From: Tatsuyuki Ishi <ishitatsuyuki@gmail.com>
To: ishitatsuyuki@gmail.com
Cc: libc-alpha@sourceware.org, rui314@gmail.com,
ruiu@bluewhale.systems, schwab@linux-m68k.org,
adhemerval.zanella@linaro.org, andrew@sifive.com,
fweimer@redhat.com
Subject: [PATCH v6 0/3] RISC-V: Implement TLS Descriptors.
Date: Fri, 29 Mar 2024 15:18:31 +0900 [thread overview]
Message-ID: <20240329061834.40019-1-ishitatsuyuki@gmail.com> (raw)
In-Reply-To: <20230817181228.122674-2-ishitatsuyuki@gmail.com>
This patchset implements TLS Descriptors (TLSDESC) for RISC-V targets, per
the ratified specification at [1].
Partial support for TLSDESC is in binutils trunk. In [2] there is
additional support for relaxation which is required to pass
tst-tls1-static. GCC needs to be patched with [3].
Passes binutils and gcc tests for rv32gcv and rv64gcv. For glibc I only
tested elf/ as other subsystems sometimes doesn't work well under qemu.
This contribution is made on behalf of Blue Whale Systems, which has
copyright assignment on file with the FSF.
v2: Fix end-of-file newlines.
v3: Fix segfaulting on the slow path of TLSDESC resolver.
Fix handling of lazy relocations.
v4: Fix compiler warnings.
Fix fast path stack alignment pointed out by Andrew.
Fix style issues pointed out by Adhemerval.
Include 2 missing prerequisite commits.
Update localplt list.
v5: Add stubs for save/restore of vector registers.
Add comments and reordered sections for readability in the TLSDESC assembly.
Add clobber test sequence for tst-gnu2-tls2.
v6: Fix R_RISCV_NUM.
Elaborate on the include guard commit (thanks Fangrui).
[1]: https://github.com/riscv-non-isa/riscv-elf-psabi-doc/pull/373
[2]: https://inbox.sourceware.org/binutils/20240220175556.304692-1-ishitatsuyuki@gmail.com/
[3]: https://inbox.sourceware.org/gcc-patches/20240329055239.29719-1-ishitatsuyuki@gmail.com/
Tatsuyuki Ishi (3):
RISC-V: Add include guard for dl-tls.h.
RISC-V: Add TLSDESC reloc definitions.
RISC-V: Implement TLS Descriptors.
elf/elf.h | 7 +-
sysdeps/riscv/Makefile | 10 +
sysdeps/riscv/dl-lookupcfg.h | 27 ++
sysdeps/riscv/dl-machine.h | 50 +++-
sysdeps/riscv/dl-tls.h | 4 +
sysdeps/riscv/dl-tlsdesc.S | 269 ++++++++++++++++++++
sysdeps/riscv/dl-tlsdesc.h | 48 ++++
sysdeps/riscv/linkmap.h | 1 +
sysdeps/riscv/preconfigure | 1 +
sysdeps/riscv/tlsdesc.c | 38 +++
sysdeps/riscv/tlsdesc.sym | 19 ++
sysdeps/riscv/tst-gnu2-tls2.c | 33 +++
sysdeps/unix/sysv/linux/riscv/localplt.data | 2 +
13 files changed, 507 insertions(+), 2 deletions(-)
create mode 100644 sysdeps/riscv/dl-lookupcfg.h
create mode 100644 sysdeps/riscv/dl-tlsdesc.S
create mode 100644 sysdeps/riscv/dl-tlsdesc.h
create mode 100644 sysdeps/riscv/tlsdesc.c
create mode 100644 sysdeps/riscv/tlsdesc.sym
create mode 100644 sysdeps/riscv/tst-gnu2-tls2.c
--
2.44.0
next prev parent reply other threads:[~2024-03-29 6:18 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-17 18:12 [PATCH] " Tatsuyuki Ishi
2023-08-17 18:35 ` Andreas Schwab
2023-09-08 10:55 ` [PATCH v2] " Tatsuyuki Ishi
2023-09-13 17:26 ` [PATCH v3] " Tatsuyuki Ishi
2023-09-13 19:14 ` Adhemerval Zanella Netto
2023-09-14 8:39 ` Tatsuyuki Ishi
2023-09-14 12:09 ` Adhemerval Zanella Netto
2024-01-27 2:22 ` Fangrui Song
2023-09-13 19:07 ` [PATCH] " Andrew Waterman
2023-09-14 8:40 ` [PATCH v4 0/3] " Tatsuyuki Ishi
2023-09-14 8:40 ` [PATCH v4 1/3] RISC-V: Add include guard for dl-tls.h Tatsuyuki Ishi
2024-01-27 1:14 ` Fangrui Song
2023-09-14 8:40 ` [PATCH v4 2/3] RISC-V: Add TLSDESC reloc definitions Tatsuyuki Ishi
2024-01-27 1:12 ` Fangrui Song
2023-09-14 8:40 ` [PATCH v4 3/3] RISC-V: Implement TLS Descriptors Tatsuyuki Ishi
2023-11-23 11:39 ` Florian Weimer
2024-03-29 5:55 ` [PATCH v5 0/3] " Tatsuyuki Ishi
2024-03-29 5:55 ` [PATCH v5 1/3] RISC-V: Add include guard for dl-tls.h Tatsuyuki Ishi
2024-03-29 5:55 ` [PATCH v5 2/3] RISC-V: Add TLSDESC reloc definitions Tatsuyuki Ishi
2024-03-29 5:55 ` [PATCH v5 3/3] RISC-V: Implement TLS Descriptors Tatsuyuki Ishi
2024-03-29 6:18 ` Tatsuyuki Ishi [this message]
2024-03-29 6:18 ` [PATCH v6 1/3] RISC-V: Add include guard for dl-tls.h Tatsuyuki Ishi
2024-04-03 11:48 ` Adhemerval Zanella Netto
2024-03-29 6:18 ` [PATCH v6 2/3] RISC-V: Add TLSDESC reloc definitions Tatsuyuki Ishi
2024-04-03 5:10 ` Fangrui Song
2024-04-03 8:03 ` Andreas Schwab
2024-03-29 6:18 ` [PATCH v6 3/3] RISC-V: Implement TLS Descriptors Tatsuyuki Ishi
2024-04-01 13:23 ` Florian Weimer
2024-04-01 19:29 ` Adhemerval Zanella Netto
2024-04-02 3:36 ` Tatsuyuki Ishi
2024-04-02 13:35 ` Adhemerval Zanella Netto
2024-04-02 15:25 ` Palmer Dabbelt
2024-04-02 15:32 ` Adhemerval Zanella Netto
2024-04-02 16:37 ` Palmer Dabbelt
2024-04-30 17:05 ` [PATCH v6 0/3] " Palmer Dabbelt
2024-04-30 18:33 ` Adhemerval Zanella Netto
2024-05-01 1:36 ` Tatsuyuki Ishi
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