[PULL 0/8] Linux user for 7.0 patches

[PULL 0/8] Linux user for 7.0 patches

[Laurent Vivier]

The following changes since commit 48302d4eb628ff0bea4d7e92cbf6b726410eb4c3:

  Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20220126' into staging (2022-01-26 10:59:50 +0000)

are available in the Git repository at:

  https://gitlab.com/laurent_vivier/qemu.git tags/linux-user-for-7.0-pull-request

for you to fetch changes up to 244fd08323088db73590ff2317dfe86f810b51d7:

  linux-user/syscall: Translate TARGET_RLIMIT_RTTIME (2022-02-01 08:01:44 +0100)

----------------------------------------------------------------
Linux-user pull request 20220207

Fix target rlimits for alpha
Add startime in /proc/self/stat

----------------------------------------------------------------

Cameron Esfahani (1):
  linux-user: Implement starttime field in self stat emulation

Patrick Venture (1):
  linux-user: sigprocmask check read perms first

Paul Brook (1):
  linux-user: Fix inotify on aarch64

Peter Maydell (1):
  linux-user: Remove unnecessary 'aligned' attribute from TaskState

Serge Belyshev (3):
  linux-user/alpha: Fix target rlimits for alpha and rearrange for
    clarity
  linux-user: Move generic TARGET_RLIMIT* definitions to
    generic/target_resource.h
  linux-user/syscall: Translate TARGET_RLIMIT_RTTIME

Shu-Chun Weng (1):
  linux-user: rt_sigprocmask, check read perms first

 linux-user/aarch64/target_resource.h    |  1 +
 linux-user/alpha/target_resource.h      | 21 +++++++
 linux-user/arm/target_resource.h        |  1 +
 linux-user/cris/target_resource.h       |  1 +
 linux-user/fd-trans.c                   |  5 +-
 linux-user/generic/target_resource.h    | 38 ++++++++++++
 linux-user/hexagon/target_resource.h    |  1 +
 linux-user/hppa/target_resource.h       |  1 +
 linux-user/i386/target_resource.h       |  1 +
 linux-user/m68k/target_resource.h       |  1 +
 linux-user/main.c                       | 14 +++++
 linux-user/microblaze/target_resource.h |  1 +
 linux-user/mips/target_resource.h       | 24 ++++++++
 linux-user/mips64/target_resource.h     |  1 +
 linux-user/nios2/target_resource.h      |  1 +
 linux-user/openrisc/target_resource.h   |  1 +
 linux-user/ppc/target_resource.h        |  1 +
 linux-user/qemu.h                       |  9 ++-
 linux-user/riscv/target_resource.h      |  1 +
 linux-user/s390x/target_resource.h      |  1 +
 linux-user/sh4/target_resource.h        |  1 +
 linux-user/sparc/target_resource.h      | 17 ++++++
 linux-user/syscall.c                    | 79 +++++++++----------------
 linux-user/syscall_defs.h               | 56 +-----------------
 linux-user/x86_64/target_resource.h     |  1 +
 linux-user/xtensa/target_resource.h     |  1 +
 26 files changed, 167 insertions(+), 113 deletions(-)
 create mode 100644 linux-user/aarch64/target_resource.h
 create mode 100644 linux-user/alpha/target_resource.h
 create mode 100644 linux-user/arm/target_resource.h
 create mode 100644 linux-user/cris/target_resource.h
 create mode 100644 linux-user/generic/target_resource.h
 create mode 100644 linux-user/hexagon/target_resource.h
 create mode 100644 linux-user/hppa/target_resource.h
 create mode 100644 linux-user/i386/target_resource.h
 create mode 100644 linux-user/m68k/target_resource.h
 create mode 100644 linux-user/microblaze/target_resource.h
 create mode 100644 linux-user/mips/target_resource.h
 create mode 100644 linux-user/mips64/target_resource.h
 create mode 100644 linux-user/nios2/target_resource.h
 create mode 100644 linux-user/openrisc/target_resource.h
 create mode 100644 linux-user/ppc/target_resource.h
 create mode 100644 linux-user/riscv/target_resource.h
 create mode 100644 linux-user/s390x/target_resource.h
 create mode 100644 linux-user/sh4/target_resource.h
 create mode 100644 linux-user/sparc/target_resource.h
 create mode 100644 linux-user/x86_64/target_resource.h
 create mode 100644 linux-user/xtensa/target_resource.h

-- 
2.34.1

[PULL 1/8] linux-user: Remove unnecessary 'aligned' attribute from TaskState

[Laurent Vivier]

From: Peter Maydell <peter.maydell@linaro.org>

The linux-user struct TaskState has an 'aligned(16)' attribute.  When
the struct was first added in commit 851e67a1b46f in 2003, there was
a justification in a comment (still present in the source today):

/* NOTE: we force a big alignment so that the stack stored after is
   aligned too */

because the final field in the struct was "uint8_t stack[0];"
But that field was removed in commit 48e15fc2d in 2010 which
switched us to allocating the stack and the TaskState separately.
Because we allocate the structure with g_new0() rather than as
a local variable, the attribute made no difference to the alignment
of the structure anyway.

