[PATCH v5 00/20] linux-user: Implement VDSOs

[Richard Henderson]

Changes for v5:
  * Integrated cross-compile, via new build-vdso.sh and meson rules.
    However, keep the binaries in the tree for hosts which do not
    have all of the cross-compile machinery.
  * Update our loongarch64 docker image to avoid a binutils bug.

Changes for v4:
  * Force all vdso to have a single load segment.
    This will prevent problems with varying host/guest page size.
  * Tidy some of the assembly with macros.
  * Implement loongarch, ppc, s390x.

Just in case the list eats a binary:
  https://gitlab.com/rth7680/qemu/-/tree/lu-vdso


r~


Richard Henderson (20):
  tests/docker: Update docker-loongarch-cross toolchain
  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: Load vdso image if available
  linux-user: Add gen-vdso tool
  linux-user: Add build-vdso.sh tool
  linux-user/i386: Add vdso
  linux-user/x86_64: Add vdso
  linux-user/aarch64: Add vdso
  linux-user/arm: Add vdso
  linux-user/hppa: Add vdso
  linux-user/riscv: Add vdso
  linux-user/loongarch64: Add vdso
  linux-user/ppc: Add vdso
  linux-user/s390x: Rename __SIGNAL_FRAMESIZE to STACK_FRAME_OVERHEAD
  linux-user/s390x: Add vdso

