aboutsummaryrefslogtreecommitdiff
path: root/gcc/cp/vtable-class-hierarchy.cc
diff options
context:
space:
mode:
authorMartin Liska <mliska@suse.cz>2022-01-14 16:56:44 +0100
committerMartin Liska <mliska@suse.cz>2022-01-17 22:12:04 +0100
commit5c69acb32329d49e58c26fa41ae74229a52b9106 (patch)
treeddb05f9d73afb6f998457d2ac4b720e3b3b60483 /gcc/cp/vtable-class-hierarchy.cc
parent490e23032baaece71f2ec09fa1805064b150fbc2 (diff)
downloadgcc-5c69acb32329d49e58c26fa41ae74229a52b9106.zip
gcc-5c69acb32329d49e58c26fa41ae74229a52b9106.tar.gz
gcc-5c69acb32329d49e58c26fa41ae74229a52b9106.tar.bz2
Rename .c files to .cc files.
gcc/ada/ChangeLog: * adadecode.c: Moved to... * adadecode.cc: ...here. * affinity.c: Moved to... * affinity.cc: ...here. * argv-lynxos178-raven-cert.c: Moved to... * argv-lynxos178-raven-cert.cc: ...here. * argv.c: Moved to... * argv.cc: ...here. * aux-io.c: Moved to... * aux-io.cc: ...here. * cio.c: Moved to... * cio.cc: ...here. * cstreams.c: Moved to... * cstreams.cc: ...here. * env.c: Moved to... * env.cc: ...here. * exit.c: Moved to... * exit.cc: ...here. * expect.c: Moved to... * expect.cc: ...here. * final.c: Moved to... * final.cc: ...here. * gcc-interface/cuintp.c: Moved to... * gcc-interface/cuintp.cc: ...here. * gcc-interface/decl.c: Moved to... * gcc-interface/decl.cc: ...here. * gcc-interface/misc.c: Moved to... * gcc-interface/misc.cc: ...here. * gcc-interface/targtyps.c: Moved to... * gcc-interface/targtyps.cc: ...here. * gcc-interface/trans.c: Moved to... * gcc-interface/trans.cc: ...here. * gcc-interface/utils.c: Moved to... * gcc-interface/utils.cc: ...here. * gcc-interface/utils2.c: Moved to... * gcc-interface/utils2.cc: ...here. * init.c: Moved to... * init.cc: ...here. * initialize.c: Moved to... * initialize.cc: ...here. * libgnarl/thread.c: Moved to... * libgnarl/thread.cc: ...here. * link.c: Moved to... * link.cc: ...here. * locales.c: Moved to... * locales.cc: ...here. * mkdir.c: Moved to... * mkdir.cc: ...here. * raise.c: Moved to... * raise.cc: ...here. * rtfinal.c: Moved to... * rtfinal.cc: ...here. * rtinit.c: Moved to... * rtinit.cc: ...here. * seh_init.c: Moved to... * seh_init.cc: ...here. * sigtramp-armdroid.c: Moved to... * sigtramp-armdroid.cc: ...here. * sigtramp-ios.c: Moved to... * sigtramp-ios.cc: ...here. * sigtramp-qnx.c: Moved to... * sigtramp-qnx.cc: ...here. * sigtramp-vxworks.c: Moved to... * sigtramp-vxworks.cc: ...here. * socket.c: Moved to... * socket.cc: ...here. * tracebak.c: Moved to... * tracebak.cc: ...here. * version.c: Moved to... * version.cc: ...here. * vx_stack_info.c: Moved to... * vx_stack_info.cc: ...here. gcc/ChangeLog: * adjust-alignment.c: Moved to... * adjust-alignment.cc: ...here. * alias.c: Moved to... * alias.cc: ...here. * alloc-pool.c: Moved to... * alloc-pool.cc: ...here. * asan.c: Moved to... * asan.cc: ...here. * attribs.c: Moved to... * attribs.cc: ...here. * auto-inc-dec.c: Moved to... * auto-inc-dec.cc: ...here. * auto-profile.c: Moved to... * auto-profile.cc: ...here. * bb-reorder.c: Moved to... * bb-reorder.cc: ...here. * bitmap.c: Moved to... * bitmap.cc: ...here. * btfout.c: Moved to... * btfout.cc: ...here. * builtins.c: Moved to... * builtins.cc: ...here. * caller-save.c: Moved to... * caller-save.cc: ...here. * calls.c: Moved to... * calls.cc: ...here. * ccmp.c: Moved to... * ccmp.cc: ...here. * cfg.c: Moved to... * cfg.cc: ...here. * cfganal.c: Moved to... * cfganal.cc: ...here. * cfgbuild.c: Moved to... * cfgbuild.cc: ...here. * cfgcleanup.c: Moved to... * cfgcleanup.cc: ...here. * cfgexpand.c: Moved to... * cfgexpand.cc: ...here. * cfghooks.c: Moved to... * cfghooks.cc: ...here. * cfgloop.c: Moved to... * cfgloop.cc: ...here. * cfgloopanal.c: Moved to... * cfgloopanal.cc: ...here. * cfgloopmanip.c: Moved to... * cfgloopmanip.cc: ...here. * cfgrtl.c: Moved to... * cfgrtl.cc: ...here. * cgraph.c: Moved to... * cgraph.cc: ...here. * cgraphbuild.c: Moved to... * cgraphbuild.cc: ...here. * cgraphclones.c: Moved to... * cgraphclones.cc: ...here. * cgraphunit.c: Moved to... * cgraphunit.cc: ...here. * collect-utils.c: Moved to... * collect-utils.cc: ...here. * collect2-aix.c: Moved to... * collect2-aix.cc: ...here. * collect2.c: Moved to... * collect2.cc: ...here. * combine-stack-adj.c: Moved to... * combine-stack-adj.cc: ...here. * combine.c: Moved to... * combine.cc: ...here. * common/common-targhooks.c: Moved to... * common/common-targhooks.cc: ...here. * common/config/aarch64/aarch64-common.c: Moved to... * common/config/aarch64/aarch64-common.cc: ...here. * common/config/alpha/alpha-common.c: Moved to... * common/config/alpha/alpha-common.cc: ...here. * common/config/arc/arc-common.c: Moved to... * common/config/arc/arc-common.cc: ...here. * common/config/arm/arm-common.c: Moved to... * common/config/arm/arm-common.cc: ...here. * common/config/avr/avr-common.c: Moved to... * common/config/avr/avr-common.cc: ...here. * common/config/bfin/bfin-common.c: Moved to... * common/config/bfin/bfin-common.cc: ...here. * common/config/bpf/bpf-common.c: Moved to... * common/config/bpf/bpf-common.cc: ...here. * common/config/c6x/c6x-common.c: Moved to... * common/config/c6x/c6x-common.cc: ...here. * common/config/cr16/cr16-common.c: Moved to... * common/config/cr16/cr16-common.cc: ...here. * common/config/cris/cris-common.c: Moved to... * common/config/cris/cris-common.cc: ...here. * common/config/csky/csky-common.c: Moved to... * common/config/csky/csky-common.cc: ...here. * common/config/default-common.c: Moved to... * common/config/default-common.cc: ...here. * common/config/epiphany/epiphany-common.c: Moved to... * common/config/epiphany/epiphany-common.cc: ...here. * common/config/fr30/fr30-common.c: Moved to... * common/config/fr30/fr30-common.cc: ...here. * common/config/frv/frv-common.c: Moved to... * common/config/frv/frv-common.cc: ...here. * common/config/gcn/gcn-common.c: Moved to... * common/config/gcn/gcn-common.cc: ...here. * common/config/h8300/h8300-common.c: Moved to... * common/config/h8300/h8300-common.cc: ...here. * common/config/i386/i386-common.c: Moved to... * common/config/i386/i386-common.cc: ...here. * common/config/ia64/ia64-common.c: Moved to... * common/config/ia64/ia64-common.cc: ...here. * common/config/iq2000/iq2000-common.c: Moved to... * common/config/iq2000/iq2000-common.cc: ...here. * common/config/lm32/lm32-common.c: Moved to... * common/config/lm32/lm32-common.cc: ...here. * common/config/m32r/m32r-common.c: Moved to... * common/config/m32r/m32r-common.cc: ...here. * common/config/m68k/m68k-common.c: Moved to... * common/config/m68k/m68k-common.cc: ...here. * common/config/mcore/mcore-common.c: Moved to... * common/config/mcore/mcore-common.cc: ...here. * common/config/microblaze/microblaze-common.c: Moved to... * common/config/microblaze/microblaze-common.cc: ...here. * common/config/mips/mips-common.c: Moved to... * common/config/mips/mips-common.cc: ...here. * common/config/mmix/mmix-common.c: Moved to... * common/config/mmix/mmix-common.cc: ...here. * common/config/mn10300/mn10300-common.c: Moved to... * common/config/mn10300/mn10300-common.cc: ...here. * common/config/msp430/msp430-common.c: Moved to... * common/config/msp430/msp430-common.cc: ...here. * common/config/nds32/nds32-common.c: Moved to... * common/config/nds32/nds32-common.cc: ...here. * common/config/nios2/nios2-common.c: Moved to... * common/config/nios2/nios2-common.cc: ...here. * common/config/nvptx/nvptx-common.c: Moved to... * common/config/nvptx/nvptx-common.cc: ...here. * common/config/or1k/or1k-common.c: Moved to... * common/config/or1k/or1k-common.cc: ...here. * common/config/pa/pa-common.c: Moved to... * common/config/pa/pa-common.cc: ...here. * common/config/pdp11/pdp11-common.c: Moved to... * common/config/pdp11/pdp11-common.cc: ...here. * common/config/pru/pru-common.c: Moved to... * common/config/pru/pru-common.cc: ...here. * common/config/riscv/riscv-common.c: Moved to... * common/config/riscv/riscv-common.cc: ...here. * common/config/rs6000/rs6000-common.c: Moved to... * common/config/rs6000/rs6000-common.cc: ...here. * common/config/rx/rx-common.c: Moved to... * common/config/rx/rx-common.cc: ...here. * common/config/s390/s390-common.c: Moved to... * common/config/s390/s390-common.cc: ...here. * common/config/sh/sh-common.c: Moved to... * common/config/sh/sh-common.cc: ...here. * common/config/sparc/sparc-common.c: Moved to... * common/config/sparc/sparc-common.cc: ...here. * common/config/tilegx/tilegx-common.c: Moved to... * common/config/tilegx/tilegx-common.cc: ...here. * common/config/tilepro/tilepro-common.c: Moved to... * common/config/tilepro/tilepro-common.cc: ...here. * common/config/v850/v850-common.c: Moved to... * common/config/v850/v850-common.cc: ...here. * common/config/vax/vax-common.c: Moved to... * common/config/vax/vax-common.cc: ...here. * common/config/visium/visium-common.c: Moved to... * common/config/visium/visium-common.cc: ...here. * common/config/xstormy16/xstormy16-common.c: Moved to... * common/config/xstormy16/xstormy16-common.cc: ...here. * common/config/xtensa/xtensa-common.c: Moved to... * common/config/xtensa/xtensa-common.cc: ...here. * compare-elim.c: Moved to... * compare-elim.cc: ...here. * config/aarch64/aarch64-bti-insert.c: Moved to... * config/aarch64/aarch64-bti-insert.cc: ...here. * config/aarch64/aarch64-builtins.c: Moved to... * config/aarch64/aarch64-builtins.cc: ...here. * config/aarch64/aarch64-c.c: Moved to... * config/aarch64/aarch64-c.cc: ...here. * config/aarch64/aarch64-d.c: Moved to... * config/aarch64/aarch64-d.cc: ...here. * config/aarch64/aarch64.c: Moved to... * config/aarch64/aarch64.cc: ...here. * config/aarch64/cortex-a57-fma-steering.c: Moved to... * config/aarch64/cortex-a57-fma-steering.cc: ...here. * config/aarch64/driver-aarch64.c: Moved to... * config/aarch64/driver-aarch64.cc: ...here. * config/aarch64/falkor-tag-collision-avoidance.c: Moved to... * config/aarch64/falkor-tag-collision-avoidance.cc: ...here. * config/aarch64/host-aarch64-darwin.c: Moved to... * config/aarch64/host-aarch64-darwin.cc: ...here. * config/alpha/alpha.c: Moved to... * config/alpha/alpha.cc: ...here. * config/alpha/driver-alpha.c: Moved to... * config/alpha/driver-alpha.cc: ...here. * config/arc/arc-c.c: Moved to... * config/arc/arc-c.cc: ...here. * config/arc/arc.c: Moved to... * config/arc/arc.cc: ...here. * config/arc/driver-arc.c: Moved to... * config/arc/driver-arc.cc: ...here. * config/arm/aarch-common.c: Moved to... * config/arm/aarch-common.cc: ...here. * config/arm/arm-builtins.c: Moved to... * config/arm/arm-builtins.cc: ...here. * config/arm/arm-c.c: Moved to... * config/arm/arm-c.cc: ...here. * config/arm/arm-d.c: Moved to... * config/arm/arm-d.cc: ...here. * config/arm/arm.c: Moved to... * config/arm/arm.cc: ...here. * config/arm/driver-arm.c: Moved to... * config/arm/driver-arm.cc: ...here. * config/avr/avr-c.c: Moved to... * config/avr/avr-c.cc: ...here. * config/avr/avr-devices.c: Moved to... * config/avr/avr-devices.cc: ...here. * config/avr/avr-log.c: Moved to... * config/avr/avr-log.cc: ...here. * config/avr/avr.c: Moved to... * config/avr/avr.cc: ...here. * config/avr/driver-avr.c: Moved to... * config/avr/driver-avr.cc: ...here. * config/avr/gen-avr-mmcu-specs.c: Moved to... * config/avr/gen-avr-mmcu-specs.cc: ...here. * config/avr/gen-avr-mmcu-texi.c: Moved to... * config/avr/gen-avr-mmcu-texi.cc: ...here. * config/bfin/bfin.c: Moved to... * config/bfin/bfin.cc: ...here. * config/bpf/bpf.c: Moved to... * config/bpf/bpf.cc: ...here. * config/bpf/coreout.c: Moved to... * config/bpf/coreout.cc: ...here. * config/c6x/c6x.c: Moved to... * config/c6x/c6x.cc: ...here. * config/cr16/cr16.c: Moved to... * config/cr16/cr16.cc: ...here. * config/cris/cris.c: Moved to... * config/cris/cris.cc: ...here. * config/csky/csky.c: Moved to... * config/csky/csky.cc: ...here. * config/darwin-c.c: Moved to... * config/darwin-c.cc: ...here. * config/darwin-d.c: Moved to... * config/darwin-d.cc: ...here. * config/darwin-driver.c: Moved to... * config/darwin-driver.cc: ...here. * config/darwin-f.c: Moved to... * config/darwin-f.cc: ...here. * config/darwin.c: Moved to... * config/darwin.cc: ...here. * config/default-c.c: Moved to... * config/default-c.cc: ...here. * config/default-d.c: Moved to... * config/default-d.cc: ...here. * config/dragonfly-d.c: Moved to... * config/dragonfly-d.cc: ...here. * config/epiphany/epiphany.c: Moved to... * config/epiphany/epiphany.cc: ...here. * config/epiphany/mode-switch-use.c: Moved to... * config/epiphany/mode-switch-use.cc: ...here. * config/epiphany/resolve-sw-modes.c: Moved to... * config/epiphany/resolve-sw-modes.cc: ...here. * config/fr30/fr30.c: Moved to... * config/fr30/fr30.cc: ...here. * config/freebsd-d.c: Moved to... * config/freebsd-d.cc: ...here. * config/frv/frv.c: Moved to... * config/frv/frv.cc: ...here. * config/ft32/ft32.c: Moved to... * config/ft32/ft32.cc: ...here. * config/gcn/driver-gcn.c: Moved to... * config/gcn/driver-gcn.cc: ...here. * config/gcn/gcn-run.c: Moved to... * config/gcn/gcn-run.cc: ...here. * config/gcn/gcn-tree.c: Moved to... * config/gcn/gcn-tree.cc: ...here. * config/gcn/gcn.c: Moved to... * config/gcn/gcn.cc: ...here. * config/gcn/mkoffload.c: Moved to... * config/gcn/mkoffload.cc: ...here. * config/glibc-c.c: Moved to... * config/glibc-c.cc: ...here. * config/glibc-d.c: Moved to... * config/glibc-d.cc: ...here. * config/h8300/h8300.c: Moved to... * config/h8300/h8300.cc: ...here. * config/host-darwin.c: Moved to... * config/host-darwin.cc: ...here. * config/host-hpux.c: Moved to... * config/host-hpux.cc: ...here. * config/host-linux.c: Moved to... * config/host-linux.cc: ...here. * config/host-netbsd.c: Moved to... * config/host-netbsd.cc: ...here. * config/host-openbsd.c: Moved to... * config/host-openbsd.cc: ...here. * config/host-solaris.c: Moved to... * config/host-solaris.cc: ...here. * config/i386/djgpp.c: Moved to... * config/i386/djgpp.cc: ...here. * config/i386/driver-i386.c: Moved to... * config/i386/driver-i386.cc: ...here. * config/i386/driver-mingw32.c: Moved to... * config/i386/driver-mingw32.cc: ...here. * config/i386/gnu-property.c: Moved to... * config/i386/gnu-property.cc: ...here. * config/i386/host-cygwin.c: Moved to... * config/i386/host-cygwin.cc: ...here. * config/i386/host-i386-darwin.c: Moved to... * config/i386/host-i386-darwin.cc: ...here. * config/i386/host-mingw32.c: Moved to... * config/i386/host-mingw32.cc: ...here. * config/i386/i386-builtins.c: Moved to... * config/i386/i386-builtins.cc: ...here. * config/i386/i386-c.c: Moved to... * config/i386/i386-c.cc: ...here. * config/i386/i386-d.c: Moved to... * config/i386/i386-d.cc: ...here. * config/i386/i386-expand.c: Moved to... * config/i386/i386-expand.cc: ...here. * config/i386/i386-features.c: Moved to... * config/i386/i386-features.cc: ...here. * config/i386/i386-options.c: Moved to... * config/i386/i386-options.cc: ...here. * config/i386/i386.c: Moved to... * config/i386/i386.cc: ...here. * config/i386/intelmic-mkoffload.c: Moved to... * config/i386/intelmic-mkoffload.cc: ...here. * config/i386/msformat-c.c: Moved to... * config/i386/msformat-c.cc: ...here. * config/i386/winnt-cxx.c: Moved to... * config/i386/winnt-cxx.cc: ...here. * config/i386/winnt-d.c: Moved to... * config/i386/winnt-d.cc: ...here. * config/i386/winnt-stubs.c: Moved to... * config/i386/winnt-stubs.cc: ...here. * config/i386/winnt.c: Moved to... * config/i386/winnt.cc: ...here. * config/i386/x86-tune-sched-atom.c: Moved to... * config/i386/x86-tune-sched-atom.cc: ...here. * config/i386/x86-tune-sched-bd.c: Moved to... * config/i386/x86-tune-sched-bd.cc: ...here. * config/i386/x86-tune-sched-core.c: Moved to... * config/i386/x86-tune-sched-core.cc: ...here. * config/i386/x86-tune-sched.c: Moved to... * config/i386/x86-tune-sched.cc: ...here. * config/ia64/ia64-c.c: Moved to... * config/ia64/ia64-c.cc: ...here. * config/ia64/ia64.c: Moved to... * config/ia64/ia64.cc: ...here. * config/iq2000/iq2000.c: Moved to... * config/iq2000/iq2000.cc: ...here. * config/linux.c: Moved to... * config/linux.cc: ...here. * config/lm32/lm32.c: Moved to... * config/lm32/lm32.cc: ...here. * config/m32c/m32c-pragma.c: Moved to... * config/m32c/m32c-pragma.cc: ...here. * config/m32c/m32c.c: Moved to... * config/m32c/m32c.cc: ...here. * config/m32r/m32r.c: Moved to... * config/m32r/m32r.cc: ...here. * config/m68k/m68k.c: Moved to... * config/m68k/m68k.cc: ...here. * config/mcore/mcore.c: Moved to... * config/mcore/mcore.cc: ...here. * config/microblaze/microblaze-c.c: Moved to... * config/microblaze/microblaze-c.cc: ...here. * config/microblaze/microblaze.c: Moved to... * config/microblaze/microblaze.cc: ...here. * config/mips/driver-native.c: Moved to... * config/mips/driver-native.cc: ...here. * config/mips/frame-header-opt.c: Moved to... * config/mips/frame-header-opt.cc: ...here. * config/mips/mips-d.c: Moved to... * config/mips/mips-d.cc: ...here. * config/mips/mips.c: Moved to... * config/mips/mips.cc: ...here. * config/mmix/mmix.c: Moved to... * config/mmix/mmix.cc: ...here. * config/mn10300/mn10300.c: Moved to... * config/mn10300/mn10300.cc: ...here. * config/moxie/moxie.c: Moved to... * config/moxie/moxie.cc: ...here. * config/msp430/driver-msp430.c: Moved to... * config/msp430/driver-msp430.cc: ...here. * config/msp430/msp430-c.c: Moved to... * config/msp430/msp430-c.cc: ...here. * config/msp430/msp430-devices.c: Moved to... * config/msp430/msp430-devices.cc: ...here. * config/msp430/msp430.c: Moved to... * config/msp430/msp430.cc: ...here. * config/nds32/nds32-cost.c: Moved to... * config/nds32/nds32-cost.cc: ...here. * config/nds32/nds32-fp-as-gp.c: Moved to... * config/nds32/nds32-fp-as-gp.cc: ...here. * config/nds32/nds32-intrinsic.c: Moved to... * config/nds32/nds32-intrinsic.cc: ...here. * config/nds32/nds32-isr.c: Moved to... * config/nds32/nds32-isr.cc: ...here. * config/nds32/nds32-md-auxiliary.c: Moved to... * config/nds32/nds32-md-auxiliary.cc: ...here. * config/nds32/nds32-memory-manipulation.c: Moved to... * config/nds32/nds32-memory-manipulation.cc: ...here. * config/nds32/nds32-pipelines-auxiliary.c: Moved to... * config/nds32/nds32-pipelines-auxiliary.cc: ...here. * config/nds32/nds32-predicates.c: Moved to... * config/nds32/nds32-predicates.cc: ...here. * config/nds32/nds32-relax-opt.c: Moved to... * config/nds32/nds32-relax-opt.cc: ...here. * config/nds32/nds32-utils.c: Moved to... * config/nds32/nds32-utils.cc: ...here. * config/nds32/nds32.c: Moved to... * config/nds32/nds32.cc: ...here. * config/netbsd-d.c: Moved to... * config/netbsd-d.cc: ...here. * config/netbsd.c: Moved to... * config/netbsd.cc: ...here. * config/nios2/nios2.c: Moved to... * config/nios2/nios2.cc: ...here. * config/nvptx/mkoffload.c: Moved to... * config/nvptx/mkoffload.cc: ...here. * config/nvptx/nvptx-c.c: Moved to... * config/nvptx/nvptx-c.cc: ...here. * config/nvptx/nvptx.c: Moved to... * config/nvptx/nvptx.cc: ...here. * config/openbsd-d.c: Moved to... * config/openbsd-d.cc: ...here. * config/or1k/or1k.c: Moved to... * config/or1k/or1k.cc: ...here. * config/pa/pa-d.c: Moved to... * config/pa/pa-d.cc: ...here. * config/pa/pa.c: Moved to... * config/pa/pa.cc: ...here. * config/pdp11/pdp11.c: Moved to... * config/pdp11/pdp11.cc: ...here. * config/pru/pru-passes.c: Moved to... * config/pru/pru-passes.cc: ...here. * config/pru/pru-pragma.c: Moved to... * config/pru/pru-pragma.cc: ...here. * config/pru/pru.c: Moved to... * config/pru/pru.cc: ...here. * config/riscv/riscv-builtins.c: Moved to... * config/riscv/riscv-builtins.cc: ...here. * config/riscv/riscv-c.c: Moved to... * config/riscv/riscv-c.cc: ...here. * config/riscv/riscv-d.c: Moved to... * config/riscv/riscv-d.cc: ...here. * config/riscv/riscv-shorten-memrefs.c: Moved to... * config/riscv/riscv-shorten-memrefs.cc: ...here. * config/riscv/riscv-sr.c: Moved to... * config/riscv/riscv-sr.cc: ...here. * config/riscv/riscv.c: Moved to... * config/riscv/riscv.cc: ...here. * config/rl78/rl78-c.c: Moved to... * config/rl78/rl78-c.cc: ...here. * config/rl78/rl78.c: Moved to... * config/rl78/rl78.cc: ...here. * config/rs6000/driver-rs6000.c: Moved to... * config/rs6000/driver-rs6000.cc: ...here. * config/rs6000/host-darwin.c: Moved to... * config/rs6000/host-darwin.cc: ...here. * config/rs6000/host-ppc64-darwin.c: Moved to... * config/rs6000/host-ppc64-darwin.cc: ...here. * config/rs6000/rbtree.c: Moved to... * config/rs6000/rbtree.cc: ...here. * config/rs6000/rs6000-c.c: Moved to... * config/rs6000/rs6000-c.cc: ...here. * config/rs6000/rs6000-call.c: Moved to... * config/rs6000/rs6000-call.cc: ...here. * config/rs6000/rs6000-d.c: Moved to... * config/rs6000/rs6000-d.cc: ...here. * config/rs6000/rs6000-gen-builtins.c: Moved to... * config/rs6000/rs6000-gen-builtins.cc: ...here. * config/rs6000/rs6000-linux.c: Moved to... * config/rs6000/rs6000-linux.cc: ...here. * config/rs6000/rs6000-logue.c: Moved to... * config/rs6000/rs6000-logue.cc: ...here. * config/rs6000/rs6000-p8swap.c: Moved to... * config/rs6000/rs6000-p8swap.cc: ...here. * config/rs6000/rs6000-pcrel-opt.c: Moved to... * config/rs6000/rs6000-pcrel-opt.cc: ...here. * config/rs6000/rs6000-string.c: Moved to... * config/rs6000/rs6000-string.cc: ...here. * config/rs6000/rs6000.c: Moved to... * config/rs6000/rs6000.cc: ...here. * config/rx/rx.c: Moved to... * config/rx/rx.cc: ...here. * config/s390/driver-native.c: Moved to... * config/s390/driver-native.cc: ...here. * config/s390/s390-c.c: Moved to... * config/s390/s390-c.cc: ...here. * config/s390/s390-d.c: Moved to... * config/s390/s390-d.cc: ...here. * config/s390/s390.c: Moved to... * config/s390/s390.cc: ...here. * config/sh/divtab-sh4-300.c: Moved to... * config/sh/divtab-sh4-300.cc: ...here. * config/sh/divtab-sh4.c: Moved to... * config/sh/divtab-sh4.cc: ...here. * config/sh/divtab.c: Moved to... * config/sh/divtab.cc: ...here. * config/sh/sh-c.c: Moved to... * config/sh/sh-c.cc: ...here. * config/sh/sh.c: Moved to... * config/sh/sh.cc: ...here. * config/sol2-c.c: Moved to... * config/sol2-c.cc: ...here. * config/sol2-cxx.c: Moved to... * config/sol2-cxx.cc: ...here. * config/sol2-d.c: Moved to... * config/sol2-d.cc: ...here. * config/sol2-stubs.c: Moved to... * config/sol2-stubs.cc: ...here. * config/sol2.c: Moved to... * config/sol2.cc: ...here. * config/sparc/driver-sparc.c: Moved to... * config/sparc/driver-sparc.cc: ...here. * config/sparc/sparc-c.c: Moved to... * config/sparc/sparc-c.cc: ...here. * config/sparc/sparc-d.c: Moved to... * config/sparc/sparc-d.cc: ...here. * config/sparc/sparc.c: Moved to... * config/sparc/sparc.cc: ...here. * config/stormy16/stormy16.c: Moved to... * config/stormy16/stormy16.cc: ...here. * config/tilegx/mul-tables.c: Moved to... * config/tilegx/mul-tables.cc: ...here. * config/tilegx/tilegx-c.c: Moved to... * config/tilegx/tilegx-c.cc: ...here. * config/tilegx/tilegx.c: Moved to... * config/tilegx/tilegx.cc: ...here. * config/tilepro/mul-tables.c: Moved to... * config/tilepro/mul-tables.cc: ...here. * config/tilepro/tilepro-c.c: Moved to... * config/tilepro/tilepro-c.cc: ...here. * config/tilepro/tilepro.c: Moved to... * config/tilepro/tilepro.cc: ...here. * config/v850/v850-c.c: Moved to... * config/v850/v850-c.cc: ...here. * config/v850/v850.c: Moved to... * config/v850/v850.cc: ...here. * config/vax/vax.c: Moved to... * config/vax/vax.cc: ...here. * config/visium/visium.c: Moved to... * config/visium/visium.cc: ...here. * config/vms/vms-c.c: Moved to... * config/vms/vms-c.cc: ...here. * config/vms/vms-f.c: Moved to... * config/vms/vms-f.cc: ...here. * config/vms/vms.c: Moved to... * config/vms/vms.cc: ...here. * config/vxworks-c.c: Moved to... * config/vxworks-c.cc: ...here. * config/vxworks.c: Moved to... * config/vxworks.cc: ...here. * config/winnt-c.c: Moved to... * config/winnt-c.cc: ...here. * config/xtensa/xtensa.c: Moved to... * config/xtensa/xtensa.cc: ...here. * context.c: Moved to... * context.