[ASan] Added back @PLT to __asan_report_* calls to avoid compile errors.

[MaskRay]

On x86-64, jmp foo is identical to jmp foo@PLT for GNU as/llvm mc newer than ~2018-02. Older assemblers may produce R_X86_64_PC32 and lead to a linker error is the symbol is defined in another DSO.

[kstoimenov]

In D121409#3373676, @MaskRay wrote:

On x86-64, jmp foo is identical to jmp foo@PLT for GNU as/llvm mc newer than ~2018-02. Older assemblers may produce R_X86_64_PC32 and lead to a linker error is the symbol is defined in another DSO.

This patch fixed this bot failure: https://lab.llvm.org/buildbot/#/builders/165/builds/17497

Maybe they are using older compiler version?

compiler-rt/lib/asan/asan_rtl_x86_64.S

 CLABEL(reg, op, 1, i): ;\
         push   %rcx ;\
         mov    %##reg,%rcx ;\
         and    $0x7,%ecx ;\
         cmp    %r10d,%ecx ;\
         pop    %rcx ;\
         jl     RLABEL(reg, op, 1, i);\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##1 ;\
+        jmp    __asan_report_##op##1@PLT ;\
 
 #define ASAN_MEMORY_ACCESS_EXTRA_CHECK_2(reg, op, i) \
 CLABEL(reg, op, 2, i): ;\
         push   %rcx ;\
         mov    %##reg,%rcx ;\
         and    $0x7,%ecx ;\
         add    $0x1,%ecx ;\
         cmp    %r10d,%ecx ;\
         pop    %rcx ;\
         jl     RLABEL(reg, op, 2, i);\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##2 ;\
+        jmp    __asan_report_##op##2@PLT ;\
 
 #define ASAN_MEMORY_ACCESS_EXTRA_CHECK_4(reg, op, i) \
 CLABEL(reg, op, 4, i): ;\
         push   %rcx ;\
         mov    %##reg,%rcx ;\
         and    $0x7,%ecx ;\
         add    $0x3,%ecx ;\
         cmp    %r10d,%ecx ;\
         pop    %rcx ;\
         jl     RLABEL(reg, op, 4, i);\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##4 ;\
+        jmp    __asan_report_##op##4@PLT ;\
 
 #define ASAN_MEMORY_ACCESS_CALLBACK_ADD_1(reg, op) \
 BEGINF(reg, op, 1, add) ;\
         ASAN_MEMORY_ACCESS_INITIAL_CHECK_ADD(reg, op, 1) ;\
         ASAN_MEMORY_ACCESS_EXTRA_CHECK_1(reg, op, add) ;\
 ENDF
 
 #define ASAN_MEMORY_ACCESS_CALLBACK_ADD_2(reg, op) \
#define ASAN_MEMORY_ACCESS_CHECK_ADD(reg, op, s, c) \
         shr    $0x3,%r10 ;\
         ##c    $0x0,ASAN_SHADOW_OFFSET_CONST(%r10) ;\
         jne    FLABEL(reg, op, s, add) ;\
         retq  ;\
 
 #define ASAN_MEMORY_ACCESS_FAIL(reg, op, s, i) \
 FLABEL(reg, op, s, i): ;\
         mov    %##reg,%rdi ;\
-        jmp    __asan_report_##op##s##;\
+        jmp    __asan_report_##op##s@PLT;\
 
 #define ASAN_MEMORY_ACCESS_CALLBACK_ADD_8(reg, op) \
 BEGINF(reg, op, 8, add) ;\
         ASAN_MEMORY_ACCESS_CHECK_ADD(reg, op, 8, cmpb) ;\
         ASAN_MEMORY_ACCESS_FAIL(reg, op, 8, add) ;\
 ENDF
 
 #define ASAN_MEMORY_ACCESS_CALLBACK_ADD_16(reg, op) \