From af4bc8b33d1e59e13700ba18060eadbe22ebdf7d Mon Sep 17 00:00:00 2001
From: clc5q <clc5q@git.zephyr-software.com>
Date: Sat, 8 Aug 2015 05:28:07 +0000
Subject: [PATCH] Make reduced analysis threshold lower for STARS-IDA on 32-bit
platforms.
Former-commit-id: 0e9c94747b4c12e2e32833dca37f738e49e271be
---
include/interfaces/idapro/STARSProgram.h | 1 +
src/interfaces/idapro/STARSIDAProgram.cpp | 26 ++++++++++++++++++++++-
2 files changed, 26 insertions(+), 1 deletion(-)
diff --git a/include/interfaces/idapro/STARSProgram.h b/include/interfaces/idapro/STARSProgram.h
index ba490b17..73f686d4 100644
--- a/include/interfaces/idapro/STARSProgram.h
+++ b/include/interfaces/idapro/STARSProgram.h
@@ -46,6 +46,7 @@ public:
private:
// Data
+ std::size_t STARS_Platform_Bitwidth; // not binary, but the system OS we are running on
// Methods
void ComputeGlobalFieldOffsets(struct GlobalVar &CurrGlobal);
diff --git a/src/interfaces/idapro/STARSIDAProgram.cpp b/src/interfaces/idapro/STARSIDAProgram.cpp
index 5457b4d6..87049e47 100644
--- a/src/interfaces/idapro/STARSIDAProgram.cpp
+++ b/src/interfaces/idapro/STARSIDAProgram.cpp
@@ -3,6 +3,10 @@
#include <cstdint>
#include <cstdio>
#include <cassert>
+#include <cerrno>
+#include <cstdlib>
+
+#include <sys/utsname.h>
#include <pro.h>
#include <fpro.h>
@@ -28,6 +32,7 @@ using namespace std;
// Limit on bytes of code for full analysis
#define STARS_CODESIZE_FULL_ANALYSIS_LIMIT 8000000
+#define STARS_CODESIZE_FULL_ANALYSIS_LIMIT_32BIT_PLATFORMS 6500000
// Distinguish between indexed and direct accesses in global granularity?
// Set to zero until we can do more precise analyses of indexed accesses.
@@ -36,7 +41,26 @@ using namespace std;
// Set flags, take actions based on code size.
void STARS_IDA_Program_t::ReportTotalCodeSize(unsigned long long TotalCodeSize) {
this->SetTotalCodeSize(TotalCodeSize);
- this->SetReducedProcessingFlag(TotalCodeSize > STARS_CODESIZE_FULL_ANALYSIS_LIMIT);
+
+ struct utsname SysInfoBuf;
+ int ReturnCode = uname(&SysInfoBuf);
+ if (ReturnCode == -1) {
+ SMP_msg("ERROR: uname() failed.\n");
+ this->STARS_Platform_Bitwidth = 32;
+ }
+ else if (0 == strcmp("x86_64", SysInfoBuf.machine)) {
+ this->STARS_Platform_Bitwidth = 64;
+ SMP_msg("INFO: Platform bit width from uname() is 64\n");
+ }
+ else {
+ this->STARS_Platform_Bitwidth = 32;
+ SMP_msg("INFO: Platform bit width from uname() is 32\n");
+ }
+
+ if (this->STARS_Platform_Bitwidth <= 32)
+ this->SetReducedProcessingFlag(TotalCodeSize > STARS_CODESIZE_FULL_ANALYSIS_LIMIT_32BIT_PLATFORMS);
+ else
+ this->SetReducedProcessingFlag(TotalCodeSize > STARS_CODESIZE_FULL_ANALYSIS_LIMIT);
return;
}
--
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