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authornobody <>2002-09-07 00:00:05 +0000
committernobody <>2002-09-07 00:00:05 +0000
commitc1aa2a27e755c883b5c49b223120dfb712ea4e28 (patch)
treea98633075cd1f2b034b49446e83e522708d11f68 /gdb/dwarf2cfi.c
parent2e3c0e2427295c9cc09a8a707dfba38d50e2ba30 (diff)
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This commit was manufactured by cvs2svn to create branchsid-20020905-branchpointsid-20020905-branch
'sid-20020905-branch'. Sprout from gdb_5_3-branch 2002-09-03 22:29:15 UTC nobody 'This commit was manufactured by cvs2svn to create branch 'gdb_5_3-branch'.' Cherrypick from master 2002-09-07 00:00:04 UTC Alan Modra <amodra@gmail.com> 'daily update': bfd/ChangeLog bfd/config.bfd bfd/version.h include/ChangeLog include/dis-asm.h libiberty/ChangeLog libiberty/regex.c opcodes/ChangeLog opcodes/disassemble.c opcodes/ppc-dis.c opcodes/ppc-opc.c Delete: djunpack.bat gdb/CONTRIBUTE gdb/COPYING gdb/ChangeLog gdb/ChangeLog-1990 gdb/ChangeLog-1991 gdb/ChangeLog-1992 gdb/ChangeLog-1993 gdb/ChangeLog-1994 gdb/ChangeLog-1995 gdb/ChangeLog-1996 gdb/ChangeLog-1997 gdb/ChangeLog-1998 gdb/ChangeLog-1999 gdb/ChangeLog-2000 gdb/ChangeLog-2001 gdb/ChangeLog-3.x gdb/MAINTAINERS gdb/Makefile.in gdb/NEWS gdb/PROBLEMS gdb/README gdb/TODO gdb/a68v-nat.c gdb/abug-rom.c gdb/acconfig.h gdb/acinclude.m4 gdb/aclocal.m4 gdb/ada-exp.y gdb/ada-lang.c gdb/ada-lang.h gdb/ada-lex.l gdb/ada-tasks.c gdb/ada-typeprint.c gdb/ada-valprint.c gdb/aix-thread.c gdb/alpha-linux-tdep.c gdb/alpha-nat.c gdb/alpha-osf1-tdep.c gdb/alpha-tdep.c gdb/alpha-tdep.h gdb/alphabsd-nat.c gdb/alphabsd-tdep.c gdb/alphabsd-tdep.h gdb/alphafbsd-tdep.c gdb/alphanbsd-tdep.c gdb/annotate.c gdb/annotate.h gdb/arc-tdep.c gdb/arch-utils.c gdb/arch-utils.h gdb/arm-linux-nat.c gdb/arm-linux-tdep.c gdb/arm-tdep.c gdb/arm-tdep.h gdb/armnbsd-nat.c gdb/armnbsd-tdep.c gdb/avr-tdep.c gdb/ax-gdb.c gdb/ax-gdb.h gdb/ax-general.c gdb/ax.h gdb/bcache.c gdb/bcache.h gdb/blockframe.c gdb/breakpoint.c gdb/breakpoint.h gdb/buildsym.c gdb/buildsym.h gdb/builtin-regs.c gdb/builtin-regs.h gdb/c-exp.y gdb/c-lang.c gdb/c-lang.h gdb/c-typeprint.c gdb/c-valprint.c gdb/call-cmds.h gdb/ch-exp.c gdb/ch-lang.c gdb/ch-lang.h gdb/ch-typeprint.c gdb/ch-valprint.c gdb/cli-out.c gdb/cli-out.h gdb/cli/cli-cmds.c gdb/cli/cli-cmds.h gdb/cli/cli-decode.c gdb/cli/cli-decode.h gdb/cli/cli-dump.c gdb/cli/cli-dump.h gdb/cli/cli-script.c gdb/cli/cli-script.h gdb/cli/cli-setshow.c gdb/cli/cli-setshow.h gdb/cli/cli-utils.c gdb/cli/cli-utils.h gdb/coff-solib.c gdb/coff-solib.h gdb/coffread.c gdb/command.h gdb/complaints.c gdb/complaints.h gdb/completer.c gdb/completer.h gdb/config.in gdb/config/alpha/alpha-linux.mh gdb/config/alpha/alpha-linux.mt gdb/config/alpha/alpha-osf1.mh gdb/config/alpha/alpha-osf1.mt gdb/config/alpha/alpha-osf2.mh gdb/config/alpha/alpha-osf3.mh gdb/config/alpha/alpha.mt gdb/config/alpha/fbsd.mh gdb/config/alpha/fbsd.mt gdb/config/alpha/nbsd.mh gdb/config/alpha/nbsd.mt gdb/config/alpha/nm-fbsd.h gdb/config/alpha/nm-linux.h gdb/config/alpha/nm-nbsd.h gdb/config/alpha/nm-osf.h gdb/config/alpha/nm-osf2.h gdb/config/alpha/nm-osf3.h gdb/config/alpha/tm-alpha.h gdb/config/alpha/tm-alphalinux.h gdb/config/alpha/tm-fbsd.h gdb/config/alpha/tm-nbsd.h gdb/config/alpha/xm-alphalinux.h gdb/config/alpha/xm-alphaosf.h gdb/config/arc/arc.mt gdb/config/arc/tm-arc.h gdb/config/arm/embed.mt gdb/config/arm/linux.mh gdb/config/arm/linux.mt gdb/config/arm/nbsd.mt gdb/config/arm/nbsdaout.mh gdb/config/arm/nbsdelf.mh gdb/config/arm/nm-linux.h gdb/config/arm/nm-nbsd.h gdb/config/arm/nm-nbsdaout.h gdb/config/arm/tm-arm.h gdb/config/arm/tm-embed.h gdb/config/arm/tm-linux.h gdb/config/arm/tm-wince.h gdb/config/arm/wince.mt gdb/config/arm/xm-linux.h gdb/config/arm/xm-nbsd.h gdb/config/avr/avr.mt gdb/config/cris/cris.mt gdb/config/cris/tm-cris.h gdb/config/d10v/d10v.mt gdb/config/d30v/d30v.mt gdb/config/d30v/tm-d30v.h gdb/config/djgpp/README gdb/config/djgpp/config.sed gdb/config/djgpp/djcheck.sh gdb/config/djgpp/djconfig.sh gdb/config/djgpp/fnchange.lst gdb/config/fr30/fr30.mt gdb/config/fr30/tm-fr30.h gdb/config/frv/frv.mt gdb/config/frv/tm-frv.h gdb/config/h8300/h8300.mt gdb/config/h8300/tm-h8300.h gdb/config/h8500/h8500.mt gdb/config/h8500/tm-h8500.h