* fuzzing fixes (Alexander)

* fix cross compilation CFLAGS and compiler choice
 * do not specify -bios option for tests/vm
 * miscellaneous fixes
 * preparation for pre-install tree in the build directory (Akihiko)
 -----BEGIN PGP SIGNATURE-----
 
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 QHJlZGhhdC5jb20ACgkQv/vSX3jHroO1KggArZDxqEOyTCvsu2H1Bf7j2J4Mfx2k
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 =Nyzq
 -----END PGP SIGNATURE-----

Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into staging

* fuzzing fixes (Alexander)
* fix cross compilation CFLAGS and compiler choice
* do not specify -bios option for tests/vm
* miscellaneous fixes
* preparation for pre-install tree in the build directory (Akihiko)

# gpg: Signature made Tue 12 Jul 2022 13:47:19 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream' of https://gitlab.com/bonzini/qemu:
  meson: place default firmware path under .../share
  qga: Relocate a path emitted in the help text
  build: Do not depend on pc-bios for config-host.mak
  accel: kvm: Fix memory leak in find_stats_descriptors
  audio/dbus: fix building
  fuzz: only use generic-fuzz targets on oss-fuzz
  build: improve -fsanitize-coverage-allowlist check
  build: try both native and cross compilers
  configure: pass whole target name to probe_target_compiler
  tests/tcg: compile system emulation tests as freestanding
  configure: write EXTRA_CFLAGS for all sub-Makefiles
  configure: allow more host/target combos to use the host compiler
  configure, pc-bios/vof: pass cross CFLAGS correctly
  configure, pc-bios/s390-ccw: pass cross CFLAGS correctly
  configure, pc-bios/optionrom: pass cross CFLAGS correctly
  pc-bios/optionrom: use -m16 unconditionally
  scsi/lsi53c895a: fix use-after-free in lsi_do_msgout (CVE-2022-0216)
  tests/vm: do not specify -bios option

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	pc-bios/s390-ccw/netboot.mak

Makefile

@@ -87,7 +87,7 @@ x := $(shell rm -rf meson-private meson-info meson-logs)
 endif
 
 # 1. ensure config-host.mak is up-to-date
-config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/scripts/meson-buildoptions.sh $(SRC_PATH)/pc-bios $(SRC_PATH)/VERSION
+config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/scripts/meson-buildoptions.sh $(SRC_PATH)/VERSION
 	@echo config-host.mak is out-of-date, running configure
 	@if test -f meson-private/coredata.dat; then \
 	  ./config.status --skip-meson; \

accel/kvm/kvm-all.c

@@ -3891,6 +3891,7 @@ static StatsDescriptors *find_stats_descriptors(StatsTarget target, int stats_fd
         error_setg(errp, "KVM stats: failed to read stats header: "
                    "expected %zu actual %zu",
                    sizeof(*kvm_stats_header), ret);
+        g_free(descriptors);
         return NULL;
     }
     size_desc = sizeof(*kvm_stats_desc) + kvm_stats_header->name_size;

audio/meson.build

@@ -28,7 +28,7 @@ endforeach
 
 if dbus_display
     module_ss = ss.source_set()
-    module_ss.add(when: [gio, pixman, opengl, 'CONFIG_GIO'], if_true: files('dbusaudio.c'))
+    module_ss.add(when: gio, if_true: files('dbusaudio.c'))
     audio_modules += {'dbus': module_ss}
 endif
 

configure

@@ -1858,7 +1858,7 @@ fi
 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
 : ${cross_cc_cflags_hexagon="-mv67 -O2 -static"}
 : ${cross_cc_cflags_i386="-m32"}
-: ${cross_cc_cflags_ppc="-m32"}
+: ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
@@ -1868,6 +1868,7 @@ fi
 : ${cross_cc_cflags_x86_64="-m64"}
 
 compute_target_variable() {
+  eval "$2="
   if eval test -n "\"\${cross_prefix_$1}\""; then
     if eval has "\"\${cross_prefix_$1}\$3\""; then
       eval "$2=\"\${cross_prefix_$1}\$3\""
@@ -1875,8 +1876,20 @@ compute_target_variable() {
   fi
 }
 
