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* [glibc] Deleted branch azanella/y2038-fixes
@ 2020-07-30 13:20 Adhemerval Zanella
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From: Adhemerval Zanella @ 2020-07-30 13:20 UTC (permalink / raw)
To: glibc-cvs
The branch 'azanella/y2038-fixes' was deleted.
It previously pointed to:
6da8914032... linux: Add time64 sigtimedwait support
Diff:
!!! WARNING: THE FOLLOWING COMMITS ARE NO LONGER ACCESSIBLE (LOST):
-------------------------------------------------------------------
6da8914... linux: Add time64 sigtimedwait support
d04aab4... linux: Add time64 recvmmsg support
32e5a24... linux: Add time64 select support
a4d465d... linux: Add time64 pselect support
d14f501... sysvipc: linux: Add time64 semtimedop support
bdfeee2... sysv: linux: Add 64-bit time_t variant for shmctl
199dbdc... sysvipc: Remove the linux shm-pad.h file
5d35b17... sysvipc: Split out linux struct shmid_ds
af4acc1... sysv: linux: Add 64-bit time_t variant for msgctl
71e07db... sysvipc: Remove the linux msq-pad.h file
e5c77b8... sysvipc: Split out linux struct semid_ds
3ca7a46... sysv: linux: Add 64-bit time_t variant for semctl
commit 6da89140323ed9264152f121aad64ea7c7b897a1
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jul 6 17:14:42 2020 -0300
linux: Add time64 sigtimedwait support
The syscall __NR_sigtimedwait_time64 (for 32-bit) or __NR_sigtimedwait
(for 64-bit) is used as default. The 32-bit fallback is used iff
__ASSUME_TIME64_SYSCALLS is not defined, which assumes the kernel ABI
provides either __NR_rt_sigtimedwait (32-bit time_t).
Checked on x86_64-linux-gnu and i686-linux-gnu.
commit d04aab4c9a9cca045973f1869fc37d15e2e645fb
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jul 6 16:55:46 2020 -0300
linux: Add time64 recvmmsg support
The wire-up syscall __NR_recvmmsg_time64 (for 32-bit) or
__NR_recvmmsg (for 64-bit) is used as default. The 32-bit fallback
is used iff __ASSUME_TIME64_SYSCALLS is not defined, which assumes the
kernel ABI provides either __NR_socketcall or __NR_recvmmsg
(32-bit time_t).
Checked on x86_64-linux-gnu and i686-linux-gnu.
commit 32e5a24b93108dec8a24615f227718f692da824b
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jul 6 16:06:51 2020 -0300
linux: Add time64 select support
The syscall __NR_pselect6_time64 (32-bit) or __NR_pselect6 (64-bit)
is used as default. For architectures with __ASSUME_TIME64_SYSCALLS
the 32-bit fallback uses __NR_select/__NR__newselect or __NR_pselect6
(it should cover the microblaze case where older kernels do not
provide __NR_pselect6).
Checked on x86_64-linux-gnu and i686-linux-gnu.
commit a4d465d793fbbc7d587988c42429e1326d89f734
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jul 6 13:27:12 2020 -0300
linux: Add time64 pselect support
The syscall __NR_pselect6_time64 (32-bit) or __NR_pselect6 (64-bit)
is used as default. For architectures with __ASSUME_TIME64_SYSCALLS
the 32-bit fallback uses __NR_pselec6.
To accomodate microblaze missing pselect6 support on kernel older
than 3.15 the fallback is moved to its own function to the microblaze
specific implementation can override it.
Checked x86_64-linux-gnu and i686-linux-gnu.
commit d14f5013c1e7bf3aa20611a9b6f794c24f08154c
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jul 6 17:40:34 2020 -0300
sysvipc: linux: Add time64 semtimedop support
The wire-up syscall __NR_semtimedop_time64 (for 32-bit) or
__NR_semtimedop (for 64-bit) is used as default. The 32-bit fallback
is used iff __ASSUME_TIME64_SYSCALLS is not defined, which assumes the
kernel ABI provides either __NR_ipc or __NR_semtimeop (32-bit time_t)
Checked on x86_64-linux-gnu and i686-linux-gnu.
commit bdfeee2a1fd2453b2d1e91cbd5ab02111a7adfb6
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Jun 30 14:08:22 2020 -0300
sysv: linux: Add 64-bit time_t variant for shmctl
To provide a y2038 safe interface a new symbol __shmctl64 is added
and __shmctl is change to call it instead (it adds some extra buffer
copy for the 32 bit time_t implementation).
Two two new structures are added:
1. kernel_shmid64_ds: used internally only on 32-bit architectures
to issue the syscall. A handful architectures (hppa, i386, mips,
powerpc32, and sparc32) requires specific implementation due its
specific kernel ABI.
2. shmid_ds64: this is only for __TIMESIZE != 64 to use along with
the 64-bit semctl. It is different than the kernel one because
the exported 64-bit time_t might require different alignment
depending of the architecture ABI.
So the resulting implementation does:
1. For 64-bit architectures it assumes shmid_ds already contains
64-bit time_t fields it will result in just the __shmctl symbol
using the __shmctl64 code. The shmid_ds argument is passed as-is
to the syscall.
2. For 32-bit architectures with default 64-bit time_t (newer ABIs
such riscv32 or arc), it will also result in only one exported
symbol but with the required high/low time handling.
3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t
support we follow the already set way to provide one symbol with
64-bit time_t support and implement the 32-bit time_t support on
basis of the 64-bit one.