Remove the unnecessary attribute, and the corresponding comment.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220114153732.3767229-2-peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/qemu.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 7910ce59cc8c..9d2b3119d1fe 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -94,10 +94,6 @@ struct emulated_sigtable {
     target_siginfo_t info;
 };
 
-/*
- * NOTE: we force a big alignment so that the stack stored after is
- * aligned too
- */
 typedef struct TaskState {
     pid_t ts_tid;     /* tid (or pid) of this task */
 #ifdef TARGET_ARM
@@ -158,7 +154,7 @@ typedef struct TaskState {
 
     /* This thread's sigaltstack, if it has one */
     struct target_sigaltstack sigaltstack_used;
-} __attribute__((aligned(16))) TaskState;
+} TaskState;
 
 abi_long do_brk(abi_ulong new_brk);
 
-- 
2.34.1

[PULL 2/8] linux-user/alpha: Fix target rlimits for alpha and rearrange for clarity

[Laurent Vivier]

From: Serge Belyshev <belyshev@depni.sinp.msu.ru>

Alpha uses different values of some TARGET_RLIMIT_* constants, which were
missing and caused bugs like #577, fixed thus.  Also rearranged all three
(alpha, mips and sparc) that differ from everyone else for clarity.

Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/577
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <87y236lpwb.fsf@depni.sinp.msu.ru>
[lv: replace tabs by spaces]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall_defs.h | 67 +++++++++++++++++++--------------------
 1 file changed, 32 insertions(+), 35 deletions(-)

diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index f23f0a2178f8..c8690688b5b7 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -730,44 +730,41 @@ struct target_rlimit {
 #define TARGET_RLIM_INFINITY	((abi_ulong)-1)
 #endif
 
+#define TARGET_RLIMIT_CPU        0
+#define TARGET_RLIMIT_FSIZE      1
+#define TARGET_RLIMIT_DATA       2
+#define TARGET_RLIMIT_STACK      3
+#define TARGET_RLIMIT_CORE       4
 #if defined(TARGET_MIPS)
-#define TARGET_RLIMIT_CPU		0
-#define TARGET_RLIMIT_FSIZE		1
-#define TARGET_RLIMIT_DATA		2
-#define TARGET_RLIMIT_STACK		3
-#define TARGET_RLIMIT_CORE		4
-#define TARGET_RLIMIT_RSS		7
-#define TARGET_RLIMIT_NPROC		8
-#define TARGET_RLIMIT_NOFILE		5
-#define TARGET_RLIMIT_MEMLOCK		9
-#define TARGET_RLIMIT_AS		6
-#define TARGET_RLIMIT_LOCKS		10
-#define TARGET_RLIMIT_SIGPENDING	11
-#define TARGET_RLIMIT_MSGQUEUE		12
-#define TARGET_RLIMIT_NICE		13
-#define TARGET_RLIMIT_RTPRIO		14
-#else
-#define TARGET_RLIMIT_CPU		0
-#define TARGET_RLIMIT_FSIZE		1
-#define TARGET_RLIMIT_DATA		2
-#define TARGET_RLIMIT_STACK		3
-#define TARGET_RLIMIT_CORE		4
-#define TARGET_RLIMIT_RSS		5
-#if defined(TARGET_SPARC)
-#define TARGET_RLIMIT_NOFILE		6
-#define TARGET_RLIMIT_NPROC		7
+#define TARGET_RLIMIT_NOFILE     5
+#define TARGET_RLIMIT_AS         6
+#define TARGET_RLIMIT_RSS        7
+#define TARGET_RLIMIT_NPROC      8
+#define TARGET_RLIMIT_MEMLOCK    9
+#elif defined(TARGET_ALPHA)
+#define TARGET_RLIMIT_RSS        5
+#define TARGET_RLIMIT_NOFILE     6
+#define TARGET_RLIMIT_AS         7
+#define TARGET_RLIMIT_NPROC      8
+#define TARGET_RLIMIT_MEMLOCK    9
+#elif defined(TARGET_SPARC)
+#define TARGET_RLIMIT_RSS        5
+#define TARGET_RLIMIT_NOFILE     6
+#define TARGET_RLIMIT_NPROC      7
+#define TARGET_RLIMIT_MEMLOCK    8
+#define TARGET_RLIMIT_AS         9
 #else
-#define TARGET_RLIMIT_NPROC		6
-#define TARGET_RLIMIT_NOFILE		7
-#endif
-#define TARGET_RLIMIT_MEMLOCK		8
-#define TARGET_RLIMIT_AS		9
-#define TARGET_RLIMIT_LOCKS		10
-#define TARGET_RLIMIT_SIGPENDING	11
-#define TARGET_RLIMIT_MSGQUEUE		12
-#define TARGET_RLIMIT_NICE		13
-#define TARGET_RLIMIT_RTPRIO		14
+#define TARGET_RLIMIT_RSS        5
+#define TARGET_RLIMIT_NPROC      6
+#define TARGET_RLIMIT_NOFILE     7
+#define TARGET_RLIMIT_MEMLOCK    8
+#define TARGET_RLIMIT_AS         9
 #endif
+#define TARGET_RLIMIT_LOCKS      10
+#define TARGET_RLIMIT_SIGPENDING 11
+#define TARGET_RLIMIT_MSGQUEUE   12
+#define TARGET_RLIMIT_NICE       13
+#define TARGET_RLIMIT_RTPRIO     14
 