+# probe_target_compiler TARGET
+#
+# Look for a compiler for the given target, either native or cross.
+# Set variables target_* if a compiler is found, and container_cross_*
+# if a Docker-based cross-compiler image is known for the target.
+# Set got_cross_cc to yes/no depending on whether a non-container-based
+# compiler was found.
+#
+# If TARGET is a user-mode emulation target, also set build_static to
+# "y" if static linking is possible.
+#
 probe_target_compiler() {
   # reset all output variables
+  got_cross_cc=no
   container_image=
   container_hosts=
   container_cross_cc=
@@ -1887,16 +1900,9 @@ probe_target_compiler() {
   container_cross_objcopy=
   container_cross_ranlib=
   container_cross_strip=
-  target_cc=
-  target_ar=
-  target_as=
-  target_ld=
-  target_nm=
-  target_objcopy=
-  target_ranlib=
-  target_strip=
 
-  case $1 in
+  target_arch=${1%%-*}
+  case $target_arch in
     aarch64) container_hosts="x86_64 aarch64" ;;
     alpha) container_hosts=x86_64 ;;
     arm) container_hosts="x86_64 aarch64" ;;
@@ -1925,7 +1931,7 @@ probe_target_compiler() {
   for host in $container_hosts; do
     test "$container" != no || continue
     test "$host" = "$cpu" || continue
-    case $1 in
+    case $target_arch in
       aarch64)
         # We don't have any bigendian build tools so we only use this for AArch64
         container_image=debian-arm64-cross
@@ -2041,54 +2047,116 @@ probe_target_compiler() {
     : ${container_cross_strip:=${container_cross_prefix}strip}
   done
 
-  eval "target_cflags=\${cross_cc_cflags_$1}"
+  local t try
-  if eval test -n "\"\${cross_cc_$1}\""; then
+  try=cross
-    if eval has "\"\${cross_cc_$1}\""; then
+  case "$target_arch:$cpu" in
-      eval "target_cc=\"\${cross_cc_$1}\""
+    aarch64_be:aarch64 | \
+    armeb:arm | \
+    i386:x86_64 | \
+    mips*:mips64 | \
+    ppc*:ppc64 | \
+    sparc:sparc64 | \
+    "$cpu:$cpu")
+      try='native cross' ;;
+  esac
+  eval "target_cflags=\${cross_cc_cflags_$target_arch}"
+  for t in $try; do
+    case $t in
+    native)
+      target_cc=$cc
+      target_ccas=$ccas
+      target_ar=$ar
+      target_as=$as
+      target_ld=$ld
+      target_nm=$nm
+      target_objcopy=$objcopy
+      target_ranlib=$ranlib
+      target_strip=$strip
+      ;;
+    cross)
+      target_cc=
+      if eval test -n "\"\${cross_cc_$target_arch}\""; then
+        if eval has "\"\${cross_cc_$target_arch}\""; then
+          eval "target_cc=\"\${cross_cc_$target_arch}\""
         fi
       else
-    compute_target_variable $1 target_cc gcc
+        compute_target_variable $target_arch target_cc gcc
       fi
       target_ccas=$target_cc
-  compute_target_variable $1 target_ar ar
+      compute_target_variable $target_arch target_ar ar
-  compute_target_variable $1 target_as as
+      compute_target_variable $target_arch target_as as
-  compute_target_variable $1 target_ld ld
+      compute_target_variable $target_arch target_ld ld
-  compute_target_variable $1 target_nm nm
+      compute_target_variable $target_arch target_nm nm
-  compute_target_variable $1 target_objcopy objcopy
+      compute_target_variable $target_arch target_objcopy objcopy
-  compute_target_variable $1 target_ranlib ranlib
+      compute_target_variable $target_arch target_ranlib ranlib
-  compute_target_variable $1 target_strip strip
+      compute_target_variable $target_arch target_strip strip
-  if test "$1" = $cpu; then
+      ;;
-    : ${target_cc:=$cc}
+    esac
-    : ${target_ccas:=$ccas}
+
-    : ${target_as:=$as}
-    : ${target_ld:=$ld}
-    : ${target_ar:=$ar}
-    : ${target_as:=$as}
-    : ${target_ld:=$ld}
-    : ${target_nm:=$nm}
-    : ${target_objcopy:=$objcopy}
-    : ${target_ranlib:=$ranlib}
-    : ${target_strip:=$strip}
-  fi
     if test -n "$target_cc"; then
-    case $1 in
+      case $target_arch in
         i386|x86_64)
           if $target_cc --version | grep -qi "clang"; then
-          unset target_cc
+            continue
           fi
           ;;
       esac
+    elif test -n "$target_as" && test -n "$target_ld"; then
+      # Special handling for assembler only targets
+      case $target in
+        tricore-softmmu)
+          build_static=
+          got_cross_cc=yes
+          break
+          ;;
+        *)
+          continue
+          ;;
+      esac
+    else
+      continue
+    fi
+
+    write_c_skeleton
+    case $1 in
+      *-softmmu)
+        if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
+          do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
+          got_cross_cc=yes
+          break
+        fi
+        ;;
+      *)
+        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
+          build_static=y
+          got_cross_cc=yes
+          break
+        fi
+        if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
+          build_static=
+          got_cross_cc=yes
+          break
+        fi
+        ;;
+    esac
+  done
+  if test $got_cross_cc != yes; then
+    build_static=
+    target_cc=
+    target_ccas=
+    target_cflags=
+    target_ar=
+    target_as=
+    target_ld=
+    target_nm=
+    target_objcopy=
+    target_ranlib=
+    target_strip=
   fi
 }
 
