mirror of https://github.com/xemu-project/xemu.git
-----BEGIN PGP SIGNATURE-----
iQEcBAABAgAGBQJZOEC7AAoJEJykq7OBq3PIs4wIAMWtKbkZQkgqpHnSt4ZzpjkQ 1lRLmM6HOqMO1SarK0PduSRafwgUD2q/24gk6UeqUbArZXK+7U3SnfsfEHkOqCdB +ELRPZ+/b77AEZzhCSZ7uHHvrISO5MtLW/z4Av8GB5KYARbO5aZgIyeg7Na29SDk vQoANktrtLgLHu0vZfSUTTmPMRJqcC/DMm/EukXapXVW+cEt23V+nohchFmw8VtF Uni17u26B7CJGZOGduD11CIIvQ9QX+acyDlknkCIqfwd3Xxle0Mu0S3IV4KH7zjn MIcF3hGQWeln5AZzQe998EC0Ko+pmPRooZaeUbrolp+KjK9OcRnNKr7O2jjvGkA= =9+yN -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging # gpg: Signature made Wed 07 Jun 2017 19:06:51 BST # gpg: using RSA key 0x9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha/tags/block-pull-request: configure: split c and cxx extra flags coroutine-lock: do not touch coroutine after another one has been entered .gdbinit: load QEMU sub-commands when gdb starts coccinelle: fix typo in comment oslib: strip trailing '\n' from error_setg() string argument Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
2a8469aaab
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@ -0,0 +1,8 @@
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# GDB may have ./.gdbinit loading disabled by default. In that case you can
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# follow the instructions it prints. They boil down to adding the following to
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# your home directory's ~/.gdbinit file:
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#
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# add-auto-load-safe-path /path/to/qemu/.gdbinit
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# Load QEMU-specific sub-commands and settings
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source scripts/qemu-gdb.py
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@ -91,7 +91,8 @@ update_cxxflags() {
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# Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
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# options which some versions of GCC's C++ compiler complain about
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# because they only make sense for C programs.
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QEMU_CXXFLAGS=
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QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS"
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for arg in $QEMU_CFLAGS; do
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case $arg in
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-Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
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@ -345,6 +346,9 @@ for opt do
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--extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
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EXTRA_CFLAGS="$optarg"
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;;
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--extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
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EXTRA_CXXFLAGS="$optarg"
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;;
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--extra-ldflags=*) LDFLAGS="$LDFLAGS $optarg"
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EXTRA_LDFLAGS="$optarg"
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;;
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@ -788,6 +792,8 @@ for opt do
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;;
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--extra-cflags=*)
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;;
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--extra-cxxflags=*)
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;;
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--extra-ldflags=*)
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;;
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--enable-debug-info)
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@ -1305,6 +1311,7 @@ Advanced options (experts only):
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--cxx=CXX use C++ compiler CXX [$cxx]
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--objcc=OBJCC use Objective-C compiler OBJCC [$objcc]
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--extra-cflags=CFLAGS append extra C compiler flags QEMU_CFLAGS
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--extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
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--extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
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--make=MAKE use specified make [$make]
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--install=INSTALL use specified install [$install]
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@ -1490,37 +1497,6 @@ if test "$bogus_os" = "yes"; then
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error_exit "Unrecognized host OS $targetos"
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fi
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# Check that the C++ compiler exists and works with the C compiler
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if has $cxx; then
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cat > $TMPC <<EOF
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int c_function(void);
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int main(void) { return c_function(); }
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EOF
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compile_object
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cat > $TMPCXX <<EOF
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extern "C" {
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int c_function(void);
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}
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int c_function(void) { return 42; }
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EOF
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update_cxxflags
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if do_cxx $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $LDFLAGS; then
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# C++ compiler $cxx works ok with C compiler $cc
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:
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else
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echo "C++ compiler $cxx does not work with C compiler $cc"
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echo "Disabling C++ specific optional code"
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cxx=
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fi
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else
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echo "No C++ compiler available; disabling C++ specific optional code"
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cxx=
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fi
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gcc_flags="-Wold-style-declaration -Wold-style-definition -Wtype-limits"
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gcc_flags="-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers $gcc_flags"
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gcc_flags="-Wno-missing-include-dirs -Wempty-body -Wnested-externs $gcc_flags"
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@ -5064,6 +5040,38 @@ EOF
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fi
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fi
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# Check that the C++ compiler exists and works with the C compiler.