The default 32-bit symbol will allocate and copy the shmid_ds
over multiple buffers, but this should be deprecated in favor
of the __shmctl64 anyway.
Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff
tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and
sparc64.
commit 199dbdcf98de8e8e8361eb98702d0509383c30e2
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Jun 30 11:02:52 2020 -0300
sysvipc: Remove the linux shm-pad.h file
Each architecture overrides the struct msqid_ds which its required
kernel ABI one.
Checked on x86_64-linux-gnu and some bases sysvipc tests on hppa,
mips, mipsle, mips64, mips64le, sparc64, sparcv9, powerpc64le,
powerpc64, and powerpc.
commit 5d35b17432fa68f4ecb2738bbc7ea897b80ed966
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Jun 30 10:30:14 2020 -0300
sysvipc: Split out linux struct shmid_ds
This will allow us to have architectures specify their own version.
Not semantic changes expected. Checked with a build against the
all affected ABIs.
commit af4acc128ff5adb5a1b55a8b1037d39490713370
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Tue Jun 30 09:20:48 2020 -0300
sysv: linux: Add 64-bit time_t variant for msgctl
To provide a y2038 safe interface a new symbol __msgctl64 is added
and __msgctl is change to call it instead (it adds some extra buffer
copy for the 32 bit time_t implementation).
Two two new structures are added:
1. kernel_msqid64_ds: used internally only on 32-bit architectures
to issue the syscall. A handful architectures (hppa, i386, mips,
powerpc32, and sparc32) requires specific implementation due its
specific kernel ABI.
2. msqid_ds64: this is only for __TIMESIZE != 64 to use along with
the 64-bit semctl. It is different than the kernel one because
the exported 64-bit time_t might require different alignment
depending of the architecture ABI.
So the resulting implementation does:
1. For 64-bit architectures it assumes msqid_ds already contains
64-bit time_t fields it will result in just the __msgctl symbol
using the __msgctl64 code. The msgid_ds argument is passed as-is
to the syscall.
2. For 32-bit architectures with default 64-bit time_t (newer ABIs
such riscv32 or arc), it will also result in only one exported
symbol but with the required high/low time handling.
3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t
support we follow the already set way to provide one symbol with
64-bit time_t support and implement the 32-bit time_t support on
basis of the 64-bit one.
The default 32-bit symbol will allocate and copy the msqid_ds
over multiple buffers, but this should be deprecated in favor
of the __msgctl64 anyway.
Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff
tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and
sparc64.
commit 71e07dbeb5faf1698406fc4d85af94c175f4e0e0
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jun 29 21:33:14 2020 -0300
sysvipc: Remove the linux msq-pad.h file
Each architecture overrides the struct msqid_ds which its required
kernel ABI one.
Checked on x86_64-linux-gnu and some bases sysvipc tests on hppa,
mips, mipsle, mips64, mips64le, sparc64, sparcv9, powerpc64le,
powerpc64, and powerpc.
commit e5c77b87c5e9f90a29f327f44f75c5b0da85fa50
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jun 29 18:21:14 2020 -0300
sysvipc: Split out linux struct semid_ds
This will allow us to have architectures specify their own version.
Not semantic changes expected. Checked with a build against the
all affected ABIs.
commit 3ca7a464ef33a0ff1bb4e4b4003aa844027dc0c8
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Mon Jun 29 13:35:50 2020 -0300
sysv: linux: Add 64-bit time_t variant for semctl
Different than others 64-bit time_t syscalls, the SysIPC interface
does not provide a new set of syscall for y2038 safeness. Instead it
uses unused fields in semid_ds structure to return the high bits for
the timestamps.
To provide a y2038 safe interface a new symbol __semctl64 is added
and __semctl is change to call it instead (it adds some extra buffer
copy for the 32 bit time_t implementation).
Two new structures are added:
1. kernel_semid64_ds: used internally only on 32-bit architectures
to issue the syscall. A handful of architectures (hppa, i386,
mips, powerpc32, sparc32) require specific implementations due
their kernel ABI.
2. semid_ds64: this is only for __TIMESIZE != 64 to use along with
the 64-bit semctl. It is different than the kernel struct because
the exported 64-bit time_t might require different alignment
depending of the architecture ABI.
So the resulting implementation does:
1. For 64-bit architectures it assumes semid_ds already contains
64-bit time_t fields and will result in just the __semctl symbol
using the __semctl64 code. The semid_ds argument is passed as-is
to the syscall.
2. For 32-bit architectures with default 64-bit time_t (newer ABIs
such riscv32 or arc), it will also result in only one exported
symbol but with the required high/low handling.
It might be possible to optimize it further to avoid the
kernel_semid64_ds to semun transformation if the exported ABI
for the architectures matches the expected kernel ABI, but the
implementation is already complex enough and don't think this
should be a hotspot in any case.
3. Finally for 32-bit architecture with both 32-bit and 64-bit time_t
support we follow the already set way to provide one symbol with
64-bit time_t support and implement the 32-bit time_t support
using the 64-bit one.
The default 32-bit symbol will allocate and copy the semid_ds
over multiple buffers, but this should be deprecated in favor
of the __semctl64 anyway.
Checked on i686-linux-gnu and x86_64-linux-gnu. I also did some sniff
tests on powerpc, powerpc64, mips, mips64, armhf, sparcv9, and
sparc64.
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Vineet Gupta <vgupta@synopsys.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
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2020-07-30 13:20 [glibc] Deleted branch azanella/y2038-fixes Adhemerval Zanella
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