 struct target_pollfd {
     int fd;           /* file descriptor */
-- 
2.34.1

[PULL 3/8] linux-user: Fix inotify on aarch64

[Laurent Vivier]

From: Paul Brook <paul@nowt.org>

The inotify implementation originally called the raw host syscalls.
Commit 3b3f24add0 changed this to use the glibc wrappers. However ifdefs
in syscall.c still test for presence of the raw syscalls.

This causes a problem on e.g. aarch64 hosts which never had the
inotify_init syscall - it had been obsoleted by inotify_init1 before
aarch64 was invented! However it does have a perfectly good glibc
implementation of inotify_wait.

Fix this by removing all the raw __NR_inotify_* tests, and instead check
CONFIG_INOTIFY, which already tests for the glibc functionality we use.

Also remove the now-pointless sys_inotify* wrappers.

Tested using x86-64 inotifywatch on aarch64 host, and vice-versa

Signed-off-by: Paul Brook <paul@nowt.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220126202636.655289-1-paul@nowt.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/fd-trans.c |  5 ++---
 linux-user/syscall.c  | 50 +++++++++----------------------------------
 2 files changed, 12 insertions(+), 43 deletions(-)

diff --git a/linux-user/fd-trans.c b/linux-user/fd-trans.c
index a17d05c07923..7b25468d0208 100644
--- a/linux-user/fd-trans.c
+++ b/linux-user/fd-trans.c
@@ -1644,9 +1644,8 @@ TargetFdTrans target_eventfd_trans = {
     .target_to_host_data = swap_data_eventfd,
 };
 
-#if (defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)) || \
-    (defined(CONFIG_INOTIFY1) && defined(TARGET_NR_inotify_init1) && \
-     defined(__NR_inotify_init1))
+#if defined(CONFIG_INOTIFY) && (defined(TARGET_NR_inotify_init) || \
+        defined(TARGET_NR_inotify_init1))
 static abi_long host_to_target_data_inotify(void *buf, size_t len)
 {
     struct inotify_event *ev;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 5950222a77e0..2ca0f086dbfc 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -272,9 +272,6 @@ static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,	\
 #if defined(__NR_futex_time64)
 # define __NR_sys_futex_time64 __NR_futex_time64
 #endif
-#define __NR_sys_inotify_init __NR_inotify_init
-#define __NR_sys_inotify_add_watch __NR_inotify_add_watch
-#define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch
 #define __NR_sys_statx __NR_statx
 
 #if defined(__alpha__) || defined(__x86_64__) || defined(__s390x__)
@@ -477,33 +474,6 @@ static int sys_renameat2(int oldfd, const char *old,
 
