS relocation " + toString(Type) +
" against symbol '" + toString(Sym) + "'";
.word .L1 - .L0
.half .L1 - .L0
.byte .L1 - .L0
+
+## Debug section may use R_RISCV_ADD64/R_RISCV_SUB64 pairs to measure lengths
+## of code ranges (e.g. DW_AT_high_pc). Check we allow R_RISCV_ADD*/R_RISCV_SUB*
+## in such non-SHF_ALLOC sections in -pie/-shared mode.
+.section .debug_info
+.quad .L1 - .L0