-probe_target_compilers() {
-  for i; do
-    probe_target_compiler $i
-    test -n "$target_cc" && return 0
-  done
-}
-
 write_target_makefile() {
+  echo "EXTRA_CFLAGS=$target_cflags"
   if test -n "$target_cc"; then
     echo "CC=$target_cc"
     echo "CCAS=$target_ccas"
@@ -2117,6 +2185,7 @@ write_target_makefile() {
 }
 
 write_container_target_makefile() {
+  echo "EXTRA_CFLAGS=$target_cflags"
   if test -n "$container_cross_cc"; then
     echo "CC=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
     echo "CCAS=\$(DOCKER_SCRIPT) cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
@@ -2238,7 +2307,7 @@ done
 
 # Mac OS X ships with a broken assembler
 roms=
-probe_target_compilers i386 x86_64
+probe_target_compiler i386-softmmu
 if test -n "$target_cc" &&
         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
@@ -2261,7 +2330,7 @@ if test -n "$target_cc" &&
     fi
 fi
 
-probe_target_compilers ppc ppc64
+probe_target_compiler ppc-softmmu
 if test -n "$target_cc" && test "$softmmu" = yes; then
     roms="$roms pc-bios/vof"
     config_mak=pc-bios/vof/config.mak
@@ -2272,7 +2341,7 @@ fi
 
 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
 # (which is the lowest architecture level that Clang supports)
-probe_target_compiler s390x
+probe_target_compiler s390x-softmmu
 if test -n "$target_cc" && test "$softmmu" = yes; then
   write_c_skeleton
   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
@@ -2485,7 +2554,6 @@ tcg_tests_targets=
 for target in $target_list; do
   arch=${target%%-*}
 
-  probe_target_compiler ${arch}
   config_target_mak=tests/tcg/config-$target.mak
 
   echo "# Automatically generated by configure - do not modify" > $config_target_mak
@@ -2504,29 +2572,7 @@ for target in $target_list; do
       ;;
   esac
 
