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linux-user: Handle TARGET_MAP_STACK and TARGET_MAP_HUGETLB

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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>
This commit is contained in:
Helge Deller 2017-10-31 13:53:58 +01:00 committed by Riku Voipio
parent 3d60c84dea
commit 541e169042
2 changed files with 30 additions and 11 deletions
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31
linux-user/syscall.c
View File

@ -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)

10
linux-user/syscall_defs.h
View File

@ -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