From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: alex.bennee@linaro.org, laurent@vivier.eu
Subject: [PATCH v2 00/36] linux-user: Signal trampolines and vdsos
Date: Tue, 6 Jul 2021 16:48:56 -0700 [thread overview]
Message-ID: <20210706234932.356913-1-richard.henderson@linaro.org> (raw)
Supercedes: <20210619034329.532318-1-richard.henderson@linaro.org>
("[PATCH 00/12] linux-user: Load a vdso for x86_64 and hppa")
Supercedes: <20210618192951.125651-1-richard.henderson@linaro.org>
("[PATCH v2 00/23] linux-user: Move signal trampolines to new page")
Changes for v2:
* Add vdsos for aarch64, arm, i386, riscv.
* Drop setup_sigtramp for any target with a vdso.
* Drop arm v1 signal support.
* Simplify ppc encode_trampoline.
The remaining linux kernel targets that support vdsos are:
MIPS is particularly troublesome because of a multitude of ISAs.
The kernel doesn't even support them all, disabling the vdso for
micromips (and probably ignores nanomips entirely). Though I'll
note that linux-user/mips does not handle any of the modern
ISAs -- install_sigtramp is strictly MIPS I. In addition there
are 3 ELF ABIs, so there's some combinatorial explosion in the
set of vdsos that would need to be pre-built. Perhaps put this
off until we can build these on demand.
PPC is troublesome because of __kernel_get_syscall_map.
In addition to needing to collect the set of syscalls that qemu
supports, we'd need to update the vdso every time we add support
for a new syscall. And then there are the 3 ELF ABIs. So again
put this off until we can build these on demand.
S390x shouldn't be troublesome, I just didn't finish them all.
r~
Richard Henderson (36):
linux-user: Add infrastructure for a signal trampoline page
linux-user: Fix style problems in linuxload.c
linux-user: Introduce imgsrc_read, imgsrc_read_alloc
linux-user: Tidy loader_exec
linux-user: Do not clobber bprm_buf swapping ehdr
linux-user: Use ImageSource in load_elf_image
linux-user: Use ImageSource in load_symbols
linux-user: Replace bprm->fd with bprm->src.fd
linux-user: Introduce imgsrc_mmap
linux-user: Load vdso image if available
linux-user: Add gen-vdso tool
linux-user/aarch64: Add vdso and use it for rt_sigreturn
linux-user/arm: Drop v1 signal frames
linux-user/arm: Drop "_v2" from symbols in signal.c
target/arm: Add isar_feature_aa32_a32
linux-user/arm: Add vdso and use it for rt_sigreturn
linux-user/alpha: Implement setup_sigtramp
linux-user/cris: Implement setup_sigtramp
linux-user/hexagon: Implement setup_sigtramp
linux-user/hppa: Add vdso and use it for rt_sigreturn
linux-user/x86_64: Raise SIGSEGV if SA_RESTORER not set
linux-user/i386: Add vdso and use it for sigreturn
linux-user/x86_64: Add vdso
linux-user/m68k: Implement setup_sigtramp
linux-user/microblaze: Implement setup_sigtramp
linux-user/mips: Tidy install_sigtramp
linux-user/mips: Implement setup_sigtramp
linux-user/nios2: Document non-use of setup_sigtramp
linux-user/openrisc: Implement setup_sigtramp
target/ppc: Simplify encode_trampoline
linux-user/ppc: Implement setup_sigtramp
linux-user/riscv: Add vdso and use it for sigreturn
linux-user/s390x: Implement setup_sigtramp
linux-user/sh4: Implement setup_sigtramp
linux-user/sparc: Implement setup_sigtramp
linux-user/xtensa: Implement setup_sigtramp
linux-user/alpha/target_signal.h | 1 +
linux-user/cris/target_signal.h | 2 +
linux-user/hexagon/target_signal.h | 2 +
linux-user/m68k/target_signal.h | 2 +
linux-user/microblaze/target_signal.h | 2 +
linux-user/mips/target_signal.h | 1 +
linux-user/mips64/target_signal.h | 2 +
linux-user/nios2/target_signal.h | 3 +
linux-user/openrisc/target_signal.h | 2 +
linux-user/ppc/target_signal.h | 2 +
linux-user/qemu.h | 67 +++-
linux-user/s390x/target_signal.h | 2 +
linux-user/sh4/target_signal.h | 2 +
linux-user/sparc/target_signal.h | 4 +
linux-user/xtensa/target_signal.h | 2 +
target/arm/cpu.h | 5 +
linux-user/aarch64/signal.c | 17 +-
linux-user/alpha/signal.c | 34 +-
linux-user/arm/signal.c | 500 ++++++--------------------
linux-user/cris/signal.c | 29 +-
