maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/lld/test/mach-o/hello-world-armv7.yaml

77 lines
2.5 KiB
YAML
Raw Normal View History

Delete unnecessary generality in loadFile. loadFile could load mulitple files just because yaml has a feature for putting multiple documents in one file. Designing a linker around what yaml can do seems like a bad idea to me. This patch changes it to read a single file. There are further improvements to be done to the api and they will follow shortly. llvm-svn: 235724
2015-04-24 23:51:45 +08:00
# RUN: lld -flavor darwin -arch armv7 %s %p/Inputs/hello-world-armv7.yaml -o %t
[mach-o] set ordinal in n_desc for undefined symbols Mach-o uses "two-level namespace" where each undefined symbols is associated with a specific dylib. This means at runtime the loader (dyld) does need to search all loaded dylibs for that symbol but rather just the one specified. Now that llvm-nm -m prints out that info, properly set that info, and test it in the hello world test cases. llvm-svn: 215598
2014-08-14 07:11:42 +08:00
# RUN: llvm-nm -m -n %t | FileCheck %s
[mach-o] Implement interworking between thumb and arm code All iOS arm processor support switching between arm and thumb mode at call sites by using the BLX instruction (instead of BL). But the compiler does not know the implementation mode for extern functions, so the linker must update BL/BLX instructions to match what is linked is actually linked together. In addition, pointers to functions (such as vtables) must have the low bit set if the target of the pointer is a thumb mode function. llvm-svn: 214140
2014-07-29 07:06:09 +08:00
#
# Test that armv7 (thumb) hello-world can be linked into a mach-o executable
#
--- !mach-o
arch: armv7
file-type: MH_OBJECT
flags: [ MH_SUBSECTIONS_VIA_SYMBOLS ]
has-UUID: false
OS: unknown
Remove trailing whitespace characters. llvm-svn: 235897
2015-04-28 01:18:04 +08:00
sections:
[mach-o] Implement interworking between thumb and arm code All iOS arm processor support switching between arm and thumb mode at call sites by using the BLX instruction (instead of BL). But the compiler does not know the implementation mode for extern functions, so the linker must update BL/BLX instructions to match what is linked is actually linked together. In addition, pointers to functions (such as vtables) must have the low bit set if the target of the pointer is a thumb mode function. llvm-svn: 214140
2014-07-29 07:06:09 +08:00
- segment: __TEXT
section: __text
type: S_REGULAR
attributes: [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
alignment: 2
address: 0x0000000000000000
Remove trailing whitespace characters. llvm-svn: 235897
2015-04-28 01:18:04 +08:00
content: [ 0x80, 0xB5, 0x40, 0xF2, 0x06, 0x00, 0x6F, 0x46,
0xC0, 0xF2, 0x00, 0x00, 0x78, 0x44, 0xFF, 0xF7,
[mach-o] Implement interworking between thumb and arm code All iOS arm processor support switching between arm and thumb mode at call sites by using the BLX instruction (instead of BL). But the compiler does not know the implementation mode for extern functions, so the linker must update BL/BLX instructions to match what is linked is actually linked together. In addition, pointers to functions (such as vtables) must have the low bit set if the target of the pointer is a thumb mode function. llvm-svn: 214140
2014-07-29 07:06:09 +08:00
0xF8, 0xEF, 0x00, 0x20, 0x80, 0xBD ]
Remove trailing whitespace characters. llvm-svn: 235897
2015-04-28 01:18:04 +08:00
relocations:
[mach-o] Implement interworking between thumb and arm code All iOS arm processor support switching between arm and thumb mode at call sites by using the BLX instruction (instead of BL). But the compiler does not know the implementation mode for extern functions, so the linker must update BL/BLX instructions to match what is linked is actually linked together. In addition, pointers to functions (such as vtables) must have the low bit set if the target of the pointer is a thumb mode function. llvm-svn: 214140
2014-07-29 07:06:09 +08:00
- offset: 0x0000000E
type: ARM_THUMB_RELOC_BR22
length: 2
pc-rel: true
extern: true
symbol: 1
- offset: 0x00000008
scattered: true
type: ARM_RELOC_HALF_SECTDIFF
length: 3
pc-rel: false
value: 0x00000016
- offset: 0x00000006
scattered: true
type: ARM_RELOC_PAIR
length: 3
pc-rel: false
value: 0x0000000C
- offset: 0x00000002
scattered: true
type: ARM_RELOC_HALF_SECTDIFF
length: 2
pc-rel: false
value: 0x00000016
- offset: 0x00000000
scattered: true
type: ARM_RELOC_PAIR
length: 2
pc-rel: false
value: 0x0000000C
- segment: __TEXT
section: __cstring
type: S_CSTRING_LITERALS
attributes: [ ]
address: 0x0000000000000016
content: [ 0x68, 0x65, 0x6C, 0x6C, 0x6F, 0x0A, 0x00 ]
Remove trailing whitespace characters. llvm-svn: 235897
2015-04-28 01:18:04 +08:00
global-symbols:
[mach-o] Implement interworking between thumb and arm code All iOS arm processor support switching between arm and thumb mode at call sites by using the BLX instruction (instead of BL). But the compiler does not know the implementation mode for extern functions, so the linker must update BL/BLX instructions to match what is linked is actually linked together. In addition, pointers to functions (such as vtables) must have the low bit set if the target of the pointer is a thumb mode function. llvm-svn: 214140
2014-07-29 07:06:09 +08:00
- name: _main
type: N_SECT
scope: [ N_EXT ]
sect: 1
desc: [ N_ARM_THUMB_DEF ]
value: 0x0000000000000000
Remove trailing whitespace characters. llvm-svn: 235897
2015-04-28 01:18:04 +08:00
undefined-symbols:
[mach-o] Implement interworking between thumb and arm code All iOS arm processor support switching between arm and thumb mode at call sites by using the BLX instruction (instead of BL). But the compiler does not know the implementation mode for extern functions, so the linker must update BL/BLX instructions to match what is linked is actually linked together. In addition, pointers to functions (such as vtables) must have the low bit set if the target of the pointer is a thumb mode function. llvm-svn: 214140
2014-07-29 07:06:09 +08:00
- name: _printf
type: N_UNDF
scope: [ N_EXT ]
value: 0x0000000000000000
...
[mach-o] set ordinal in n_desc for undefined symbols Mach-o uses "two-level namespace" where each undefined symbols is associated with a specific dylib. This means at runtime the loader (dyld) does need to search all loaded dylibs for that symbol but rather just the one specified. Now that llvm-nm -m prints out that info, properly set that info, and test it in the hello world test cases. llvm-svn: 215598
2014-08-14 07:11:42 +08:00
# CHECK: (undefined) external _printf (from libSystem)
# CHECK: (undefined) external dyld_stub_binder (from libSystem)
Update for llvm change. llvm-svn: 241489
2015-07-07 03:21:08 +08:00
# CHECK: {{[0-9a-f]+}} (__TEXT,__text) external [Thumb] _main