-  got_cross_cc=no
+  probe_target_compiler $target
-  unset build_static
-
-  if test -n "$target_cc"; then
-      write_c_skeleton
-      if ! do_compiler "$target_cc" $target_cflags \
-           -o $TMPE $TMPC -static ; then
-          # For host systems we might get away with building without -static
-          if do_compiler "$target_cc" $target_cflags \
-                         -o $TMPE $TMPC ; then
-              got_cross_cc=yes
-          fi
-      else
-          got_cross_cc=yes
-          build_static=y
-      fi
-  elif test -n "$target_as" && test -n "$target_ld"; then
-      # Special handling for assembler only tests
-      case $target in
-          tricore-softmmu) got_cross_cc=yes ;;
-      esac
-  fi
-
   if test $got_cross_cc = yes; then
       # Test for compiler features for optional tests. We only do this
       # for cross compilers because ensuring the docker containers based
@@ -2600,7 +2646,6 @@ for target in $target_list; do
   if test $got_cross_cc = yes; then
       mkdir -p tests/tcg/$target
       echo "QEMU=$PWD/$qemu" >> $config_target_mak
-      echo "EXTRA_CFLAGS=$target_cflags" >> $config_target_mak
       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> $makefile
       tcg_tests_targets="$tcg_tests_targets $target"
   fi

hw/scsi/lsi53c895a.c

@@ -1028,8 +1028,9 @@ static void lsi_do_msgout(LSIState *s)
         case 0x0d:
             /* The ABORT TAG message clears the current I/O process only. */
             trace_lsi_do_msgout_abort(current_tag);
-            if (current_req) {
+            if (current_req && current_req->req) {
                 scsi_req_cancel(current_req->req);
+                current_req->req = NULL;
             }
             lsi_disconnect(s);
             break;

meson.build

@@ -212,7 +212,8 @@ if get_option('fuzzing')
 
   if cc.compiles('int main () { return 0; }',
                   name: '-fsanitize-coverage-allowlist=/dev/null',
-                 args: ['-fsanitize-coverage-allowlist=/dev/null'] )
+                 args: ['-fsanitize-coverage-allowlist=/dev/null',
+                        '-fsanitize-coverage=trace-pc'] )
     add_global_arguments('-fsanitize-coverage-allowlist=instrumentation-filter',
                          native: false, language: ['c', 'cpp', 'objc'])
   endif
@@ -1671,6 +1672,8 @@ dbus_display = get_option('dbus_display') \
            error_message: '-display dbus requires --enable-modules') \
   .require(gdbus_codegen.found(),
            error_message: '-display dbus requires gdbus-codegen') \
+  .require(opengl.found(),
+           error_message: '-display dbus requires epoxy/egl') \
   .allowed()
 
 have_virtfs = get_option('virtfs') \

meson_options.txt

@@ -6,7 +6,7 @@ option('qemu_suffix', type : 'string', value: 'qemu',
        description: 'Suffix for QEMU data/modules/config directories (can be empty)')
 option('docdir', type : 'string', value : 'share/doc',
        description: 'Base directory for documentation installation (can be empty)')
-option('qemu_firmwarepath', type : 'string', value : 'qemu-firmware',
+option('qemu_firmwarepath', type : 'string', value : 'share/qemu-firmware',
        description: 'search PATH for firmware files')
 option('pkgversion', type : 'string', value : '',
        description: 'use specified string as sub-version of the package')

pc-bios/optionrom/Makefile

@@ -11,7 +11,7 @@ CFLAGS = -O2 -g
 quiet-command = $(if $(V),$1,$(if $(2),@printf "  %-7s %s\n" $2 $3 && $1, @$1))
 cc-option = $(if $(shell $(CC) $1 -c -o /dev/null -xc /dev/null >/dev/null 2>&1 && echo OK), $1, $2)
 
-override CFLAGS += -march=i486 -Wall
+override CFLAGS += -march=i486 -Wall $(EXTRA_CFLAGS) -m16
 
 # If -fcf-protection is enabled in flags or compiler defaults that will
 # conflict with -march=i486
@@ -24,21 +24,8 @@ override CFLAGS += $(filter -W%, $(QEMU_CFLAGS))
 override CFLAGS += $(call cc-option, -fno-pie)
 override CFLAGS += -ffreestanding -I$(TOPSRC_DIR)/include
 override CFLAGS += $(call cc-option, -fno-stack-protector)
-override CFLAGS += $(call cc-option, -m16)
 override CFLAGS += $(call cc-option, -Wno-array-bounds)
 
