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llvm-project/lld/test/ELF/arm-tls-norelax-gd-le.s

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[ELF] Move `// REQUIRES:` line to the top llvm-svn: 335676
2018-06-27 06:20:04 +08:00
// REQUIRES: arm
[ELF][ARM] Add --no-show-raw-insn and -soname to some ARM tests Delete some insignificant addresses to make it simpler for layout changes. llvm-svn: 370048
2019-08-27 19:50:27 +08:00
// RUN: llvm-mc -filetype=obj -triple=armv7a-none-linux-gnueabi %p/Inputs/arm-tls-get-addr.s -o %t1.o
// RUN: ld.lld %t1.o --shared -soname=t1.so -o %t1.so
[ARM] ARM TLS shouldn't use relaxations The ARM TLS relocations are placed on literal data and not the code-sequence, it is therefore not possible to implement the relaxTls* functions. This change updates handleMipsTlsRelocation() to handleNoRelaxTlsRelocation() and incorporates ARM as well as Mips. The ARM support in handleNoRelaxTlsRelocation() currently needs to ouput the module index dynamic relocation in all cases as it is relying on the dynamic linker to set the module index in the got. Should address PR30218 Differential Revision: https://reviews.llvm.org/D24827 llvm-svn: 282250
2016-09-23 21:54:48 +08:00
// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=armv7a-linux-gnueabi
[ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM Port the D64906 technique to ARM. It deletes 3 alignments at PT_LOAD boundaries for the default case: the size of an arm binary decreases by at most 12kb. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D66749 llvm-svn: 370049
2019-08-27 19:52:36 +08:00
// RUN: ld.lld %t1.so %t.o -o %t
[ELF] Add support for static TLS to ARM The module index dynamic relocation R_ARM_DTPMOD32 is always 1 for an executable. When static linking and when we know that we are not a shared object we can resolve the module index relocation statically. The logic in handleNoRelaxTlsRelocation remains the same for Mips as it has its own custom GOT writing code. For ARM we add the module index relocation to the GOT when it can be resolved statically. In addition the type of the RelExpr for the static resolution of TlsGotRel should be R_TLS and not R_ABS as we need to include the size of the thread control block in the calculation. Addresses the TLS part of PR30218. Differential revision: https://reviews.llvm.org/D27213 llvm-svn: 288153
2016-11-30 00:23:50 +08:00
// RUN: llvm-objdump -s %t | FileCheck %s
[ARM] ARM TLS shouldn't use relaxations The ARM TLS relocations are placed on literal data and not the code-sequence, it is therefore not possible to implement the relaxTls* functions. This change updates handleMipsTlsRelocation() to handleNoRelaxTlsRelocation() and incorporates ARM as well as Mips. The ARM support in handleNoRelaxTlsRelocation() currently needs to ouput the module index dynamic relocation in all cases as it is relying on the dynamic linker to set the module index in the got. Should address PR30218 Differential Revision: https://reviews.llvm.org/D24827 llvm-svn: 282250
2016-09-23 21:54:48 +08:00
// This tls global-dynamic sequence is with respect to a non-preemptible
// symbol in an application so a relaxation to Local Exec would normally be
// possible. This would result in an assertion failure on ARM as the
// relaxation functions can't be implemented on ARM. Check that the sequence
// is handled as global dynamic
.text
.syntax unified
.globl func
.p2align 2
.type func,%function
func:
.L0:
.globl __tls_get_addr
bl __tls_get_addr
bx lr
.p2align 2
.Lt0: .word x(TLSGD) + (. - .L0 - 8)
.globl x
.section .tbss,"awT",%nobits
.p2align 2
x:
.space 4
.type x, %object
[ELF] Add support for static TLS to ARM The module index dynamic relocation R_ARM_DTPMOD32 is always 1 for an executable. When static linking and when we know that we are not a shared object we can resolve the module index relocation statically. The logic in handleNoRelaxTlsRelocation remains the same for Mips as it has its own custom GOT writing code. For ARM we add the module index relocation to the GOT when it can be resolved statically. In addition the type of the RelExpr for the static resolution of TlsGotRel should be R_TLS and not R_ABS as we need to include the size of the thread control block in the calculation. Addresses the TLS part of PR30218. Differential revision: https://reviews.llvm.org/D27213 llvm-svn: 288153
2016-11-30 00:23:50 +08:00
// CHECK: Contents of section .got:
// Module index is always 1 for executable
[ELF][ARM] Allow PT_LOAD to have overlapping p_offset ranges on EM_ARM Port the D64906 technique to ARM. It deletes 3 alignments at PT_LOAD boundaries for the default case: the size of an arm binary decreases by at most 12kb. Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D66749 llvm-svn: 370049
2019-08-27 19:52:36 +08:00
// CHECK-NEXT: 12268 01000000 00000000
[ARM] ARM TLS shouldn't use relaxations The ARM TLS relocations are placed on literal data and not the code-sequence, it is therefore not possible to implement the relaxTls* functions. This change updates handleMipsTlsRelocation() to handleNoRelaxTlsRelocation() and incorporates ARM as well as Mips. The ARM support in handleNoRelaxTlsRelocation() currently needs to ouput the module index dynamic relocation in all cases as it is relying on the dynamic linker to set the module index in the got. Should address PR30218 Differential Revision: https://reviews.llvm.org/D24827 llvm-svn: 282250
2016-09-23 21:54:48 +08:00
Don't create a dummy __tls_get_addr. We just don't need one with the current setup. We only error on undefined references that are used by some relocation. If we managed to relax all uses of __tls_get_addr, no relocation uses it and we don't produce an error. This is less code and fixes the case were we fail to relax. Before we would produce a broken output, but now we produce an error. llvm-svn: 315334
2017-10-11 01:27:34 +08:00
// Without any definition of __tls_get_addr we get an error
// RUN: not ld.lld %t.o -o %t 2>&1 | FileCheck --check-prefix=ERR %s
// ERR: error: undefined symbol: __tls_get_addr