diff options
author | Helge Deller <deller@gmx.de> | 2017-10-31 13:53:58 +0100 |
---|---|---|
committer | Riku Voipio <riku.voipio@linaro.org> | 2017-11-07 21:58:13 +0200 |
commit | 541e1690420d293c1b09eeb128fac74e98cbef7a (patch) | |
tree | f42e3baff4cd927d209bd929c58e84a5c4ef37d6 /linux-user | |
parent | 3d60c84deaa11826ff0bc7599aeb73cad54c4fbf (diff) | |
download | qemu-541e1690420d293c1b09eeb128fac74e98cbef7a.zip qemu-541e1690420d293c1b09eeb128fac74e98cbef7a.tar.gz qemu-541e1690420d293c1b09eeb128fac74e98cbef7a.tar.bz2 |
linux-user: Handle TARGET_MAP_STACK and TARGET_MAP_HUGETLB
Add the missing defines and for TARGET_MAP_STACK and TARGET_MAP_HUGETLB
for alpha, mips, ppc, x86, hppa. Fix the mmap_flags translation table
to translate MAP_HUGETLB between host and target architecture, and to
drop MAP_STACK.
Signed-off-by: Helge Deller <deller@gmx.de>
Message-Id: <20170311183016.GA20514@ls3530.fritz.box>
[rth: Drop MAP_STACK instead of translating it, since it is ignored
in the kernel anyway. Fix tabs to spaces.]
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user')
-rw-r--r-- | linux-user/syscall.c | 31 | ||||
-rw-r--r-- | linux-user/syscall_defs.h | 10 |
2 files changed, 30 insertions, 11 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index d4497de..8047bf3 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -5872,17 +5872,26 @@ static const StructEntry struct_termios_def = { }; static bitmask_transtbl mmap_flags_tbl[] = { - { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, - { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, - { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, - { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, - { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, - { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, - { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, - { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, - { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, MAP_NORESERVE, - MAP_NORESERVE }, - { 0, 0, 0, 0 } + { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, + { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, + { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, + { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, + MAP_ANONYMOUS, MAP_ANONYMOUS }, + { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, + MAP_GROWSDOWN, MAP_GROWSDOWN }, + { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, + MAP_DENYWRITE, MAP_DENYWRITE }, + { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, + MAP_EXECUTABLE, MAP_EXECUTABLE }, + { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, + { TARGET_MAP_NORESERVE, TARGET_MAP_NORESERVE, + MAP_NORESERVE, MAP_NORESERVE }, + { TARGET_MAP_HUGETLB, TARGET_MAP_HUGETLB, MAP_HUGETLB, MAP_HUGETLB }, + /* MAP_STACK had been ignored by the kernel for quite some time. + Recognize it for the target insofar as we do not want to pass + it through to the host. */ + { TARGET_MAP_STACK, TARGET_MAP_STACK, 0, 0 }, + { 0, 0, 0, 0 } }; #if defined(TARGET_I386) diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index daa2a57..bec3680 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -1353,6 +1353,8 @@ struct target_winsize { #define TARGET_MAP_NORESERVE 0x0400 /* don't check for reservations */ #define TARGET_MAP_POPULATE 0x10000 /* populate (prefault) pagetables */ #define TARGET_MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define TARGET_MAP_STACK 0x40000 /* ignored */ +#define TARGET_MAP_HUGETLB 0x80000 /* create a huge page mapping */ #elif defined(TARGET_PPC) #define TARGET_MAP_FIXED 0x10 /* Interpret addr exactly */ #define TARGET_MAP_ANONYMOUS 0x20 /* don't use a file */ @@ -1363,6 +1365,8 @@ struct target_winsize { #define TARGET_MAP_NORESERVE 0x0040 /* don't check for reservations */ #define TARGET_MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define TARGET_MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define TARGET_MAP_STACK 0x20000 /* ignored */ +#define TARGET_MAP_HUGETLB 0x40000 /* create a huge page mapping */ #elif defined(TARGET_ALPHA) #define TARGET_MAP_ANONYMOUS 0x10 /* don't use a file */ #define TARGET_MAP_FIXED 0x100 /* Interpret addr exactly */ @@ -1373,6 +1377,8 @@ struct target_winsize { #define TARGET_MAP_NORESERVE 0x10000 /* no check for reservations */ #define TARGET_MAP_POPULATE 0x20000 /* pop (prefault) pagetables */ #define TARGET_MAP_NONBLOCK 0x40000 /* do not block on IO */ +#define TARGET_MAP_STACK 0x80000 /* ignored */ +#define TARGET_MAP_HUGETLB 0x100000 /* create a huge page mapping */ #elif defined(TARGET_HPPA) #define TARGET_MAP_ANONYMOUS 0x10 /* don't use a file */ #define TARGET_MAP_FIXED 0x04 /* Interpret addr exactly */ @@ -1383,6 +1389,8 @@ struct target_winsize { #define TARGET_MAP_NORESERVE 0x04000 /* no check for reservations */ #define TARGET_MAP_POPULATE 0x10000 /* pop (prefault) pagetables */ #define TARGET_MAP_NONBLOCK 0x20000 /* do not block on IO */ +#define TARGET_MAP_STACK 0x40000 /* ignored */ +#define TARGET_MAP_HUGETLB 0x80000 /* create a huge page mapping */ #else #define TARGET_MAP_FIXED 0x10 /* Interpret addr exactly */ #define TARGET_MAP_ANONYMOUS 0x20 /* don't use a file */ @@ -1393,6 +1401,8 @@ struct target_winsize { #define TARGET_MAP_NORESERVE 0x4000 /* don't check for reservations */ #define TARGET_MAP_POPULATE 0x8000 /* populate (prefault) pagetables */ #define TARGET_MAP_NONBLOCK 0x10000 /* do not block on IO */ +#define TARGET_MAP_STACK 0x20000 /* ignored */ +#define TARGET_MAP_HUGETLB 0x40000 /* create a huge page mapping */ #define TARGET_MAP_UNINITIALIZED 0x4000000 /* for anonymous mmap, memory could be uninitialized */ #endif |