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * coverage.c: Moved to... * coverage.cc: ...here. * cppbuiltin.c: Moved to... * cppbuiltin.cc: ...here. * cppdefault.c: Moved to... * cppdefault.cc: ...here. * cprop.c: Moved to... * cprop.cc: ...here. * cse.c: Moved to... * cse.cc: ...here. * cselib.c: Moved to... * cselib.cc: ...here. * ctfc.c: Moved to... * ctfc.cc: ...here. * ctfout.c: Moved to... * ctfout.cc: ...here. * data-streamer-in.c: Moved to... * data-streamer-in.cc: ...here. * data-streamer-out.c: Moved to... * data-streamer-out.cc: ...here. * data-streamer.c: Moved to... * data-streamer.cc: ...here. * dbgcnt.c: Moved to... * dbgcnt.cc: ...here. * dbxout.c: Moved to... * dbxout.cc: ...here. * dce.c: Moved to... * dce.cc: ...here. * ddg.c: Moved to... * ddg.cc: ...here. * debug.c: Moved to... * debug.cc: ...here. * df-core.c: Moved to... * df-core.cc: ...here. * df-problems.c: Moved to... * df-problems.cc: ...here. * df-scan.c: Moved to... * df-scan.cc: ...here. * dfp.c: Moved to... * dfp.cc: ...here. * diagnostic-color.c: Moved to... * diagnostic-color.cc: ...here. * diagnostic-show-locus.c: Moved to... * diagnostic-show-locus.cc: ...here. * diagnostic-spec.c: Moved to... * diagnostic-spec.cc: ...here. * diagnostic.c: Moved to... * diagnostic.cc: ...here. * dojump.c: Moved to... * dojump.cc: ...here. * dominance.c: Moved to... * dominance.cc: ...here. * domwalk.c: Moved to... * domwalk.cc: ...here. * double-int.c: Moved to... * double-int.cc: ...here. * dse.c: Moved to... * dse.cc: ...here. * dumpfile.c: Moved to... * dumpfile.cc: ...here. * dwarf2asm.c: Moved to... * dwarf2asm.cc: ...here. * dwarf2cfi.c: Moved to... * dwarf2cfi.cc: ...here. * dwarf2ctf.c: Moved to... * dwarf2ctf.cc: ...here. * dwarf2out.c: Moved to... * dwarf2out.cc: ...here. * early-remat.c: Moved to... * early-remat.cc: ...here. * edit-context.c: Moved to... * edit-context.cc: ...here. * emit-rtl.c: Moved to... * emit-rtl.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * et-forest.c: Moved to... * et-forest.cc: ...here. * except.c: Moved to... * except.cc: ...here. * explow.c: Moved to... * explow.cc: ...here. * expmed.c: Moved to... * expmed.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * fibonacci_heap.c: Moved to... * fibonacci_heap.cc: ...here. * file-find.c: Moved to... * file-find.cc: ...here. * file-prefix-map.c: Moved to... * file-prefix-map.cc: ...here. * final.c: Moved to... * final.cc: ...here. * fixed-value.c: Moved to... * fixed-value.cc: ...here. * fold-const-call.c: Moved to... * fold-const-call.cc: ...here. * fold-const.c: Moved to... * fold-const.cc: ...here. * fp-test.c: Moved to... * fp-test.cc: ...here. * function-tests.c: Moved to... * function-tests.cc: ...here. * function.c: Moved to... * function.cc: ...here. * fwprop.c: Moved to... * fwprop.cc: ...here. * gcc-ar.c: Moved to... * gcc-ar.cc: ...here. * gcc-main.c: Moved to... * gcc-main.cc: ...here. * gcc-rich-location.c: Moved to... * gcc-rich-location.cc: ...here. * gcc.c: Moved to... * gcc.cc: ...here. * gcov-dump.c: Moved to... * gcov-dump.cc: ...here. * gcov-io.c: Moved to... * gcov-io.cc: ...here. * gcov-tool.c: Moved to... * gcov-tool.cc: ...here. * gcov.c: Moved to... * gcov.cc: ...here. * gcse-common.c: Moved to... * gcse-common.cc: ...here. * gcse.c: Moved to... * gcse.cc: ...here. * genattr-common.c: Moved to... * genattr-common.cc: ...here. * genattr.c: Moved to... * genattr.cc: ...here. * genattrtab.c: Moved to... * genattrtab.cc: ...here. * genautomata.c: Moved to... * genautomata.cc: ...here. * gencfn-macros.c: Moved to... * gencfn-macros.cc: ...here. * gencheck.c: Moved to... * gencheck.cc: ...here. * genchecksum.c: Moved to... * genchecksum.cc: ...here. * gencodes.c: Moved to... * gencodes.cc: ...here. * genconditions.c: Moved to... * genconditions.cc: ...here. * genconfig.c: Moved to... * genconfig.cc: ...here. * genconstants.c: Moved to... * genconstants.cc: ...here. * genemit.c: Moved to... * genemit.cc: ...here. * genenums.c: Moved to... * genenums.cc: ...here. * generic-match-head.c: Moved to... * generic-match-head.cc: ...here. * genextract.c: Moved to... * genextract.cc: ...here. * genflags.c: Moved to... * genflags.cc: ...here. * gengenrtl.c: Moved to... * gengenrtl.cc: ...here. * gengtype-parse.c: Moved to... * gengtype-parse.cc: ...here. * gengtype-state.c: Moved to... * gengtype-state.cc: ...here. * gengtype.c: Moved to... * gengtype.cc: ...here. * genhooks.c: Moved to... * genhooks.cc: ...here. * genmatch.c: Moved to... * genmatch.cc: ...here. * genmddeps.c: Moved to... * genmddeps.cc: ...here. * genmddump.c: Moved to... * genmddump.cc: ...here. * genmodes.c: Moved to... * genmodes.cc: ...here. * genopinit.c: Moved to... * genopinit.cc: ...here. * genoutput.c: Moved to... * genoutput.cc: ...here. * genpeep.c: Moved to... * genpeep.cc: ...here. * genpreds.c: Moved to... * genpreds.cc: ...here. * genrecog.c: Moved to... * genrecog.cc: ...here. * gensupport.c: Moved to... * gensupport.cc: ...here. * gentarget-def.c: Moved to... * gentarget-def.cc: ...here. * genversion.c: Moved to... * genversion.cc: ...here. * ggc-common.c: Moved to... * ggc-common.cc: ...here. * ggc-none.c: Moved to... * ggc-none.cc: ...here. * ggc-page.c: Moved to... * ggc-page.cc: ...here. * ggc-tests.c: Moved to... * ggc-tests.cc: ...here. * gimple-builder.c: Moved to... * gimple-builder.cc: ...here. * gimple-expr.c: Moved to... * gimple-expr.cc: ...here. * gimple-fold.c: Moved to... * gimple-fold.cc: ...here. * gimple-iterator.c: Moved to... * gimple-iterator.cc: ...here. * gimple-laddress.c: Moved to... * gimple-laddress.cc: ...here. * gimple-loop-jam.c: Moved to... * gimple-loop-jam.cc: ...here. * gimple-low.c: Moved to... * gimple-low.cc: ...here. * gimple-match-head.c: Moved to... * gimple-match-head.cc: ...here. * gimple-pretty-print.c: Moved to... * gimple-pretty-print.cc: ...here. * gimple-ssa-backprop.c: Moved to... * gimple-ssa-backprop.cc: ...here. * gimple-ssa-evrp-analyze.c: Moved to... * gimple-ssa-evrp-analyze.cc: ...here. * gimple-ssa-evrp.c: Moved to... * gimple-ssa-evrp.cc: ...here. * gimple-ssa-isolate-paths.c: Moved to... * gimple-ssa-isolate-paths.cc: ...here. * gimple-ssa-nonnull-compare.c: Moved to... * gimple-ssa-nonnull-compare.cc: ...here. * gimple-ssa-split-paths.c: Moved to... * gimple-ssa-split-paths.cc: ...here. * gimple-ssa-sprintf.c: Moved to... * gimple-ssa-sprintf.cc: ...here. * gimple-ssa-store-merging.c: Moved to... * gimple-ssa-store-merging.cc: ...here. * gimple-ssa-strength-reduction.c: Moved to... * gimple-ssa-strength-reduction.cc: ...here. * gimple-ssa-warn-alloca.c: Moved to... * gimple-ssa-warn-alloca.cc: ...here. * gimple-ssa-warn-restrict.c: Moved to... * gimple-ssa-warn-restrict.cc: ...here. * gimple-streamer-in.c: Moved to... * gimple-streamer-in.cc: ...here. * gimple-streamer-out.c: Moved to... * gimple-streamer-out.cc: ...here. * gimple-walk.c: Moved to... * gimple-walk.cc: ...here. * gimple-warn-recursion.c: Moved to... * gimple-warn-recursion.cc: ...here. * gimple.c: Moved to... * gimple.cc: ...here. * gimplify-me.c: Moved to... * gimplify-me.cc: ...here. * gimplify.c: Moved to... * gimplify.cc: ...here. * godump.c: Moved to... * godump.cc: ...here. * graph.c: Moved to... * graph.cc: ...here. * graphds.c: Moved to... * graphds.cc: ...here. * graphite-dependences.c: Moved to... * graphite-dependences.cc: ...here. * graphite-isl-ast-to-gimple.c: Moved to... * graphite-isl-ast-to-gimple.cc: ...here. * graphite-optimize-isl.c: Moved to... * graphite-optimize-isl.cc: ...here. * graphite-poly.c: Moved to... * graphite-poly.cc: ...here. * graphite-scop-detection.c: Moved to... * graphite-scop-detection.cc: ...here. * graphite-sese-to-poly.c: Moved to... * graphite-sese-to-poly.cc: ...here. * graphite.c: Moved to... * graphite.cc: ...here. * haifa-sched.c: Moved to... * haifa-sched.cc: ...here. * hash-map-tests.c: Moved to... * hash-map-tests.cc: ...here. * hash-set-tests.c: Moved to... * hash-set-tests.cc: ...here. * hash-table.c: Moved to... * hash-table.cc: ...here. * hooks.c: Moved to... * hooks.cc: ...here. * host-default.c: Moved to... * host-default.cc: ...here. * hw-doloop.c: Moved to... * hw-doloop.cc: ...here. * hwint.c: Moved to... * hwint.cc: ...here. * ifcvt.c: Moved to... * ifcvt.cc: ...here. * inchash.c: Moved to... * inchash.cc: ...here. * incpath.c: Moved to... * incpath.cc: ...here. * init-regs.c: Moved to... * init-regs.cc: ...here. * input.c: Moved to... * input.cc: ...here. * internal-fn.c: Moved to... * internal-fn.cc: ...here. * intl.c: Moved to... * intl.cc: ...here. * ipa-comdats.c: Moved to... * ipa-comdats.cc: ...here. * ipa-cp.c: Moved to... * ipa-cp.cc: ...here. * ipa-devirt.c: Moved to... * ipa-devirt.cc: ...here. * ipa-fnsummary.c: Moved to... * ipa-fnsummary.cc: ...here. * ipa-icf-gimple.c: Moved to... * ipa-icf-gimple.cc: ...here. * ipa-icf.c: Moved to... * ipa-icf.cc: ...here. * ipa-inline-analysis.c: Moved to... * ipa-inline-analysis.cc: ...here. * ipa-inline-transform.c: Moved to... * ipa-inline-transform.cc: ...here. * ipa-inline.c: Moved to... * ipa-inline.cc: ...here. * ipa-modref-tree.c: Moved to... * ipa-modref-tree.cc: ...here. * ipa-modref.c: Moved to... * ipa-modref.cc: ...here. * ipa-param-manipulation.c: Moved to... * ipa-param-manipulation.cc: ...here. * ipa-polymorphic-call.c: Moved to... * ipa-polymorphic-call.cc: ...here. * ipa-predicate.c: Moved to... * ipa-predicate.cc: ...here. * ipa-profile.c: Moved to... * ipa-profile.cc: ...here. * ipa-prop.c: Moved to... * ipa-prop.cc: ...here. * ipa-pure-const.c: Moved to... * ipa-pure-const.cc: ...here. * ipa-ref.c: Moved to... * ipa-ref.cc: ...here. * ipa-reference.c: Moved to... * ipa-reference.cc: ...here. * ipa-split.c: Moved to... * ipa-split.cc: ...here. * ipa-sra.c: Moved to... * ipa-sra.cc: ...here. * ipa-utils.c: Moved to... * ipa-utils.cc: ...here. * ipa-visibility.c: Moved to... * ipa-visibility.cc: ...here. * ipa.c: Moved to... * ipa.cc: ...here. * ira-build.c: Moved to... * ira-build.cc: ...here. * ira-color.c: Moved to... * ira-color.cc: ...here. * ira-conflicts.c: Moved to... * ira-conflicts.cc: ...here. * ira-costs.c: Moved to... * ira-costs.cc: ...here. * ira-emit.c: Moved to... * ira-emit.cc: ...here. * ira-lives.c: Moved to... * ira-lives.cc: ...here. * ira.c: Moved to... * ira.cc: ...here. * jump.c: Moved to... * jump.cc: ...here. * langhooks.c: Moved to... * langhooks.cc: ...here. * lcm.c: Moved to... * lcm.cc: ...here. * lists.c: Moved to... * lists.cc: ...here. * loop-doloop.c: Moved to... * loop-doloop.cc: ...here. * loop-init.c: Moved to... * loop-init.cc: ...here. * loop-invariant.c: Moved to... * loop-invariant.cc: ...here. * loop-iv.c: Moved to... * loop-iv.cc: ...here. * loop-unroll.c: Moved to... * loop-unroll.cc: ...here. * lower-subreg.c: Moved to... * lower-subreg.cc: ...here. * lra-assigns.c: Moved to... * lra-assigns.cc: ...here. * lra-coalesce.c: Moved to... * lra-coalesce.cc: ...here. * lra-constraints.c: Moved to... * lra-constraints.cc: ...here. * lra-eliminations.c: Moved to... * lra-eliminations.cc: ...here. * lra-lives.c: Moved to... * lra-lives.cc: ...here. * lra-remat.c: Moved to... * lra-remat.cc: ...here. * lra-spills.c: Moved to... * lra-spills.cc: ...here. * lra.c: Moved to... * lra.cc: ...here. * lto-cgraph.c: Moved to... * lto-cgraph.cc: ...here. * lto-compress.c: Moved to... * lto-compress.cc: ...here. * lto-opts.c: Moved to... * lto-opts.cc: ...here. * lto-section-in.c: Moved to... * lto-section-in.cc: ...here. * lto-section-out.c: Moved to... * lto-section-out.cc: ...here. * lto-streamer-in.c: Moved to... * lto-streamer-in.cc: ...here. * lto-streamer-out.c: Moved to... * lto-streamer-out.cc: ...here. * lto-streamer.c: Moved to... * lto-streamer.cc: ...here. * lto-wrapper.c: Moved to... * lto-wrapper.cc: ...here. * main.c: Moved to... * main.cc: ...here. * mcf.c: Moved to... * mcf.cc: ...here. * mode-switching.c: Moved to... * mode-switching.cc: ...here. * modulo-sched.c: Moved to... * modulo-sched.cc: ...here. * multiple_target.c: Moved to... * multiple_target.cc: ...here. * omp-expand.c: Moved to... * omp-expand.cc: ...here. * omp-general.c: Moved to... * omp-general.cc: ...here. * omp-low.c: Moved to... * omp-low.cc: ...here. * omp-offload.c: Moved to... * omp-offload.cc: ...here. * omp-simd-clone.c: Moved to... * omp-simd-clone.cc: ...here. * opt-suggestions.c: Moved to... * opt-suggestions.cc: ...here. * optabs-libfuncs.c: Moved to... * optabs-libfuncs.cc: ...here. * optabs-query.c: Moved to... * optabs-query.cc: ...here. * optabs-tree.c: Moved to... * optabs-tree.cc: ...here. * optabs.c: Moved to... * optabs.cc: ...here. * opts-common.c: Moved to... * opts-common.cc: ...here. * opts-global.c: Moved to... * opts-global.cc: ...here. * opts.c: Moved to... * opts.cc: ...here. * passes.c: Moved to... * passes.cc: ...here. * plugin.c: Moved to... * plugin.cc: ...here. * postreload-gcse.c: Moved to... * postreload-gcse.cc: ...here. * postreload.c: Moved to... * postreload.cc: ...here. * predict.c: Moved to... * predict.cc: ...here. * prefix.c: Moved to... * prefix.cc: ...here. * pretty-print.c: Moved to... * pretty-print.cc: ...here. * print-rtl-function.c: Moved to... * print-rtl-function.cc: ...here. * print-rtl.c: Moved to... * print-rtl.cc: ...here. * print-tree.c: Moved to... * print-tree.cc: ...here. * profile-count.c: Moved to... * profile-count.cc: ...here. * profile.c: Moved to... * profile.cc: ...here. * read-md.c: Moved to... * read-md.cc: ...here. * read-rtl-function.c: Moved to... * read-rtl-function.cc: ...here. * read-rtl.c: Moved to... * read-rtl.cc: ...here. * real.c: Moved to... * real.cc: ...here. * realmpfr.c: Moved to... * realmpfr.cc: ...here. * recog.c: Moved to... * recog.cc: ...here. * ree.c: Moved to... * ree.cc: ...here. * reg-stack.c: Moved to... * reg-stack.cc: ...here. * regcprop.c: Moved to... * regcprop.cc: ...here. * reginfo.c: Moved to... * reginfo.cc: ...here. * regrename.c: Moved to... * regrename.cc: ...here. * regstat.c: Moved to... * regstat.cc: ...here. * reload.c: Moved to... * reload.cc: ...here. * reload1.c: Moved to... * reload1.cc: ...here. * reorg.c: Moved to... * reorg.cc: ...here. * resource.c: Moved to... * resource.cc: ...here. * rtl-error.c: Moved to... * rtl-error.cc: ...here. * rtl-tests.c: Moved to... * rtl-tests.cc: ...here. * rtl.c: Moved to... * rtl.cc: ...here. * rtlanal.c: Moved to... * rtlanal.cc: ...here. * rtlhash.c: Moved to... * rtlhash.cc: ...here. * rtlhooks.c: Moved to... * rtlhooks.cc: ...here. * rtx-vector-builder.c: Moved to... * rtx-vector-builder.cc: ...here. * run-rtl-passes.c: Moved to... * run-rtl-passes.cc: ...here. * sancov.c: Moved to... * sancov.cc: ...here. * sanopt.c: Moved to... * sanopt.cc: ...here. * sbitmap.c: Moved to... * sbitmap.cc: ...here. * sched-deps.c: Moved to... * sched-deps.cc: ...here. * sched-ebb.c: Moved to... * sched-ebb.cc: ...here. * sched-rgn.c: Moved to... * sched-rgn.cc: ...here. * sel-sched-dump.c: Moved to... * sel-sched-dump.cc: ...here. * sel-sched-ir.c: Moved to... * sel-sched-ir.cc: ...here. * sel-sched.c: Moved to... * sel-sched.cc: ...here. * selftest-diagnostic.c: Moved to... * selftest-diagnostic.cc: ...here. * selftest-rtl.c: Moved to... * selftest-rtl.cc: ...here. * selftest-run-tests.c: Moved to... * selftest-run-tests.cc: ...here. * selftest.c: Moved to... * selftest.cc: ...here. * sese.c: Moved to... * sese.cc: ...here. * shrink-wrap.c: Moved to... * shrink-wrap.cc: ...here. * simplify-rtx.c: Moved to... * simplify-rtx.cc: ...here. * sparseset.c: Moved to... * sparseset.cc: ...here. * spellcheck-tree.c: Moved to... * spellcheck-tree.cc: ...here. * spellcheck.c: Moved to... * spellcheck.cc: ...here. * sreal.c: Moved to... * sreal.cc: ...here. * stack-ptr-mod.c: Moved to... * stack-ptr-mod.cc: ...here. * statistics.c: Moved to... * statistics.cc: ...here. * stmt.c: Moved to... * stmt.cc: ...here. * stor-layout.c: Moved to... * stor-layout.cc: ...here. * store-motion.c: Moved to... * store-motion.cc: ...here. * streamer-hooks.c: Moved to... * streamer-hooks.cc: ...here. * stringpool.c: Moved to... * stringpool.cc: ...here. * substring-locations.c: Moved to... * substring-locations.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * target-globals.c: Moved to... * target-globals.cc: ...here. * targhooks.c: Moved to... * targhooks.cc: ...here. * timevar.c: Moved to... * timevar.cc: ...here. * toplev.c: Moved to... * toplev.cc: ...here. * tracer.c: Moved to... * tracer.cc: ...here. * trans-mem.c: Moved to... * trans-mem.cc: ...here. * tree-affine.c: Moved to... * tree-affine.cc: ...here. * tree-call-cdce.c: Moved to... * tree-call-cdce.cc: ...here. * tree-cfg.c: Moved to... * tree-cfg.cc: ...here. * tree-cfgcleanup.c: Moved to... * tree-cfgcleanup.cc: ...here. * tree-chrec.c: Moved to... * tree-chrec.cc: ...here. * tree-complex.c: Moved to... * tree-complex.cc: ...here. * tree-data-ref.c: Moved to... * tree-data-ref.cc: ...here. * tree-dfa.c: Moved to... * tree-dfa.cc: ...here. * tree-diagnostic.c: Moved to... * tree-diagnostic.cc: ...here. * tree-dump.c: Moved to... * tree-dump.cc: ...here. * tree-eh.c: Moved to... * tree-eh.cc: ...here. * tree-emutls.c: Moved to... * tree-emutls.cc: ...here. * tree-if-conv.c: Moved to... * tree-if-conv.cc: ...here. * tree-inline.c: Moved to... * tree-inline.cc: ...here. * tree-into-ssa.c: Moved to... * tree-into-ssa.cc: ...here. * tree-iterator.c: Moved to... * tree-iterator.cc: ...here. * tree-loop-distribution.c: Moved to... * tree-loop-distribution.cc: ...here. * tree-nested.c: Moved to... * tree-nested.cc: ...here. * tree-nrv.c: Moved to... * tree-nrv.cc: ...here. * tree-object-size.c: Moved to... * tree-object-size.cc: ...here. * tree-outof-ssa.c: Moved to... * tree-outof-ssa.cc: ...here. * tree-parloops.c: Moved to... * tree-parloops.cc: ...here. * tree-phinodes.c: Moved to... * tree-phinodes.cc: ...here. * tree-predcom.c: Moved to... * tree-predcom.cc: ...here. * tree-pretty-print.c: Moved to... * tree-pretty-print.cc: ...here. * tree-profile.c: Moved to... * tree-profile.cc: ...here. * tree-scalar-evolution.c: Moved to... * tree-scalar-evolution.cc: ...here. * tree-sra.c: Moved to... * tree-sra.cc: ...here. * tree-ssa-address.c: Moved to... * tree-ssa-address.cc: ...here. * tree-ssa-alias.c: Moved to... * tree-ssa-alias.cc: ...here. * tree-ssa-ccp.c: Moved to... * tree-ssa-ccp.cc: ...here. * tree-ssa-coalesce.c: Moved to... * tree-ssa-coalesce.cc: ...here. * tree-ssa-copy.c: Moved to... * tree-ssa-copy.cc: ...here. * tree-ssa-dce.c: Moved to... * tree-ssa-dce.cc: ...here. * tree-ssa-dom.c: Moved to... * tree-ssa-dom.cc: ...here. * tree-ssa-dse.c: Moved to... * tree-ssa-dse.cc: ...here. * tree-ssa-forwprop.c: Moved to... * tree-ssa-forwprop.cc: ...here. * tree-ssa-ifcombine.c: Moved to... * tree-ssa-ifcombine.cc: ...here. * tree-ssa-live.c: Moved to... * tree-ssa-live.cc: ...here. * tree-ssa-loop-ch.c: Moved to... * tree-ssa-loop-ch.cc: ...here. * tree-ssa-loop-im.c: Moved to... * tree-ssa-loop-im.cc: ...here. * tree-ssa-loop-ivcanon.c: Moved to... * tree-ssa-loop-ivcanon.cc: ...here. * tree-ssa-loop-ivopts.c: Moved to... * tree-ssa-loop-ivopts.cc: ...here. * tree-ssa-loop-manip.c: Moved to... * tree-ssa-loop-manip.cc: ...here. * tree-ssa-loop-niter.c: Moved to... * tree-ssa-loop-niter.cc: ...here. * tree-ssa-loop-prefetch.c: Moved to... * tree-ssa-loop-prefetch.cc: ...here. * tree-ssa-loop-split.c: Moved to... * tree-ssa-loop-split.cc: ...here. * tree-ssa-loop-unswitch.c: Moved to... * tree-ssa-loop-unswitch.cc: ...here. * tree-ssa-loop.c: Moved to... * tree-ssa-loop.cc: ...here. * tree-ssa-math-opts.c: Moved to... * tree-ssa-math-opts.cc: ...here. * tree-ssa-operands.c: Moved to... * tree-ssa-operands.cc: ...here. * tree-ssa-phiopt.c: Moved to... * tree-ssa-phiopt.cc: ...here. * tree-ssa-phiprop.c: Moved to... * tree-ssa-phiprop.cc: ...here. * tree-ssa-pre.c: Moved to... * tree-ssa-pre.cc: ...here. * tree-ssa-propagate.c: Moved to... * tree-ssa-propagate.cc: ...here. * tree-ssa-reassoc.c: Moved to... * tree-ssa-reassoc.cc: ...here. * tree-ssa-sccvn.c: Moved to... * tree-ssa-sccvn.cc: ...here. * tree-ssa-scopedtables.c: Moved to... * tree-ssa-scopedtables.cc: ...here. * tree-ssa-sink.c: Moved to... * tree-ssa-sink.cc: ...here. * tree-ssa-strlen.c: Moved to... * tree-ssa-strlen.cc: ...here. * tree-ssa-structalias.c: Moved to... * tree-ssa-structalias.cc: ...here. * tree-ssa-tail-merge.c: Moved to... * tree-ssa-tail-merge.cc: ...here. * tree-ssa-ter.c: Moved to... * tree-ssa-ter.cc: ...here. * tree-ssa-threadbackward.c: Moved to... * tree-ssa-threadbackward.cc: ...here. * tree-ssa-threadedge.c: Moved to... * tree-ssa-threadedge.cc: ...here. * tree-ssa-threadupdate.c: Moved to... * tree-ssa-threadupdate.cc: ...here. * tree-ssa-uncprop.c: Moved to... * tree-ssa-uncprop.cc: ...here. * tree-ssa-uninit.c: Moved to... * tree-ssa-uninit.cc: ...here. * tree-ssa.c: Moved to... * tree-ssa.cc: ...here. * tree-ssanames.c: Moved to... * tree-ssanames.cc: ...here. * tree-stdarg.c: Moved to... * tree-stdarg.cc: ...here. * tree-streamer-in.c: Moved to... * tree-streamer-in.cc: ...here. * tree-streamer-out.c: Moved to... * tree-streamer-out.cc: ...here. * tree-streamer.c: Moved to... * tree-streamer.cc: ...here. * tree-switch-conversion.c: Moved to... * tree-switch-conversion.cc: ...here. * tree-tailcall.c: Moved to... * tree-tailcall.cc: ...here. * tree-vect-data-refs.c: Moved to... * tree-vect-data-refs.cc: ...here. * tree-vect-generic.c: Moved to... * tree-vect-generic.cc: ...here. * tree-vect-loop-manip.c: Moved to... * tree-vect-loop-manip.cc: ...here. * tree-vect-loop.c: Moved to... * tree-vect-loop.cc: ...here. * tree-vect-patterns.c: Moved to... * tree-vect-patterns.cc: ...here. * tree-vect-slp-patterns.c: Moved to... * tree-vect-slp-patterns.cc: ...here. * tree-vect-slp.c: Moved to... * tree-vect-slp.cc: ...here. * tree-vect-stmts.c: Moved to... * tree-vect-stmts.cc: ...here. * tree-vector-builder.c: Moved to... * tree-vector-builder.cc: ...here. * tree-vectorizer.c: Moved to... * tree-vectorizer.cc: ...here. * tree-vrp.c: Moved to... * tree-vrp.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * tsan.c: Moved to... * tsan.cc: ...here. * typed-splay-tree.c: Moved to... * typed-splay-tree.cc: ...here. * ubsan.c: Moved to... * ubsan.cc: ...here. * valtrack.c: Moved to... * valtrack.cc: ...here. * value-prof.c: Moved to... * value-prof.cc: ...here. * var-tracking.c: Moved to... * var-tracking.cc: ...here. * varasm.c: Moved to... * varasm.cc: ...here. * varpool.c: Moved to... * varpool.cc: ...here. * vec-perm-indices.c: Moved to... * vec-perm-indices.cc: ...here. * vec.c: Moved to... * vec.cc: ...here. * vmsdbgout.c: Moved to... * vmsdbgout.cc: ...here. * vr-values.c: Moved to... * vr-values.cc: ...here. * vtable-verify.c: Moved to... * vtable-verify.cc: ...here. * web.c: Moved to... * web.cc: ...here. * xcoffout.c: Moved to... * xcoffout.cc: ...here. gcc/c-family/ChangeLog: * c-ada-spec.c: Moved to... * c-ada-spec.cc: ...here. * c-attribs.c: Moved to... * c-attribs.cc: ...here. * c-common.c: Moved to... * c-common.cc: ...here. * c-cppbuiltin.c: Moved to... * c-cppbuiltin.cc: ...here. * c-dump.c: Moved to... * c-dump.cc: ...here. * c-format.c: Moved to... * c-format.cc: ...here. * c-gimplify.c: Moved to... * c-gimplify.cc: ...here. * c-indentation.c: Moved to... * c-indentation.cc: ...here. * c-lex.c: Moved to... * c-lex.cc: ...here. * c-omp.c: Moved to... * c-omp.cc: ...here. * c-opts.c: Moved to... * c-opts.cc: ...here. * c-pch.c: Moved to... * c-pch.cc: ...here. * c-ppoutput.c: Moved to... * c-ppoutput.cc: ...here. * c-pragma.c: Moved to... * c-pragma.cc: ...here. * c-pretty-print.c: Moved to... * c-pretty-print.cc: ...here. * c-semantics.c: Moved to... * c-semantics.cc: ...here. * c-ubsan.c: Moved to... * c-ubsan.cc: ...here. * c-warn.c: Moved to... * c-warn.cc: ...here. * cppspec.c: Moved to... * cppspec.cc: ...here. * stub-objc.c: Moved to... * stub-objc.cc: ...here. gcc/c/ChangeLog: * c-aux-info.c: Moved to... * c-aux-info.cc: ...here. * c-convert.c: Moved to... * c-convert.cc: ...here. * c-decl.c: Moved to... * c-decl.cc: ...here. * c-errors.c: Moved to... * c-errors.cc: ...here. * c-fold.c: Moved to... * c-fold.cc: ...here. * c-lang.c: Moved to... * c-lang.cc: ...here. * c-objc-common.c: Moved to... * c-objc-common.cc: ...here. * c-parser.c: Moved to... * c-parser.cc: ...here. * c-typeck.c: Moved to... * c-typeck.cc: ...here. * gccspec.c: Moved to... * gccspec.cc: ...here. * gimple-parser.c: Moved to... * gimple-parser.cc: ...here. gcc/cp/ChangeLog: * call.c: Moved to... * call.