uclibc: fix semver files, add misc symbols

ci/docker/armv7-unknown-linux-uclibceabihf/Dockerfile

@@ -0,0 +1,17 @@
+FROM ubuntu:20.04
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        gcc libc6-dev qemu-user ca-certificates qemu-system-arm curl \
+        xz-utils patch
+
+RUN mkdir /toolchain
+
+RUN curl --retry 5 -L https://toolchains.bootlin.com/downloads/releases/toolchains/armv7-eabihf/tarballs/armv7-eabihf--uclibc--bleeding-edge-2020.08-1.tar.bz2 | \
+    tar xjf - -C /toolchain --strip-components=1
+RUN /toolchain/relocate-sdk.sh
+
+ENV PATH=$PATH:/rust/bin:/toolchain/bin \
+    STAGING_DIR=/toolchain/armv7-buildroot-linux-uclibceabihf/sysroot \
+    CC_armv7_unknown_linux_uclibc=armv7-buildroot-linux-uclibc-gcc \
+    CARGO_TARGET_ARMV7_UNKNOWN_LINUX_UCLIBCEABIHF_LINKER=armv7-buildroot-linux-uclibc-gcc \
+    CARGO_TARGET_ARMV7_UNKNOWN_LINUX_UCLIBCEABIHF_RUNNER="qemu-arm -L /toolchain/arm-buildroot-linux-uclibcgnueabihf/sysroot/"

ci/docker/mipsel-unknown-linux-uclibc/Dockerfile

@@ -0,0 +1,22 @@
+FROM ubuntu:20.04
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        gcc libc6-dev qemu-user ca-certificates qemu-system-mipsel curl \
+        xz-utils patch
+
+RUN mkdir /toolchain
+
+# binutils	2.33.1
+# gcc	9.3.0
+# gdb	8.3.1
+# linux-headers	4.9.234
+# uclibc	1.0.34
+RUN curl --retry 5 -L https://toolchains.bootlin.com/downloads/releases/toolchains/mips32el/tarballs/mips32el--uclibc--stable-2020.08-1.tar.bz2 | \
+    tar xjf - -C /toolchain --strip-components=1
+RUN /toolchain/relocate-sdk.sh
+
+ENV PATH=$PATH:/rust/bin:/toolchain/bin \
+    STAGING_DIR=/toolchain/mipsel-buildroot-linux-uclibc/sysroot \
+    CC_mipsel_unknown_linux_uclibc=mipsel-buildroot-linux-uclibc-gcc \
+    CARGO_TARGET_MIPSEL_UNKNOWN_LINUX_UCLIBC_LINKER=mipsel-buildroot-linux-uclibc-gcc \
+    CARGO_TARGET_MIPSEL_UNKNOWN_LINUX_UCLIBC_RUNNER="qemu-mipsel -L /toolchain/mipsel-buildroot-linux-uclibc/sysroot/"

libc-test/build.rs

@@ -2846,6 +2846,35 @@ fn test_linux(target: &str) {
             | "SW_CNT"
                 if mips || ppc64 || riscv64 || sparc64 => true,
 
+            // kernel constants not available in uclibc 1.0.34
+            | "ADDR_COMPAT_LAYOUT"
+            | "ADDR_LIMIT_3GB"
+            | "ADDR_NO_RANDOMIZE"
+            | "CLONE_NEWCGROUP"
+            | "EXTPROC"
+            | "FAN_MARK_FILESYSTEM"
+            | "FAN_MARK_INODE"
+            | "IPPROTO_BEETPH"
+            | "IPPROTO_MPLS"
+            | "IPV6_HDRINCL"
+            | "IPV6_MULTICAST_ALL"
+            | "IPV6_PMTUDISC_INTERFACE"
+            | "IPV6_PMTUDISC_OMIT"
+            | "IPV6_ROUTER_ALERT_ISOLATE"
+            | "O_TMPFILE"
+            | "PACKET_MR_UNICAST"
+            | "PTRACE_EVENT_STOP"
+            | "PTRACE_O_EXITKILL"
+            | "PTRACE_O_SUSPEND_SECCOM"
+            | "PTRACE_O_SUSPEND_SECCOMP"
+            | "PTRACE_PEEKSIGINFO"
+            | "READ_IMPLIES_EXEC"
+            | "RUSAGE_THREAD"
+            | "SHM_EXEC"
+            | "UDP_GRO"
+            | "UDP_SEGMENT"
+                if uclibc => true,
+
             _ => false,
         }
     });
@@ -2923,6 +2952,9 @@ fn test_linux(target: &str) {
 
