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llvm-mirror/test/MC/ARM/multi-section-mapping.s
Fangrui Song bcae288a5c [llvm-objdump] --syms: make flags closer to GNU objdump
This fixes several issues. The behavior changes are:

A SHN_COMMON symbol does not have the 'g' flag.
An undefined symbol does not have 'g' or 'l' flag.
A STB_GLOBAL SymbolRef::ST_Unknown symbol has the 'g' flag.
A STB_LOCAL SymbolRef::ST_Unknown symbol has the 'l' flag.

Reviewed By: rupprecht

Differential Revision: https://reviews.llvm.org/D75659
2020-03-05 09:59:53 -08:00

52 lines
1.4 KiB
ArmAsm

@ RUN: llvm-mc -triple=armv7-linux-gnueabi -filetype=obj < %s | llvm-objdump -t - | FileCheck %s
.text
add r0, r0, r0
@ .wibble should *not* inherit .text's mapping symbol. It's a completely different section.
.section .wibble
add r0, r0, r0
@ A section should be able to start with a $t
.section .starts_thumb
.thumb
adds r0, r0, r0
@ A setion should be able to start with a $d
.section .starts_data
.word 42
@ Changing back to .text should not emit a redundant $a
.text
.arm
add r0, r0, r0
@ Similarly no $t if we change back .starts_thumb using .pushsection
.pushsection .starts_thumb
.thumb
adds r0, r0, r0
@ When we change back to .text using .popsection .thumb is still active, so we
@ should emit a $t
.popsection
add r0, r0, r0
@ .ident does a push then pop of the .comment section, so the .word should
@ cause $d to appear in the .text section
.ident "ident"
.word 0
@ With all those constraints, we want:
@ + .text to have $a at 0, $t at 8, $d at 12
@ + .wibble to have $a at 0
@ + .starts_thumb to have $t at 0
@ + .starts_data to have $d at 0
@ CHECK: 00000000 l .text 00000000 $a
@ CHECK-NEXT: 00000000 l .wibble 00000000 $a
@ CHECK-NEXT: 0000000a l .text 00000000 $d
@ CHECK-NEXT: 00000000 l .starts_thumb 00000000 $t
@ CHECK-NEXT: 00000008 l .text 00000000 $t
@ CHECK-NOT: ${{[adt]}}