 #ifdef CONFIG_INOTIFY
 #include <sys/inotify.h>
-
-#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
-static int sys_inotify_init(void)
-{
-  return (inotify_init());
-}
-#endif
-#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
-static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask)
-{
-  return (inotify_add_watch(fd, pathname, mask));
-}
-#endif
-#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
-static int sys_inotify_rm_watch(int fd, int32_t wd)
-{
-  return (inotify_rm_watch(fd, wd));
-}
-#endif
-#ifdef CONFIG_INOTIFY1
-#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
-static int sys_inotify_init1(int flags)
-{
-  return (inotify_init1(flags));
-}
-#endif
-#endif
 #else
 /* Userspace can usually survive runtime without inotify */
 #undef TARGET_NR_inotify_init
@@ -12341,35 +12311,35 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
     case TARGET_NR_futex_time64:
         return do_futex_time64(cpu, arg1, arg2, arg3, arg4, arg5, arg6);
 #endif
-#if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init)
+#ifdef CONFIG_INOTIFY
+#if defined(TARGET_NR_inotify_init)
     case TARGET_NR_inotify_init:
-        ret = get_errno(sys_inotify_init());
+        ret = get_errno(inotify_init());
         if (ret >= 0) {
             fd_trans_register(ret, &target_inotify_trans);
         }
         return ret;
 #endif
-#ifdef CONFIG_INOTIFY1
-#if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1)
+#if defined(TARGET_NR_inotify_init1) && defined(CONFIG_INOTIFY1)
     case TARGET_NR_inotify_init1:
-        ret = get_errno(sys_inotify_init1(target_to_host_bitmask(arg1,
+        ret = get_errno(inotify_init1(target_to_host_bitmask(arg1,
                                           fcntl_flags_tbl)));
         if (ret >= 0) {
             fd_trans_register(ret, &target_inotify_trans);
         }
         return ret;
 #endif
-#endif
-#if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch)
+#if defined(TARGET_NR_inotify_add_watch)
     case TARGET_NR_inotify_add_watch:
         p = lock_user_string(arg2);
-        ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3));
+        ret = get_errno(inotify_add_watch(arg1, path(p), arg3));
         unlock_user(p, arg2, 0);
         return ret;
 #endif
-#if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch)
+#if defined(TARGET_NR_inotify_rm_watch)
     case TARGET_NR_inotify_rm_watch:
-        return get_errno(sys_inotify_rm_watch(arg1, arg2));
+        return get_errno(inotify_rm_watch(arg1, arg2));
+#endif
 #endif
 
 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open)
-- 
2.34.1

[PULL 4/8] linux-user: rt_sigprocmask, check read perms first

[Laurent Vivier]

From: Shu-Chun Weng <scw@google.com>

Linux kernel does it this way (checks read permission before validating `how`)
and the latest version of ABSL's `AddressIsReadable()` depends on this
behavior.

c.f.  https://github.com/torvalds/linux/blob/9539ba4308ad5bdca6cb41c7b73cbb9f796dcdd7/kernel/signal.c#L3147
Reviewed-by: Patrick Venture <venture@google.com>
Signed-off-by: Shu-Chun Weng <scw@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Patrick Venture <venture@google.com>
Message-Id: <20220126212559.1936290-2-venture@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 2ca0f086dbfc..9f8b497fa353 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9478,6 +9478,13 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
             }
 
             if (arg2) {
+                p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1);
+                if (!p) {
+                    return -TARGET_EFAULT;
+                }
+                target_to_host_sigset(&set, p);
+                unlock_user(p, arg2, 0);
+                set_ptr = &set;
                 switch(how) {
                 case TARGET_SIG_BLOCK:
                     how = SIG_BLOCK;
@@ -9491,11 +9498,6 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
                 default:
                     return -TARGET_EINVAL;
                 }
-                if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
-                    return -TARGET_EFAULT;
-                target_to_host_sigset(&set, p);
-                unlock_user(p, arg2, 0);
-                set_ptr = &set;
             } else {
                 how = 0;
                 set_ptr = NULL;
-- 
2.34.1

[PULL 5/8] linux-user: sigprocmask check read perms first

[Laurent Vivier]

From: Patrick Venture <venture@google.com>

Linux kernel now checks the read permissions before validating `how`

Suggested-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Patrick Venture <venture@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220126212559.1936290-3-venture@google.com>
[lv: remove unneeded ")"]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/syscall.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 9f8b497fa353..84cfa223df4e 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -9435,6 +9435,13 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
             int how;
 
             if (arg2) {
+                p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1);
+                if (!p) {
+                    return -TARGET_EFAULT;
+                }
+                target_to_host_old_sigset(&set, p);
+                unlock_user(p, arg2, 0);
+                set_ptr = &set;
                 switch (arg1) {
                 case TARGET_SIG_BLOCK:
                     how = SIG_BLOCK;
@@ -9448,11 +9455,6 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
                 default:
                     return -TARGET_EINVAL;
                 }
-                if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1)))
-                    return -TARGET_EFAULT;
-                target_to_host_old_sigset(&set, p);
-                unlock_user(p, arg2, 0);
-                set_ptr = &set;
             } else {
                 how = 0;
                 set_ptr = NULL;
-- 
2.34.1

[PULL 6/8] linux-user: Implement starttime field in self stat emulation

[Laurent Vivier]

From: Cameron Esfahani <dirty@apple.com>

Instead of always returning 0, return actual starttime.