             "reallocarray" if musl => true,
 
+            // Not defined in uclibc as of 1.0.34
+            "gettid" if uclibc => true,
+
             _ => false,
         }
     });

libc-test/semver/linux-gnu.txt

@@ -15,6 +15,11 @@ ADJ_TICK
 ADJ_TIMECONST
 AFFS_SUPER_MAGIC
 AFS_SUPER_MAGIC
+AF_MPLS
+AF_XDP
+AIO_ALLDONE
+AIO_CANCELED
+AIO_NOTCANCELED
 AT_STATX_DONT_SYNC
 AT_STATX_FORCE_SYNC
 AT_STATX_SYNC_AS_STAT
@@ -54,6 +59,8 @@ EMPTY
 EXT2_SUPER_MAGIC
 EXT3_SUPER_MAGIC
 EXT4_SUPER_MAGIC
+Elf32_Chdr
+Elf64_Chdr
 F2FS_SUPER_MAGIC
 FDPIC_FUNCPTRS
 FUTEXFS_SUPER_MAGIC
@@ -111,6 +118,11 @@ LC_PAPER
 LC_PAPER_MASK
 LC_TELEPHONE
 LC_TELEPHONE_MASK
+LIO_NOP
+LIO_NOWAIT
+LIO_READ
+LIO_WAIT
+LIO_WRITE
 LM_ID_BASE
 LM_ID_NEWLM
 LOGIN_PROCESS
@@ -316,6 +328,9 @@ OLD_TIME
 OPENPROM_SUPER_MAGIC
 OVERLAYFS_SUPER_MAGIC
 O_FSYNC
+PF_IB
+PF_MPLS
+PF_XDP
 PROC_SUPER_MAGIC
 PTHREAD_MUTEX_ADAPTIVE_NP
 QNX4_SUPER_MAGIC
@@ -524,6 +539,14 @@ __priority_which_t
 __rlimit_resource_t
 __timeval
 adjtimex
+aio_cancel
+aio_error
+aio_fsync
+aio_read
+aio_return
+aio_suspend
+aio_write
+aiocb
 backtrace
 clock_adjtime
 copy_file_range
@@ -532,7 +555,10 @@ dlmopen
 endutxent
 explicit_bzero
 fgetspent_r
+futimes
+getauxval
 getgrent_r
+getloadavg
 getpt
 getpwent_r
 getpwnam_r
@@ -541,11 +567,12 @@ getutxent
 getutxid
 getutxline
 glob
+glob_t
 glob64
 glob64_t
-glob_t
 globfree
 globfree64
+lio_listio
 mallinfo
 mallinfo2
 malloc_info
@@ -557,7 +584,13 @@ nl_pktinfo
 ntp_adjtime
 ntp_gettime
 ntptimeval
+open_wmemstream
 preadv2
+preadv64
+prlimit
+prlimit64
+process_vm_readv
+process_vm_writev
 pthread_attr_getaffinity_np
 pthread_attr_setaffinity_np
 pthread_getname_np
@@ -567,6 +600,7 @@ pthread_rwlockattr_setkind_np
 pthread_setname_np
 pututxline
 pwritev2
+pwritev64
 qsort_r
 reallocarray
 semid_ds

libc-test/semver/linux-musl.txt

@@ -1,8 +1,42 @@
 # TODO: musl.
+AF_IB
+AF_MPLS
+AF_XDP
+AIO_ALLDONE
+AIO_CANCELED
+AIO_NOTCANCELED
+Elf32_Chdr
+Elf64_Chdr
+LIO_NOP
+LIO_NOWAIT
+LIO_READ
+LIO_WAIT
+LIO_WRITE
+PF_IB
+PF_MPLS
+PF_XDP
 adjtimex
+aio_cancel
+aio_error
+aio_fsync
+aio_read
+aio_return
+aio_suspend
+aio_write
+aiocb
 clock_adjtime
 explicit_bzero
+futimes
+getauxval
+getloadavg
+lio_listio
 ntptimeval
+open_wmemstream
+preadv64
+prlimit
+prlimit64
+process_vm_readv
+process_vm_writev
+pwritev64
 reallocarray
 timex
-