gdb/config/i386/cygwin.mh gdb/config/i386/cygwin.mt gdb/config/i386/embed.mt gdb/config/i386/fbsd.mh gdb/config/i386/fbsd.mt gdb/config/i386/gdbserve.mt gdb/config/i386/go32.mh gdb/config/i386/go32.mt gdb/config/i386/i386aix.mh gdb/config/i386/i386aix.mt gdb/config/i386/i386aout.mt gdb/config/i386/i386bsd.mh gdb/config/i386/i386bsd.mt gdb/config/i386/i386dgux.mh gdb/config/i386/i386gnu.mh gdb/config/i386/i386gnu.mt gdb/config/i386/i386lynx.mh gdb/config/i386/i386lynx.mt gdb/config/i386/i386m3.mh gdb/config/i386/i386m3.mt gdb/config/i386/i386mach.mh gdb/config/i386/i386mk.mh gdb/config/i386/i386mk.mt gdb/config/i386/i386nw.mt gdb/config/i386/i386os9k.mt gdb/config/i386/i386sco.mh gdb/config/i386/i386sco4.mh gdb/config/i386/i386sco5.mh gdb/config/i386/i386sco5.mt gdb/config/i386/i386sol2.mh gdb/config/i386/i386sol2.mt gdb/config/i386/i386v.mh gdb/config/i386/i386v.mt gdb/config/i386/i386v32.mh gdb/config/i386/i386v4.mh gdb/config/i386/i386v4.mt gdb/config/i386/i386v42mp.mh gdb/config/i386/i386v42mp.mt gdb/config/i386/linux.mh gdb/config/i386/linux.mt gdb/config/i386/nbsd.mt gdb/config/i386/nbsdaout.mh gdb/config/i386/nbsdelf.mh gdb/config/i386/ncr3000.mh gdb/config/i386/ncr3000.mt gdb/config/i386/nm-cygwin.h gdb/config/i386/nm-fbsd.h gdb/config/i386/nm-go32.h gdb/config/i386/nm-i386.h gdb/config/i386/nm-i386aix.h gdb/config/i386/nm-i386bsd.h gdb/config/i386/nm-i386gnu.h gdb/config/i386/nm-i386lynx.h gdb/config/i386/nm-i386mach.h gdb/config/i386/nm-i386sco.h gdb/config/i386/nm-i386sco4.h gdb/config/i386/nm-i386sco5.h gdb/config/i386/nm-i386sol2.h gdb/config/i386/nm-i386v.h gdb/config/i386/nm-i386v4.h gdb/config/i386/nm-i386v42mp.h gdb/config/i386/nm-linux.h gdb/config/i386/nm-m3.h gdb/config/i386/nm-nbsd.h gdb/config/i386/nm-nbsdaout.h gdb/config/i386/nm-obsd.h gdb/config/i386/nm-ptx4.h gdb/config/i386/nm-symmetry.h gdb/config/i386/nm-x86-64linux.h gdb/config/i386/obsd.mh gdb/config/i386/ptx.mh gdb/config/i386/ptx.mt gdb/config/i386/ptx4.mh gdb/config/i386/ptx4.mt gdb/config/i386/symmetry.mh gdb/config/i386/symmetry.mt gdb/config/i386/tm-cygwin.h gdb/config/i386/tm-fbsd.h gdb/config/i386/tm-go32.h gdb/config/i386/tm-i386.h gdb/config/i386/tm-i386aix.h gdb/config/i386/tm-i386bsd.h gdb/config/i386/tm-i386lynx.h gdb/config/i386/tm-i386m3.h gdb/config/i386/tm-i386mk.h gdb/config/i386/tm-i386os9k.h gdb/config/i386/tm-i386sol2.h gdb/config/i386/tm-i386v4.h gdb/config/i386/tm-i386v42mp.h gdb/config/i386/tm-linux.h gdb/config/i386/tm-nbsd.h gdb/config/i386/tm-ptx.h gdb/config/i386/tm-ptx4.h gdb/config/i386/tm-symmetry.h gdb/config/i386/tm-vxworks.h gdb/config/i386/tm-x86-64linux.h gdb/config/i386/vxworks.mt gdb/config/i386/x86-64linux.mh gdb/config/i386/x86-64linux.mt gdb/config/i386/xm-cygwin.h gdb/config/i386/xm-go32.h gdb/config/i386/xm-i386.h gdb/config/i386/xm-i386aix.h gdb/config/i386/xm-i386bsd.h gdb/config/i386/xm-i386m3.h gdb/config/i386/xm-i386mach.h gdb/config/i386/xm-i386mk.h gdb/config/i386/xm-i386sco.h gdb/config/i386/xm-i386v.h gdb/config/i386/xm-i386v32.h gdb/config/i386/xm-i386v4.h gdb/config/i386/xm-nbsd.h gdb/config/i386/xm-ptx.h gdb/config/i386/xm-ptx4.h gdb/config/i386/xm-symmetry.h gdb/config/i960/mon960.mt gdb/config/i960/nindy960.mt gdb/config/i960/tm-i960.h gdb/config/i960/tm-mon960.h gdb/config/i960/tm-nindy960.h gdb/config/i960/tm-vx960.h gdb/config/i960/vxworks960.mt gdb/config/ia64/aix.mh gdb/config/ia64/aix.mt gdb/config/ia64/ia64.mt gdb/config/ia64/linux.mh gdb/config/ia64/linux.mt gdb/config/ia64/nm-aix.h gdb/config/ia64/nm-linux.h gdb/config/ia64/tm-aix.h gdb/config/ia64/tm-ia64.h gdb/config/ia64/tm-linux.h gdb/config/ia64/xm-aix.h gdb/config/ia64/xm-linux.h gdb/config/m32r/m32r.mt gdb/config/m32r/tm-m32r.h gdb/config/m68hc11/m68hc11.mt gdb/config/m68k/3b1.mh gdb/config/m68k/3b1.mt gdb/config/m68k/apollo68b.mh gdb/config/m68k/apollo68b.mt gdb/config/m68k/apollo68v.mh gdb/config/m68k/cisco.mt gdb/config/m68k/delta68.mh gdb/config/m68k/delta68.mt gdb/config/m68k/dpx2.mh gdb/config/m68k/dpx2.mt gdb/config/m68k/es1800.mt gdb/config/m68k/hp300bsd.mh gdb/config/m68k/hp300bsd.mt gdb/config/m68k/hp300hpux.mh gdb/config/m68k/hp300hpux.mt gdb/config/m68k/linux.mh gdb/config/m68k/linux.mt gdb/config/m68k/m68klynx.mh gdb/config/m68k/m68klynx.mt gdb/config/m68k/m68kv4.mh gdb/config/m68k/m68kv4.mt