 linux-user/hppa/vdso-asmoffset.h              |  12 +
 linux-user/i386/vdso-asmoffset.h              |   6 +
 linux-user/loader.h                           |  60 ++-
 linux-user/loongarch64/vdso-asmoffset.h       |   8 +
 linux-user/ppc/vdso-asmoffset.h               |  20 +
 linux-user/riscv/vdso-asmoffset.h             |   9 +
 linux-user/s390x/vdso-asmoffset.h             |   2 +
 linux-user/arm/signal.c                       |  28 +-
 linux-user/elfload.c                          | 361 +++++++++++-------
 linux-user/flatload.c                         |   8 +-
 linux-user/gen-vdso.c                         | 223 +++++++++++
 linux-user/hppa/signal.c                      |  24 +-
 linux-user/i386/signal.c                      |  11 +
 linux-user/linuxload.c                        | 137 +++++--
 linux-user/loongarch64/signal.c               |  17 +-
 linux-user/ppc/signal.c                       |  31 +-
 linux-user/riscv/signal.c                     |   8 +
 linux-user/s390x/signal.c                     |   7 +-
 linux-user/gen-vdso-elfn.c.inc                | 314 +++++++++++++++
 linux-user/aarch64/meson.build                |  33 ++
 linux-user/aarch64/vdso-be.so                 | Bin 0 -> 3216 bytes
 linux-user/aarch64/vdso-le.so                 | Bin 0 -> 3216 bytes
 linux-user/aarch64/vdso.S                     |  73 ++++
 linux-user/aarch64/vdso.ld                    |  72 ++++
 linux-user/arm/meson.build                    |  35 ++
 linux-user/arm/vdso-be.so                     | Bin 0 -> 2680 bytes
 linux-user/arm/vdso-le.so                     | Bin 0 -> 2680 bytes
 linux-user/arm/vdso.S                         | 177 +++++++++
 linux-user/arm/vdso.ld                        |  67 ++++
 linux-user/build-vdso.sh                      |  31 ++
 linux-user/hppa/meson.build                   |  23 ++
 linux-user/hppa/vdso.S                        | 165 ++++++++
 linux-user/hppa/vdso.ld                       |  77 ++++
 linux-user/hppa/vdso.so                       | Bin 0 -> 2104 bytes
 linux-user/i386/meson.build                   |  24 ++
 linux-user/i386/vdso.S                        | 143 +++++++
 linux-user/i386/vdso.ld                       |  76 ++++
 linux-user/i386/vdso.so                       | Bin 0 -> 2672 bytes
 linux-user/loongarch64/meson.build            |  21 +
 linux-user/loongarch64/vdso.S                 | 130 +++++++
 linux-user/loongarch64/vdso.ld                |  73 ++++
 linux-user/loongarch64/vdso.so                | Bin 0 -> 3560 bytes
 linux-user/meson.build                        |  10 +-
 linux-user/ppc/Makefile.vdso                  |  18 +
 linux-user/ppc/meson.build                    |  12 +
 linux-user/ppc/vdso-32.ld                     |  70 ++++
 linux-user/ppc/vdso-32.so                     | Bin 0 -> 3020 bytes
 linux-user/ppc/vdso-64.ld                     |  68 ++++
 linux-user/ppc/vdso-64.so                     | Bin 0 -> 3896 bytes
 linux-user/ppc/vdso-64le.so                   | Bin 0 -> 3896 bytes
 linux-user/ppc/vdso.S                         | 239 ++++++++++++
 linux-user/riscv/meson.build                  |  30 ++
 linux-user/riscv/vdso-32.so                   | Bin 0 -> 2888 bytes
 linux-user/riscv/vdso-64.so                   | Bin 0 -> 3840 bytes
 linux-user/riscv/vdso.S                       | 186 +++++++++
 linux-user/riscv/vdso.ld                      |  74 ++++
 linux-user/s390x/meson.build                  |  24 ++
 linux-user/s390x/vdso.S                       |  61 +++
 linux-user/s390x/vdso.ld                      |  69 ++++
 linux-user/s390x/vdso.so                      | Bin 0 -> 3464 bytes
 linux-user/x86_64/meson.build                 |  20 +
 linux-user/x86_64/vdso.S                      |  78 ++++
 linux-user/x86_64/vdso.ld                     |  73 ++++
 linux-user/x86_64/vdso.so                     | Bin 0 -> 2968 bytes
 .../dockerfiles/debian-loongarch-cross.docker |   2 +-
 65 files changed, 3329 insertions(+), 211 deletions(-)
 create mode 100644 linux-user/hppa/vdso-asmoffset.h
 create mode 100644 linux-user/i386/vdso-asmoffset.h
 create mode 100644 linux-user/loongarch64/vdso-asmoffset.h
 create mode 100644 linux-user/ppc/vdso-asmoffset.h
 create mode 100644 linux-user/riscv/vdso-asmoffset.h
 create mode 100644 linux-user/s390x/vdso-asmoffset.h
 create mode 100644 linux-user/gen-vdso.c
 create mode 100644 linux-user/gen-vdso-elfn.c.inc
 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 100755 linux-user/arm/vdso-be.so
 create mode 100755 linux-user/arm/vdso-le.so
 create mode 100644 linux-user/arm/vdso.S
 create mode 100644 linux-user/arm/vdso.ld
 create mode 100755 linux-user/build-vdso.sh
 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/vdso.S
 create mode 100644 linux-user/i386/vdso.ld
 create mode 100755 linux-user/i386/vdso.so
 create mode 100644 linux-user/loongarch64/meson.build
 create mode 100644 linux-user/loongarch64/vdso.S
 create mode 100644 linux-user/loongarch64/vdso.ld
 create mode 100755 linux-user/loongarch64/vdso.so
 create mode 100644 linux-user/ppc/Makefile.vdso
 create mode 100644 linux-user/ppc/vdso-32.ld
 create mode 100755 linux-user/ppc/vdso-32.so
 create mode 100644 linux-user/ppc/vdso-64.ld
 create mode 100755 linux-user/ppc/vdso-64.so
 create mode 100755 linux-user/ppc/vdso-64le.so
 create mode 100644 linux-user/ppc/vdso.S
 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/s390x/vdso.S
 create mode 100644 linux-user/s390x/vdso.ld
 create mode 100755 linux-user/s390x/vdso.so
 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

-- 
2.34.1