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constexpr.c: Moved to... * constexpr.cc: ...here. * cp-gimplify.c: Moved to... * cp-gimplify.cc: ...here. * cp-lang.c: Moved to... * cp-lang.cc: ...here. * cp-objcp-common.c: Moved to... * cp-objcp-common.cc: ...here. * cp-ubsan.c: Moved to... * cp-ubsan.cc: ...here. * cvt.c: Moved to... * cvt.cc: ...here. * cxx-pretty-print.c: Moved to... * cxx-pretty-print.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * decl2.c: Moved to... * decl2.cc: ...here. * dump.c: Moved to... * dump.cc: ...here. * error.c: Moved to... * error.cc: ...here. * except.c: Moved to... * except.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * friend.c: Moved to... * friend.cc: ...here. * g++spec.c: Moved to... * g++spec.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lambda.c: Moved to... * lambda.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * mangle.c: Moved to... * mangle.cc: ...here. * method.c: Moved to... * method.cc: ...here. * name-lookup.c: Moved to... * name-lookup.cc: ...here. * optimize.c: Moved to... * optimize.cc: ...here. * parser.c: Moved to... * parser.cc: ...here. * pt.c: Moved to... * pt.cc: ...here. * ptree.c: Moved to... * ptree.cc: ...here. * rtti.c: Moved to... * rtti.cc: ...here. * search.c: Moved to... * search.cc: ...here. * semantics.c: Moved to... * semantics.cc: ...here. * tree.c: Moved to... * tree.cc: ...here. * typeck.c: Moved to... * typeck.cc: ...here. * typeck2.c: Moved to... * typeck2.cc: ...here. * vtable-class-hierarchy.c: Moved to... * vtable-class-hierarchy.cc: ...here. gcc/fortran/ChangeLog: * arith.c: Moved to... * arith.cc: ...here. * array.c: Moved to... * array.cc: ...here. * bbt.c: Moved to... * bbt.cc: ...here. * check.c: Moved to... * check.cc: ...here. * class.c: Moved to... * class.cc: ...here. * constructor.c: Moved to... * constructor.cc: ...here. * convert.c: Moved to... * convert.cc: ...here. * cpp.c: Moved to... * cpp.cc: ...here. * data.c: Moved to... * data.cc: ...here. * decl.c: Moved to... * decl.cc: ...here. * dependency.c: Moved to... * dependency.cc: ...here. * dump-parse-tree.c: Moved to... * dump-parse-tree.cc: ...here. * error.c: Moved to... * error.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * f95-lang.c: Moved to... * f95-lang.cc: ...here. * frontend-passes.c: Moved to... * frontend-passes.cc: ...here. * gfortranspec.c: Moved to... * gfortranspec.cc: ...here. * interface.c: Moved to... * interface.cc: ...here. * intrinsic.c: Moved to... * intrinsic.cc: ...here. * io.c: Moved to... * io.cc: ...here. * iresolve.c: Moved to... * iresolve.cc: ...here. * match.c: Moved to... * match.cc: ...here. * matchexp.c: Moved to... * matchexp.cc: ...here. * misc.c: Moved to... * misc.cc: ...here. * module.c: Moved to... * module.cc: ...here. * openmp.c: Moved to... * openmp.cc: ...here. * options.c: Moved to... * options.cc: ...here. * parse.c: Moved to... * parse.cc: ...here. * primary.c: Moved to... * primary.cc: ...here. * resolve.c: Moved to... * resolve.cc: ...here. * scanner.c: Moved to... * scanner.cc: ...here. * simplify.c: Moved to... * simplify.cc: ...here. * st.c: Moved to... * st.cc: ...here. * symbol.c: Moved to... * symbol.cc: ...here. * target-memory.c: Moved to... * target-memory.cc: ...here. * trans-array.c: Moved to... * trans-array.cc: ...here. * trans-common.c: Moved to... * trans-common.cc: ...here. * trans-const.c: Moved to... * trans-const.cc: ...here. * trans-decl.c: Moved to... * trans-decl.cc: ...here. * trans-expr.c: Moved to... * trans-expr.cc: ...here. * trans-intrinsic.c: Moved to... * trans-intrinsic.cc: ...here. * trans-io.c: Moved to... * trans-io.cc: ...here. * trans-openmp.c: Moved to... * trans-openmp.cc: ...here. * trans-stmt.c: Moved to... * trans-stmt.cc: ...here. * trans-types.c: Moved to... * trans-types.cc: ...here. * trans.c: Moved to... * trans.cc: ...here. gcc/go/ChangeLog: * go-backend.c: Moved to... * go-backend.cc: ...here. * go-lang.c: Moved to... * go-lang.cc: ...here. * gospec.c: Moved to... * gospec.cc: ...here. gcc/jit/ChangeLog: * dummy-frontend.c: Moved to... * dummy-frontend.cc: ...here. * jit-builtins.c: Moved to... * jit-builtins.cc: ...here. * jit-logging.c: Moved to... * jit-logging.cc: ...here. * jit-playback.c: Moved to... * jit-playback.cc: ...here. * jit-recording.c: Moved to... * jit-recording.cc: ...here. * jit-result.c: Moved to... * jit-result.cc: ...here. * jit-spec.c: Moved to... * jit-spec.cc: ...here. * jit-tempdir.c: Moved to... * jit-tempdir.cc: ...here. * jit-w32.c: Moved to... * jit-w32.cc: ...here. * libgccjit.c: Moved to... * libgccjit.cc: ...here. gcc/lto/ChangeLog: * common.c: Moved to... * common.cc: ...here. * lto-common.c: Moved to... * lto-common.cc: ...here. * lto-dump.c: Moved to... * lto-dump.cc: ...here. * lto-lang.c: Moved to... * lto-lang.cc: ...here. * lto-object.c: Moved to... * lto-object.cc: ...here. * lto-partition.c: Moved to... * lto-partition.cc: ...here. * lto-symtab.c: Moved to... * lto-symtab.cc: ...here. * lto.c: Moved to... * lto.cc: ...here. gcc/objc/ChangeLog: * objc-act.c: Moved to... * objc-act.cc: ...here. * objc-encoding.c: Moved to... * objc-encoding.cc: ...here. * objc-gnu-runtime-abi-01.c: Moved to... * objc-gnu-runtime-abi-01.cc: ...here. * objc-lang.c: Moved to... * objc-lang.cc: ...here. * objc-map.c: Moved to... * objc-map.cc: ...here. * objc-next-runtime-abi-01.c: Moved to... * objc-next-runtime-abi-01.cc: ...here. * objc-next-runtime-abi-02.c: Moved to... * objc-next-runtime-abi-02.cc: ...here. * objc-runtime-shared-support.c: Moved to... * objc-runtime-shared-support.cc: ...here. gcc/objcp/ChangeLog: * objcp-decl.c: Moved to... * objcp-decl.cc: ...here. * objcp-lang.c: Moved to... * objcp-lang.cc: ...here. libcpp/ChangeLog: * charset.c: Moved to... * charset.cc: ...here. * directives.c: Moved to... * directives.cc: ...here. * errors.c: Moved to... * errors.cc: ...here. * expr.c: Moved to... * expr.cc: ...here. * files.c: Moved to... * files.cc: ...here. * identifiers.c: Moved to... * identifiers.cc: ...here. * init.c: Moved to... * init.cc: ...here. * lex.c: Moved to... * lex.cc: ...here. * line-map.c: Moved to... * line-map.cc: ...here. * macro.c: Moved to... * macro.cc: ...here. * makeucnid.c: Moved to... * makeucnid.cc: ...here. * mkdeps.c: Moved to... * mkdeps.cc: ...here. * pch.c: Moved to... * pch.cc: ...here. * symtab.c: Moved to... * symtab.cc: ...here. * traditional.c: Moved to... * traditional.cc: ...here.
Diffstat (limited to 'gcc/cp/vtable-class-hierarchy.cc')
-rw-r--r--gcc/cp/vtable-class-hierarchy.cc1346
1 files changed, 1346 insertions, 0 deletions
diff --git a/gcc/cp/vtable-class-hierarchy.cc b/gcc/cp/vtable-class-hierarchy.cc
new file mode 100644
index 0000000..4c6e2f2
--- /dev/null
+++ b/gcc/cp/vtable-class-hierarchy.cc
@@ -0,0 +1,1346 @@
+/* Copyright (C) 2012-2022 Free Software Foundation, Inc.
+
+ This file is part of GCC.
+
+ GCC is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ GCC is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+/* Virtual Table Pointer Security Pass - Detect corruption of vtable pointers
+ before using them for virtual method dispatches. */
+
+/* This file is part of the vtable security feature implementation.
+ The vtable security feature is designed to detect when a virtual
+ call is about to be made through an invalid vtable pointer
+ (possibly due to data corruption or malicious attacks). The
+ compiler finds every virtual call, and inserts a verification call
+ before the virtual call. The verification call takes the actual
+ vtable pointer value in the object through which the virtual call
+ is being made, and compares the vtable pointer against a set of all
+ valid vtable pointers that the object could contain (this set is
+ based on the declared type of the object). If the pointer is in
+ the valid set, execution is allowed to continue; otherwise the
+ program is halted.
+
+ There are several pieces needed in order to make this work: 1. For
+ every virtual class in the program (i.e. a class that contains
+ virtual methods), we need to build the set of all possible valid
+ vtables that an object of that class could point to. This includes
+ vtables for any class(es) that inherit from the class under
+ consideration. 2. For every such data set we build up, we need a
+ way to find and reference the data set. This is complicated by the
+ fact that the real vtable addresses are not known until runtime,
+ when the program is loaded into memory, but we need to reference the
+ sets at compile time when we are inserting verification calls into
+ the program. 3. We need to find every virtual call in the program,
+ and insert the verification call (with the appropriate arguments)
+ before the virtual call. 4. We need some runtime library pieces:
+ the code to build up the data sets at runtime; the code to actually
+ perform the verification using the data sets; and some code to set
+ protections on the data sets, so they themselves do not become
+ hacker targets.
+
+ To find and reference the set of valid vtable pointers for any given
+ virtual class, we create a special global varible for each virtual
+ class. We refer to this as the "vtable map variable" for that
+ class. The vtable map variable has the type "void *", and is
+ initialized by the compiler to NULL. At runtime when the set of
+ valid vtable pointers for a virtual class, e.g. class Foo, is built,
+ the vtable map variable for class Foo is made to point to the set.
+ During compile time, when the compiler is inserting verification
+ calls into the program, it passes the vtable map variable for the
+ appropriate class to the verification call, so that at runtime the
+ verification call can find the appropriate data set.
+
+ The actual set of valid vtable pointers for a virtual class,
+ e.g. class Foo, cannot be built until runtime, when the vtables get
+ loaded into memory and their addresses are known. But the knowledge
+ about which vtables belong in which class' hierarchy is only known
+ at compile time. Therefore at compile time we collect class
+ hierarchy and vtable information about every virtual class, and we
+ generate calls to build up the data sets at runtime. To build the
+ data sets, we call one of the functions we add to the runtime
+ library, __VLTRegisterPair. __VLTRegisterPair takes two arguments,
+ a vtable map variable and the address of a vtable. If the vtable
+ map variable is currently NULL, it creates a new data set (hash
+ table), makes the vtable map variable point to the new data set, and
+ inserts the vtable address into the data set. If the vtable map
+ variable is not NULL, it just inserts the vtable address into the
+ data set. In order to make sure that our data sets are built before
+ any verification calls happen, we create a special constructor
+ initialization function for each compilation unit, give it a very
+ high initialization priority, and insert all of our calls to
+ __VLTRegisterPair into our special constructor initialization
+ function.
+
+ The vtable verification feature is controlled by the flag
+ '-fvtable-verify='. There are three flavors of this:
+ '-fvtable-verify=std', '-fvtable-verify=preinit', and
+ '-fvtable-verify=none'. If the option '-fvtable-verfy=preinit' is
+ used, then our constructor initialization function gets put into the
+ preinit array. This is necessary if there are data sets that need
+ to be built very early in execution. If the constructor
+ initialization function gets put into the preinit array, the we also
+ add calls to __VLTChangePermission at the beginning and end of the
+ function. The call at the beginning sets the permissions on the
+ data sets and vtable map variables to read/write, and the one at the
+ end makes them read-only. If the '-fvtable-verify=std' option is
+ used, the constructor initialization functions are executed at their
+ normal time, and the __VLTChangePermission calls are handled
+ differently (see the comments in libstdc++-v3/libsupc++/vtv_rts.cc).
+ The option '-fvtable-verify=none' turns off vtable verification.