gdb/config/m68k/monitor.mt gdb/config/m68k/nbsdaout.mh gdb/config/m68k/nbsdaout.mt gdb/config/m68k/nm-apollo68b.h gdb/config/m68k/nm-apollo68v.h gdb/config/m68k/nm-delta68.h gdb/config/m68k/nm-dpx2.h gdb/config/m68k/nm-hp300bsd.h gdb/config/m68k/nm-hp300hpux.h gdb/config/m68k/nm-linux.h gdb/config/m68k/nm-m68klynx.h gdb/config/m68k/nm-nbsd.h gdb/config/m68k/nm-nbsdaout.h gdb/config/m68k/nm-sun2.h gdb/config/m68k/nm-sun3.h gdb/config/m68k/nm-sysv4.h gdb/config/m68k/os68k.mt gdb/config/m68k/st2000.mt gdb/config/m68k/sun2os3.mh gdb/config/m68k/sun2os3.mt gdb/config/m68k/sun2os4.mh gdb/config/m68k/sun2os4.mt gdb/config/m68k/sun3os3.mh gdb/config/m68k/sun3os3.mt gdb/config/m68k/sun3os4.mh gdb/config/m68k/sun3os4.mt gdb/config/m68k/tm-3b1.h gdb/config/m68k/tm-apollo68b.h gdb/config/m68k/tm-cisco.h gdb/config/m68k/tm-delta68.h gdb/config/m68k/tm-dpx2.h gdb/config/m68k/tm-es1800.h gdb/config/m68k/tm-hp300bsd.h gdb/config/m68k/tm-hp300hpux.h gdb/config/m68k/tm-linux.h gdb/config/m68k/tm-m68k.h gdb/config/m68k/tm-m68klynx.h gdb/config/m68k/tm-m68kv4.h gdb/config/m68k/tm-mac.h gdb/config/m68k/tm-monitor.h gdb/config/m68k/tm-nbsd.h gdb/config/m68k/tm-os68k.h gdb/config/m68k/tm-st2000.h gdb/config/m68k/tm-sun2.h gdb/config/m68k/tm-sun2os4.h gdb/config/m68k/tm-sun3.h gdb/config/m68k/tm-sun3os4.h gdb/config/m68k/tm-vx68.h gdb/config/m68k/vxworks68.mt gdb/config/m68k/xm-3b1.h gdb/config/m68k/xm-apollo68b.h gdb/config/m68k/xm-apollo68v.h gdb/config/m68k/xm-delta68.h gdb/config/m68k/xm-dpx2.h gdb/config/m68k/xm-hp300bsd.h gdb/config/m68k/xm-hp300hpux.h gdb/config/m68k/xm-linux.h gdb/config/m68k/xm-m68k.h gdb/config/m68k/xm-m68kv4.h gdb/config/m68k/xm-nbsd.h gdb/config/m68k/xm-sun2.h gdb/config/m68k/xm-sun3.h gdb/config/m68k/xm-sun3os4.h gdb/config/m88k/delta88.mh gdb/config/m88k/delta88.mt gdb/config/m88k/delta88v4.mh gdb/config/m88k/delta88v4.mt gdb/config/m88k/m88k.mh gdb/config/m88k/m88k.mt gdb/config/m88k/nm-delta88v4.h gdb/config/m88k/nm-m88k.h gdb/config/m88k/tm-delta88.h gdb/config/m88k/tm-delta88v4.h gdb/config/m88k/tm-m88k.h gdb/config/m88k/xm-delta88.h gdb/config/m88k/xm-delta88v4.h gdb/config/m88k/xm-dgux.h gdb/config/mcore/mcore.mt gdb/config/mips/bigmips.mt gdb/config/mips/bigmips64.mt gdb/config/mips/decstation.mh gdb/config/mips/decstation.mt gdb/config/mips/embed.mt gdb/config/mips/embed64.mt gdb/config/mips/embedl.mt gdb/config/mips/embedl64.mt gdb/config/mips/irix3.mh gdb/config/mips/irix3.mt gdb/config/mips/irix4.mh gdb/config/mips/irix5.mh gdb/config/mips/irix5.mt gdb/config/mips/irix6.mh gdb/config/mips/irix6.mt gdb/config/mips/linux.mh gdb/config/mips/linux.mt gdb/config/mips/littlemips.mh gdb/config/mips/littlemips.mt gdb/config/mips/mipsm3.mh gdb/config/mips/mipsm3.mt gdb/config/mips/mipsv4.mh gdb/config/mips/mipsv4.mt gdb/config/mips/nbsd.mh gdb/config/mips/nbsd.mt gdb/config/mips/news-mips.mh gdb/config/mips/nm-irix3.h gdb/config/mips/nm-irix4.h gdb/config/mips/nm-irix5.h gdb/config/mips/nm-irix6.h gdb/config/mips/nm-linux.h gdb/config/mips/nm-mips.h gdb/config/mips/nm-nbsd.h gdb/config/mips/nm-news-mips.h gdb/config/mips/nm-riscos.h gdb/config/mips/riscos.mh gdb/config/mips/tm-bigmips.h gdb/config/mips/tm-bigmips64.h gdb/config/mips/tm-embed.h gdb/config/mips/tm-embed64.h gdb/config/mips/tm-embedl.h gdb/config/mips/tm-embedl64.h gdb/config/mips/tm-irix3.h gdb/config/mips/tm-irix5.h gdb/config/mips/tm-irix6.h gdb/config/mips/tm-linux.h gdb/config/mips/tm-mips.h gdb/config/mips/tm-mips64.h gdb/config/mips/tm-mipsm3.h gdb/config/mips/tm-mipsv4.h gdb/config/mips/tm-nbsd.h gdb/config/mips/tm-tx39.h gdb/config/mips/tm-tx39l.h gdb/config/mips/tm-vr4100.h gdb/config/mips/tm-vr4300.h gdb/config/mips/tm-vr4300el.h gdb/config/mips/tm-vr4xxx.h gdb/config/mips/tm-vr4xxxel.h gdb/config/mips/tm-vr5000.h gdb/config/mips/tm-vr5000el.h gdb/config/mips/tm-vxmips.h gdb/config/mips/tm-wince.h gdb/config/mips/tx39.mt gdb/config/mips/tx39l.mt gdb/config/mips/vr4100.mt gdb/config/mips/vr4300.mt gdb/config/mips/vr4300el.mt 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readline/config.h.bot readline/config.h.in readline/configure readline/configure.in readline/cross-build/cygwin.cache readline/display.c readline/doc/ChangeLog.gdb readline/doc/Makefile.in readline/doc/hist.texinfo readline/doc/hstech.texinfo