Signed-off-by: Cameron Esfahani <dirty@apple.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220128001251.45165-1-dirty@apple.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/main.c    | 14 ++++++++++++++
 linux-user/qemu.h    |  3 +++
 linux-user/syscall.c |  3 +++
 3 files changed, 20 insertions(+)

diff --git a/linux-user/main.c b/linux-user/main.c
index 16def5215d91..fbc9bcfd5f5f 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -190,12 +190,26 @@ void stop_all_tasks(void)
 /* Assumes contents are already zeroed.  */
 void init_task_state(TaskState *ts)
 {
+    long ticks_per_sec;
+    struct timespec bt;
+
     ts->used = 1;
     ts->sigaltstack_used = (struct target_sigaltstack) {
         .ss_sp = 0,
         .ss_size = 0,
         .ss_flags = TARGET_SS_DISABLE,
     };
+
+    /* Capture task start time relative to system boot */
+
+    ticks_per_sec = sysconf(_SC_CLK_TCK);
+
+    if ((ticks_per_sec > 0) && !clock_gettime(CLOCK_BOOTTIME, &bt)) {
+        /* start_boottime is expressed in clock ticks */
+        ts->start_boottime = bt.tv_sec * (uint64_t) ticks_per_sec;
+        ts->start_boottime += bt.tv_nsec * (uint64_t) ticks_per_sec /
+                              NANOSECONDS_PER_SECOND;
+    }
 }
 
 CPUArchState *cpu_copy(CPUArchState *env)
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index 9d2b3119d1fe..98dfbf20962b 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -154,6 +154,9 @@ typedef struct TaskState {
 
     /* This thread's sigaltstack, if it has one */
     struct target_sigaltstack sigaltstack_used;
+
+    /* Start time of task after system boot in clock ticks */
+    uint64_t start_boottime;
 } TaskState;
 
 abi_long do_brk(abi_ulong new_brk);
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 84cfa223df4e..b3948d13a9dd 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8077,6 +8077,9 @@ static int open_self_stat(void *cpu_env, int fd)
         } else if (i == 3) {
             /* ppid */
             g_string_printf(buf, FMT_pid " ", getppid());
+        } else if (i == 21) {
+            /* starttime */
+            g_string_printf(buf, "%" PRIu64 " ", ts->start_boottime);
         } else if (i == 27) {
             /* stack bottom */
             g_string_printf(buf, TARGET_ABI_FMT_ld " ", ts->info->start_stack);
-- 
2.34.1

[PULL 7/8] linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.h

[Laurent Vivier]

From: Serge Belyshev <belyshev@depni.sinp.msu.ru>

Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru>
Message-Id: <87ee4ql3yk.fsf_-_@depni.sinp.msu.ru>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/aarch64/target_resource.h    |  1 +
 linux-user/alpha/target_resource.h      | 21 ++++++++++
 linux-user/arm/target_resource.h        |  1 +
 linux-user/cris/target_resource.h       |  1 +
 linux-user/generic/target_resource.h    | 37 +++++++++++++++++
 linux-user/hexagon/target_resource.h    |  1 +
 linux-user/hppa/target_resource.h       |  1 +
 linux-user/i386/target_resource.h       |  1 +
 linux-user/m68k/target_resource.h       |  1 +
 linux-user/microblaze/target_resource.h |  1 +
 linux-user/mips/target_resource.h       | 24 +++++++++++
 linux-user/mips64/target_resource.h     |  1 +
 linux-user/nios2/target_resource.h      |  1 +
 linux-user/openrisc/target_resource.h   |  1 +
 linux-user/ppc/target_resource.h        |  1 +
 linux-user/riscv/target_resource.h      |  1 +
 linux-user/s390x/target_resource.h      |  1 +
 linux-user/sh4/target_resource.h        |  1 +
 linux-user/sparc/target_resource.h      | 17 ++++++++
 linux-user/syscall_defs.h               | 53 +------------------------
 linux-user/x86_64/target_resource.h     |  1 +
 linux-user/xtensa/target_resource.h     |  1 +
 22 files changed, 117 insertions(+), 52 deletions(-)
 create mode 100644 linux-user/aarch64/target_resource.h
 create mode 100644 linux-user/alpha/target_resource.h
 create mode 100644 linux-user/arm/target_resource.h
 create mode 100644 linux-user/cris/target_resource.h
 create mode 100644 linux-user/generic/target_resource.h
 create mode 100644 linux-user/hexagon/target_resource.h
 create mode 100644 linux-user/hppa/target_resource.h
 create mode 100644 linux-user/i386/target_resource.h
 create mode 100644 linux-user/m68k/target_resource.h
 create mode 100644 linux-user/microblaze/target_resource.h
 create mode 100644 linux-user/mips/target_resource.h
 create mode 100644 linux-user/mips64/target_resource.h
 create mode 100644 linux-user/nios2/target_resource.h
 create mode 100644 linux-user/openrisc/target_resource.h
 create mode 100644 linux-user/ppc/target_resource.h
 create mode 100644 linux-user/riscv/target_resource.h
 create mode 100644 linux-user/s390x/target_resource.h
 create mode 100644 linux-user/sh4/target_resource.h
 create mode 100644 linux-user/sparc/target_resource.h
 create mode 100644 linux-user/x86_64/target_resource.h
 create mode 100644 linux-user/xtensa/target_resource.h

