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| 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/power/linux/linux.cc | |
| 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/power/linux/linux.cc')
| -rw-r--r-- | src/arch/power/linux/linux.cc | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/src/arch/power/linux/linux.cc b/src/arch/power/linux/linux.cc index f73dd063b..6382ca72a 100644 --- a/src/arch/power/linux/linux.cc +++ b/src/arch/power/linux/linux.cc @@ -29,10 +29,11 @@ * Authors: Timothy M. Jones */ -#include <fcntl.h> - #include "arch/power/linux/linux.hh" +#include <fcntl.h> +#include <sys/mman.h> + // open(2) flags translation table SyscallFlagTransTable PowerLinux::openFlagTable[] = { #ifdef _MSC_VER @@ -105,3 +106,28 @@ SyscallFlagTransTable PowerLinux::openFlagTable[] = { const int PowerLinux::NUM_OPEN_FLAGS = (sizeof(PowerLinux::openFlagTable)/sizeof(PowerLinux::openFlagTable[0])); +// mmap(2) flags translation table +SyscallFlagTransTable PowerLinux::mmapFlagTable[] = { + { PowerLinux::TGT_MAP_SHARED, MAP_SHARED }, + { PowerLinux::TGT_MAP_PRIVATE, MAP_PRIVATE }, + { PowerLinux::TGT_MAP_ANON, MAP_ANON }, + { PowerLinux::TGT_MAP_DENYWRITE, MAP_DENYWRITE }, + { PowerLinux::TGT_MAP_EXECUTABLE, MAP_EXECUTABLE }, + { PowerLinux::TGT_MAP_FILE, MAP_FILE }, + { PowerLinux::TGT_MAP_GROWSDOWN, MAP_GROWSDOWN }, + { PowerLinux::TGT_MAP_HUGETLB, MAP_HUGETLB }, + { PowerLinux::TGT_MAP_LOCKED, MAP_LOCKED }, + { PowerLinux::TGT_MAP_NONBLOCK, MAP_NONBLOCK }, + { PowerLinux::TGT_MAP_NORESERVE, MAP_NORESERVE }, + { PowerLinux::TGT_MAP_POPULATE, MAP_POPULATE }, +#ifdef MAP_STACK + { PowerLinux::TGT_MAP_STACK, MAP_STACK }, +#endif + { PowerLinux::TGT_MAP_ANONYMOUS, MAP_ANONYMOUS }, + { PowerLinux::TGT_MAP_FIXED, MAP_FIXED }, +}; + +const unsigned PowerLinux::NUM_MMAP_FLAGS = + sizeof(PowerLinux::mmapFlagTable) / + sizeof(PowerLinux::mmapFlagTable[0]); + |