readline/doc/hsuser.texinfo readline/doc/inc-hist.texinfo readline/doc/manvers.texinfo readline/doc/readline.3 readline/doc/rlman.texinfo readline/doc/rltech.texinfo readline/doc/rluser.texinfo readline/doc/rluserman.texinfo readline/doc/texi2dvi readline/doc/texi2html readline/emacs_keymap.c readline/examples/ChangeLog.gdb readline/examples/Inputrc readline/examples/Makefile.in readline/examples/excallback.c readline/examples/fileman.c readline/examples/histexamp.c readline/examples/manexamp.c readline/examples/rl.c readline/examples/rlfe.c readline/examples/rltest.c readline/examples/rlversion.c readline/funmap.c readline/histexpand.c readline/histfile.c readline/histlib.h readline/history.c readline/history.h readline/histsearch.c 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sim/testsuite/sim/m32r/ldh-d.cgs sim/testsuite/sim/m32r/ldh.cgs sim/testsuite/sim/m32r/ldi16.cgs sim/testsuite/sim/m32r/ldi8.cgs sim/testsuite/sim/m32r/ldub-d.cgs sim/testsuite/sim/m32r/ldub.cgs sim/testsuite/sim/m32r/lduh-d.cgs sim/testsuite/sim/m32r/lduh.cgs sim/testsuite/sim/m32r/lock.cgs sim/testsuite/sim/m32r/machi.cgs sim/testsuite/sim/m32r/maclo.cgs sim/testsuite/sim/m32r/macwhi.cgs sim/testsuite/sim/m32r/macwlo.cgs sim/testsuite/sim/m32r/misc.exp sim/testsuite/sim/m32r/mul.cgs sim/testsuite/sim/m32r/mulhi.cgs sim/testsuite/sim/m32r/mullo.cgs sim/testsuite/sim/m32r/mulwhi.cgs sim/testsuite/sim/m32r/mulwlo.cgs sim/testsuite/sim/m32r/mv.cgs sim/testsuite/sim/m32r/mvfachi.cgs sim/testsuite/sim/m32r/mvfaclo.cgs sim/testsuite/sim/m32r/mvfacmi.cgs sim/testsuite/sim/m32r/mvfc.cgs sim/testsuite/sim/m32r/mvtachi.cgs sim/testsuite/sim/m32r/mvtaclo.cgs sim/testsuite/sim/m32r/mvtc.cgs sim/testsuite/sim/m32r/neg.cgs sim/testsuite/sim/m32r/nop.cgs sim/testsuite/sim/m32r/not.cgs sim/testsuite/sim/m32r/or.cgs sim/testsuite/sim/m32r/or3.cgs sim/testsuite/sim/m32r/rac.cgs sim/testsuite/sim/m32r/rach.cgs sim/testsuite/sim/m32r/rem.cgs sim/testsuite/sim/m32r/remu.cgs sim/testsuite/sim/m32r/rte.cgs sim/testsuite/sim/m32r/seth.cgs sim/testsuite/sim/m32r/sll.cgs sim/testsuite/sim/m32r/sll3.cgs sim/testsuite/sim/m32r/slli.cgs sim/testsuite/sim/m32r/sra.cgs sim/testsuite/sim/m32r/sra3.cgs sim/testsuite/sim/m32r/srai.cgs sim/testsuite/sim/m32r/srl.cgs sim/testsuite/sim/m32r/srl3.cgs sim/testsuite/sim/m32r/srli.cgs sim/testsuite/sim/m32r/st-d.cgs sim/testsuite/sim/m32r/st-minus.cgs sim/testsuite/sim/m32r/st-plus.cgs sim/testsuite/sim/m32r/st.cgs sim/testsuite/sim/m32r/stb-d.cgs sim/testsuite/sim/m32r/stb.cgs sim/testsuite/sim/m32r/sth-d.cgs sim/testsuite/sim/m32r/sth.cgs sim/testsuite/sim/m32r/sub.cgs sim/testsuite/sim/m32r/subv.cgs sim/testsuite/sim/m32r/subx.cgs sim/testsuite/sim/m32r/testutils.inc sim/testsuite/sim/m32r/trap.cgs sim/testsuite/sim/m32r/unlock.cgs sim/testsuite/sim/m32r/uread16.ms sim/testsuite/sim/m32r/uread32.ms sim/testsuite/sim/m32r/uwrite16.ms sim/testsuite/sim/m32r/uwrite32.ms sim/testsuite/sim/m32r/xor.cgs sim/testsuite/sim/m32r/xor3.cgs sim/v850/ChangeLog sim/v850/Makefile.in sim/v850/acconfig.h sim/v850/config.in sim/v850/configure sim/v850/configure.in sim/v850/interp.c sim/v850/sim-main.h sim/v850/simops.c sim/v850/simops.h sim/v850/v850-dc sim/v850/v850.igen sim/v850/v850_sim.h sim/z8k/ChangeLog sim/z8k/Makefile.in sim/z8k/acconfig.h sim/z8k/comped1.c sim/z8k/comped2.c sim/z8k/comped3.c sim/z8k/compedb3.c sim/z8k/config.in sim/z8k/configure sim/z8k/configure.in sim/z8k/iface.c sim/z8k/inlines.h sim/z8k/mem.c sim/z8k/mem.h sim/z8k/quick.c sim/z8k/sim.h sim/z8k/support.c sim/z8k/syscall.h sim/z8k/tconfig.in sim/z8k/tm.h sim/z8k/writecode.c texinfo/texinfo.tex
Diffstat (limited to 'gdb/dwarf2cfi.c')
-rw-r--r--gdb/dwarf2cfi.c1954
1 files changed, 0 insertions, 1954 deletions
diff --git a/gdb/dwarf2cfi.c b/gdb/dwarf2cfi.c
deleted file mode 100644
index 18782b1..0000000
--- a/gdb/dwarf2cfi.c
+++ /dev/null
@@ -1,1954 +0,0 @@
-/* Stack unwinding code based on dwarf2 frame info for GDB, the GNU debugger.
- Copyright 2001, 2002 Free Software Foundation, Inc.
- Contributed by Jiri Smid, SuSE Labs.
- Based on code written by Daniel Berlin (dan@dberlin.org).
-
- This file is part of GDB.
-
- This program 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 2 of the License, or
- (at your option) any later version.