+
+ This file contains code to find and record the class hierarchies for
+ the virtual classes in a program, and all the vtables associated
+ with each such class; to generate the vtable map variables; and to
+ generate the constructor initialization function (with the calls to
+ __VLTRegisterPair, and __VLTChangePermission). The main data
+ structures used for collecting the class hierarchy data and
+ building/maintaining the vtable map variable data are defined in
+ gcc/vtable-verify.h, because they are used both here and in
+ gcc/vtable-verify.c. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "vtable-verify.h"
+#include "cp-tree.h"
+#include "stringpool.h"
+#include "cgraph.h"
+#include "output.h"
+#include "tree-iterator.h"
+#include "gimplify.h"
+#include "stor-layout.h"
+
+static int num_calls_to_regset = 0;
+static int num_calls_to_regpair = 0;
+static int current_set_size;
+
+/* Mark these specially since they need to be stored in precompiled
+ header IR. */
+static GTY (()) vec<tree, va_gc> *vlt_saved_class_info;
+static GTY (()) tree vlt_register_pairs_fndecl = NULL_TREE;
+static GTY (()) tree vlt_register_set_fndecl = NULL_TREE;
+
+struct work_node {
+ struct vtv_graph_node *node;
+ struct work_node *next;
+};
+
+struct vtbl_map_node *vtable_find_or_create_map_decl (tree);
+
+/* As part of vtable verification the compiler generates and inserts
+ calls to __VLTVerifyVtablePointer, which is in libstdc++. This
+ function builds and initializes the function decl that is used
+ in generating those function calls.
+
+ In addition to __VLTVerifyVtablePointer there is also
+ __VLTVerifyVtablePointerDebug which can be used in place of
+ __VLTVerifyVtablePointer, and which takes extra parameters and
+ outputs extra information, to help debug problems. The debug
+ version of this function is generated and used if flag_vtv_debug is
+ true.
+
+ The signatures for these functions are:
+
+ void * __VLTVerifyVtablePointer (void **, void*);
+ void * __VLTVerifyVtablePointerDebug (void**, void *, char *, char *);
+*/
+
+void
+vtv_build_vtable_verify_fndecl (void)
+{
+ tree func_type = NULL_TREE;
+
+ if (verify_vtbl_ptr_fndecl != NULL_TREE
+ && TREE_CODE (verify_vtbl_ptr_fndecl) != ERROR_MARK)
+ return;
+
+ if (flag_vtv_debug)
+ {
+ func_type = build_function_type_list (const_ptr_type_node,
+ build_pointer_type (ptr_type_node),
+ const_ptr_type_node,
+ const_string_type_node,
+ const_string_type_node,
+ NULL_TREE);
+ verify_vtbl_ptr_fndecl =
+ build_lang_decl (FUNCTION_DECL,
+ get_identifier ("__VLTVerifyVtablePointerDebug"),
+ func_type);
+ }
+ else
+ {
+ func_type = build_function_type_list (const_ptr_type_node,
+ build_pointer_type (ptr_type_node),
+ const_ptr_type_node,
+ NULL_TREE);
+ verify_vtbl_ptr_fndecl =
+ build_lang_decl (FUNCTION_DECL,
+ get_identifier ("__VLTVerifyVtablePointer"),
+ func_type);
+ }
+
+ TREE_NOTHROW (verify_vtbl_ptr_fndecl) = 1;
+ DECL_ATTRIBUTES (verify_vtbl_ptr_fndecl)
+ = tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (verify_vtbl_ptr_fndecl));
+ DECL_PURE_P (verify_vtbl_ptr_fndecl) = 1;
+ TREE_PUBLIC (verify_vtbl_ptr_fndecl) = 1;
+ DECL_PRESERVE_P (verify_vtbl_ptr_fndecl) = 1;
+}
+
+/* As part of vtable verification the compiler generates and inserts
+ calls to __VLTRegisterSet and __VLTRegisterPair, which are in
+ libsupc++. This function builds and initializes the function decls
+ that are used in generating those function calls.
+
+ The signatures for these functions are:
+
+ void __VLTRegisterSetDebug (void **, const void *, std::size_t,
+ size_t, void **);
+
+ void __VLTRegisterSet (void **, const void *, std::size_t,
+ size_t, void **);
+
+ void __VLTRegisterPairDebug (void **, const void *, size_t,
+ const void *, const char *, const char *);
+
+ void __VLTRegisterPair (void **, const void *, size_t, const void *);
+*/
+
+static void
+init_functions (void)
+{
+ tree register_set_type;
+ tree register_pairs_type;
+
+ if (vlt_register_set_fndecl != NULL_TREE)
+ return;
+
+ gcc_assert (vlt_register_pairs_fndecl == NULL_TREE);
+ gcc_assert (vlt_register_set_fndecl == NULL_TREE);
+
+ /* Build function decl for __VLTRegisterSet*. */
+
+ register_set_type = build_function_type_list
+ (void_type_node,
+ build_pointer_type (ptr_type_node),
+ const_ptr_type_node,
+ size_type_node,
+ size_type_node,
+ build_pointer_type (ptr_type_node),
+ NULL_TREE);
+
+ if (flag_vtv_debug)
+ vlt_register_set_fndecl = build_lang_decl
+ (FUNCTION_DECL,
+ get_identifier ("__VLTRegisterSetDebug"),
+ register_set_type);
+ else
+ vlt_register_set_fndecl = build_lang_decl
+ (FUNCTION_DECL,
+ get_identifier ("__VLTRegisterSet"),
+ register_set_type);
+
+
+ TREE_NOTHROW (vlt_register_set_fndecl) = 1;
+ DECL_ATTRIBUTES (vlt_register_set_fndecl) =
+ tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (vlt_register_set_fndecl));
+ DECL_EXTERNAL(vlt_register_set_fndecl) = 1;
+ TREE_PUBLIC (vlt_register_set_fndecl) = 1;
+ DECL_PRESERVE_P (vlt_register_set_fndecl) = 1;
+ SET_DECL_LANGUAGE (vlt_register_set_fndecl, lang_cplusplus);
+
+ /* Build function decl for __VLTRegisterPair*. */
+
+ if (flag_vtv_debug)
+ {
+ register_pairs_type = build_function_type_list (void_type_node,
+ build_pointer_type
+ (ptr_type_node),
+ const_ptr_type_node,
+ size_type_node,
+ const_ptr_type_node,
+ const_string_type_node,
+ const_string_type_node,
+ NULL_TREE);
+
+ vlt_register_pairs_fndecl = build_lang_decl
+ (FUNCTION_DECL,
+ get_identifier ("__VLTRegisterPairDebug"),
+ register_pairs_type);
+ }
+ else
+ {
+ register_pairs_type = build_function_type_list (void_type_node,
+ build_pointer_type
+ (ptr_type_node),
+ const_ptr_type_node,
+ size_type_node,
+ const_ptr_type_node,
+ NULL_TREE);
+
+ vlt_register_pairs_fndecl = build_lang_decl
+ (FUNCTION_DECL,
+ get_identifier ("__VLTRegisterPair"),
+ register_pairs_type);
+ }
+
+ TREE_NOTHROW (vlt_register_pairs_fndecl) = 1;
+ DECL_ATTRIBUTES (vlt_register_pairs_fndecl) =
+ tree_cons (get_identifier ("leaf"), NULL,
+ DECL_ATTRIBUTES (vlt_register_pairs_fndecl));
+ DECL_EXTERNAL(vlt_register_pairs_fndecl) = 1;
+ TREE_PUBLIC (vlt_register_pairs_fndecl) = 1;
+ DECL_PRESERVE_P (vlt_register_pairs_fndecl) = 1;
+ SET_DECL_LANGUAGE (vlt_register_pairs_fndecl, lang_cplusplus);
+
+}
+
+/* This is a helper function for
+ vtv_compute_class_hierarchy_transitive_closure. It adds a
+ vtv_graph_node to the WORKLIST, which is a linked list of
+ seen-but-not-yet-processed nodes. INSERTED is a bitmap, one bit
+ per node, to help make sure that we don't insert a node into the
+ worklist more than once. Each node represents a class somewhere in
+ our class hierarchy information. Every node in the graph gets added
+ to the worklist exactly once and removed from the worklist exactly
+ once (when all of its children have been processed). */
+
+static void
+add_to_worklist (struct work_node **worklist, struct vtv_graph_node *node,
+ sbitmap inserted)
+{
+ struct work_node *new_work_node;
+
+ if (bitmap_bit_p (inserted, node->class_uid))
+ return;
+
+ new_work_node = XNEW (struct work_node);
+ new_work_node->next = *worklist;
+ new_work_node->node = node;
+ *worklist = new_work_node;
+
+ bitmap_set_bit (inserted, node->class_uid);
+}
+
+/* This is a helper function for
+ vtv_compute_class_hierarchy_transitive_closure. It goes through
+ the WORKLIST of class hierarchy nodes looking for a "leaf" node,
+ i.e. a node whose children in the hierarchy have all been
+ processed. When it finds the next leaf node, it removes it from
+ the linked list (WORKLIST) and returns the node. */
+
+static struct vtv_graph_node *
+find_and_remove_next_leaf_node (struct work_node **worklist)
+{
+ struct work_node *prev, *cur;
+ struct vtv_graph_node *ret_val = NULL;
+
+ for (prev = NULL, cur = *worklist; cur; prev = cur, cur = cur->next)
+ {
+ if ((cur->node->children).length() == cur->node->num_processed_children)
+ {
+ if (prev == NULL)
+ (*worklist) = cur->next;
+ else
+ prev->next = cur->next;
+
+ cur->next = NULL;
+ ret_val = cur->node;
+ free (cur);
+ return ret_val;
+ }
+ }
+
+ return NULL;
+}
+
+/* In our class hierarchy graph, each class node contains a bitmap,
+ with one bit for each class in the hierarchy. The bits are set for
+ classes that are descendants in the graph of the current node.
+ Initially the descendants bitmap is only set for immediate
+ descendants. This function traverses the class hierarchy graph,
+ bottom up, filling in the transitive closures for the descendants
+ as we rise up the graph. */
+
+void
+vtv_compute_class_hierarchy_transitive_closure (void)
+{
+ struct work_node *worklist = NULL;
+ sbitmap inserted = sbitmap_alloc (num_vtable_map_nodes);
+ unsigned i;
+ unsigned j;
+
+ /* Note: Every node in the graph gets added to the worklist exactly
+ once and removed from the worklist exactly once (when all of its
+ children have been processed). Each node's children edges are
+ followed exactly once, and each node's parent edges are followed
+ exactly once. So this algorithm is roughly O(V + 2E), i.e.
+ O(E + V). */
+
+ /* Set-up: */
+ /* Find all the "leaf" nodes in the graph, and add them to the worklist. */
+ bitmap_clear (inserted);
+ for (j = 0; j < num_vtable_map_nodes; ++j)
+ {
+ struct vtbl_map_node *cur = vtbl_map_nodes_vec[j];
+ if (cur->class_info
+ && ((cur->class_info->children).length() == 0)
+ && ! (bitmap_bit_p (inserted, cur->class_info->class_uid)))
+ add_to_worklist (&worklist, cur->class_info, inserted);
+ }
+
+ /* Main work: pull next leaf node off work list, process it, add its
+ parents to the worklist, where a 'leaf' node is one that has no
+ children, or all of its children have been processed. */
+ while (worklist)
+ {
+ struct vtv_graph_node *temp_node =
+ find_and_remove_next_leaf_node (&worklist);
+
+ gcc_assert (temp_node != NULL);
+ temp_node->descendants = sbitmap_alloc (num_vtable_map_nodes);
+ bitmap_clear (temp_node->descendants);
+ bitmap_set_bit (temp_node->descendants, temp_node->class_uid);
+ for (i = 0; i < (temp_node->children).length(); ++i)
+ bitmap_ior (temp_node->descendants, temp_node->descendants,
+ temp_node->children[i]->descendants);
+ for (i = 0; i < (temp_node->parents).length(); ++i)
+ {
+ temp_node->parents[i]->num_processed_children =
+ temp_node->parents[i]->num_processed_children + 1;
+ if (!bitmap_bit_p (inserted, temp_node->parents[i]->class_uid))
+ add_to_worklist (&worklist, temp_node->parents[i], inserted);
+ }
+ }
+}
+
+/* Keep track of which pairs we have already created __VLTRegisterPair
+ calls for, to prevent creating duplicate calls within the same
+ compilation unit. VTABLE_DECL is the var decl for the vtable of
+ the (descendant) class that we are adding to our class hierarchy
+ data. VPTR_ADDRESS is an expression for calculating the correct
+ offset into the vtable (VTABLE_DECL). It is the actual vtable
+ pointer address that will be stored in our list of valid vtable
+ pointers for BASE_CLASS. BASE_CLASS is the record_type node for
+ the base class to whose hiearchy we want to add
+ VPTR_ADDRESS. (VTABLE_DECL should be the vtable for BASE_CLASS or
+ one of BASE_CLASS' descendents. */
+
+static bool
+check_and_record_registered_pairs (tree vtable_decl, tree vptr_address,
+ tree base_class)
+{
+ unsigned offset;
+ struct vtbl_map_node *base_vtable_map_node;
+ bool inserted_something = false;
+
+
+ if (TREE_CODE (vptr_address) == ADDR_EXPR
+ && TREE_CODE (TREE_OPERAND (vptr_address, 0)) == MEM_REF)
+ vptr_address = TREE_OPERAND (vptr_address, 0);
+
+ if (TREE_OPERAND_LENGTH (vptr_address) > 1)
+ offset = TREE_INT_CST_LOW (TREE_OPERAND (vptr_address, 1));
+ else
+ offset = 0;
+
+ base_vtable_map_node = vtbl_map_get_node (TYPE_MAIN_VARIANT (base_class));
+
+ inserted_something = vtbl_map_node_registration_insert
+ (base_vtable_map_node,
+ vtable_decl,
+ offset);
+ return !inserted_something;
+}
+
+/* Given an IDENTIFIER_NODE, build and return a string literal based on it. */
+
+static tree
+build_string_from_id (tree identifier)
+{
+ int len;
+
+ gcc_assert (TREE_CODE (identifier) == IDENTIFIER_NODE);
+
+ len = IDENTIFIER_LENGTH (identifier);
+ return build_string_literal (len + 1, IDENTIFIER_POINTER (identifier));
+}
+
+/* A class may contain secondary vtables in it, for various reasons.
+ This function goes through the decl chain of a class record looking
+ for any fields that point to secondary vtables, and adding calls to
+ __VLTRegisterPair for the secondary vtable pointers.
+
+ BASE_CLASS_DECL_ARG is an expression for the address of the vtable
+ map variable for the BASE_CLASS (whose hierarchy we are currently
+ updating). BASE_CLASS is the record_type node for the base class.
