arch, base, dev, kern, sym: FreeBSD support

This adds support for FreeBSD/aarch64 FS and SE mode (basic set of syscalls only)

Committed by: Nilay Vaish <nilay@cs.wisc.edu>

4 files changed, 28 insertions, 4 deletions

diff --git a/src/base/loader/elf_object.cc b/src/base/loader/elf_object.cc
index 4abf0a432..ed4fee37a 100644
--- a/src/base/loader/elf_object.cc
+++ b/src/base/loader/elf_object.cc
@@ -150,6 +150,9 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
           case ELFOSABI_ARM:
             opSys = ObjectFile::LinuxArmOABI;
             break;
+          case ELFOSABI_FREEBSD:
+            opSys = ObjectFile::FreeBSD;
+            break;
           default:
             opSys = ObjectFile::UnknownOpSys;
         }
@@ -160,7 +163,8 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
             Elf_Scn *section;
             GElf_Shdr shdr;
             Elf_Data *data;
-            uint32_t osAbi;;
+            uint32_t osAbi;
+            uint32_t *elem;
             int secIdx = 1;
 
             // Get the first section
@@ -194,6 +198,16 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data)
                         opSys = ObjectFile::Solaris;
                 if (!strcmp(".stab.index", elf_strptr(elf, ehdr.e_shstrndx, shdr.sh_name)))
                         opSys = ObjectFile::Solaris;
+                if (shdr.sh_type == SHT_NOTE && !strcmp(".note.tag",
+                            elf_strptr(elf, ehdr.e_shstrndx, shdr.sh_name))) {
+                    data = elf_rawdata(section, NULL);
+                    assert(data->d_buf);
+                    elem = (uint32_t *)data->d_buf;
+                    if (elem[0] == 0x8) { //size of name
+                        if (memcmp((void *)&elem[3], "FreeBSD", 0x8) == 0)
+                                opSys = ObjectFile::FreeBSD;
+                    }
+                }
 
             section = elf_getscn(elf, ++secIdx);
             } // while sections
diff --git a/src/base/loader/object_file.hh b/src/base/loader/object_file.hh
index 09cde5b53..37f2aa585 100644
--- a/src/base/loader/object_file.hh
+++ b/src/base/loader/object_file.hh
@@ -63,7 +63,8 @@ class ObjectFile
         Tru64,
         Linux,
         Solaris,
-        LinuxArmOABI
+        LinuxArmOABI,
+        FreeBSD
     };
 
   protected:
diff --git a/src/base/output.cc b/src/base/output.cc
index da9a551fa..ce1b49a82 100644
--- a/src/base/output.cc
+++ b/src/base/output.cc
@@ -32,6 +32,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <dirent.h>
+#include <unistd.h>
 
 #include <cassert>
 #include <cerrno>
diff --git a/src/base/vnc/vncserver.cc b/src/base/vnc/vncserver.cc
index 77a4316ab..6dc2f2f10 100644
--- a/src/base/vnc/vncserver.cc
+++ b/src/base/vnc/vncserver.cc
@@ -44,16 +44,24 @@
 
 #include <sys/ioctl.h>
 #include <sys/stat.h>
+
+#if defined(__FreeBSD__)
+#include <termios.h>
+
+#else
 #include <sys/termios.h>
-#include <sys/types.h>
+
+#endif
+#include "base/vnc/vncserver.hh"
+
 #include <fcntl.h>
 #include <poll.h>
+#include <sys/types.h>
 #include <unistd.h>
 
 #include <cerrno>
 #include <cstdio>
 
-#include "base/vnc/vncserver.hh"
 #include "base/atomicio.hh"
 #include "base/bitmap.hh"
 #include "base/misc.hh"