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llvm-project/lld/test/mach-o/write-final-sections.yaml

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MachO: re-enable writing of compact-unwind sections. This isn't really the right place to put them in final object files (that would be __TEXT,__unwind_info), but the format is different between relocatable and final objects, which means we really need a pass to handle the translation. For now, re-emitting in __LD,__compact_unwind is harmless (dyld ignores it and moves straight on to inspecting __TEXT,__eh_frame), and sidesteps an assertion failure when processing files containing compact-unwind info. llvm-svn: 212032
2014-06-30 17:49:37 +08:00
# RUN: lld -flavor darwin -arch x86_64 %s -o %t -e _foo
# RUN: llvm-readobj -sections -section-data %t | FileCheck %s
--- !native
defined-atoms:
# For __TEXT, __text (with typeCode)
- name: _foo
scope: global
content: [ 55 ]
# CHECK: Name: __text
# CHECK: Segment: __TEXT
# CHECK: SectionData (
MachO: stop iterating past the end of an array When trying to map atom types to sections, we were iterating through an array until we hit a sentinel value. There's no need for such dances when range-based for loops are available. llvm-svn: 212035
2014-06-30 18:30:00 +08:00
# CHECK-NEXT: 0000: 55
MachO: re-enable writing of compact-unwind sections. This isn't really the right place to put them in final object files (that would be __TEXT,__unwind_info), but the format is different between relocatable and final objects, which means we really need a pass to handle the translation. For now, re-emitting in __LD,__compact_unwind is harmless (dyld ignores it and moves straight on to inspecting __TEXT,__eh_frame), and sidesteps an assertion failure when processing files containing compact-unwind info. llvm-svn: 212032
2014-06-30 17:49:37 +08:00
# CHECK-NEXT: )
# For __TEXT, __const (with typeConstant),
- type: constant
content: [ 01, 00, 00, 00 ]
# From __TEXT, __literal4, (with typeLiteral4)
- scope: hidden
type: const-4-byte
content: [ 02, 00, 00, 00 ]
# From __TEXT, __literal8, (with typeLiteral8)
- scope: hidden
type: const-8-byte
content: [ 03, 00, 00, 00, 00, 00, 00, 00 ]
# From __TEXT, __literal16, (with typeLiteral16)
- scope: hidden
type: const-16-byte
content: [ 04, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00 ]
# CHECK: Name: __const
# CHECK: Segment: __TEXT
# CHECK: SectionData (
# CHECK-NEXT: 0000: 01000000 02000000 03000000 00000000
# CHECK-NEXT: 0010: 04000000 00000000 00000000 00000000
# CHECK-NEXT: )
# For __TEXT, __cstring (with typeCString)
- scope: hidden
type: c-string
content: [ 57, 69, 62, 62, 6C, 65, 00 ]
merge: by-content
# CHECK: Name: __cstring
# CHECK: Segment: __TEXT
# CHECK: SectionData (
# CHECK-NEXT: 0000: 57696262 6C6500
# CHECK-NEXT: )
# For __TEXT, __ustring (with typeUTF16String)
- scope: hidden
type: utf16-string
content: [ 05, 00 ]
merge: by-content
# CHECK: Name: __ustring
# CHECK: Segment: __TEXT
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0500
# CHECK-NEXT: )
# For __TEXT, __gcc_except_tab, (with typeLSDA)
- name: GCC_except_table0
type: unwind-lsda
content: [ 06, 00 ]
# CHECK: Name: __gcc_except_tab
# CHECK: Segment: __TEXT
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0600
# CHECK-NEXT: )
# For __TEXT, __eh_frame, (with typeCFI)
- type: unwind-cfi
content: [ 07 ]
# CHECK: Name: __eh_frame
# CHECK: Segment: __TEXT
# CHECK: SectionData (
# CHECK-NEXT: 0000: 07
# CHECK-NEXT: )
# For __DATA, __data, (with typeData)
- name: var
type: data
content: [ 08 ]
# CHECK: Name: __data
# CHECK: Segment: __DATA
# CHECK: SectionData (
# CHECK-NEXT: 0000: 08
# CHECK-NEXT: )
# For __DATA, ___bss (with typeZeroFill)
# FIXME: Attributes & tags of __bss are mostly broken. Should be at end of
# __DATA, should have size, should have S_ZEROFILL flag.
- type: zero-fill
size: 8
# CHECK: Name: ___bss
# CHECK: Segment: __DATA
# For __DATA, __const, (with typeConstData)
- type: const-data
content: [ 09, 00, 00, 00 ]
# CHECK: Name: __const
# CHECK: Segment: __DATA
# CHECK: SectionData (
# CHECK-NEXT: 0000: 09000000
# CHECK-NEXT: )
# For __DATA, __cfstring, (with typeCFString)
- type: cfstring
content: [ 0A, 00 ]
# CHECK: Name: __cfstring
# CHECK: Segment: __DATA
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0A00
# CHECK-NEXT: )
# For __DATA, ___got (with typeGOT)
- type: got
content: [ 0B, 00, 00, 00, 00, 00, 00, 00 ]
# CHECK: Name: ___got
# CHECK: Segment: __DATA
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0B000000 00000000
# CHECK-NEXT: )
# For __DATA, __mod_init_func (with typeInitializerPtr)
- type: initializer-pointer
content: [ 0C, 00, 00, 00, 00, 00, 00, 00 ]
# CHECK: Name: __mod_init_func
# CHECK: Segment: __DATA
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0C000000 00000000
# CHECK-NEXT: )
# For __DATA, __mod_term_func (with typeTerminatorPointer)
- type: terminator-pointer
content: [ 0D, 00, 00, 00, 00, 00, 00, 00 ]
# CHECK: Name: __mod_term_func
# CHECK: Segment: __DATA
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0D000000 00000000
# CHECK-NEXT: )
# FIXME: this should really end up in __TEXT,__unwind_info after being
# processed. Most important fact here is that its presence doesn't trigger an
# assert, but __LD,__compact_unwind is a harmless enough place to stash it.
- type: compact-unwind
content: [ 0E, 00, 00, 00, 00, 00, 00, 00 ]
# CHECK: Name: __compact_unwind
# CHECK: Segment: __LD
# CHECK: SectionData (
# CHECK-NEXT: 0000: 0E000000 00000000
# CHECK-NEXT: )
[mach-o] refactor KindHandler into ArchHandler and simplify passes. All architecture specific handling is now done in the appropriate ArchHandler subclass. The StubsPass and GOTPass have been simplified. All architecture specific variations in stubs are now encoded in a table which is vended by the current ArchHandler. llvm-svn: 213187
2014-07-17 03:49:02 +08:00
--- !mach-o
arch: x86_64
file-type: MH_DYLIB
flags: [ ]
install-name: /usr/lib/libSystem.B.dylib
sections:
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
address: 0x0000000000000000
content: [ 0x55 ]
global-symbols:
- name: dyld_stub_binder
type: N_SECT
scope: [ N_EXT ]
sect: 1
value: 0x0000000000000000