From: Stefan Liebler <stli@linux.ibm.com>
To: libc-alpha@sourceware.org
Cc: Stefan Liebler <stli@linux.ibm.com>
Subject: [PATCH] S390: Always enable static PIE if build with lld.
Date: Mon, 19 Feb 2024 16:49:31 +0100 [thread overview]
Message-ID: <20240219154931.653686-1-stli@linux.ibm.com> (raw)
LLVM ld.lld now also supports s390x and avoids unnecessary TPOFF
relocations for position independent executables. Both recent
commits were also cherry-picked to LLVM 18.
This patch just enables static PIE if build with lld.
---
sysdeps/s390/s390-64/configure | 10 ++++++++--
sysdeps/s390/s390-64/configure.ac | 10 ++++++++--
2 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/sysdeps/s390/s390-64/configure b/sysdeps/s390/s390-64/configure
index 824ae9c129..c26785f32f 100644
--- a/sysdeps/s390/s390-64/configure
+++ b/sysdeps/s390/s390-64/configure
@@ -12,8 +12,14 @@ case $($LD --version) in
libc_cv_s390x_staticpie_req_version=no
;;
"LLD"*)
- # As of 2023-08-07, there is no lld which supports s390x.
- libc_cv_s390x_staticpie_req_version=no
+ # The required lld patches are available with LLVM 18:
+ # - [lld] Add target support for SystemZ (s390x) #75643
+ # https://github.com/llvm/llvm-project/pull/75643
+ # 2024-02-13: https://github.com/llvm/llvm-project/commit/fe3406e349884e4ef61480dd0607f1e237102c74
+ # - [lld/ELF] Avoid unnecessary TPOFF relocations in GOT for -pie #81739
+ # https://github.com/llvm/llvm-project/pull/81739
+ # 2024-02-14: https://github.com/llvm/llvm-project/commit/6f907733e65d24edad65f763fb14402464bd578b
+ libc_cv_s390x_staticpie_req_version=yes
;;
*)
# The required binutils patches are available with bintuils 2.39
diff --git a/sysdeps/s390/s390-64/configure.ac b/sysdeps/s390/s390-64/configure.ac
index 4657de0d37..2b5bffc107 100644
--- a/sysdeps/s390/s390-64/configure.ac
+++ b/sysdeps/s390/s390-64/configure.ac
@@ -12,8 +12,14 @@ case $($LD --version) in
libc_cv_s390x_staticpie_req_version=no
;;
"LLD"*)
- # As of 2023-08-07, there is no lld which supports s390x.
- libc_cv_s390x_staticpie_req_version=no
+ # The required lld patches are available with LLVM 18:
+ # - [lld] Add target support for SystemZ (s390x) #75643
+ # https://github.com/llvm/llvm-project/pull/75643
+ # 2024-02-13: https://github.com/llvm/llvm-project/commit/fe3406e349884e4ef61480dd0607f1e237102c74
+ # - [lld/ELF] Avoid unnecessary TPOFF relocations in GOT for -pie #81739
+ # https://github.com/llvm/llvm-project/pull/81739
+ # 2024-02-14: https://github.com/llvm/llvm-project/commit/6f907733e65d24edad65f763fb14402464bd578b
+ libc_cv_s390x_staticpie_req_version=yes
;;
*)
# The required binutils patches are available with bintuils 2.39
--
2.43.0
next reply other threads:[~2024-02-19 15:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-19 15:49 Stefan Liebler [this message]
2024-02-20 14:49 ` Adhemerval Zanella Netto
2024-02-21 7:51 ` Stefan Liebler
2024-02-21 15:05 ` Stefan Liebler
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