libc-test/semver/linux.txt

@@ -35,7 +35,6 @@ AF_CAIF
 AF_CAN
 AF_DECnet
 AF_ECONET
-AF_IB
 AF_IEEE802154
 AF_IPX
 AF_IRDA
@@ -44,7 +43,6 @@ AF_IUCV
 AF_KEY
 AF_LLC
 AF_LOCAL
-AF_MPLS
 AF_NETBEUI
 AF_NETLINK
 AF_NETROM
@@ -62,10 +60,6 @@ AF_TIPC
 AF_VSOCK
 AF_WANPIPE
 AF_X25
-AF_XDP
-AIO_ALLDONE
-AIO_CANCELED
-AIO_NOTCANCELED
 AI_ADDRCONFIG
 AI_ALL
 AI_CANONNAME
@@ -513,7 +507,6 @@ EXTA
 EXTB
 EXTPROC
 Elf32_Addr
-Elf32_Chdr
 Elf32_Ehdr
 Elf32_Half
 Elf32_Off
@@ -523,7 +516,6 @@ Elf32_Shdr
 Elf32_Sym
 Elf32_Word
 Elf64_Addr
-Elf64_Chdr
 Elf64_Ehdr
 Elf64_Half
 Elf64_Off
@@ -1050,11 +1042,6 @@ LINUX_REBOOT_MAGIC2
 LINUX_REBOOT_MAGIC2A
 LINUX_REBOOT_MAGIC2B
 LINUX_REBOOT_MAGIC2C
-LIO_NOP
-LIO_NOWAIT
-LIO_READ
-LIO_WAIT
-LIO_WRITE
 LOG_AUTHPRIV
 LOG_CRON
 LOG_FTP
@@ -1483,7 +1470,6 @@ PF_CAIF
 PF_CAN
 PF_DECnet
 PF_ECONET
-PF_IB
 PF_IEEE802154
 PF_IPX
 PF_IRDA
@@ -1492,7 +1478,6 @@ PF_IUCV
 PF_KEY
 PF_LLC
 PF_LOCAL
-PF_MPLS
 PF_NETBEUI
 PF_NETLINK
 PF_NETROM
@@ -1510,7 +1495,6 @@ PF_TIPC
 PF_VSOCK
 PF_WANPIPE
 PF_X25
-PF_XDP
 PIPE_BUF
 PM_STR
 POLLRDBAND
@@ -2643,14 +2627,6 @@ accept4
 acct
 addmntent
 af_alg_iv
-aio_cancel
-aio_error
-aio_fsync
-aio_read
-aio_return
-aio_suspend
-aio_write
-aiocb
 arpd_request
 arphdr
 arpreq
@@ -2741,9 +2717,7 @@ fstatvfs64
 ftello64
 ftok
 ftruncate64
-futimes
 genlmsghdr
-getauxval
 getdomainname
 getdtablesize
 getgrent
@@ -2755,7 +2729,6 @@ getgrouplist
 gethostid
 getifaddrs
 getline
-getloadavg
 getmntent
 getnameinfo
 getpriority
@@ -2805,7 +2778,6 @@ key_t
 killpg
 labs
 lgetxattr
-lio_listio
 listxattr
 llistxattr
 lockf
@@ -2866,7 +2838,6 @@ nlmsghdr
 off64_t
 open64
 open_memstream
-open_wmemstream
 openat
 openat64
 openpty
@@ -2907,11 +2878,6 @@ ppoll
 prctl
 pread64
 preadv
-preadv64
-prlimit
-prlimit64
-process_vm_readv
-process_vm_writev
 pthread_attr_getguardsize
 pthread_attr_getstack
 pthread_cancel
@@ -2941,7 +2907,6 @@ ptrace
 ptsname_r
 pwrite64
 pwritev
-pwritev64
 qsort
 quotactl
 rand