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5fbe5e783e
.cfi_startproc. e.g. libffi:
$ cat confopt.c
asm (".cfi_startproc\n\t.cfi_endproc");
int main () { return 0; }
Teach MC / dwarf emission to handle these cfi directives which essentially
create an empty frame.
rdar://10017184
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138504 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.4 KiB
ArmAsm
48 lines
1.4 KiB
ArmAsm
// RUN: llvm-mc -triple i386-apple-darwin %s -filetype=obj -o - | macho-dump | FileCheck %s
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// Make sure MC can handle file level .cfi_startproc and .cfi_endproc that creates
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// an empty frame.
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// rdar://10017184
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.cfi_startproc
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.cfi_endproc
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// Check that we don't produce a relocation for the CIE pointer and therefore
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// we have only one relocation in __debug_frame.
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.section __TEXT,__text,regular,pure_instructions
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.globl _f
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.align 4, 0x90
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_f: ## @f
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Ltmp0:
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.cfi_startproc
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## BB#0: ## %entry
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movl $42, %eax
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ret
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Ltmp1:
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.cfi_endproc
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Leh_func_end0:
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.cfi_sections .debug_frame
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Ltext_end:
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// CHECK: (('section_name', '__debug_frame\x00\x00\x00')
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// CHECK-NEXT: ('segment_name', '__DWARF\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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// CHECK-NEXT: ('address', 8)
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// CHECK-NEXT: ('size', 52)
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// CHECK-NEXT: ('offset', 332)
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// CHECK-NEXT: ('alignment', 2)
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// CHECK-NEXT: ('reloc_offset', 384)
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// CHECK-NEXT: ('num_reloc', 2)
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// CHECK-NEXT: ('flags', 0x2000000)
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// CHECK-NEXT: ('reserved1', 0)
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// CHECK-NEXT: ('reserved2', 0)
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// CHECK-NEXT: ),
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// CHECK-NEXT: ('_relocations', [
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// CHECK-NEXT: # Relocation 0
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// CHECK-NEXT: (('word-0', 0x2c),
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// CHECK-NEXT: ('word-1', 0x4000001)),
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// CHECK-NEXT: # Relocation 1
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// CHECK-NEXT: (('word-0', 0x1c),
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// CHECK-NEXT: ('word-1', 0x4000001)),
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// CHECK-NEXT: ])
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