diff --git a/linux-user/aarch64/target_resource.h b/linux-user/aarch64/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/aarch64/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/alpha/target_resource.h b/linux-user/alpha/target_resource.h
new file mode 100644
index 000000000000..c9b082faee4a
--- /dev/null
+++ b/linux-user/alpha/target_resource.h
@@ -0,0 +1,21 @@
+#ifndef ALPHA_TARGET_RESOURCE_H
+#define ALPHA_TARGET_RESOURCE_H
+
+#include "../generic/target_resource.h"
+
+#undef TARGET_RLIM_INFINITY
+#define TARGET_RLIM_INFINITY    0x7fffffffffffffffull
+
+#undef TARGET_RLIMIT_NOFILE
+#define TARGET_RLIMIT_NOFILE    6
+
+#undef TARGET_RLIMIT_AS
+#define TARGET_RLIMIT_AS        7
+
+#undef TARGET_RLIMIT_NPROC
+#define TARGET_RLIMIT_NPROC     8
+
+#undef TARGET_RLIMIT_MEMLOCK
+#define TARGET_RLIMIT_MEMLOCK   9
+
+#endif
diff --git a/linux-user/arm/target_resource.h b/linux-user/arm/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/arm/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/cris/target_resource.h b/linux-user/cris/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/cris/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/generic/target_resource.h b/linux-user/generic/target_resource.h
new file mode 100644
index 000000000000..f04c93b12596
--- /dev/null
+++ b/linux-user/generic/target_resource.h
@@ -0,0 +1,37 @@
+/*
+ * Target definitions of RLIMIT_* constants. These may be overridden by an
+ * architecture specific header if needed.
+ */
+
+#ifndef GENERIC_TARGET_RESOURCE_H
+#define GENERIC_TARGET_RESOURCE_H
+
+struct target_rlimit {
+    abi_ulong rlim_cur;
+    abi_ulong rlim_max;
+};
+
+struct target_rlimit64 {
+    uint64_t rlim_cur;
+    uint64_t rlim_max;
+};
+
+#define TARGET_RLIM_INFINITY    ((abi_ulong)-1)
+
+#define TARGET_RLIMIT_CPU               0
+#define TARGET_RLIMIT_FSIZE             1
+#define TARGET_RLIMIT_DATA              2
+#define TARGET_RLIMIT_STACK             3
+#define TARGET_RLIMIT_CORE              4
+#define TARGET_RLIMIT_RSS               5
+#define TARGET_RLIMIT_NPROC             6
+#define TARGET_RLIMIT_NOFILE            7
+#define TARGET_RLIMIT_MEMLOCK           8
+#define TARGET_RLIMIT_AS                9
+#define TARGET_RLIMIT_LOCKS             10
+#define TARGET_RLIMIT_SIGPENDING        11
+#define TARGET_RLIMIT_MSGQUEUE          12
+#define TARGET_RLIMIT_NICE              13
+#define TARGET_RLIMIT_RTPRIO            14
+
+#endif
diff --git a/linux-user/hexagon/target_resource.h b/linux-user/hexagon/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/hexagon/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/hppa/target_resource.h b/linux-user/hppa/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/hppa/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/i386/target_resource.h b/linux-user/i386/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/i386/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/m68k/target_resource.h b/linux-user/m68k/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/m68k/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/microblaze/target_resource.h b/linux-user/microblaze/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/microblaze/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/mips/target_resource.h b/linux-user/mips/target_resource.h
new file mode 100644
index 000000000000..6d131b041db9
--- /dev/null
+++ b/linux-user/mips/target_resource.h
@@ -0,0 +1,24 @@
+#ifndef MIPS_TARGET_RESOURCE_H
+#define MIPS_TARGET_RESOURCE_H
+
+#include "../generic/target_resource.h"
+
+#undef TARGET_RLIM_INFINITY
+#define TARGET_RLIM_INFINITY    0x7fffffffUL
+
+#undef TARGET_RLIMIT_NOFILE
+#define TARGET_RLIMIT_NOFILE    5
+
+#undef TARGET_RLIMIT_AS
+#define TARGET_RLIMIT_AS        6
+
+#undef TARGET_RLIMIT_RSS
+#define TARGET_RLIMIT_RSS       7
+
+#undef TARGET_RLIMIT_NPROC
+#define TARGET_RLIMIT_NPROC     8
+
+#undef TARGET_RLIMIT_MEMLOCK
+#define TARGET_RLIMIT_MEMLOCK   9
+
+#endif
diff --git a/linux-user/mips64/target_resource.h b/linux-user/mips64/target_resource.h
new file mode 100644
index 000000000000..fe29002a12eb
--- /dev/null
+++ b/linux-user/mips64/target_resource.h
@@ -0,0 +1 @@
+#include "../mips/target_resource.h"
diff --git a/linux-user/nios2/target_resource.h b/linux-user/nios2/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/nios2/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/openrisc/target_resource.h b/linux-user/openrisc/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/openrisc/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/ppc/target_resource.h b/linux-user/ppc/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/ppc/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/riscv/target_resource.h b/linux-user/riscv/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/riscv/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/s390x/target_resource.h b/linux-user/s390x/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/s390x/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/sh4/target_resource.h b/linux-user/sh4/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/sh4/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/sparc/target_resource.h b/linux-user/sparc/target_resource.h
new file mode 100644
index 000000000000..d9a2fb814a61
--- /dev/null
+++ b/linux-user/sparc/target_resource.h
@@ -0,0 +1,17 @@
+#ifndef SPARC_TARGET_RESOURCE_H
+#define SPARC_TARGET_RESOURCE_H
+
+#include "../generic/target_resource.h"
+
+#if TARGET_ABI_BITS == 32
+#undef TARGET_RLIM_INFINITY
+#define TARGET_RLIM_INFINITY    0x7fffffffUL
+#endif
+
+#undef TARGET_RLIMIT_NOFILE
+#define TARGET_RLIMIT_NOFILE    6
+
+#undef TARGET_RLIMIT_NPROC
+#define TARGET_RLIMIT_NPROC     7
+
+#endif
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index c8690688b5b7..78607effe847 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -717,54 +717,7 @@ typedef struct target_siginfo {
 #define TARGET_TRAP_HWBKPT      (4)     /* hardware breakpoint/watchpoint */
 #define TARGET_TRAP_UNK         (5)     /* undiagnosed trap */
 
