Emulation/xemu
1
0
Fork 0
mirror of https://github.com/xemu-project/xemu.git synced 2025-04-02 11:11:48 -04:00
Code Issues Projects Releases Packages Wiki Activity

compiler: never omit assertions if using a static analysis tool

Browse source 
Assertions help both Coverity and the clang static analyzer avoid
false positives, but on the other hand both are confused when
the condition is compiled as (void)(x != FOO).  Always expand
assertion macros when using Coverity or clang, through a new
QEMU_STATIC_ANALYSIS preprocessor symbol.

This fixes a couple false positives in TCG.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2016-07-15 18:27:40 +02:00
parent 3cbeb52467
commit 8bff06a0bb
2 changed files with 4 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
include/qemu/compiler.h
View file

@ -3,6 +3,9 @@
#ifndef COMPILER_H
#define COMPILER_H
#if defined __clang_analyzer__ || defined __COVERITY__
#define QEMU_STATIC_ANALYSIS 1
#endif
/*----------------------------------------------------------------------------
| The macro QEMU_GNUC_PREREQ tests for minimum version of the GNU C compiler.

2
tcg/tcg.h
View file

@ -191,7 +191,7 @@ typedef uint64_t tcg_insn_unit;
#endif
#ifdef CONFIG_DEBUG_TCG
#if defined CONFIG_DEBUG_TCG || defined QEMU_STATIC_ANALYSIS
# define tcg_debug_assert(X) do { assert(X); } while (0)
#elif QEMU_GNUC_PREREQ(4, 5)
# define tcg_debug_assert(X) \