-ifeq ($(filter -m16, $(CFLAGS)),)
-# Attempt to work around compilers that lack -m16 (GCC <= 4.8, clang <= ??)
-# On GCC we add -fno-toplevel-reorder to keep the order of asm blocks with
-# respect to the rest of the code.  clang does not have -fno-toplevel-reorder,
-# but it places all asm blocks at the beginning and we're relying on it for
-# the option ROM header.  So just force clang not to use the integrated
-# assembler, which doesn't support .code16gcc.
-override CFLAGS += $(call cc-option, -fno-toplevel-reorder)
-override CFLAGS += $(call cc-option, -no-integrated-as)
-override CFLAGS += -m32 -include $(SRC_DIR)/code16gcc.h
-endif
-
 Wa = -Wa,
 override ASFLAGS += -32
 override CFLAGS += $(call cc-option, $(Wa)-32)

pc-bios/optionrom/code16gcc.h

@@ -1,3 +0,0 @@
-asm(
-".code16gcc\n"
-);

pc-bios/s390-ccw/Makefile

@@ -18,11 +18,11 @@ $(call set-vpath, $(SRC_PATH))
 QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d
 
 %.o: %.c
-	$(call quiet-command,$(CC) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
+	$(call quiet-command,$(CC) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
 	       -c -o $@ $<,"CC","$(TARGET_DIR)$@")
 
 %.o: %.S
-	$(call quiet-command,$(CCAS) $(QEMU_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
+	$(call quiet-command,$(CCAS) $(EXTRA_CFLAGS) $(QEMU_DGFLAGS) $(CFLAGS) \
 	       -c -o $@ $<,"CCAS","$(TARGET_DIR)$@")
 
 .PHONY : all clean build-all
@@ -30,14 +30,14 @@ QEMU_DGFLAGS = -MMD -MP -MT $@ -MF $(@D)/$(*F).d
 OBJECTS = start.o main.o bootmap.o jump2ipl.o sclp.o menu.o \
 	  virtio.o virtio-scsi.o virtio-blkdev.o libc.o cio.o dasd-ipl.o
 
-QEMU_CFLAGS := -Wall $(filter -W%, $(QEMU_CFLAGS))
+EXTRA_CFLAGS := $(EXTRA_CFLAGS) -Wall
-QEMU_CFLAGS += $(call cc-option,-Werror $(QEMU_CFLAGS),-Wno-stringop-overflow)
+EXTRA_CFLAGS += $(call cc-option,-Werror $(EXTRA_CFLAGS),-Wno-stringop-overflow)
-QEMU_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
+EXTRA_CFLAGS += -ffreestanding -fno-delete-null-pointer-checks -fno-common -fPIE
-QEMU_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
+EXTRA_CFLAGS += -fwrapv -fno-strict-aliasing -fno-asynchronous-unwind-tables
-QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS), -fno-stack-protector)
+EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS), -fno-stack-protector)
-QEMU_CFLAGS += -msoft-float
+EXTRA_CFLAGS += -msoft-float
-QEMU_CFLAGS += $(call cc-option, $(QEMU_CFLAGS),-march=z900,-march=z10)
+EXTRA_CFLAGS += $(call cc-option, $(EXTRA_CFLAGS),-march=z900,-march=z10)
-QEMU_CFLAGS += -std=gnu99
+EXTRA_CFLAGS += -std=gnu99
 LDFLAGS += -Wl,-pie -nostdlib
 
 build-all: s390-ccw.img s390-netboot.img

pc-bios/s390-ccw/netboot.mak

@@ -8,7 +8,7 @@ LIBNET_INC := -I$(SLOF_DIR)/lib/libnet
 
 NETLDFLAGS := $(LDFLAGS) -Wl,-Ttext=0x7800000
 
-$(NETOBJS): QEMU_CFLAGS += $(LIBC_INC) $(LIBNET_INC)
+$(NETOBJS): EXTRA_CFLAGS += $(LIBC_INC) $(LIBNET_INC)
 
 s390-netboot.elf: $(NETOBJS) libnet.a libc.a
 	$(call quiet-command,$(CC) $(NETLDFLAGS) -o $@ $^,"BUILD","$(TARGET_DIR)$@")
@@ -21,7 +21,7 @@ NO_GNU_WARN := $(call cc-option,-Werror $(QEMU_CFLAGS),-Wno-gnu)
 
