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llvm-project/llvm/test/MC/MachO/debug_frame.s

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On MachO, unlike ELF, there should be no relocation to produce the CIE pointer. llvm-svn: 131149
2011-05-11 04:59:42 +08:00
// RUN: llvm-mc -triple i386-apple-darwin %s -filetype=obj -o - | macho-dump | FileCheck %s
Some autoconf tests use module level inline asm to test compiler's handling of .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 llvm-svn: 138504
2011-08-25 06:31:37 +08:00
// Make sure MC can handle file level .cfi_startproc and .cfi_endproc that creates
// an empty frame.
// rdar://10017184
[MC] Emit an error if cfi_startproc is used before a symbol is defined. Currently, we bind those directives with the last symbol, so if none has been defined, this would lead to a crash of the compiler. <rdar://problem/15939159> llvm-svn: 206236
2014-04-15 09:17:45 +08:00
_proc:
Some autoconf tests use module level inline asm to test compiler's handling of .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 llvm-svn: 138504
2011-08-25 06:31:37 +08:00
.cfi_startproc
.cfi_endproc
On MachO, unlike ELF, there should be no relocation to produce the CIE pointer. llvm-svn: 131149
2011-05-11 04:59:42 +08:00
// Check that we don't produce a relocation for the CIE pointer and therefore
// we have only one relocation in __debug_frame.
.section __TEXT,__text,regular,pure_instructions
.globl _f
.align 4, 0x90
_f: ## @f
Ltmp0:
.cfi_startproc
## BB#0: ## %entry
movl $42, %eax
ret
Ltmp1:
.cfi_endproc
Leh_func_end0:
.cfi_sections .debug_frame
Ltext_end:
// CHECK: (('section_name', '__debug_frame\x00\x00\x00')
// CHECK-NEXT: ('segment_name', '__DWARF\x00\x00\x00\x00\x00\x00\x00\x00\x00')
// CHECK-NEXT: ('address', 8)
Some autoconf tests use module level inline asm to test compiler's handling of .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 llvm-svn: 138504
2011-08-25 06:31:37 +08:00
// CHECK-NEXT: ('size', 52)
On MachO, unlike ELF, there should be no relocation to produce the CIE pointer. llvm-svn: 131149
2011-05-11 04:59:42 +08:00
// CHECK-NEXT: ('offset', 332)
// CHECK-NEXT: ('alignment', 2)
Some autoconf tests use module level inline asm to test compiler's handling of .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 llvm-svn: 138504
2011-08-25 06:31:37 +08:00
// CHECK-NEXT: ('reloc_offset', 384)
// CHECK-NEXT: ('num_reloc', 2)
On MachO, unlike ELF, there should be no relocation to produce the CIE pointer. llvm-svn: 131149
2011-05-11 04:59:42 +08:00
// CHECK-NEXT: ('flags', 0x2000000)
// CHECK-NEXT: ('reserved1', 0)
// CHECK-NEXT: ('reserved2', 0)
// CHECK-NEXT: ),
// CHECK-NEXT: ('_relocations', [
// CHECK-NEXT: # Relocation 0
Some autoconf tests use module level inline asm to test compiler's handling of .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 llvm-svn: 138504
2011-08-25 06:31:37 +08:00
// CHECK-NEXT: (('word-0', 0x2c),
// CHECK-NEXT: ('word-1', 0x4000001)),
// CHECK-NEXT: # Relocation 1
On MachO, unlike ELF, there should be no relocation to produce the CIE pointer. llvm-svn: 131149
2011-05-11 04:59:42 +08:00
// CHECK-NEXT: (('word-0', 0x1c),
// CHECK-NEXT: ('word-1', 0x4000001)),
// CHECK-NEXT: ])