366d34b39e
This is in accordance with avr-gcc, even '-mno-relax' is specified to avr-gcc, this flag will also be added to the output relocatables. With this flag set, the GNU ld will perform long call -> short call optimization for AVR, otherwise not. Fixes https://github.com/llvm/llvm-project/issues/54508 Reviewed By: MaskRay, jacquesguan, aykevl Differential Revision: https://reviews.llvm.org/D144617
53 lines
1.5 KiB
Plaintext
53 lines
1.5 KiB
Plaintext
# REQUIRES: avr
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## Test ld.lld supports OUTPUT_FORMAT/OUTPUT_ARCH for AVR output.
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# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=avr -mcpu=atmega328 %t/avr5.s -o %t/avr5.o
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# RUN: ld.lld %t/avr5.o -T %t/avr5.lds -o %t/avr5a.out
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# RUN: llvm-objdump --no-print-imm-hex --mcpu=atmega328 -d %t/avr5a.out | FileCheck %s --check-prefix=RELOC
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# RUN: ld.lld %t/avr5.o -Ttext=0 -Tdata=0x800 -e _start -o %t/avr5b.out
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# RUN: llvm-objdump --no-print-imm-hex --mcpu=atmega328 -d %t/avr5b.out | FileCheck %s --check-prefix=RELOC
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# RELOC: ldi r24, 2
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# RELOC-NEXT: ldi r25, 8
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# RUN: llvm-readelf --headers %t/avr5a.out | FileCheck %s --check-prefix=HEAD
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# RUN: llvm-readelf --headers %t/avr5b.out | FileCheck %s --check-prefix=HEAD
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# HEAD: Atmel AVR 8-bit microcontroller
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# HEAD: 0x85, EF_AVR_ARCH_AVR5, relaxable
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# HEAD: Name Type Address Off Size
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# HEAD-NEXT: NULL 00000000 000000 000000
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# HEAD-NEXT: .text PROGBITS 00000000 001000 000006
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# HEAD-NEXT: .data PROGBITS 00000800 001800 000004
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#--- avr5.s
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.text
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.globl _start
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.p2align 1
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_start:
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ldi r24, lo8(def) ; Load lower byte of variable def 16-bit address to r24
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ldi r25, hi8(def) ; Load higher byte of variable def 16-bit address to r25
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rjmp _start
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.section .data
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.type abc, @object
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.type def, @object
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.globl abc
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.globl def
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abc:
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.short 100
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def:
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.short 200
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#--- avr5.lds
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OUTPUT_FORMAT("elf32-avr", "elf32-avr", "elf32-avr")
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OUTPUT_ARCH(avr:5)
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ENTRY(_start)
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SECTIONS {
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.text 0x000: { *(.text*) }
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.data 0x800: { *(.data*) }
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}
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