 # libc files:
 
-LIBC_CFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \
+LIBC_CFLAGS = $(EXTRA_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \
 	      -MMD -MP -MT $@ -MF $(@:%.o=%.d)
 
 CTYPE_OBJS = isdigit.o isxdigit.o toupper.o
@@ -55,7 +55,7 @@ libc.a: $(LIBCOBJS)
 
 LIBNETOBJS := args.o dhcp.o dns.o icmpv6.o ipv6.o tcp.o udp.o bootp.o \
 	      dhcpv6.o ethernet.o ipv4.o ndp.o tftp.o pxelinux.o
-LIBNETCFLAGS = $(QEMU_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \
+LIBNETCFLAGS = $(EXTRA_CFLAGS) $(CFLAGS) $(NO_GNU_WARN) $(LIBC_INC) $(LIBNET_INC) \
 	       -DDHCPARCH=0x1F -MMD -MP -MT $@ -MF $(@:%.o=%.d)
 
 %.o : $(SLOF_DIR)/lib/libnet/%.c

pc-bios/vof/Makefile

@@ -2,15 +2,13 @@ include config.mak
 VPATH=$(SRC_DIR)
 all: vof.bin
 
-CC ?= $(CROSS)gcc
+EXTRA_CFLAGS += -mcpu=power4
-LD ?= $(CROSS)ld
-OBJCOPY ?= $(CROSS)objcopy
 
 %.o: %.S
-	$(CC) -m32 -mbig-endian -mcpu=power4 -c -o $@ $<
+	$(CC) $(EXTRA_CFLAGS) -c -o $@ $<
 
 %.o: %.c
-	$(CC) -m32 -mbig-endian -mcpu=power4 -c -fno-stack-protector -o $@ $<
+	$(CC) $(EXTRA_CFLAGS) -c -fno-stack-protector -o $@ $<
 
 vof.elf: entry.o main.o ci.o bootmem.o libc.o
 	$(LD) -nostdlib -e_start -T$(SRC_DIR)/vof.lds -EB -o $@ $^

qga/main.c

@@ -223,6 +223,10 @@ void reopen_fd_to_null(int fd)
 
 static void usage(const char *cmd)
 {
+#ifdef CONFIG_FSFREEZE
+    g_autofree char *fsfreeze_hook = get_relocated_path(QGA_FSFREEZE_HOOK_DEFAULT);
+#endif
+
     printf(
 "Usage: %s [-m <method> -p <path>] [<options>]\n"
 "QEMU Guest Agent " QEMU_FULL_VERSION "\n"
@@ -270,7 +274,7 @@ QEMU_HELP_BOTTOM "\n"
     , cmd, QGA_VIRTIO_PATH_DEFAULT, QGA_SERIAL_PATH_DEFAULT,
     dfl_pathnames.pidfile,
 #ifdef CONFIG_FSFREEZE
-    QGA_FSFREEZE_HOOK_DEFAULT,
+    fsfreeze_hook,
 #endif
     dfl_pathnames.state_dir);
 }

scripts/meson-buildoptions.sh

@@ -42,7 +42,7 @@ meson_options_help() {
   printf "%s\n" '  --enable-trace-backends=CHOICES'
   printf "%s\n" '                           Set available tracing backends [log] (choices:'
   printf "%s\n" '                           dtrace/ftrace/log/nop/simple/syslog/ust)'
-  printf "%s\n" '  --firmwarepath=VALUE     search PATH for firmware files [qemu-firmware]'
+  printf "%s\n" '  --firmwarepath=VALUE     search PATH for firmware files [share/qemu-firmware]'
   printf "%s\n" '  --iasl=VALUE             Path to ACPI disassembler'
   printf "%s\n" '  --includedir=VALUE       Header file directory [include]'
   printf "%s\n" '  --interp-prefix=VALUE    where to find shared libraries etc., use %M for'

