diff options
| author | Brandon Potter <brandon.potter@amd.com> | 2016-03-17 10:24:17 -0700 |
|---|---|---|
| committer | Brandon Potter <brandon.potter@amd.com> | 2016-03-17 10:24:17 -0700 |
| commit | a04fac976f02377237bb827d46854b669ebc2397 (patch) | |
| tree | 2f2a5e55e16b2c05e4d94e302081bb977e864a36 /src/arch/x86/linux/linux.hh | |
| parent | 3fa311e5acd58ce720014dd964728c2fa414ca6a (diff) | |
| download | gem5-a04fac976f02377237bb827d46854b669ebc2397.tar.xz | |
syscall_emul: extend mmap system call to support file backed mmaps
For O3, which has a stat that counts reg reads, there is an additional
reg read per mmap() call since there's an arg we no longer ignore.
Otherwise, stats should not be affected.
Diffstat (limited to 'src/arch/x86/linux/linux.hh')
| -rw-r--r-- | src/arch/x86/linux/linux.hh | 47 |
1 files changed, 42 insertions, 5 deletions
diff --git a/src/arch/x86/linux/linux.hh b/src/arch/x86/linux/linux.hh index 854ab00a0..ce395f17d 100644 --- a/src/arch/x86/linux/linux.hh +++ b/src/arch/x86/linux/linux.hh @@ -126,8 +126,27 @@ class X86Linux64 : public Linux static const int NUM_OPEN_FLAGS; - static const unsigned TGT_MAP_ANONYMOUS = 0x20; - static const unsigned TGT_MAP_FIXED = 0x10; + /// For mmap(). + static SyscallFlagTransTable mmapFlagTable[]; + + static const unsigned TGT_MAP_SHARED = 0x00001; + static const unsigned TGT_MAP_PRIVATE = 0x00002; + static const unsigned TGT_MAP_32BIT = 0x00040; + static const unsigned TGT_MAP_ANON = 0x00020; + static const unsigned TGT_MAP_DENYWRITE = 0x00800; + static const unsigned TGT_MAP_EXECUTABLE = 0x01000; + static const unsigned TGT_MAP_FILE = 0x00000; + static const unsigned TGT_MAP_GROWSDOWN = 0x00100; + static const unsigned TGT_MAP_HUGETLB = 0x40000; + static const unsigned TGT_MAP_LOCKED = 0x02000; + static const unsigned TGT_MAP_NONBLOCK = 0x10000; + static const unsigned TGT_MAP_NORESERVE = 0x04000; + static const unsigned TGT_MAP_POPULATE = 0x08000; + static const unsigned TGT_MAP_STACK = 0x20000; + static const unsigned TGT_MAP_ANONYMOUS = 0x00020; + static const unsigned TGT_MAP_FIXED = 0x00010; + + static const unsigned NUM_MMAP_FLAGS; typedef struct { uint64_t iov_base; // void * @@ -147,7 +166,7 @@ class X86Linux64 : public Linux uint64_t totalhigh; /* Total high memory size */ uint64_t freehigh; /* Available high memory size */ uint64_t mem_unit; /* Memory unit size in bytes */ - } tgt_sysinfo; + } tgt_sysinfo; }; @@ -236,8 +255,26 @@ class X86Linux32 : public Linux static const int NUM_OPEN_FLAGS; - static const unsigned TGT_MAP_ANONYMOUS = 0x20; - static const unsigned TGT_MAP_FIXED = 0x10; + static SyscallFlagTransTable mmapFlagTable[]; + + static const unsigned TGT_MAP_SHARED = 0x00001; + static const unsigned TGT_MAP_PRIVATE = 0x00002; + static const unsigned TGT_MAP_32BIT = 0x00040; + static const unsigned TGT_MAP_ANON = 0x00020; + static const unsigned TGT_MAP_DENYWRITE = 0x00800; + static const unsigned TGT_MAP_EXECUTABLE = 0x01000; + static const unsigned TGT_MAP_FILE = 0x00000; + static const unsigned TGT_MAP_GROWSDOWN = 0x00100; + static const unsigned TGT_MAP_HUGETLB = 0x40000; + static const unsigned TGT_MAP_LOCKED = 0x02000; + static const unsigned TGT_MAP_NONBLOCK = 0x10000; + static const unsigned TGT_MAP_NORESERVE = 0x04000; + static const unsigned TGT_MAP_POPULATE = 0x08000; + static const unsigned TGT_MAP_STACK = 0x20000; + static const unsigned TGT_MAP_ANONYMOUS = 0x00020; + static const unsigned TGT_MAP_FIXED = 0x00010; + + static const unsigned NUM_MMAP_FLAGS; typedef struct { int32_t uptime; /* Seconds since boot */ |