fix compilation in PCM_USE_PCI_MM_LINUX mode

intel · Dec 20, 2018 · 4ce8d36 · 4ce8d36
1 parent 5847f63
commit 4ce8d36
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/Makefile b/Makefile
@@ -23,6 +23,9 @@ klocwork: $(EXE)
 
 CXXFLAGS += -Wall -g -O3 -Wno-unknown-pragmas
 
+# uncomment if your Linux kernel supports access to /dev/mem from user space
+# CXXFLAGS += -DPCM_USE_PCI_MM_LINUX
+
 # rely on Linux perf support (user needs CAP_SYS_ADMIN privileges), comment out to disable
 ifneq ($(wildcard /usr/include/linux/perf_event.h),)
 CXXFLAGS += -DPCM_USE_PERF

diff --git a/pci.cpp b/pci.cpp
@@ -429,8 +429,6 @@ PciHandle::~PciHandle()
     if (fd >= 0) ::close(fd);
 }
 
-#ifndef PCM_USE_PCI_MM_LINUX
-
 int PciHandle::openMcfgTable() {
     const char* path = "/sys/firmware/acpi/tables/MCFG";
     int handle = ::open(path, O_RDONLY);
@@ -450,6 +448,8 @@ int PciHandle::openMcfgTable() {
     return handle;
 }
 
+#ifndef PCM_USE_PCI_MM_LINUX
+
 PciHandleM::PciHandleM(uint32 bus_, uint32 device_, uint32 function_) :
     fd(-1),
     bus(bus_),