-
- This program 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 this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include "defs.h"
-#include "gdbcore.h"
-#include "symtab.h"
-#include "symfile.h"
-#include "objfiles.h"
-#include "target.h"
-#include "elf/dwarf2.h"
-#include "inferior.h"
-#include "regcache.h"
-#include "dwarf2cfi.h"
-#include "gdb_assert.h"
-
-/* Common Information Entry - holds information that is shared among many
- Frame Descriptors. */
-struct cie_unit
-{
- /* Offset of this unit in .debug_frame or .eh_frame. */
- ULONGEST offset;
-
- /* A null-terminated string that identifies the augmentation to this CIE or
- to the FDEs that use it. */
- char *augmentation;
-
- /* A constant that is factored out of all advance location instructions. */
- unsigned int code_align;
-
- /* A constant that is factored out of all offset instructions. */
- int data_align;
-
- /* A constant that indicates which regiter represents the return address
- of a function. */
- unsigned char ra;
-
- /* Indicates how addresses are encoded. */
- unsigned char addr_encoding;
-
- /* Pointer and length of the cie program. */
- char *data;
- unsigned int data_length;
-
- struct objfile *objfile;
-
- /* Next in chain. */
- struct cie_unit *next;
-};
-
-/* Frame Description Entry. */
-struct fde_unit
-{
- /* Address of the first location associated with this entry. */
- CORE_ADDR initial_location;
-
- /* Length of program section described by this entry. */
- CORE_ADDR address_range;
-
- /* Pointer to asociated CIE. */
- struct cie_unit *cie_ptr;
-
- /* Pointer and length of the cie program. */
- char *data;
- unsigned int data_length;
-};
-
-struct fde_array
-{
- struct fde_unit **array;
- int elems;
- int array_size;
-};
-
-struct context_reg
-{
- union
- {
- unsigned int reg;
- long offset;
- CORE_ADDR addr;
- }
- loc;
- enum
- {
- REG_CTX_UNSAVED,
- REG_CTX_SAVED_OFFSET,
- REG_CTX_SAVED_REG,
- REG_CTX_SAVED_ADDR,
- REG_CTX_VALUE,
- }
- how;
-};
-
-/* This is the register and unwind state for a particular frame. */
-struct context
-{
- struct context_reg *reg;
-
- CORE_ADDR cfa;
- CORE_ADDR ra;
- void *lsda;
- int args_size;
-};
-
-struct frame_state_reg
-{
- union
- {
- unsigned int reg;
- long offset;
- unsigned char *exp;
- }
- loc;
- enum
- {
- REG_UNSAVED,
- REG_SAVED_OFFSET,
- REG_SAVED_REG,
- REG_SAVED_EXP,
- }
- how;
-};
-
-struct frame_state
-{
- /* Each register save state can be described in terms of a CFA slot,
- another register, or a location expression. */
- struct frame_state_regs
- {
- struct frame_state_reg *reg;
-
- /* Used to implement DW_CFA_remember_state. */
- struct frame_state_regs *prev;
- }
- regs;
-
- /* The CFA can be described in terms of a reg+offset or a
- location expression. */
- long cfa_offset;
- int cfa_reg;
- unsigned char *cfa_exp;
- enum
- {
- CFA_UNSET,
- CFA_REG_OFFSET,
- CFA_EXP,
- }
- cfa_how;
-
- /* The PC described by the current frame state. */
- CORE_ADDR pc;
-
- /* The information we care about from the CIE/FDE. */
- int data_align;
- unsigned int code_align;
- unsigned char retaddr_column;
- unsigned char addr_encoding;
-
- struct objfile *objfile;
-};
-
-enum ptr_encoding
-{
- PE_absptr = DW_EH_PE_absptr,
- PE_pcrel = DW_EH_PE_pcrel,
- PE_textrel = DW_EH_PE_textrel,
- PE_datarel = DW_EH_PE_datarel,
- PE_funcrel = DW_EH_PE_funcrel
-};
-
-#define UNWIND_CONTEXT(fi) ((struct context *) (fi->context))
-
-
-static struct cie_unit *cie_chunks;
-static struct fde_array fde_chunks;
-/* Obstack for allocating temporary storage used during unwind operations. */
-static struct obstack unwind_tmp_obstack;
-
-extern file_ptr dwarf_frame_offset;
-extern unsigned int dwarf_frame_size;
-extern file_ptr dwarf_eh_frame_offset;
-extern unsigned int dwarf_eh_frame_size;
-
-
-extern char *dwarf2_read_section (struct objfile *objfile, file_ptr offset,
- unsigned int size);
-
-static struct fde_unit *fde_unit_alloc (void);
-static struct cie_unit *cie_unit_alloc (void);
-static void fde_chunks_need_space ();
-
-static struct context *context_alloc ();
-static struct frame_state *frame_state_alloc ();
-static void unwind_tmp_obstack_init ();
-static void unwind_tmp_obstack_free ();
-static void context_cpy (struct context *dst, struct context *src);
-
-static unsigned int read_1u (bfd * abfd, char **p);
-static int read_1s (bfd * abfd, char **p);
-static unsigned int read_2u (bfd * abfd, char **p);
-static int read_2s (bfd * abfd, char **p);
-static unsigned int read_4u (bfd * abfd, char **p);
-static int read_4s (bfd * abfd, char **p);
-static ULONGEST read_8u (bfd * abfd, char **p);
-static LONGEST read_8s (bfd * abfd, char **p);
-
-static ULONGEST read_uleb128 (bfd * abfd, char **p);
-static LONGEST read_sleb128 (bfd * abfd, char **p);
-static CORE_ADDR read_pointer (bfd * abfd, char **p);
-static CORE_ADDR read_encoded_pointer (bfd * abfd, char **p,
- unsigned char encoding);
-static enum ptr_encoding pointer_encoding (unsigned char encoding);
-
-static LONGEST read_initial_length (bfd * abfd, char *buf, int *bytes_read);
-static ULONGEST read_length (bfd * abfd, char *buf, int *bytes_read,
- int dwarf64);
-
-static int is_cie (ULONGEST cie_id, int dwarf64);
-static int compare_fde_unit (const void *a, const void *b);
-void dwarf2_build_frame_info (struct objfile *objfile);
-
-static void execute_cfa_program (struct objfile *objfile, char *insn_ptr,
- char *insn_end, struct context *context,
- struct frame_state *fs);
-static struct fde_unit *get_fde_for_addr (CORE_ADDR pc);
-static void frame_state_for (struct context *context, struct frame_state *fs);
-static void get_reg (char *reg, struct context *context, int regnum);
-static CORE_ADDR execute_stack_op (struct objfile *objfile,
- char *op_ptr, char *op_end,
- struct context *context,
- CORE_ADDR initial);
-static void update_context (struct context *context, struct frame_state *fs,
- int chain);
-
-
-/* Memory allocation functions. */
-static struct fde_unit *
-fde_unit_alloc (void)
-{
- struct fde_unit *fde;
-
- fde = (struct fde_unit *) xmalloc (sizeof (struct fde_unit));