+ RECORD_TYPE is the record_type node for the descendant class that
+ we are possibly adding to BASE_CLASS's hierarchy. BODY is the
+ function body for the constructor init function to which we are
+ adding our calls to __VLTRegisterPair. */
+
+static void
+register_construction_vtables (tree base_class, tree record_type,
+ vec<tree> *vtable_ptr_array)
+{
+ tree vtbl_var_decl;
+
+ if (TREE_CODE (record_type) != RECORD_TYPE)
+ return;
+
+ vtbl_var_decl = CLASSTYPE_VTABLES (record_type);
+
+ if (CLASSTYPE_VBASECLASSES (record_type))
+ {
+ tree vtt_decl;
+ bool already_registered = false;
+ tree val_vtbl_decl = NULL_TREE;
+
+ vtt_decl = DECL_CHAIN (vtbl_var_decl);
+
+ /* Check to see if we have found a VTT. Add its data if appropriate. */
+ if (vtt_decl)
+ {
+ tree values = DECL_INITIAL (vtt_decl);
+ if (TREE_ASM_WRITTEN (vtt_decl)
+ && values != NULL_TREE
+ && TREE_CODE (values) == CONSTRUCTOR
+ && TREE_CODE (TREE_TYPE (values)) == ARRAY_TYPE)
+ {
+ unsigned HOST_WIDE_INT cnt;
+ constructor_elt *ce;
+
+ /* Loop through the initialization values for this
+ vtable to get all the correct vtable pointer
+ addresses that we need to add to our set of valid
+ vtable pointers for the current base class. This may
+ result in adding more than just the element assigned
+ to the primary vptr of the class, so we may end up
+ with more vtable pointers than are strictly
+ necessary. */
+
+ for (cnt = 0;
+ vec_safe_iterate (CONSTRUCTOR_ELTS (values),
+ cnt, &ce);
+ cnt++)
+ {
+ tree value = ce->value;
+
+ /* Search for the ADDR_EXPR operand within the value. */
+
+ while (value
+ && TREE_OPERAND (value, 0)
+ && TREE_CODE (TREE_OPERAND (value, 0)) == ADDR_EXPR)
+ value = TREE_OPERAND (value, 0);
+
+ /* The VAR_DECL for the vtable should be the first
+ argument of the ADDR_EXPR, which is the first
+ argument of value.*/
+
+ if (TREE_OPERAND (value, 0))
+ val_vtbl_decl = TREE_OPERAND (value, 0);
+
+ while (!VAR_P (val_vtbl_decl)
+ && TREE_OPERAND (val_vtbl_decl, 0))
+ val_vtbl_decl = TREE_OPERAND (val_vtbl_decl, 0);
+
+ gcc_assert (VAR_P (val_vtbl_decl));
+
+ /* Check to see if we already have this vtable pointer in
+ our valid set for this base class. */
+
+ already_registered = check_and_record_registered_pairs
+ (val_vtbl_decl,
+ value,
+ base_class);
+
+ if (already_registered)
+ continue;
+
+ /* Add this vtable pointer to our set of valid
+ pointers for the base class. */
+
+ vtable_ptr_array->safe_push (value);
+ current_set_size++;
+ }
+ }
+ }
+ }
+}
+
+/* This function iterates through all the vtables it can find from the
+ BINFO of a class, to make sure we have found ALL of the vtables
+ that an object of that class could point to. Generate calls to
+ __VLTRegisterPair for those vtable pointers that we find.
+
+ BINFO is the tree_binfo node for the BASE_CLASS. BODY is the
+ function body for the constructor init function to which we are
+ adding calls to __VLTRegisterPair. ARG1 is an expression for the
+ address of the vtable map variable (for the BASE_CLASS), that will
+ point to the updated data set. BASE_CLASS is the record_type node
+ for the base class whose set of valid vtable pointers we are
+ updating. STR1 and STR2 are all debugging information, to be passed
+ as parameters to __VLTRegisterPairDebug. STR1 represents the name
+ of the vtable map variable to be updated by the call. Similarly,
+ STR2 represents the name of the class whose vtable pointer is being
+ added to the hierarchy. */
+
+static void
+register_other_binfo_vtables (tree binfo, tree base_class,
+ vec<tree> *vtable_ptr_array)
+{
+ unsigned ix;
+ tree base_binfo;
+ tree vtable_decl;
+ bool already_registered;
+
+ if (binfo == NULL_TREE)
+ return;
+
+ for (ix = 0; BINFO_BASE_ITERATE (binfo, ix, base_binfo); ix++)
+ {
+ if ((!BINFO_PRIMARY_P (base_binfo)
+ || BINFO_VIRTUAL_P (base_binfo))
+ && (vtable_decl = get_vtbl_decl_for_binfo (base_binfo)))
+ {
+ tree vtable_address = build_vtbl_address (base_binfo);
+
+ already_registered = check_and_record_registered_pairs
+ (vtable_decl,
+ vtable_address,
+ base_class);
+ if (!already_registered)
+ {
+ vtable_ptr_array->safe_push (vtable_address);
+ current_set_size++;
+ }
+ }
+
+ register_other_binfo_vtables (base_binfo, base_class, vtable_ptr_array);
+ }
+}
+
+/* The set of valid vtable pointers for any given class are stored in
+ a hash table. For reasons of efficiency, that hash table size is
+ always a power of two. In order to try to prevent re-sizing the
+ hash tables very often, we pass __VLTRegisterPair an initial guess
+ as to the number of entries the hashtable will eventually need
+ (rounded up to the nearest power of two). This function takes the
+ class information we have collected for a particular class,
+ CLASS_NODE, and calculates the hash table size guess. */
+
+static int
+guess_num_vtable_pointers (struct vtv_graph_node *class_node)
+{
+ tree vtbl;
+ int total_num_vtbls = 0;
+ int num_vtbls_power_of_two = 1;
+ unsigned i;
+
+ for (i = 0; i < num_vtable_map_nodes; ++i)
+ if (bitmap_bit_p (class_node->descendants, i))
+ {
+ tree class_type = vtbl_map_nodes_vec[i]->class_info->class_type;
+ for (vtbl = CLASSTYPE_VTABLES (class_type); vtbl;
+ vtbl = DECL_CHAIN (vtbl))
+ {
+ total_num_vtbls++;
+ if (total_num_vtbls > num_vtbls_power_of_two)
+ num_vtbls_power_of_two <<= 1;
+ }
+ }
+ return num_vtbls_power_of_two;
+}
+
+/* A simple hash function on strings */
+/* Be careful about changing this routine. The values generated will
+ be stored in the calls to InitSet. So, changing this routine may
+ cause a binary incompatibility. */
+
+static uint32_t
+vtv_string_hash (const char *in)
+{
+ const char *s = in;
+ uint32_t h = 0;
+
+ gcc_assert (in != NULL);
+ for ( ; *s; ++s)
+ h = 5 * h + *s;
+ return h;
+}
+
+static char *
+get_log_file_name (const char *fname)
+{
+ const char *tmp_dir = concat (dump_dir_name, NULL);
+ char *full_name;
+ int dir_len;
+ int fname_len;
+
+ dir_len = strlen (tmp_dir);
+ fname_len = strlen (fname);
+
+ full_name = XNEWVEC (char, dir_len + fname_len + 1);
+ strcpy (full_name, tmp_dir);
+ strcpy (full_name + dir_len, fname);
+
+ return full_name;
+}
+
+static void
+write_out_current_set_data (tree base_class, int set_size)
+{
+ static int class_data_log_fd = -1;
+ char buffer[1024];
+ int bytes_written __attribute__ ((unused));
+ char *file_name = get_log_file_name ("vtv_class_set_sizes.log");
+
+ if (class_data_log_fd == -1)
+ class_data_log_fd = open (file_name,
+ O_WRONLY | O_APPEND | O_CREAT, S_IRWXU);
+
+ if (class_data_log_fd == -1)
+ {
+ warning_at (UNKNOWN_LOCATION, 0,
+ "unable to open log file %<vtv_class_set_sizes.log%>: %m");
+ return;
+ }
+
+ snprintf (buffer, sizeof (buffer), "%s %d\n",
+ IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (TYPE_NAME (base_class))),
+ set_size);
+ bytes_written = write (class_data_log_fd, buffer, strlen (buffer));
+}
+
+static tree
+build_key_buffer_arg (tree base_ptr_var_decl)
+{
+ const int key_type_fixed_size = 8;
+ uint32_t len1 = IDENTIFIER_LENGTH (DECL_NAME (base_ptr_var_decl));
+ uint32_t hash_value = vtv_string_hash (IDENTIFIER_POINTER
+ (DECL_NAME (base_ptr_var_decl)));
+ void *key_buffer = xmalloc (len1 + key_type_fixed_size);
+ uint32_t *value_ptr = (uint32_t *) key_buffer;
+ tree ret_value;
+
+ /* Set the len and hash for the string. */
+ *value_ptr = len1;
+ value_ptr++;
+ *value_ptr = hash_value;
+
+ /* Now copy the string representation of the vtbl map name... */
+ memcpy ((char *) key_buffer + key_type_fixed_size,
+ IDENTIFIER_POINTER (DECL_NAME (base_ptr_var_decl)),
+ len1);
+
+ /* ... and build a string literal from it. This will make a copy
+ so the key_bufffer is not needed anymore after this. */
+ ret_value = build_string_literal (len1 + key_type_fixed_size,
+ (char *) key_buffer);
+ free (key_buffer);
+ return ret_value;
+}
+
+static void
+insert_call_to_register_set (tree class_name,
+ vec<tree> *vtbl_ptr_array, tree body, tree arg1,
+ tree arg2, tree size_hint_arg)
+{
+ tree call_expr;
+ int num_args = vtbl_ptr_array->length();
+ char *array_arg_name = ACONCAT (("__vptr_array_",
+ IDENTIFIER_POINTER (class_name), NULL));
+ tree array_arg_type = build_array_type_nelts (build_pointer_type
+ (build_pointer_type
+ (void_type_node)),
+ num_args);
+ tree array_arg = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ get_identifier (array_arg_name),
+ array_arg_type);
+ int k;
+
+ vec<constructor_elt, va_gc> *array_elements;
+ vec_alloc (array_elements, num_args);
+
+ tree initial = NULL_TREE;
+ tree arg3 = NULL_TREE;
+
+ TREE_PUBLIC (array_arg) = 0;
+ DECL_EXTERNAL (array_arg) = 0;
+ TREE_STATIC (array_arg) = 1;
+ DECL_ARTIFICIAL (array_arg) = 0;
+ TREE_READONLY (array_arg) = 1;
+ DECL_IGNORED_P (array_arg) = 0;
+ DECL_PRESERVE_P (array_arg) = 0;
+ DECL_VISIBILITY (array_arg) = VISIBILITY_HIDDEN;
+
+ for (k = 0; k < num_args; ++k)
+ {
+ CONSTRUCTOR_APPEND_ELT (array_elements, NULL_TREE, (*vtbl_ptr_array)[k]);
+ }
+
+ initial = build_constructor (TREE_TYPE (array_arg), array_elements);
+
+ TREE_CONSTANT (initial) = 1;
+ TREE_STATIC (initial) = 1;
+ DECL_INITIAL (array_arg) = initial;
+ relayout_decl (array_arg);
+ varpool_node::finalize_decl (array_arg);
+
+ arg3 = build1 (ADDR_EXPR, TYPE_POINTER_TO (TREE_TYPE (array_arg)), array_arg);
+
+ TREE_TYPE (arg3) = build_pointer_type (TREE_TYPE (array_arg));
+
+ call_expr = build_call_expr (vlt_register_set_fndecl, 5, arg1,
+ arg2, /* set_symbol_key */
+ size_hint_arg, build_int_cst (size_type_node,
+ num_args),
+ arg3);
+ append_to_statement_list (call_expr, &body);
+ num_calls_to_regset++;
+}
+
+static void
+insert_call_to_register_pair (vec<tree> *vtbl_ptr_array, tree arg1,
+ tree arg2, tree size_hint_arg, tree str1,
+ tree str2, tree body)
+{
+ tree call_expr;
+ int num_args = vtbl_ptr_array->length();
+ tree vtable_address = NULL_TREE;
+
+ if (num_args == 0)
+ vtable_address = build_int_cst (build_pointer_type (void_type_node), 0);
+ else
+ vtable_address = (*vtbl_ptr_array)[0];
+
+ if (flag_vtv_debug)
+ call_expr = build_call_expr (vlt_register_pairs_fndecl, 6, arg1, arg2,
+ size_hint_arg, vtable_address, str1, str2);
+ else
+ call_expr = build_call_expr (vlt_register_pairs_fndecl, 4, arg1, arg2,
+ size_hint_arg, vtable_address);
+
+ append_to_statement_list (call_expr, &body);
+ num_calls_to_regpair++;
+}
+
+static void
+output_set_info (tree record_type, vec<tree> vtbl_ptr_array)
+{
+ static int vtv_debug_log_fd = -1;
+ char buffer[1024];
+ int bytes_written __attribute__ ((unused));
+ int array_len = vtbl_ptr_array.length();
+ const char *class_name =
+ IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (TYPE_NAME (record_type)));
+ char *file_name = get_log_file_name ("vtv_set_ptr_data.log");
+
+ if (vtv_debug_log_fd == -1)
+ vtv_debug_log_fd = open (file_name,
+ O_WRONLY | O_APPEND | O_CREAT, S_IRWXU);
+ if (vtv_debug_log_fd == -1)
+ {
+ warning_at (UNKNOWN_LOCATION, 0,
+ "unable to open log file %<vtv_set_ptr_data.log%>: %m");
+ return;
+ }
+
+ for (int i = 0; i < array_len; ++i)
+ {
+ const char *vptr_name = "unknown";
+ int vptr_offset = 0;
+
+ if (TREE_CODE (vtbl_ptr_array[i]) == POINTER_PLUS_EXPR)
+ {
+ tree arg0 = TREE_OPERAND (vtbl_ptr_array[i], 0);
+ tree arg1 = TREE_OPERAND (vtbl_ptr_array[i], 1);
+
+ if (TREE_CODE (arg0) == ADDR_EXPR)
+ arg0 = TREE_OPERAND (arg0, 0);
+
+ if (VAR_P (arg0))
+ vptr_name = IDENTIFIER_POINTER (DECL_NAME (arg0));
+
+ if (TREE_CODE (arg1) == INTEGER_CST)
+ vptr_offset = TREE_INT_CST_LOW (arg1);
+ }
+
+ snprintf (buffer, sizeof (buffer), "%s %s %s + %d\n",
+ main_input_filename, class_name, vptr_name, vptr_offset);
+ bytes_written = write (vtv_debug_log_fd, buffer, strlen(buffer));
+ }
+
+}
+
+/* This function goes through our internal class hierarchy & vtable
+ pointer data structure and outputs calls to __VLTRegisterPair for
+ every class-vptr pair (for those classes whose vtable would be
+ output in the current compilation unit). These calls get put into
+ our constructor initialization function. BODY is the function
+ body, so far, of our constructor initialization function, to which we
+ add the calls. */
+
+static bool
+register_all_pairs (tree body)
+{
+ bool registered_at_least_one = false;
+ vec<tree> *vtbl_ptr_array = NULL;
+ unsigned j;
+
+ for (j = 0; j < num_vtable_map_nodes; ++j)
+ {
+ struct vtbl_map_node *current = vtbl_map_nodes_vec[j];
+ unsigned i = 0;
+ tree base_class = current->class_info->class_type;
+ tree base_ptr_var_decl = current->vtbl_map_decl;
+ tree arg1;
+ tree arg2;
+ tree new_type;
+ tree str1 = NULL_TREE;
+ tree str2 = NULL_TREE;
+ size_t size_hint;
+ tree size_hint_arg;
+
+ gcc_assert (current->class_info != NULL);
