[PATCH] D125544: [lld][ELF] Support linking 'elf32-avr' with linker scripts

[Ben Shi via Phabricator via llvm-commits]

benshi001 created this revision.
benshi001 added a reviewer: MaskRay.
Herald added subscribers: StephenFan, Jim, arichardson, emaste, dylanmckay.
Herald added a project: All.
benshi001 requested review of this revision.
Herald added subscribers: llvm-commits, jacquesguan.
Herald added a project: LLVM.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D125544

Files:
  lld/ELF/ScriptParser.cpp
  lld/test/ELF/linkerscript/Inputs/avr5.s
  lld/test/ELF/linkerscript/avr5.test


Index: lld/test/ELF/linkerscript/avr5.test
===================================================================
--- /dev/null
+++ lld/test/ELF/linkerscript/avr5.test
@@ -0,0 +1,28 @@
+# REQUIRES: avr
+
+# RUN: llvm-mc -filetype=obj -triple=avr -mattr=+avr5 %p/Inputs/avr5.s -o %t
+# RUN: ld.lld %t --script %s -o %t1
+# RUN: llvm-readelf --sections %t1 | FileCheck %s --check-prefix=SEC
+# RUN: llvm-objdump --mattr=+avr5 -d %t1 | FileCheck %s --check-prefix=ASM
+
+# SEC:      Name     Type      Address   Off     Size
+# SEC-NEXT:          NULL      00000000  000000  000000
+# SEC-NEXT: .text    PROGBITS  00000000  001000  00000e
+# SEC-NEXT: .data    PROGBITS  00000100  001100  000002
+
+# ASM:      ldi  r24, 10
+# ASM-NEXT: ldi  r25, 20
+# ASM-NEXT: sts  257, r25
+# ASM-NEXT: sts  256, r24
+
+OUTPUT_FORMAT("elf32-avr", "elf32-avr", "elf32-avr")
+OUTPUT_ARCH(avr:5)
+
+ENTRY(_start)
+
+SECTIONS {
+  . = 0;
+  .text : { *(.text*) }
+  . = 256;
+  .data : { *(.data*) }
+}
Index: lld/test/ELF/linkerscript/Inputs/avr5.s
===================================================================
--- /dev/null
+++ lld/test/ELF/linkerscript/Inputs/avr5.s
@@ -0,0 +1,15 @@
+	.text
+	.globl _start
+	.p2align 1
+_start:
+	ldi   r24, 10
+	ldi   r25, 20
+	sts   abc+1, r25
+	sts   abc, r24
+	rjmp  _start
+
+	.type abc, @object
+	.section .data
+	.globl abc
+abc:
+	.short 100
Index: lld/ELF/ScriptParser.cpp
===================================================================
--- lld/ELF/ScriptParser.cpp
+++ lld/ELF/ScriptParser.cpp
@@ -436,6 +436,7 @@
       .Case("elf64-littleriscv", {ELF64LEKind, EM_RISCV})
       .Case("elf64-sparc", {ELF64BEKind, EM_SPARCV9})
       .Case("elf32-msp430", {ELF32LEKind, EM_MSP430})
+      .Case("elf32-avr", {ELF32LEKind, EM_AVR})
       .Default({ELFNoneKind, EM_NONE});
 }
 


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