- memset (fde, 0, sizeof (struct fde_unit));
- return fde;
-}
-
-static struct cie_unit *
-cie_unit_alloc (void)
-{
- struct cie_unit *cie;
-
- cie = (struct cie_unit *) xmalloc (sizeof (struct cie_unit));
- memset (cie, 0, sizeof (struct cie_unit));
- return cie;
-}
-
-static void
-fde_chunks_need_space (void)
-{
- if (fde_chunks.elems < fde_chunks.array_size)
- return;
- fde_chunks.array_size =
- fde_chunks.array_size ? 2 * fde_chunks.array_size : 1024;
- fde_chunks.array =
- xrealloc (fde_chunks.array,
- sizeof (struct fde_unit) * fde_chunks.array_size);
-}
-
-/* Alocate a new `struct context' on temporary obstack. */
-static struct context *
-context_alloc (void)
-{
- struct context *context;
-
- int regs_size = sizeof (struct context_reg) * NUM_REGS;
-
- context = (struct context *) obstack_alloc (&unwind_tmp_obstack,
- sizeof (struct context));
- memset (context, 0, sizeof (struct context));
- context->reg = (struct context_reg *) obstack_alloc (&unwind_tmp_obstack,
- regs_size);
- memset (context->reg, 0, regs_size);
- return context;
-}
-
-/* Alocate a new `struct frame_state' on temporary obstack. */
-static struct frame_state *
-frame_state_alloc (void)
-{
- struct frame_state *fs;
-
- int regs_size = sizeof (struct frame_state_reg) * NUM_REGS;
-
- fs = (struct frame_state *) obstack_alloc (&unwind_tmp_obstack,
- sizeof (struct frame_state));
- memset (fs, 0, sizeof (struct frame_state));
- fs->regs.reg =
- (struct frame_state_reg *) obstack_alloc (&unwind_tmp_obstack, regs_size);
- memset (fs->regs.reg, 0, regs_size);
- return fs;
-}
-
-static void
-unwind_tmp_obstack_init (void)
-{
- obstack_init (&unwind_tmp_obstack);
-}
-
-static void
-unwind_tmp_obstack_free (void)
-{
- obstack_free (&unwind_tmp_obstack, NULL);
- unwind_tmp_obstack_init ();
-}
-
-static void
-context_cpy (struct context *dst, struct context *src)
-{
- int regs_size = sizeof (struct context_reg) * NUM_REGS;
- struct context_reg *dreg;
-
- /* Structure dst contains a pointer to an array of
- * registers of a given frame as well as src does. This
- * array was already allocated before dst was passed to
- * context_cpy but the pointer to it was overriden by
- * '*dst = *src' and the array was lost. This led to the
- * situation, that we've had a copy of src placed in dst,
- * but both of them pointed to the same regs array and
- * thus we've sometimes blindly rewritten it. Now we save
- * the pointer before copying src to dst, return it back
- * after that and copy the registers into their new place
- * finally. --- mludvig@suse.cz */
- dreg = dst->reg;
- *dst = *src;
- dst->reg = dreg;
-
- memcpy (dst->reg, src->reg, regs_size);
-}
-
-static unsigned int
-read_1u (bfd * abfd, char **p)
-{
- unsigned ret;
-
- ret = bfd_get_8 (abfd, (bfd_byte *) * p);
- (*p)++;
- return ret;
-}
-
-static int
-read_1s (bfd * abfd, char **p)
-{
- int ret;
-
- ret = bfd_get_signed_8 (abfd, (bfd_byte *) * p);
- (*p)++;
- return ret;
-}
-
-static unsigned int
-read_2u (bfd * abfd, char **p)
-{
- unsigned ret;
-
- ret = bfd_get_16 (abfd, (bfd_byte *) * p);
- (*p)++;
- return ret;
-}
-
-static int
-read_2s (bfd * abfd, char **p)
-{
- int ret;
-
- ret = bfd_get_signed_16 (abfd, (bfd_byte *) * p);
- (*p) += 2;
- return ret;
-}
-
-static unsigned int
-read_4u (bfd * abfd, char **p)
-{
- unsigned int ret;
-
- ret = bfd_get_32 (abfd, (bfd_byte *) * p);
- (*p) += 4;
- return ret;
-}
-
-static int
-read_4s (bfd * abfd, char **p)
-{
- int ret;
-
- ret = bfd_get_signed_32 (abfd, (bfd_byte *) * p);
- (*p) += 4;
- return ret;
-}
-
-static ULONGEST
-read_8u (bfd * abfd, char **p)
-{
- ULONGEST ret;
-
- ret = bfd_get_64 (abfd, (bfd_byte *) * p);
- (*p) += 8;
- return ret;
-}
-
-static LONGEST
-read_8s (bfd * abfd, char **p)
-{
- LONGEST ret;
-
- ret = bfd_get_signed_64 (abfd, (bfd_byte *) * p);
- (*p) += 8;
- return ret;
-}
-
-static ULONGEST
-read_uleb128 (bfd * abfd, char **p)
-{
- ULONGEST ret;
- int i, shift;
- unsigned char byte;
-
- ret = 0;
- shift = 0;
- i = 0;
- while (1)
- {
- byte = bfd_get_8 (abfd, (bfd_byte *) * p);
- (*p)++;
- ret |= ((unsigned long) (byte & 127) << shift);
- if ((byte & 128) == 0)
- {
- break;
- }
- shift += 7;
- }
- return ret;
-}
-
-static LONGEST
-read_sleb128 (bfd * abfd, char **p)
-{
- LONGEST ret;
- int i, shift, size, num_read;
- unsigned char byte;
-
- ret = 0;
- shift = 0;
- size = 32;
- num_read = 0;
- i = 0;
- while (1)
- {
- byte = bfd_get_8 (abfd, (bfd_byte *) * p);
- (*p)++;
- ret |= ((long) (byte & 127) << shift);
- shift += 7;
- if ((byte & 128) == 0)
- {
- break;
- }
- }
- if ((shift < size) && (byte & 0x40))
- {
- ret |= -(1 << shift);
- }
- return ret;
-}
-
-static CORE_ADDR
-read_pointer (bfd * abfd, char **p)
-{
- switch (TARGET_ADDR_BIT / TARGET_CHAR_BIT)
- {
- case 4:
- return read_4u (abfd, p);
- case 8:
- return read_8u (abfd, p);
- default:
- error ("dwarf cfi error: unsupported target address length.");
- }
-}
-
-/* This functions only reads appropriate amount of data from *p
- * and returns the resulting value. Calling function must handle
- * different encoding possibilities itself! */
-static CORE_ADDR
-read_encoded_pointer (bfd * abfd, char **p, unsigned char encoding)
-{
- CORE_ADDR ret;
-
- switch (encoding & 0x0f)
- {
- case DW_EH_PE_absptr:
- ret = read_pointer (abfd, p);
- break;
-
- case DW_EH_PE_uleb128:
- ret = read_uleb128 (abfd, p);
- break;
- case DW_EH_PE_sleb128:
- ret = read_sleb128 (abfd, p);
- break;
-
- case DW_EH_PE_udata2:
- ret = read_2u (abfd, p);
- break;
- case DW_EH_PE_udata4:
- ret = read_4u (abfd, p);
- break;
- case DW_EH_PE_udata8:
- ret = read_8u (abfd, p);
- break;
-
- case DW_EH_PE_sdata2:
- ret = read_2s (abfd, p);
- break;
- case DW_EH_PE_sdata4:
- ret = read_4s (abfd, p);
- break;
- case DW_EH_PE_sdata8:
- ret = read_8s (abfd, p);
- break;
-
- default:
- internal_error (__FILE__, __LINE__,
- "read_encoded_pointer: unknown pointer encoding");
- }
-
- return ret;
-}
-
-/* Variable 'encoding' carries 3 different flags:
- * - encoding & 0x0f : size of the address (handled in read_encoded_pointer())
- * - encoding & 0x70 : type (absolute, relative, ...)