-struct target_rlimit {
-        abi_ulong   rlim_cur;
-        abi_ulong   rlim_max;
-};
-
-#if defined(TARGET_ALPHA)
-#define TARGET_RLIM_INFINITY	0x7fffffffffffffffull
-#elif defined(TARGET_MIPS) || (defined(TARGET_SPARC) && TARGET_ABI_BITS == 32)
-#define TARGET_RLIM_INFINITY	0x7fffffffUL
-#else
-#define TARGET_RLIM_INFINITY	((abi_ulong)-1)
-#endif
-
-#define TARGET_RLIMIT_CPU        0
-#define TARGET_RLIMIT_FSIZE      1
-#define TARGET_RLIMIT_DATA       2
-#define TARGET_RLIMIT_STACK      3
-#define TARGET_RLIMIT_CORE       4
-#if defined(TARGET_MIPS)
-#define TARGET_RLIMIT_NOFILE     5
-#define TARGET_RLIMIT_AS         6
-#define TARGET_RLIMIT_RSS        7
-#define TARGET_RLIMIT_NPROC      8
-#define TARGET_RLIMIT_MEMLOCK    9
-#elif defined(TARGET_ALPHA)
-#define TARGET_RLIMIT_RSS        5
-#define TARGET_RLIMIT_NOFILE     6
-#define TARGET_RLIMIT_AS         7
-#define TARGET_RLIMIT_NPROC      8
-#define TARGET_RLIMIT_MEMLOCK    9
-#elif defined(TARGET_SPARC)
-#define TARGET_RLIMIT_RSS        5
-#define TARGET_RLIMIT_NOFILE     6
-#define TARGET_RLIMIT_NPROC      7
-#define TARGET_RLIMIT_MEMLOCK    8
-#define TARGET_RLIMIT_AS         9
-#else
-#define TARGET_RLIMIT_RSS        5
-#define TARGET_RLIMIT_NPROC      6
-#define TARGET_RLIMIT_NOFILE     7
-#define TARGET_RLIMIT_MEMLOCK    8
-#define TARGET_RLIMIT_AS         9
-#endif
-#define TARGET_RLIMIT_LOCKS      10
-#define TARGET_RLIMIT_SIGPENDING 11
-#define TARGET_RLIMIT_MSGQUEUE   12
-#define TARGET_RLIMIT_NICE       13
-#define TARGET_RLIMIT_RTPRIO     14
+#include "target_resource.h"
 