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# All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
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if has $cxx; then
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cat > $TMPC <<EOF
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int c_function(void);
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int main(void) { return c_function(); }
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EOF
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compile_object
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cat > $TMPCXX <<EOF
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extern "C" {
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int c_function(void);
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}
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int c_function(void) { return 42; }
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EOF
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update_cxxflags
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if do_cxx $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $LDFLAGS; then
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# C++ compiler $cxx works ok with C compiler $cc
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:
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else
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echo "C++ compiler $cxx does not work with C compiler $cc"
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echo "Disabling C++ specific optional code"
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cxx=
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fi
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else
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echo "No C++ compiler available; disabling C++ specific optional code"
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cxx=
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fi
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echo_version() {
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if test "$1" = "yes" ; then
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echo "($2)"
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@ -5269,6 +5277,7 @@ if test "$mingw32" = "no" ; then
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fi
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echo "qemu_helperdir=$libexecdir" >> $config_host_mak
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echo "extra_cflags=$EXTRA_CFLAGS" >> $config_host_mak
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echo "extra_cxxflags=$EXTRA_CXXFLAGS" >> $config_host_mak
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echo "extra_ldflags=$EXTRA_LDFLAGS" >> $config_host_mak
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echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
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echo "libs_softmmu=$libs_softmmu" >> $config_host_mak
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@ -5911,6 +5920,7 @@ echo "WINDRES=$windres" >> $config_host_mak
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echo "CFLAGS=$CFLAGS" >> $config_host_mak
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echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
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echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
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echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
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echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
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if test "$sparse" = "yes" ; then
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echo "CC := REAL_CC=\"\$(CC)\" cgcc" >> $config_host_mak
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@ -6376,6 +6386,7 @@ FILES="$FILES pc-bios/spapr-rtas/Makefile"
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FILES="$FILES pc-bios/s390-ccw/Makefile"
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FILES="$FILES roms/seabios/Makefile roms/vgabios/Makefile"
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FILES="$FILES pc-bios/qemu-icon.bmp"
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FILES="$FILES .gdbinit scripts" # scripts needed by relative path in .gdbinit
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for bios_file in \
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$source_path/pc-bios/*.bin \
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$source_path/pc-bios/*.lid \
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@ -6,9 +6,9 @@ libvixl_OBJS = vixl/utils.o \
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# The -Wno-sign-compare is needed only for gcc 4.6, which complains about
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# some signed-unsigned equality comparisons which later gcc versions do not.
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$(addprefix $(obj)/,$(libvixl_OBJS)): QEMU_CFLAGS := -I$(SRC_PATH)/disas/libvixl $(QEMU_CFLAGS) -Wno-sign-compare
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$(addprefix $(obj)/,$(libvixl_OBJS)): QEMU_CXXFLAGS := -I$(SRC_PATH)/disas/libvixl $(QEMU_CXXFLAGS) -Wno-sign-compare
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# Ensure that C99 macros are defined regardless of the inclusion order of
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# headers in vixl. This is required at least on NetBSD.
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$(addprefix $(obj)/,$(libvixl_OBJS)): QEMU_CFLAGS += -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS -D__STDC_FORMAT_MACROS
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$(addprefix $(obj)/,$(libvixl_OBJS)): QEMU_CXXFLAGS += -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
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common-obj-$(CONFIG_ARM_A64_DIS) += $(libvixl_OBJS)
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@ -20,9 +20,6 @@ MAKEFLAGS += -rR
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%.mak:
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clean-target:
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# Flags for C++ compilation
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QEMU_CXXFLAGS = -D__STDC_LIMIT_MACROS $(filter-out -Wstrict-prototypes -Wmissing-prototypes -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wredundant-decls, $(QEMU_CFLAGS))
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# Flags for dependency generation
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QEMU_DGFLAGS += -MMD -MP -MT $@ -MF $(@D)/$(*F).d
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@ -1,4 +1,4 @@
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// replace 'R = X; return R;' with 'return R;'
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// replace 'R = X; return R;' with 'return X;'
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@@
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identifier VAR;
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expression E;
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@ -402,7 +402,7 @@ void os_mem_prealloc(int fd, char *area, size_t memory, int smp_cpus,
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/* touch pages simultaneously */
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if (touch_all_pages(area, hpagesize, numpages, smp_cpus)) {
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error_setg(errp, "os_mem_prealloc: Insufficient free host memory "
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"pages available to allocate guest RAM\n");
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"pages available to allocate guest RAM");
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}
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ret = sigaction(SIGBUS, &oldact, NULL);
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@ -77,10 +77,25 @@ void coroutine_fn qemu_co_queue_wait(CoQueue *queue, CoMutex *mutex)
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void qemu_co_queue_run_restart(Coroutine *co)
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{
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Coroutine *next;
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QSIMPLEQ_HEAD(, Coroutine) tmp_queue_wakeup =
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QSIMPLEQ_HEAD_INITIALIZER(tmp_queue_wakeup);
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trace_qemu_co_queue_run_restart(co);
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while ((next = QSIMPLEQ_FIRST(&co->co_queue_wakeup))) {
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QSIMPLEQ_REMOVE_HEAD(&co->co_queue_wakeup, co_queue_next);
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/* Because "co" has yielded, any coroutine that we wakeup can resume it.
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* If this happens and "co" terminates, co->co_queue_wakeup becomes
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* invalid memory. Therefore, use a temporary queue and do not touch
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* the "co" coroutine as soon as you enter another one.
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*
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* In its turn resumed "co" can pupulate "co_queue_wakeup" queue with
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* new coroutines to be woken up. The caller, who has resumed "co",
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* will be responsible for traversing the same queue, which may cause
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* a different wakeup order but not any missing wakeups.
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*/
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QSIMPLEQ_CONCAT(&tmp_queue_wakeup, &co->co_queue_wakeup);
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while ((next = QSIMPLEQ_FIRST(&tmp_queue_wakeup))) {
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QSIMPLEQ_REMOVE_HEAD(&tmp_queue_wakeup, co_queue_next);
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qemu_coroutine_enter(next);
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}
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}
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@ -126,6 +126,11 @@ void qemu_aio_coroutine_enter(AioContext *ctx, Coroutine *co)
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qemu_co_queue_run_restart(co);
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/* Beware, if ret == COROUTINE_YIELD and qemu_co_queue_run_restart()
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* has started any other coroutine, "co" might have been reentered
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* and even freed by now! So be careful and do not touch it.
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*/
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switch (ret) {
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case COROUTINE_YIELD:
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return;
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