- * - encoding & 0x80 : indirect flag (DW_EH_PE_indirect == 0x80). */
-enum ptr_encoding
-pointer_encoding (unsigned char encoding)
-{
- int ret;
-
- if (encoding & DW_EH_PE_indirect)
- warning ("CFI: Unsupported pointer encoding: DW_EH_PE_indirect");
-
- switch (encoding & 0x70)
- {
- case DW_EH_PE_absptr:
- case DW_EH_PE_pcrel:
- case DW_EH_PE_textrel:
- case DW_EH_PE_datarel:
- case DW_EH_PE_funcrel:
- ret = encoding & 0x70;
- break;
- default:
- internal_error (__FILE__, __LINE__, "CFI: unknown pointer encoding");
- }
- return ret;
-}
-
-static LONGEST
-read_initial_length (bfd * abfd, char *buf, int *bytes_read)
-{
- LONGEST ret = 0;
-
- ret = bfd_get_32 (abfd, (bfd_byte *) buf);
-
- if (ret == 0xffffffff)
- {
- ret = bfd_get_64 (abfd, (bfd_byte *) buf + 4);
- *bytes_read = 12;
- }
- else
- {
- *bytes_read = 4;
- }
-
- return ret;
-}
-
-static ULONGEST
-read_length (bfd * abfd, char *buf, int *bytes_read, int dwarf64)
-{
- if (dwarf64)
- {
- *bytes_read = 8;
- return read_8u (abfd, &buf);
- }
- else
- {
- *bytes_read = 4;
- return read_4u (abfd, &buf);
- }
-}
-
-static void
-execute_cfa_program (struct objfile *objfile, char *insn_ptr, char *insn_end,
- struct context *context, struct frame_state *fs)
-{
- struct frame_state_regs *unused_rs = NULL;
-
- /* Don't allow remember/restore between CIE and FDE programs. */
- fs->regs.prev = NULL;
-
- while (insn_ptr < insn_end && fs->pc < context->ra)
- {
- unsigned char insn = *insn_ptr++;
- ULONGEST reg, uoffset;
- LONGEST offset;
-
- if (insn & DW_CFA_advance_loc)
- fs->pc += (insn & 0x3f) * fs->code_align;
- else if (insn & DW_CFA_offset)
- {
- reg = insn & 0x3f;
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- offset = (long) uoffset *fs->data_align;
- fs->regs.reg[reg].how = REG_SAVED_OFFSET;
- fs->regs.reg[reg].loc.offset = offset;
- }
- else if (insn & DW_CFA_restore)
- {
- reg = insn & 0x3f;
- fs->regs.reg[reg].how = REG_UNSAVED;
- }
- else
- switch (insn)
- {
- case DW_CFA_set_loc:
- fs->pc = read_encoded_pointer (objfile->obfd, &insn_ptr,
- fs->addr_encoding);
-
- if (pointer_encoding (fs->addr_encoding) != PE_absptr)
- warning ("CFI: DW_CFA_set_loc uses relative addressing");
-
- break;
-
- case DW_CFA_advance_loc1:
- fs->pc += read_1u (objfile->obfd, &insn_ptr);
- break;
- case DW_CFA_advance_loc2:
- fs->pc += read_2u (objfile->obfd, &insn_ptr);
- break;
- case DW_CFA_advance_loc4:
- fs->pc += read_4u (objfile->obfd, &insn_ptr);
- break;
-
- case DW_CFA_offset_extended:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- offset = (long) uoffset *fs->data_align;
- fs->regs.reg[reg].how = REG_SAVED_OFFSET;
- fs->regs.reg[reg].loc.offset = offset;
- break;
-
- case DW_CFA_restore_extended:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->regs.reg[reg].how = REG_UNSAVED;
- break;
-
- case DW_CFA_undefined:
- case DW_CFA_same_value:
- case DW_CFA_nop:
- break;
-
- case DW_CFA_register:
- {
- ULONGEST reg2;
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- reg2 = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->regs.reg[reg].how = REG_SAVED_REG;
- fs->regs.reg[reg].loc.reg = reg2;
- }
- break;
-
- case DW_CFA_remember_state:
- {
- struct frame_state_regs *new_rs;
- if (unused_rs)
- {
- new_rs = unused_rs;
- unused_rs = unused_rs->prev;
- }
- else
- new_rs = xmalloc (sizeof (struct frame_state_regs));
-
- *new_rs = fs->regs;
- fs->regs.prev = new_rs;
- }
- break;
-
- case DW_CFA_restore_state:
- {
- struct frame_state_regs *old_rs = fs->regs.prev;
- fs->regs = *old_rs;
- old_rs->prev = unused_rs;
- unused_rs = old_rs;
- }
- break;
-
- case DW_CFA_def_cfa:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->cfa_reg = reg;
- fs->cfa_offset = uoffset;
- fs->cfa_how = CFA_REG_OFFSET;
- break;
-
- case DW_CFA_def_cfa_register:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->cfa_reg = reg;
- fs->cfa_how = CFA_REG_OFFSET;
- break;
-
- case DW_CFA_def_cfa_offset:
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->cfa_offset = uoffset;
- break;
-
- case DW_CFA_def_cfa_expression:
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->cfa_exp = insn_ptr;
- fs->cfa_how = CFA_EXP;
- insn_ptr += uoffset;
- break;
-
- case DW_CFA_expression:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->regs.reg[reg].how = REG_SAVED_EXP;
- fs->regs.reg[reg].loc.exp = insn_ptr;
- insn_ptr += uoffset;
- break;
-
- /* From the 2.1 draft. */
- case DW_CFA_offset_extended_sf:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- offset = read_sleb128 (objfile->obfd, &insn_ptr);
- offset *= fs->data_align;
- fs->regs.reg[reg].how = REG_SAVED_OFFSET;
- fs->regs.reg[reg].loc.offset = offset;
- break;
-
- case DW_CFA_def_cfa_sf:
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- offset = read_sleb128 (objfile->obfd, &insn_ptr);
- fs->cfa_offset = offset;
- fs->cfa_reg = reg;
- fs->cfa_how = CFA_REG_OFFSET;
- break;
-
- case DW_CFA_def_cfa_offset_sf:
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- fs->cfa_offset = uoffset;
- /* cfa_how deliberately not set. */
- break;
-
- case DW_CFA_GNU_window_save:
- /* ??? Hardcoded for SPARC register window configuration. */
- for (reg = 16; reg < 32; ++reg)
- {
- fs->regs.reg[reg].how = REG_SAVED_OFFSET;
- fs->regs.reg[reg].loc.offset = (reg - 16) * sizeof (void *);
- }
- break;
-
- case DW_CFA_GNU_args_size:
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- context->args_size = uoffset;
- break;
-
- case DW_CFA_GNU_negative_offset_extended:
- /* Obsoleted by DW_CFA_offset_extended_sf, but used by
- older PowerPC code. */
- reg = read_uleb128 (objfile->obfd, &insn_ptr);
- uoffset = read_uleb128 (objfile->obfd, &insn_ptr);
- offset = (long) uoffset *fs->data_align;
- fs->regs.reg[reg].how = REG_SAVED_OFFSET;
- fs->regs.reg[reg].loc.offset = -offset;
- break;
-
- default:
