59 lines
2.6 KiB
Text
59 lines
2.6 KiB
Text
# REQUIRES: x86
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# RUN: split-file %s %t
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# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
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## Check if the linker can generate the final file, containing all non-empty sections,
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## without warnings for .intvec0_out, .intvec1_out1, .intvec2_out, because their
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## input sections are empty. Althoung, the linker must generate a warning for the
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## first ".nonalloc" section and the second .dat, as expected.
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# RUN: ld.lld %t/a.o -T %t/a.lds -o %t/a.elf 2>&1 | FileCheck %s --check-prefix=WARN --implicit-check-not=warning:
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# WARN: warning: ignoring memory region assignment for non-allocatable section '.nonalloc'
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# WARN: warning: ignoring memory region assignment for non-allocatable section '.dat'
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## The output file must include all sections.
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# RUN: llvm-readelf -S %t/a.elf | FileCheck %s
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# CHECK: There are 12 section headers, starting at offset 0x2140:
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# CHECK: [Nr] Name Type Address Off Size ES Flg Lk Inf Al
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# CHECK-NEXT: [ 0] NULL 0000000000000000 000000 000000 00 0 0 0
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# CHECK-NEXT: [ 1] .nonalloc PROGBITS 0000000000000000 001064 001000 00 W 0 0 1
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# CHECK-NEXT: [ 2] .comment PROGBITS 0000000000000000 {{.*}} {{.*}} 01 MS 0 0 1
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# CHECK-NEXT: [ 3] .symtab SYMTAB 0000000000000000 {{.*}} {{.*}} 18 5 1 8
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# CHECK-NEXT: [ 4] .shstrtab STRTAB 0000000000000000 {{.*}} {{.*}} 00 0 0 1
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# CHECK-NEXT: [ 5] .strtab STRTAB 0000000000000000 {{.*}} {{.*}} 00 0 0 1
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# CHECK-NEXT: [ 6] .dat PROGBITS 0000000000000000 002137 000004 00 W 0 0 1
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# CHECK-NEXT: [ 7] .intvec0_out PROGBITS 0000000000000000 00213b 000000 00 W 0 0 1
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# CHECK-NEXT: [ 8] .intvec1_out PROGBITS 0000000000000000 00213b 000000 00 W 0 0 1
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# CHECK-NEXT: [ 9] .intvec2_out PROGBITS 0000000000000000 00213b 000000 00 W 0 0 1
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# CHECK-NEXT: [10] .intvec3_out PROGBITS 00000000803fe060 001060 000004 00 AX 0 0 1
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# CHECK-NEXT: [11] .text PROGBITS 00000000803fe064 001064 000000 00 AX 0 0 4
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#--- a.s
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.global _start
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.text
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_start:
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.section .nonalloc,"w"
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.zero 0x1000
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.section .intvec3,"ax",@progbits
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.long 1
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#--- a.lds
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MEMORY {
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MEM1 : ORIGIN = 0x10000000, LENGTH = 1M
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MEM2 (rx) : ORIGIN = 0x80000000, LENGTH = 4M
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}
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VEC_START = 0x803FE000;
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SECTIONS {
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.nonalloc : { *(.nonalloc) } > MEM
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.dat : { LONG(0); } > MEM1
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.intvec0_out (VEC_START + 0x0000) : {KEEP (*(.intvec1)) } > MEM2
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.intvec1_out (VEC_START + 0x0020) : {KEEP (*(.intvec1)) } > MEM2
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.intvec2_out (VEC_START + 0x0040) : {KEEP (*(.intvec2)) } > MEM2
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.intvec3_out (VEC_START + 0x0060) : {KEEP (*(.intvec3)) } > MEM2
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}
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