linux-user/elfload.c | 367 ++++++++++++-------
linux-user/flatload.c | 8 +-
linux-user/gen-vdso.c | 223 ++++++++++++
linux-user/hexagon/signal.c | 19 +-
linux-user/hppa/signal.c | 8 +-
linux-user/i386/signal.c | 50 +--
linux-user/linuxload.c | 171 ++++++---
linux-user/m68k/signal.c | 47 ++-
linux-user/microblaze/signal.c | 24 +-
linux-user/mips/signal.c | 39 +-
linux-user/openrisc/signal.c | 24 +-
linux-user/ppc/signal.c | 40 +--
linux-user/riscv/signal.c | 10 +-
linux-user/s390x/signal.c | 24 +-
linux-user/sh4/signal.c | 40 ++-
linux-user/signal.c | 3 +
linux-user/sparc/signal.c | 32 +-
linux-user/xtensa/signal.c | 50 +--
target/arm/cpu_tcg.c | 7 +
linux-user/gen-vdso-elfn.c.inc | 306 ++++++++++++++++
linux-user/aarch64/Makefile.vdso | 11 +
linux-user/aarch64/meson.build | 11 +
linux-user/aarch64/vdso-be.so | Bin 0 -> 6000 bytes
linux-user/aarch64/vdso-le.so | Bin 0 -> 6000 bytes
linux-user/aarch64/vdso.S | 77 ++++
linux-user/aarch64/vdso.ld | 74 ++++
linux-user/arm/Makefile.vdso | 17 +
linux-user/arm/meson.build | 18 +
linux-user/arm/vdso-arm-be.so | Bin 0 -> 5648 bytes
linux-user/arm/vdso-arm-le.so | Bin 0 -> 5648 bytes
linux-user/arm/vdso-thm-be.so | Bin 0 -> 5620 bytes
linux-user/arm/vdso-thm-le.so | Bin 0 -> 5620 bytes
linux-user/arm/vdso.S | 209 +++++++++++
linux-user/arm/vdso.ld | 74 ++++
linux-user/hppa/Makefile.vdso | 6 +
linux-user/hppa/meson.build | 6 +
linux-user/hppa/vdso.S | 149 ++++++++
linux-user/hppa/vdso.ld | 75 ++++
linux-user/hppa/vdso.so | Bin 0 -> 5196 bytes
linux-user/i386/Makefile.vdso | 5 +
linux-user/i386/meson.build | 7 +
linux-user/i386/vdso.S | 149 ++++++++
linux-user/i386/vdso.ld | 76 ++++
linux-user/i386/vdso.so | Bin 0 -> 5528 bytes
linux-user/meson.build | 8 +-
linux-user/riscv/Makefile.vdso | 11 +
linux-user/riscv/meson.build | 9 +
linux-user/riscv/vdso-32.so | Bin 0 -> 5624 bytes
linux-user/riscv/vdso-64.so | Bin 0 -> 6120 bytes
linux-user/riscv/vdso.S | 207 +++++++++++
linux-user/riscv/vdso.ld | 76 ++++
linux-user/x86_64/Makefile.vdso | 5 +
linux-user/x86_64/meson.build | 6 +
linux-user/x86_64/vdso.S | 122 +++++++
linux-user/x86_64/vdso.ld | 74 ++++
linux-user/x86_64/vdso.so | Bin 0 -> 6008 bytes
76 files changed, 2866 insertions(+), 789 deletions(-)
create mode 100644 linux-user/gen-vdso.c
create mode 100644 linux-user/gen-vdso-elfn.c.inc
create mode 100644 linux-user/aarch64/Makefile.vdso
create mode 100644 linux-user/aarch64/meson.build
create mode 100755 linux-user/aarch64/vdso-be.so
create mode 100755 linux-user/aarch64/vdso-le.so
create mode 100644 linux-user/aarch64/vdso.S
create mode 100644 linux-user/aarch64/vdso.ld
create mode 100644 linux-user/arm/Makefile.vdso
create mode 100755 linux-user/arm/vdso-arm-be.so
create mode 100755 linux-user/arm/vdso-arm-le.so
create mode 100755 linux-user/arm/vdso-thm-be.so
create mode 100755 linux-user/arm/vdso-thm-le.so
create mode 100644 linux-user/arm/vdso.S
create mode 100644 linux-user/arm/vdso.ld
create mode 100644 linux-user/hppa/Makefile.vdso
create mode 100644 linux-user/hppa/vdso.S
create mode 100644 linux-user/hppa/vdso.ld
create mode 100755 linux-user/hppa/vdso.so
create mode 100644 linux-user/i386/Makefile.vdso
create mode 100644 linux-user/i386/vdso.S
create mode 100644 linux-user/i386/vdso.ld
create mode 100755 linux-user/i386/vdso.so
create mode 100644 linux-user/riscv/Makefile.vdso
create mode 100644 linux-user/riscv/meson.build
create mode 100755 linux-user/riscv/vdso-32.so
create mode 100755 linux-user/riscv/vdso-64.so
create mode 100644 linux-user/riscv/vdso.S
create mode 100644 linux-user/riscv/vdso.ld
create mode 100644 linux-user/x86_64/Makefile.vdso
create mode 100644 linux-user/x86_64/vdso.S
create mode 100644 linux-user/x86_64/vdso.ld
create mode 100755 linux-user/x86_64/vdso.so
--
2.25.1
next reply other threads:[~2021-07-06 23:51 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-06 23:48 Richard Henderson [this message]
2021-07-06 23:48 ` [PATCH v2 01/36] linux-user: Add infrastructure for a signal trampoline page Richard Henderson