scripts/oss-fuzz/build.sh

@@ -1,4 +1,4 @@
-#!/bin/sh -e
+#!/bin/bash -e
 #
 # OSS-Fuzz build script. See:
 # https://google.github.io/oss-fuzz/getting-started/new-project-guide/#buildsh
@@ -105,7 +105,7 @@ do
     # to be configured. We have some generic-fuzz-{pc-q35, floppy, ...} targets
     # that are thin wrappers around this target that set the required
     # environment variables according to predefined configs.
-    if [ "$target" != "generic-fuzz" ]; then
+    if [[ $target == "generic-fuzz-"* ]]; then
         ln  $base_copy \
             "$DEST_DIR/qemu-fuzz-i386-target-$target"
     fi

tests/tcg/Makefile.target

@@ -111,6 +111,7 @@ else
 # For softmmu targets we include a different Makefile fragement as the
 # build options for bare programs are usually pretty different. They
 # are expected to provide their own build recipes.
+EXTRA_CFLAGS += -ffreestanding
 -include $(SRC_PATH)/tests/tcg/minilib/Makefile.target
 -include $(SRC_PATH)/tests/tcg/multiarch/system/Makefile.softmmu-target
 -include $(SRC_PATH)/tests/tcg/$(TARGET_NAME)/Makefile.softmmu-target

tests/tcg/aarch64/system/pauth-3.c

@@ -1,4 +1,4 @@
-#include <inttypes.h>
+#include <stdint.h>
 #include <minilib.h>
 
 int main()

tests/tcg/aarch64/system/semiconsole.c

@@ -6,7 +6,7 @@
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
-#include <inttypes.h>
+#include <stdint.h>
 #include <minilib.h>
 
 #define SYS_READC 0x7

tests/tcg/aarch64/system/semiheap.c

@@ -6,7 +6,7 @@
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
-#include <inttypes.h>
+#include <stdint.h>
 #include <stddef.h>
 #include <minilib.h>
 

tests/tcg/multiarch/system/memory.c

@@ -12,7 +12,7 @@
  *   - sign extension when loading
  */
 
-#include <inttypes.h>
+#include <stdint.h>
 #include <stdbool.h>
 #include <minilib.h>
 

tests/vm/fedora

@@ -79,7 +79,6 @@ class FedoraVM(basevm.BaseVM):
         self.exec_qemu_img("create", "-f", "qcow2", img_tmp, self.size)
         self.print_step("Booting installer")
         self.boot(img_tmp, extra_args = [
-            "-bios", "pc-bios/bios-256k.bin",
             "-machine", "graphics=off",
             "-device", "VGA",
             "-cdrom", iso

tests/vm/freebsd

@@ -95,7 +95,6 @@ class FreeBSDVM(basevm.BaseVM):
 
         self.print_step("Booting installer")
         self.boot(img_tmp, extra_args = [
-            "-bios", "pc-bios/bios-256k.bin",
             "-machine", "graphics=off",
             "-device", "VGA",
             "-cdrom", iso

tests/vm/netbsd

@@ -86,7 +86,6 @@ class NetBSDVM(basevm.BaseVM):
 
         self.print_step("Booting installer")
         self.boot(img_tmp, extra_args = [
-            "-bios", "pc-bios/bios-256k.bin",
             "-machine", "graphics=off",
             "-cdrom", iso
         ])

tests/vm/openbsd

@@ -82,7 +82,6 @@ class OpenBSDVM(basevm.BaseVM):
 
         self.print_step("Booting installer")
         self.boot(img_tmp, extra_args = [
-            "-bios", "pc-bios/bios-256k.bin",
             "-machine", "graphics=off",
             "-device", "VGA",
             "-cdrom", iso