 struct target_pollfd {
     int fd;           /* file descriptor */
@@ -2769,10 +2722,6 @@ struct target_epoll_event {
 #define TARGET_EP_MAX_EVENTS (INT_MAX / sizeof(struct target_epoll_event))
 
 #endif
-struct target_rlimit64 {
-    uint64_t rlim_cur;
-    uint64_t rlim_max;
-};
 
 struct target_ucred {
     uint32_t pid;
diff --git a/linux-user/x86_64/target_resource.h b/linux-user/x86_64/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/x86_64/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
diff --git a/linux-user/xtensa/target_resource.h b/linux-user/xtensa/target_resource.h
new file mode 100644
index 000000000000..227259594c00
--- /dev/null
+++ b/linux-user/xtensa/target_resource.h
@@ -0,0 +1 @@
+#include "../generic/target_resource.h"
-- 
2.34.1

[PULL 8/8] linux-user/syscall: Translate TARGET_RLIMIT_RTTIME

[Laurent Vivier]

From: Serge Belyshev <belyshev@depni.sinp.msu.ru>

Signed-off-by: Serge Belyshev <belyshev@depni.sinp.msu.ru>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <87a6fel3w8.fsf_-_@depni.sinp.msu.ru>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 linux-user/generic/target_resource.h | 1 +
 linux-user/syscall.c                 | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/linux-user/generic/target_resource.h b/linux-user/generic/target_resource.h
index f04c93b12596..539d8c46772e 100644
--- a/linux-user/generic/target_resource.h
+++ b/linux-user/generic/target_resource.h
@@ -33,5 +33,6 @@ struct target_rlimit64 {
 #define TARGET_RLIMIT_MSGQUEUE          12
 #define TARGET_RLIMIT_NICE              13
 #define TARGET_RLIMIT_RTPRIO            14
+#define TARGET_RLIMIT_RTTIME            15
 
 #endif
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index b3948d13a9dd..b9b18a7eaffb 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -1053,6 +1053,8 @@ static inline int target_to_host_resource(int code)
         return RLIMIT_RSS;
     case TARGET_RLIMIT_RTPRIO:
         return RLIMIT_RTPRIO;
+    case TARGET_RLIMIT_RTTIME:
+        return RLIMIT_RTTIME;
     case TARGET_RLIMIT_SIGPENDING:
         return RLIMIT_SIGPENDING;
     case TARGET_RLIMIT_STACK:
-- 
2.34.1

Re: [PULL 0/8] Linux user for 7.0 patches

[Peter Maydell]

On Mon, 7 Feb 2022 at 09:09, Laurent Vivier <laurent@vivier.eu> wrote:
>
> The following changes since commit 48302d4eb628ff0bea4d7e92cbf6b726410eb4c3:
>
>   Merge remote-tracking branch 'remotes/dgilbert-gitlab/tags/pull-virtiofs-20220126' into staging (2022-01-26 10:59:50 +0000)
>
> are available in the Git repository at:
>
>   https://gitlab.com/laurent_vivier/qemu.git tags/linux-user-for-7.0-pull-request
>
> for you to fetch changes up to 244fd08323088db73590ff2317dfe86f810b51d7:
>
>   linux-user/syscall: Translate TARGET_RLIMIT_RTTIME (2022-02-01 08:01:44 +0100)
>
> ----------------------------------------------------------------
> Linux-user pull request 20220207
>
> Fix target rlimits for alpha
> Add startime in /proc/self/stat
>
> ----------------------------------------------------------------


Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/7.0
for any user-visible changes.

-- PMM