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authorBin Lu <bin.lu@arm.com>2020-09-21 23:11:22 -0400
committerBin Lu <bin.lu@arm.com>2020-09-25 03:32:57 -0400
commit71c523b8f9a8ad1ab2ce37423e0d8fc8d3762f24 (patch)
tree45519a32a73245f6e3c58400fbd3179c593351af /pkg/sentry
parent059d90b9f1c52e6aed259ba7ac4847de297273c6 (diff)
arm64: some minor changes
This patch adds minor changes for Arm64 platform: 1, add SetRobustList/GetRobustList support for arm64 syscall module. 2, add newfstatat support for arm64 vfs2 syscall module. 3, add tls value in ProtoBuf. Signed-off-by: Bin Lu <bin.lu@arm.com>
Diffstat (limited to 'pkg/sentry')
-rw-r--r--pkg/sentry/arch/arch_aarch64.go2
-rw-r--r--pkg/sentry/arch/registers.proto1
-rw-r--r--pkg/sentry/syscalls/linux/linux64.go4
-rw-r--r--pkg/sentry/syscalls/linux/vfs2/vfs2.go1
4 files changed, 6 insertions, 2 deletions
diff --git a/pkg/sentry/arch/arch_aarch64.go b/pkg/sentry/arch/arch_aarch64.go
index 0f433ee79..fd73751e7 100644
--- a/pkg/sentry/arch/arch_aarch64.go
+++ b/pkg/sentry/arch/arch_aarch64.go
@@ -154,6 +154,7 @@ func (s State) Proto() *rpb.Registers {
Sp: s.Regs.Sp,
Pc: s.Regs.Pc,
Pstate: s.Regs.Pstate,
+ Tls: s.Regs.TPIDR_EL0,
}
return &rpb.Registers{Arch: &rpb.Registers_Arm64{Arm64: regs}}
}
@@ -232,6 +233,7 @@ func (s *State) RegisterMap() (map[string]uintptr, error) {
"Sp": uintptr(s.Regs.Sp),
"Pc": uintptr(s.Regs.Pc),
"Pstate": uintptr(s.Regs.Pstate),
+ "Tls": uintptr(s.Regs.TPIDR_EL0),
}, nil
}
diff --git a/pkg/sentry/arch/registers.proto b/pkg/sentry/arch/registers.proto
index 60c027aab..2727ba08a 100644
--- a/pkg/sentry/arch/registers.proto
+++ b/pkg/sentry/arch/registers.proto
@@ -83,6 +83,7 @@ message ARM64Registers {
uint64 sp = 32;
uint64 pc = 33;
uint64 pstate = 34;
+ uint64 tls = 35;
}
message Registers {
oneof arch {
diff --git a/pkg/sentry/syscalls/linux/linux64.go b/pkg/sentry/syscalls/linux/linux64.go
index 5f26697d2..b293669de 100644
--- a/pkg/sentry/syscalls/linux/linux64.go
+++ b/pkg/sentry/syscalls/linux/linux64.go
@@ -527,8 +527,8 @@ var ARM64 = &kernel.SyscallTable{
96: syscalls.Supported("set_tid_address", SetTidAddress),
97: syscalls.PartiallySupported("unshare", Unshare, "Mount, cgroup namespaces not supported. Network namespaces supported but must be empty.", nil),
98: syscalls.PartiallySupported("futex", Futex, "Robust futexes not supported.", nil),
- 99: syscalls.Error("set_robust_list", syserror.ENOSYS, "Obsolete.", nil),
- 100: syscalls.Error("get_robust_list", syserror.ENOSYS, "Obsolete.", nil),
+ 99: syscalls.Supported("set_robust_list", SetRobustList),
+ 100: syscalls.Supported("get_robust_list", GetRobustList),
101: syscalls.Supported("nanosleep", Nanosleep),
102: syscalls.Supported("getitimer", Getitimer),
103: syscalls.Supported("setitimer", Setitimer),
diff --git a/pkg/sentry/syscalls/linux/vfs2/vfs2.go b/pkg/sentry/syscalls/linux/vfs2/vfs2.go
index 0df3bd449..41c25946d 100644
--- a/pkg/sentry/syscalls/linux/vfs2/vfs2.go
+++ b/pkg/sentry/syscalls/linux/vfs2/vfs2.go
@@ -227,6 +227,7 @@ func Override() {
s.Table[76] = syscalls.Supported("splice", Splice)
s.Table[77] = syscalls.Supported("tee", Tee)
s.Table[78] = syscalls.Supported("readlinkat", Readlinkat)
+ s.Table[79] = syscalls.Supported("newfstatat", Newfstatat)
s.Table[80] = syscalls.Supported("fstat", Fstat)
s.Table[81] = syscalls.Supported("sync", Sync)
s.Table[82] = syscalls.Supported("fsync", Fsync)