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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-4.1-pull-request' into staging

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Add /proc/hardware and /proc/cpuinfo,
update SIOCXXX ioctls,
fix shmat emulation,
add nanoseconds in stat,
init field fp_abi on mips

# gpg: Signature made Fri 24 May 2019 12:24:36 BST
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-4.1-pull-request:
  linux-user: Pass through nanosecond timestamp components for stat syscalls
  linux-user: Align mmap_find_vma to host page size
  linux-user: Fix shmat emulation by honoring host SHMLBA
  linux-user: Sanitize interp_info and, for mips only, init field fp_abi
  linux-user: Add support for SIOC<G|S>IFPFLAGS ioctls for all targets
  linux-user: Add support for SIOCSPGRP ioctl for all targets
  linux-user: Fix support for SIOCATMARK and SIOCGPGRP ioctls for xtensa
  linux-user: add pseudo /proc/hardware for m68k
  linux-user: add pseudo /proc/cpuinfo for sparc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
2019-05-24 12:47:49 +01:00
parent 40575757e1 5f992db605
commit a7b21f6762
6 changed files with 145 additions and 64 deletions
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49
linux-user/syscall.c
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@@ -3914,7 +3914,8 @@ static inline abi_ulong do_shmat(CPUArchState *cpu_env,
else {
abi_ulong mmap_start;
mmap_start = mmap_find_vma(0, shm_info.shm_segsz);
/* In order to use the host shmat, we need to honor host SHMLBA. */
mmap_start = mmap_find_vma(0, shm_info.shm_segsz, MAX(SHMLBA, shmlba));
if (mmap_start == -1) {
errno = ENOMEM;
@@ -6412,6 +6413,11 @@ static inline abi_long host_to_target_stat64(void *cpu_env,
__put_user(host_st->st_atime, &target_st->target_st_atime);
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
#if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
__put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
__put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
__put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
#endif
unlock_user_struct(target_st, target_addr, 1);
} else
#endif
@@ -6442,6 +6448,11 @@ static inline abi_long host_to_target_stat64(void *cpu_env,
__put_user(host_st->st_atime, &target_st->target_st_atime);
__put_user(host_st->st_mtime, &target_st->target_st_mtime);
__put_user(host_st->st_ctime, &target_st->target_st_ctime);
#if _POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700
__put_user(host_st->st_atim.tv_nsec, &target_st->target_st_atime_nsec);
__put_user(host_st->st_mtim.tv_nsec, &target_st->target_st_mtime_nsec);
__put_user(host_st->st_ctim.tv_nsec, &target_st->target_st_ctime_nsec);
#endif
unlock_user_struct(target_st, target_addr, 1);
}
@@ -6790,12 +6801,15 @@ static int is_proc_myself(const char *filename, const char *entry)
return 0;
}
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \
defined(TARGET_SPARC) || defined(TARGET_M68K)
static int is_proc(const char *filename, const char *entry)
{
return strcmp(filename, entry) == 0;
}
#endif
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
static int open_net_route(void *cpu_env, int fd)
{
FILE *fp;
@@ -6840,6 +6854,22 @@ static int open_net_route(void *cpu_env, int fd)
}
#endif
#if defined(TARGET_SPARC)
static int open_cpuinfo(void *cpu_env, int fd)
{
dprintf(fd, "type\t\t: sun4u\n");
return 0;
}
#endif
#if defined(TARGET_M68K)
static int open_hardware(void *cpu_env, int fd)
{
dprintf(fd, "Model:\t\tqemu-m68k\n");
return 0;
}
#endif
static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags, mode_t mode)
{
struct fake_open {
@@ -6855,6 +6885,12 @@ static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags,
{ "cmdline", open_self_cmdline, is_proc_myself },
#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
{ "/proc/net/route", open_net_route, is_proc },
#endif
#if defined(TARGET_SPARC)
{ "/proc/cpuinfo", open_cpuinfo, is_proc },
#endif
#if defined(TARGET_M68K)
{ "/proc/hardware", open_hardware, is_proc },
#endif
{ NULL, NULL, NULL }
};
@@ -8870,6 +8906,15 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1,
__put_user(st.st_atime, &target_st->target_st_atime);
__put_user(st.st_mtime, &target_st->target_st_mtime);
__put_user(st.st_ctime, &target_st->target_st_ctime);
#if (_POSIX_C_SOURCE >= 200809L || _XOPEN_SOURCE >= 700) && \
defined(TARGET_STAT_HAVE_NSEC)
__put_user(st.st_atim.tv_nsec,
&target_st->target_st_atime_nsec);
__put_user(st.st_mtim.tv_nsec,
&target_st->target_st_mtime_nsec);
__put_user(st.st_ctim.tv_nsec,
&target_st->target_st_ctime_nsec);
#endif
unlock_user_struct(target_st, arg2, 1);
}
}