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Add quirks for Linux ABI signals handling

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Require queueing of the signals with default action, and disable
dequeueing SIGCHLD on wait for live process.

Reported and tested by:	dchagin
Reviewed by:	dchagin, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D30675
This commit is contained in:
Konstantin Belousov 2021-06-05 21:18:21 +03:00
parent a12e901a5a
commit 870e197d52
4 changed files with 10 additions and 5 deletions
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3
sys/amd64/linux/linux_sysvec.c
View File

@ -752,7 +752,8 @@ struct sysentvec elf_linux_sysvec = {
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
.sv_flags = SV_ABI_LINUX | SV_LP64 | SV_SHP,
.sv_flags = SV_ABI_LINUX | SV_LP64 | SV_SHP | SV_SIG_DISCIGN |
SV_SIG_WAITNDQ,
.sv_set_syscall_retval = linux_set_syscall_retval,
.sv_fetch_syscall_args = linux_fetch_syscall_args,
.sv_syscallnames = NULL,

3
sys/amd64/linux32/linux32_sysvec.c
View File

@ -919,7 +919,8 @@ struct sysentvec elf_linux_sysvec = {
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = linux32_fixlimit,
.sv_maxssiz = &linux32_maxssiz,
.sv_flags = SV_ABI_LINUX | SV_ILP32 | SV_IA32 | SV_SHP,
.sv_flags = SV_ABI_LINUX | SV_ILP32 | SV_IA32 | SV_SHP |
SV_SIG_DISCIGN | SV_SIG_WAITNDQ,
.sv_set_syscall_retval = linux32_set_syscall_retval,
.sv_fetch_syscall_args = linux32_fetch_syscall_args,
.sv_syscallnames = NULL,

3
sys/arm64/linux/linux_sysvec.c
View File

@ -429,7 +429,8 @@ struct sysentvec elf_linux_sysvec = {
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
.sv_flags = SV_ABI_LINUX | SV_LP64 | SV_SHP,
.sv_flags = SV_ABI_LINUX | SV_LP64 | SV_SHP | SV_SIG_DISCIGN |
SV_SIG_WAITNDQ,
.sv_set_syscall_retval = linux_set_syscall_retval,
.sv_fetch_syscall_args = linux_fetch_syscall_args,
.sv_syscallnames = NULL,

6
sys/i386/linux/linux_sysvec.c
View File

@ -859,7 +859,8 @@ struct sysentvec linux_sysvec = {
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
.sv_flags = SV_ABI_LINUX | SV_AOUT | SV_IA32 | SV_ILP32,
.sv_flags = SV_ABI_LINUX | SV_AOUT | SV_IA32 | SV_ILP32 |
SV_SIG_DISCIGN | SV_SIG_WAITNDQ,
.sv_set_syscall_retval = linux_set_syscall_retval,
.sv_fetch_syscall_args = linux_fetch_syscall_args,
.sv_syscallnames = NULL,
@ -897,7 +898,8 @@ struct sysentvec elf_linux_sysvec = {
.sv_setregs = linux_exec_setregs,
.sv_fixlimit = NULL,
.sv_maxssiz = NULL,
.sv_flags = SV_ABI_LINUX | SV_IA32 | SV_ILP32 | SV_SHP,
.sv_flags = SV_ABI_LINUX | SV_IA32 | SV_ILP32 | SV_SHP |
SV_SIG_DISCIGN | SV_SIG_WAITNDQ,
.sv_set_syscall_retval = linux_set_syscall_retval,
.sv_fetch_syscall_args = linux_fetch_syscall_args,
.sv_syscallnames = NULL,