+
+
+ if (flag_vtv_debug)
+ str1 = build_string_from_id (DECL_NAME (base_ptr_var_decl));
+
+ new_type = build_pointer_type (TREE_TYPE (base_ptr_var_decl));
+ arg1 = build1 (ADDR_EXPR, new_type, base_ptr_var_decl);
+
+ /* We need a fresh vector for each iteration. */
+ if (vtbl_ptr_array)
+ vec_free (vtbl_ptr_array);
+
+ vec_alloc (vtbl_ptr_array, 10);
+
+ for (i = 0; i < num_vtable_map_nodes; ++i)
+ if (bitmap_bit_p (current->class_info->descendants, i))
+ {
+ struct vtbl_map_node *vtbl_class_node = vtbl_map_nodes_vec[i];
+ tree class_type = vtbl_class_node->class_info->class_type;
+
+ if (class_type
+ && (TREE_CODE (class_type) == RECORD_TYPE))
+ {
+ bool already_registered;
+
+ tree binfo = TYPE_BINFO (class_type);
+ tree vtable_decl;
+ bool vtable_should_be_output = false;
+
+ vtable_decl = CLASSTYPE_VTABLES (class_type);
+
+ /* Handle main vtable for this class. */
+
+ if (vtable_decl)
+ {
+ vtable_should_be_output = TREE_ASM_WRITTEN (vtable_decl);
+ str2 = build_string_from_id (DECL_NAME (vtable_decl));
+ }
+
+ if (vtable_decl && vtable_should_be_output)
+ {
+ tree vtable_address = build_vtbl_address (binfo);
+
+ already_registered = check_and_record_registered_pairs
+ (vtable_decl,
+ vtable_address,
+ base_class);
+
+
+ if (!already_registered)
+ {
+ vtbl_ptr_array->safe_push (vtable_address);
+
+ /* Find and handle any 'extra' vtables associated
+ with this class, via virtual inheritance. */
+ register_construction_vtables (base_class, class_type,
+ vtbl_ptr_array);
+
+ /* Find and handle any 'extra' vtables associated
+ with this class, via multiple inheritance. */
+ register_other_binfo_vtables (binfo, base_class,
+ vtbl_ptr_array);
+ }
+ }
+ }
+ }
+ current_set_size = vtbl_ptr_array->length();
+
+ /* Sometimes we need to initialize the set symbol even if we are
+ not adding any vtable pointers to the set in the current
+ compilation unit. In that case, we need to initialize the
+ set to our best guess as to what the eventual size of the set
+ hash table will be (to prevent having to re-size the hash
+ table later). */
+
+ size_hint = guess_num_vtable_pointers (current->class_info);
+
+ /* If we have added vtable pointers to the set in this
+ compilation unit, adjust the size hint for the set's hash
+ table appropriately. */
+ if (vtbl_ptr_array->length() > 0)
+ {
+ unsigned len = vtbl_ptr_array->length();
+ while ((size_t) len > size_hint)
+ size_hint <<= 1;
+ }
+ size_hint_arg = build_int_cst (size_type_node, size_hint);
+
+ /* Get the key-buffer argument. */
+ arg2 = build_key_buffer_arg (base_ptr_var_decl);
+
+ if (str2 == NULL_TREE)
+ str2 = build_string_literal (strlen ("unknown") + 1,
+ "unknown");
+
+ if (flag_vtv_debug)
+ output_set_info (current->class_info->class_type,
+ *vtbl_ptr_array);
+
+ if (vtbl_ptr_array->length() > 1)
+ {
+ insert_call_to_register_set (current->class_name,
+ vtbl_ptr_array, body, arg1, arg2,
+ size_hint_arg);
+ registered_at_least_one = true;
+ }
+ else
+ {
+
+ if (vtbl_ptr_array->length() > 0
+ || (current->is_used
+ || (current->registered->size() > 0)))
+ {
+ insert_call_to_register_pair (vtbl_ptr_array,
+ arg1, arg2, size_hint_arg, str1,
+ str2, body);
+ registered_at_least_one = true;
+ }
+ }
+
+ if (flag_vtv_counts && current_set_size > 0)
+ write_out_current_set_data (base_class, current_set_size);
+
+ }
+
+ return registered_at_least_one;
+}
+
+/* Given a tree containing a class type (CLASS_TYPE), this function
+ finds and returns the class hierarchy node for that class in our
+ data structure. */
+
+static struct vtv_graph_node *
+find_graph_node (tree class_type)
+{
+ struct vtbl_map_node *vtbl_node;
+
+ vtbl_node = vtbl_map_get_node (TYPE_MAIN_VARIANT (class_type));
+ if (vtbl_node)
+ return vtbl_node->class_info;
+
+ return NULL;
+}
+
+/* Add base class/derived class pair to our internal class hierarchy
+ data structure. BASE_NODE is our vtv_graph_node that corresponds
+ to a base class. DERIVED_NODE is our vtv_graph_node that
+ corresponds to a class that is a descendant of the base class
+ (possibly the base class itself). */
+
+static void
+add_hierarchy_pair (struct vtv_graph_node *base_node,
+ struct vtv_graph_node *derived_node)
+{
+ (base_node->children).safe_push (derived_node);
+ (derived_node->parents).safe_push (base_node);
+}
+
+/* This functions adds a new base class/derived class relationship to
+ our class hierarchy data structure. Both parameters are trees
+ representing the class types, i.e. RECORD_TYPE trees.
+ DERIVED_CLASS can be the same as BASE_CLASS. */
+
+static void
+update_class_hierarchy_information (tree base_class,
+ tree derived_class)
+{
+ struct vtv_graph_node *base_node = find_graph_node (base_class);
+ struct vtv_graph_node *derived_node = find_graph_node (derived_class);
+
+ add_hierarchy_pair (base_node, derived_node);
+}
+
+
+static void
+write_out_vtv_count_data (void)
+{
+ static int vtv_count_log_fd = -1;
+ char buffer[1024];
+ int unused_vtbl_map_vars = 0;
+ int bytes_written __attribute__ ((unused));
+ char *file_name = get_log_file_name ("vtv_count_data.log");
+
+ if (vtv_count_log_fd == -1)
+ vtv_count_log_fd = open (file_name,
+ O_WRONLY | O_APPEND | O_CREAT, S_IRWXU);
+ if (vtv_count_log_fd == -1)
+ {
+ warning_at (UNKNOWN_LOCATION, 0,
+ "unable to open log file %<vtv_count_data.log%>: %m");
+ return;
+ }
+
+ for (unsigned i = 0; i < num_vtable_map_nodes; ++i)
+ {
+ struct vtbl_map_node *current = vtbl_map_nodes_vec[i];
+ if (!current->is_used
+ && current->registered->size() == 0)
+ unused_vtbl_map_vars++;
+ }
+
+ snprintf (buffer, sizeof (buffer), "%s %d %d %d %d %d\n",
+ main_input_filename, total_num_virtual_calls,
+ total_num_verified_vcalls, num_calls_to_regset,
+ num_calls_to_regpair, unused_vtbl_map_vars);
+
+ bytes_written = write (vtv_count_log_fd, buffer, strlen (buffer));
+}
+
+/* This function calls register_all_pairs, which actually generates
+ all the calls to __VLTRegisterPair (in the verification constructor
+ init function). It also generates the calls to
+ __VLTChangePermission, if the verification constructor init
+ function is going into the preinit array. INIT_ROUTINE_BODY is
+ the body of our constructior initialization function, to which we
+ add our function calls.*/
+
+bool
+vtv_register_class_hierarchy_information (tree init_routine_body)
+{
+ bool registered_something = false;
+
+ init_functions ();
+
+ if (num_vtable_map_nodes == 0)
+ return false;
+
+ /* Add class hierarchy pairs to the vtable map data structure. */
+ registered_something = register_all_pairs (init_routine_body);
+
+ if (flag_vtv_counts)
+ write_out_vtv_count_data ();
+
+ return registered_something;
+}
+
+
+/* Generate the special constructor function that calls
+ __VLTChangePermission and __VLTRegisterPairs, and give it a very
+ high initialization priority. */
+
+void
+vtv_generate_init_routine (void)
+{
+ tree init_routine_body;
+ bool vtable_classes_found = false;
+
+ push_lang_context (lang_name_c);
+
+ /* The priority for this init function (constructor) is carefully
+ chosen so that it will happen after the calls to unprotect the
+ memory used for vtable verification and before the memory is
+ protected again. */
+ init_routine_body = vtv_start_verification_constructor_init_function ();
+
+ vtable_classes_found =
+ vtv_register_class_hierarchy_information (init_routine_body);
+
+ if (vtable_classes_found)
+ {
+ tree vtv_fndecl =
+ vtv_finish_verification_constructor_init_function (init_routine_body);
+ TREE_STATIC (vtv_fndecl) = 1;
+ TREE_USED (vtv_fndecl) = 1;
+ DECL_PRESERVE_P (vtv_fndecl) = 1;
+ /* We are running too late to generate any meaningful debug information
+ for this routine. */
+ DECL_IGNORED_P (vtv_fndecl) = 1;
+ if (flag_vtable_verify == VTV_PREINIT_PRIORITY && !TARGET_PECOFF)
+ DECL_STATIC_CONSTRUCTOR (vtv_fndecl) = 0;
+
+ gimplify_function_tree (vtv_fndecl);
+ cgraph_node::add_new_function (vtv_fndecl, false);
+
+ if (flag_vtable_verify == VTV_PREINIT_PRIORITY && !TARGET_PECOFF)
+ assemble_vtv_preinit_initializer (vtv_fndecl);
+
+ }
+ pop_lang_context ();
+}
+
+/* This funtion takes a tree containing a class type (BASE_TYPE), and
+ it either finds the existing vtbl_map_node for that class in our
+ data structure, or it creates a new node and adds it to the data
+ structure if there is not one for the class already. As part of
+ this process it also creates the global vtable map variable for the
+ class. */
+
+struct vtbl_map_node *
+vtable_find_or_create_map_decl (tree base_type)
+{
+ char *var_name = NULL;
+ struct vtbl_map_node *vtable_map_node = NULL;
+
+ /* Verify the type has an associated vtable. */
+ if (!TYPE_BINFO (base_type) || !BINFO_VTABLE (TYPE_BINFO (base_type)))
+ return NULL;
+
+ /* Create map lookup symbol for base class */
+ var_name = get_mangled_vtable_map_var_name (base_type);
+
+ /* We've already created the variable; just look it. */
+ vtable_map_node = vtbl_map_get_node (TYPE_MAIN_VARIANT (base_type));
+
+ if (!vtable_map_node || (vtable_map_node->vtbl_map_decl == NULL_TREE))
+ {
+ /* If we haven't already created the *__vtable_map global
+ variable for this class, do so now, and add it to the
+ varpool, to make sure it gets saved and written out. */
+
+ tree var_decl = NULL;
+ tree var_type = build_pointer_type (void_type_node);
+ tree initial_value = integer_zero_node;
+
+ var_decl = build_decl (UNKNOWN_LOCATION, VAR_DECL,
+ get_identifier (var_name), var_type);
+
+ DECL_EXTERNAL (var_decl) = 0;
+ TREE_STATIC (var_decl) = 1;
+ DECL_VISIBILITY (var_decl) = VISIBILITY_HIDDEN;
+ SET_DECL_ASSEMBLER_NAME (var_decl, get_identifier (var_name));
+ DECL_ARTIFICIAL (var_decl) = 1;
+ /* We cannot mark this variable as read-only because we want to be
+ able to write to it at runtime. */
+ TREE_READONLY (var_decl) = 0;
+ DECL_IGNORED_P (var_decl) = 1;
+ DECL_PRESERVE_P (var_decl) = 1;
+
+ /* Put these mmap variables in thr .vtable_map_vars section, so
+ we can find and protect them. */
+
+ set_decl_section_name (var_decl, ".vtable_map_vars");
+ symtab_node::get (var_decl)->implicit_section = true;
+ DECL_INITIAL (var_decl) = initial_value;
+
+ comdat_linkage (var_decl);
+
+ varpool_node::finalize_decl (var_decl);
+ if (!vtable_map_node)
+ vtable_map_node =
+ find_or_create_vtbl_map_node (TYPE_MAIN_VARIANT (base_type));
+ if (vtable_map_node->vtbl_map_decl == NULL_TREE)
+ vtable_map_node->vtbl_map_decl = var_decl;
+ }
+
+ gcc_assert (vtable_map_node);
+ return vtable_map_node;
+}
+
+/* This function is used to build up our class hierarchy data for a
+ particular class. TYPE is the record_type tree node for the
+ class. */
+
+static void
+vtv_insert_single_class_info (tree type)
+{
+ if (flag_vtable_verify)
+ {
+ tree binfo = TYPE_BINFO (type);
+ tree base_binfo;
+ struct vtbl_map_node *own_map;
+ int i;
+
+ /* First make sure to create the map for this record type. */
+ own_map = vtable_find_or_create_map_decl (type);
+ if (own_map == NULL)
+ return;
+
+ /* Go through the list of all base classes for the current
+ (derived) type, make sure the *__vtable_map global variable
+ for the base class exists, and add the base class/derived
+ class pair to the class hierarchy information we are
+ accumulating (for vtable pointer verification). */
+ for (i = 0; BINFO_BASE_ITERATE (binfo, i, base_binfo); i++)
+ {
+ tree tree_val = BINFO_TYPE (base_binfo);
+ struct vtbl_map_node *vtable_map_node = NULL;
+
+ vtable_map_node = vtable_find_or_create_map_decl (tree_val);
+
+ if (vtable_map_node != NULL)
+ update_class_hierarchy_information (tree_val, type);
+ }
+ }
+}
+
+/* This function adds classes we are interested in to a list of
+ classes. RECORD is the record_type node for the class we are
+ adding to the list. */
+
+void
+vtv_save_class_info (tree record)
+{
+ if (!flag_vtable_verify || TREE_CODE (record) == UNION_TYPE)
+ return;
+
+ if (!vlt_saved_class_info)
+ vec_alloc (vlt_saved_class_info, 10);
+
+ gcc_assert (TREE_CODE (record) == RECORD_TYPE);
+
+ vec_safe_push (vlt_saved_class_info, record);
+}
+
+
+/* This function goes through the list of classes we saved and calls
+ vtv_insert_single_class_info on each one, to build up our class
+ hierarchy data structure. */
+
+void
+vtv_recover_class_info (void)
+{
+ tree current_class;
+ unsigned i;
+
+ if (vlt_saved_class_info)
+ {
+ for (i = 0; i < vlt_saved_class_info->length(); ++i)
+ {
+ current_class = (*vlt_saved_class_info)[i];
+ gcc_assert (TREE_CODE (current_class) == RECORD_TYPE);
+ vtv_insert_single_class_info (current_class);
+ }
+ }
+}
+
+#include "gt-cp-vtable-class-hierarchy.h"
generated by cgit v1.1 at 2025-08-19 13:25:21 +0000