| # REQUIRES: ppc |
| # RUN: split-file %s %t |
| # RUN: llvm-mc --triple=ppc64le %t/a.s --filetype=obj -o %t/a.o |
| # RUN: llvm-mc --triple=ppc64le %t/b.s --filetype=obj -o %t/b.o |
| # RUN: llvm-mc --triple=ppc64le %t/tga.s --filetype=obj -o %t/tga.o |
| |
| ## User code can call __tls_get_addr by specifying the tls_index parameter. |
| ## We need to allow R_PPC64_REL24/R_PPC64_REL24_NOTOC referencing __tls_get_addr |
| ## without a pairing R_PPC64_TLSGD/R_PPC64_TLSLD. |
| # RUN: ld.lld --shared --fatal-warnings %t/b.o -o /dev/null |
| |
| ## Warn missing R_PPC64_TLSGD/R_PPC64_TLSLD. |
| # RUN: ld.lld --shared %t/a.o -o %t.so 2>&1 | FileCheck %s --check-prefix=WARN |
| # RUN: llvm-objdump -d --no-leading-addr %t.so | FileCheck %s --check-prefix=DIS |
| |
| # RUN: ld.lld %t/a.o %t/tga.o -o %t2 2>&1 | FileCheck %s --check-prefix=WARN |
| # RUN: llvm-readelf -x .got %t2 | FileCheck %s --check-prefix=HEX |
| # RUN: llvm-objdump -d --no-leading-addr %t2 | FileCheck %s --check-prefix=DIS |
| |
| # WARN: warning: {{.*}}.o: disable TLS relaxation due to R_PPC64_GOT_TLS* relocations without R_PPC64_TLSGD/R_PPC64_TLSLD relocations |
| |
| ## .got+0: x is local - relaxed to LE - its DTPMOD/DTPREL slots are link-time constants. |
| ## DTPMOD is 1. DTPREL is st_value-0x8000 = -0x8000. |
| ## .got+16: DTPMOD/DTPREL for _TLS_MODULE_BASE_ is 1 and 0, respectively. |
| ## .got+32: TPOFFSET for x = st_value-0x7000 |
| # HEX: section '.got': |
| # HEX-NEXT: [[#%x,IGNORE:]] 50820210 00000000 01000000 00000000 |
| # HEX-NEXT: [[#%x,IGNORE:]] 0080ffff ffffffff 01000000 00000000 |
| # HEX-NEXT: [[#%x,IGNORE:]] 00000000 00000000 0090ffff ffffffff |
| |
| ## .TOC.-32768 = (.got+0x8000)-32768 = .got |
| # DIS-LABEL: <GeneralDynamic>: |
| # DIS-NEXT: addis 3, 2, 0 |
| # DIS-NEXT: addi 3, 3, -32760 |
| # DIS-NEXT: bl [[#%x,TGA:]] |
| # DIS-LABEL: <GeneralDynamic_NOTOC>: |
| # DIS-NEXT: addis 3, 2, 0 |
| # DIS-NEXT: addi 3, 3, -32760 |
| # DIS-NEXT: bl [[#TGA]] |
| |
| ## LocalDynamic references _TLS_MODULE_BASE_. |
| ## .TOC.-32752 = (.got+0x8000)-32752 = .got+16 |
| # DIS-LABEL: <LocalDynamic>: |
| # DIS-NEXT: addis 3, 2, 0 |
| # DIS-NEXT: addi 3, 3, -32744 |
| # DIS-NEXT: bl [[#TGA]] |
| # DIS-LABEL: <LocalDynamic_NOTOC>: |
| # DIS-NEXT: addis 3, 2, 0 |
| # DIS-NEXT: addi 3, 3, -32744 |
| # DIS-NEXT: bl [[#TGA]] |
| |
| ## Technically we don't have to disable IE to LE relaxation, |
| ## but disabling it for implementation simplicity does not hurt. |
| # DIS-LABEL: <InitialExec>: |
| # DIS-NEXT: addis 3, 2, 0 |
| # DIS-NEXT: ld 3, -32728(3) |
| # DIS-NEXT: add 3, 3, 13 |
| |
| #--- a.s |
| GeneralDynamic: |
| addis 3, 2, x@got@tlsgd@ha |
| addi 3, 3, x@got@tlsgd@l |
| bl __tls_get_addr |
| nop |
| |
| GeneralDynamic_NOTOC: |
| addis 3, 2, x@got@tlsgd@ha |
| addi 3, 3, x@got@tlsgd@l |
| bl __tls_get_addr@notoc |
| nop |
| |
| LocalDynamic: |
| addis 3, 2, x@got@tlsld@ha |
| addi 3, 3, x@got@tlsld@l |
| bl __tls_get_addr |
| nop |
| |
| LocalDynamic_NOTOC: |
| addis 3, 2, x@got@tlsld@ha |
| addi 3, 3, x@got@tlsld@l |
| bl __tls_get_addr@notoc |
| nop |
| |
| InitialExec: |
| addis 3, 2, x@got@tprel@ha |
| ld 3, x@got@tprel@l(3) |
| add 3, 3, x@tls |
| |
| .globl _start |
| _start: |
| |
| .section .tbss,"awT",@nobits |
| .globl x |
| x: |
| .quad 0 |
| |
| #--- b.s |
| CallOnly: |
| bl __tls_get_addr |
| nop |
| blr |
| |
| #--- tga.s |
| .globl __tls_get_addr |
| __tls_get_addr: |
| blr |