derek.holloway
7502bf64a4
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86 lines
2.4 KiB
ArmAsm
86 lines
2.4 KiB
ArmAsm
# REQUIRES: hexagon
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# RUN: rm -rf %t && split-file %s %t && cd %t
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# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf main.s -o main.o
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# RUN: ld.lld -shared main.o -o test.so
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# RUN: llvm-objdump -d --no-show-raw-insn test.so | FileCheck %s
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## Test thunk range scenarios for Hexagon R_HEX_GD_PLT_B22_PCREL relocations.
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## Same ±8MB range as regular calls.
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#--- main.s
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.globl _start
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.type _start, @function
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_start:
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## Setup for TLS Global Dynamic calls
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r2 = add(pc,##_GLOBAL_OFFSET_TABLE_@PCREL)
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## Test TLS GD PLT calls
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r0 = add(r2,##tls_var_close@GDGOT)
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call tls_var_close@GDPLT
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r0 = add(r2,##tls_var_far@GDGOT)
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call tls_var_far@GDPLT
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jumpr r31
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.skip 0x400000
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more_code:
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r0 = add(r2,##tls_var_distant@GDGOT)
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call tls_var_distant@GDPLT
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jumpr r31
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## TLS variables in .tdata section
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.section .tdata,"awT",@progbits
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.globl tls_var_close, tls_var_far, tls_var_distant
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.type tls_var_close, @object
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.type tls_var_far, @object
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.type tls_var_distant, @object
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tls_var_close:
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.word 0x1234
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tls_var_far:
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.word 0x5678
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tls_var_distant:
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.word 0x9abc
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# CHECK: Disassembly of section .text:
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# CHECK: <_start>:
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# CHECK-NEXT: 102b0: { immext(#0x420100)
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# CHECK-NEXT: r2 = add(pc,##0x420104) }
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# CHECK-NEXT: { immext(#0xfffeffc0)
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# CHECK-NEXT: r0 = add(r2,##-0x10018) }
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# CHECK-NEXT: { call 0x410310 <__tls_get_addr@plt> }
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# CHECK-NEXT: { immext(#0xfffeffc0)
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# CHECK-NEXT: r0 = add(r2,##-0x10010) }
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# CHECK-NEXT: { call 0x410310 <__tls_get_addr@plt> }
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# CHECK-NEXT: { jumpr r31 }
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# CHECK: <more_code>:
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# CHECK-NEXT: 4102d4: { immext(#0xfffeffc0)
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# CHECK-NEXT: r0 = add(r2,##-0x10008) }
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# CHECK-NEXT: { call 0x410310 <__tls_get_addr@plt> }
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# CHECK-NEXT: { jumpr r31 }
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## Verify PLT entry is created for __tls_get_addr
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## TLS symbols (tls_var_close, tls_var_far, tls_var_distant) should NOT have
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## PLT entries - only __tls_get_addr needs one.
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# CHECK: Disassembly of section .plt:
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# CHECK: <.plt>:
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# CHECK-NEXT: 4102f0: { immext(#0x200c0)
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# CHECK-NEXT: r28 = add(pc,##0x200c4) }
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# CHECK-NEXT: { r14 -= add(r28,#0x10)
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# CHECK-NEXT: r15 = memw(r28+#0x8)
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# CHECK-NEXT: r28 = memw(r28+#0x4) }
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# CHECK-NEXT: { r14 = asr(r14,#0x2)
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# CHECK-NEXT: jumpr r28 }
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# CHECK-NEXT: { trap0(#0xdb) }
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# CHECK: <__tls_get_addr@plt>:
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# CHECK-NEXT: 410310: { immext(#0x20080)
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# CHECK-NEXT: r14 = add(pc,##0x200b4) }
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# CHECK-NEXT: { r28 = memw(r14+#0x0) }
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# CHECK-NEXT: { jumpr r28 }
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