The standard local dynamic model for TLS on ARM systems needs two
relocations:
- R_ARM_TLS_LDM32 (module idx)
- R_ARM_TLS_LDO32 (offset of object from origin of module TLS block)
In GNU style assembler we use symbol(tlsldm) and symbol(tlsldo) to
produce these relocations.
llvm-mc for ARM supports symbol(tlsldo) but does not support symbol(tlsldm).
This patch wires up the existing symbol(tlsldm) to R_ARM_TLS_LDM32.
TLS for ARM is defined in Addenda to, and Errata in, the ABI for the
ARM Architecture
Differential Revision: https://reviews.llvm.org/D22461
llvm-svn: 275977
case MCSymbolRefExpr::VK_TLSDESC:
Type = ELF::R_ARM_TLS_GOTDESC;
break;
+ case MCSymbolRefExpr::VK_TLSLDM:
+ Type = ELF::R_ARM_TLS_LDM32;
+ break;
case MCSymbolRefExpr::VK_ARM_TLSDESCSEQ:
Type = ELF::R_ARM_TLS_DESCSEQ;
break;
@CHECK: 68 R_ARM_PREL31 f26
@CHECK: 6c R_ARM_PREL31 f27
+@ tlsldm
+.word f28(TLSLDM)
+.word f29(tlsldm)
+@CHECK: 70 R_ARM_TLS_LDM32 f28
+@CHECK: 74 R_ARM_TLS_LDM32 f29
+
@ got_prel
-.word f28(GOT_PREL) + (. - .Lsym)
- ldr r3, =f29(GOT_PREL)
-@ CHECK: 70 R_ARM_GOT_PREL f28
-@ CHECK: 78 R_ARM_GOT_PREL f29
+.word f30(GOT_PREL) + (. - .Lsym)
+ ldr r3, =f31(GOT_PREL)
+@ CHECK: 78 R_ARM_GOT_PREL f30
+@ CHECK: 80 R_ARM_GOT_PREL f31