1# REQUIRES: x86 2 3## This tests that we can link against these synthetic symbols even 4## if they are not in the symbol table. 5 6# RUN: rm -rf %t; split-file %s %t 7 8## Test that in a dylib, we can link against __mh_dylib_header 9## (but not in other types of files) 10 11# RUN: llvm-mc %t/dylib.s -triple=x86_64-apple-macos10.15 -filetype=obj -o %t/dylib.o 12# RUN: %lld -dylib -dead_strip %t/dylib.o -o %t/dylib.out 13# RUN: llvm-objdump -m --syms %t/dylib.out | FileCheck %s --check-prefix DYLIB 14 15# RUN: not %lld -o /dev/null %t/dylib.o 2>&1 | FileCheck %s --check-prefix ERR-DYLIB 16 17# DYLIB: SYMBOL TABLE: 18# DYLIB-NEXT: {{[0-9a-f]+}} g F __TEXT,__text _main 19# DYLIB-NEXT-EMPTY: 20# ERR-DYLIB: error: undefined symbol: __mh_dylib_header 21 22## Test that in an executable, we can link against __mh_execute_header 23# RUN: llvm-mc %t/main.s -triple=x86_64-apple-macos10.15 -filetype=obj -o %t/exec.o 24# RUN: %lld -dead_strip -lSystem %t/exec.o -o %t/exec.out 25 26## But it would be an error trying to reference __mh_execute_header in a dylib 27# RUN: not %lld -o /dev/null -dylib %t/exec.o 2>&1 | FileCheck %s --check-prefix ERR-EXEC 28 29# ERR-EXEC: error: undefined symbol: __mh_execute_header 30 31#--- main.s 32.text 33.globl _main 34_main: 35 mov __mh_execute_header@GOTPCREL(%rip), %rax 36 ret 37.subsections_via_symbols 38 39#--- dylib.s 40.text 41.globl _main 42_main: 43 mov __mh_dylib_header@GOTPCREL(%rip), %rax 44 ret 45.subsections_via_symbols 46