[PATCH] D147100: [lld][ELF] Support relocations R_AVR_8_LO8/R_AVR_8_HI8/R_AVR_8_HLO8

[Ben Shi via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG504df554d2cc: [lld][ELF] Support relocations R_AVR_8_LO8/R_AVR_8_HI8/R_AVR_8_HLO8 (authored by benshi001).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D147100/new/

https://reviews.llvm.org/D147100

Files:
  lld/ELF/Arch/AVR.cpp
  lld/test/ELF/avr-reloc.s


Index: lld/test/ELF/avr-reloc.s
===================================================================
--- lld/test/ELF/avr-reloc.s
+++ lld/test/ELF/avr-reloc.s
@@ -96,8 +96,11 @@
 
 .section .DATA,"ax", at progbits
 ; HEX-LABEL: section .DATA:
-; HEX-NEXT:  {{.*}} 1e1e000f 00785634 12
+; HEX-NEXT:  {{.*}} 1e1e000f 00785634 12785634
 .byte b        ; R_AVR_8
 .short b       ; R_AVR_16
 .short gs(b)   ; R_AVR_16_PM
 .long a        ; R_AVR_32
+.byte lo8(a)   ; R_AVR_8_LO8
+.byte hi8(a)   ; R_AVR_8_HI8
+.byte hlo8(a)  ; R_AVR_8_HLO8
Index: lld/ELF/Arch/AVR.cpp
===================================================================
--- lld/ELF/Arch/AVR.cpp
+++ lld/ELF/Arch/AVR.cpp
@@ -56,6 +56,9 @@
   case R_AVR_6:
   case R_AVR_6_ADIW:
   case R_AVR_8:
+  case R_AVR_8_LO8:
+  case R_AVR_8_HI8:
+  case R_AVR_8_HLO8:
   case R_AVR_16:
   case R_AVR_16_PM:
   case R_AVR_32:
@@ -99,6 +102,18 @@
     checkUInt(loc, val, 8, rel);
     *loc = val;
     break;
+  case R_AVR_8_LO8:
+    checkUInt(loc, val, 32, rel);
+    *loc = val & 0xff;
+    break;
+  case R_AVR_8_HI8:
+    checkUInt(loc, val, 32, rel);
+    *loc = (val >> 8) & 0xff;
+    break;
+  case R_AVR_8_HLO8:
+    checkUInt(loc, val, 32, rel);
+    *loc = (val >> 16) & 0xff;
+    break;
   case R_AVR_16:
     // Note: this relocation is often used between code and data space, which
     // are 0x800000 apart in the output ELF file. The bitmask cuts off the high


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