2021-07-06 23:48 ` [PATCH v2 02/36] linux-user: Fix style problems in linuxload.c Richard Henderson
2021-07-07 19:22 ` Laurent Vivier
2021-07-06 23:48 ` [PATCH v2 03/36] linux-user: Introduce imgsrc_read, imgsrc_read_alloc Richard Henderson
2021-07-06 23:49 ` [PATCH v2 04/36] linux-user: Tidy loader_exec Richard Henderson
2021-07-07 8:21 ` Philippe Mathieu-Daudé
2021-07-06 23:49 ` [PATCH v2 05/36] linux-user: Do not clobber bprm_buf swapping ehdr Richard Henderson
2021-07-06 23:49 ` [PATCH v2 06/36] linux-user: Use ImageSource in load_elf_image Richard Henderson
2021-07-06 23:49 ` [PATCH v2 07/36] linux-user: Use ImageSource in load_symbols Richard Henderson
2021-07-06 23:49 ` [PATCH v2 08/36] linux-user: Replace bprm->fd with bprm->src.fd Richard Henderson
2021-07-06 23:49 ` [PATCH v2 09/36] linux-user: Introduce imgsrc_mmap Richard Henderson
2021-07-06 23:49 ` [PATCH v2 10/36] linux-user: Load vdso image if available Richard Henderson
2021-07-06 23:49 ` [PATCH v2 11/36] linux-user: Add gen-vdso tool Richard Henderson
2021-07-06 23:49 ` [PATCH v2 12/36] linux-user/aarch64: Add vdso and use it for rt_sigreturn Richard Henderson
2021-07-06 23:49 ` [PATCH v2 13/36] linux-user/arm: Drop v1 signal frames Richard Henderson
2021-07-07 8:19 ` Philippe Mathieu-Daudé
2021-07-07 17:35 ` Peter Maydell
2021-07-06 23:49 ` [PATCH v2 14/36] linux-user/arm: Drop "_v2" from symbols in signal.c Richard Henderson
2021-07-07 8:19 ` Philippe Mathieu-Daudé
2021-07-06 23:49 ` [PATCH v2 15/36] target/arm: Add isar_feature_aa32_a32 Richard Henderson
2021-07-06 23:49 ` [PATCH v2 16/36] linux-user/arm: Add vdso and use it for rt_sigreturn Richard Henderson
2021-07-06 23:49 ` [PATCH v2 17/36] linux-user/alpha: Implement setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 18/36] linux-user/cris: " Richard Henderson
2021-07-06 23:49 ` [PATCH v2 19/36] linux-user/hexagon: " Richard Henderson
2021-07-12 23:08 ` Taylor Simpson
2021-07-06 23:49 ` [PATCH v2 20/36] linux-user/hppa: Add vdso and use it for rt_sigreturn Richard Henderson
2021-07-06 23:49 ` [PATCH v2 21/36] linux-user/x86_64: Raise SIGSEGV if SA_RESTORER not set Richard Henderson
2021-07-06 23:49 ` [PATCH v2 22/36] linux-user/i386: Add vdso and use it for sigreturn Richard Henderson
2021-07-07 20:28 ` Richard Henderson
2021-07-06 23:49 ` [PATCH v2 23/36] linux-user/x86_64: Add vdso Richard Henderson
2021-07-06 23:49 ` [PATCH v2 24/36] linux-user/m68k: Implement setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 25/36] linux-user/microblaze: " Richard Henderson
2021-07-06 23:49 ` [PATCH v2 26/36] linux-user/mips: Tidy install_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 27/36] linux-user/mips: Implement setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 28/36] linux-user/nios2: Document non-use of setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 29/36] linux-user/openrisc: Implement setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 30/36] target/ppc: Simplify encode_trampoline Richard Henderson
2021-07-06 23:49 ` [PATCH v2 31/36] linux-user/ppc: Implement setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 32/36] linux-user/riscv: Add vdso and use it for sigreturn Richard Henderson
2021-07-06 23:49 ` Richard Henderson
2021-07-06 23:49 ` [PATCH v2 33/36] linux-user/s390x: Implement setup_sigtramp Richard Henderson
2021-07-06 23:49 ` [PATCH v2 34/36] linux-user/sh4: " Richard Henderson
2021-07-06 23:49 ` [PATCH v2 35/36] linux-user/sparc: " Richard Henderson
2021-07-06 23:49 ` [PATCH v2 36/36] linux-user/xtensa: " Richard Henderson
2021-07-08 10:55 ` [PATCH v2 00/36] linux-user: Signal trampolines and vdsos Philippe Mathieu-Daudé
2021-09-01 9:36 ` Peter Maydell
2021-09-03 13:39 ` Alex Bennée
2021-09-03 15:39 ` Richard Henderson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210706234932.356913-1-richard.henderson@linaro.org \
--to=richard.henderson@linaro.org \
--cc=alex.bennee@linaro.org \
--cc=laurent@vivier.eu \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.