- error ("dwarf cfi error: unknown cfa instruction %d.", insn);
- }
- }
-}
-
-static struct fde_unit *
-get_fde_for_addr (CORE_ADDR pc)
-{
- size_t lo, hi;
- struct fde_unit *fde = NULL;
- lo = 0;
- hi = fde_chunks.elems;
-
- while (lo < hi)
- {
- size_t i = (lo + hi) / 2;
- fde = fde_chunks.array[i];
- if (pc < fde->initial_location)
- hi = i;
- else if (pc >= fde->initial_location + fde->address_range)
- lo = i + 1;
- else
- return fde;
- }
- return 0;
-}
-
-static void
-frame_state_for (struct context *context, struct frame_state *fs)
-{
- struct fde_unit *fde;
- struct cie_unit *cie;
-
- context->args_size = 0;
- context->lsda = 0;
-
- fde = get_fde_for_addr (context->ra - 1);
-
- if (fde == NULL)
- return;
-
- fs->pc = fde->initial_location;
-
- gdb_assert (fde->cie_ptr != NULL);
-
- cie = fde->cie_ptr;
-
- fs->code_align = cie->code_align;
- fs->data_align = cie->data_align;
- fs->retaddr_column = cie->ra;
- fs->addr_encoding = cie->addr_encoding;
- fs->objfile = cie->objfile;
-
- execute_cfa_program (cie->objfile, cie->data,
- cie->data + cie->data_length, context, fs);
- execute_cfa_program (cie->objfile, fde->data,
- fde->data + fde->data_length, context, fs);
-}
-
-static void
-get_reg (char *reg, struct context *context, int regnum)
-{
- switch (context->reg[regnum].how)
- {
- case REG_CTX_UNSAVED:
- read_register_gen (regnum, reg);
- break;
- case REG_CTX_SAVED_OFFSET:
- target_read_memory (context->cfa + context->reg[regnum].loc.offset,
- reg, REGISTER_RAW_SIZE (regnum));
- break;
- case REG_CTX_SAVED_REG:
- read_register_gen (context->reg[regnum].loc.reg, reg);
- break;
- case REG_CTX_SAVED_ADDR:
- target_read_memory (context->reg[regnum].loc.addr,
- reg, REGISTER_RAW_SIZE (regnum));
- break;
- case REG_CTX_VALUE:
- memcpy (reg, &context->reg[regnum].loc.addr,
- REGISTER_RAW_SIZE (regnum));
- break;
- default:
- internal_error (__FILE__, __LINE__, "get_reg: unknown register rule");
- }
-}
-
-/* Decode a DW_OP stack program. Return the top of stack. Push INITIAL
- onto the stack to start. */
-static CORE_ADDR
-execute_stack_op (struct objfile *objfile,
- char *op_ptr, char *op_end, struct context *context,
- CORE_ADDR initial)
-{
- CORE_ADDR stack[64]; /* ??? Assume this is enough. */
- int stack_elt;
-
- stack[0] = initial;
- stack_elt = 1;
-
- while (op_ptr < op_end)
- {
- enum dwarf_location_atom op = *op_ptr++;
- CORE_ADDR result;
- ULONGEST reg;
- LONGEST offset;
-
- switch (op)
- {
- case DW_OP_lit0:
- case DW_OP_lit1:
- case DW_OP_lit2:
- case DW_OP_lit3:
- case DW_OP_lit4:
- case DW_OP_lit5:
- case DW_OP_lit6:
- case DW_OP_lit7:
- case DW_OP_lit8:
- case DW_OP_lit9:
- case DW_OP_lit10:
- case DW_OP_lit11:
- case DW_OP_lit12:
- case DW_OP_lit13:
- case DW_OP_lit14:
- case DW_OP_lit15:
- case DW_OP_lit16:
- case DW_OP_lit17:
- case DW_OP_lit18:
- case DW_OP_lit19:
- case DW_OP_lit20:
- case DW_OP_lit21:
- case DW_OP_lit22:
- case DW_OP_lit23:
- case DW_OP_lit24:
- case DW_OP_lit25:
- case DW_OP_lit26:
- case DW_OP_lit27:
- case DW_OP_lit28:
- case DW_OP_lit29:
- case DW_OP_lit30:
- case DW_OP_lit31:
- result = op - DW_OP_lit0;
- break;
-
- case DW_OP_addr:
- result = read_pointer (objfile->obfd, &op_ptr);
- break;
-
- case DW_OP_const1u:
- result = read_1u (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const1s:
- result = read_1s (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const2u:
- result = read_2u (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const2s:
- result = read_2s (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const4u:
- result = read_4u (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const4s:
- result = read_4s (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const8u:
- result = read_8u (objfile->obfd, &op_ptr);
- break;
- case DW_OP_const8s:
- result = read_8s (objfile->obfd, &op_ptr);
- break;
- case DW_OP_constu:
- result = read_uleb128 (objfile->obfd, &op_ptr);
- break;
- case DW_OP_consts:
- result = read_sleb128 (objfile->obfd, &op_ptr);
- break;
-
- case DW_OP_reg0:
- case DW_OP_reg1:
- case DW_OP_reg2:
- case DW_OP_reg3:
- case DW_OP_reg4:
- case DW_OP_reg5:
- case DW_OP_reg6:
- case DW_OP_reg7:
- case DW_OP_reg8:
- case DW_OP_reg9:
- case DW_OP_reg10:
- case DW_OP_reg11:
- case DW_OP_reg12:
- case DW_OP_reg13:
- case DW_OP_reg14:
- case DW_OP_reg15:
- case DW_OP_reg16:
- case DW_OP_reg17:
- case DW_OP_reg18:
- case DW_OP_reg19:
- case DW_OP_reg20:
- case DW_OP_reg21:
- case DW_OP_reg22:
- case DW_OP_reg23:
- case DW_OP_reg24:
- case DW_OP_reg25:
- case DW_OP_reg26:
- case DW_OP_reg27:
- case DW_OP_reg28:
- case DW_OP_reg29:
- case DW_OP_reg30:
- case DW_OP_reg31:
- get_reg ((char *) &result, context, op - DW_OP_reg0);
- break;
- case DW_OP_regx:
- reg = read_uleb128 (objfile->obfd, &op_ptr);
- get_reg ((char *) &result, context, reg);
- break;
-
- case DW_OP_breg0:
- case DW_OP_breg1:
- case DW_OP_breg2:
- case DW_OP_breg3:
- case DW_OP_breg4:
- case DW_OP_breg5:
- case DW_OP_breg6:
- case DW_OP_breg7:
- case DW_OP_breg8:
- case DW_OP_breg9:
- case DW_OP_breg10:
- case DW_OP_breg11:
- case DW_OP_breg12:
- case DW_OP_breg13:
- case DW_OP_breg14:
- case DW_OP_breg15:
- case DW_OP_breg16:
- case DW_OP_breg17:
- case DW_OP_breg18:
- case DW_OP_breg19:
- case DW_OP_breg20:
- case DW_OP_breg21:
- case DW_OP_breg22:
- case DW_OP_breg23:
- case DW_OP_breg24:
- case DW_OP_breg25:
- case DW_OP_breg26:
- case DW_OP_breg27:
- case DW_OP_breg28:
- case DW_OP_breg29:
- case DW_OP_breg30:
- case DW_OP_breg31:
- offset = read_sleb128 (objfile->obfd, &op_ptr);
- get_reg ((char *) &result, context, op - DW_OP_breg0);
- result += offset;
- break;
- case DW_OP_bregx:
- reg = read_uleb128 (objfile->obfd, &op_ptr);
- offset = read_sleb128 (objfile->obfd, &op_ptr);
- get_reg ((char *) &result, context, reg);
- result += offset;
- break;
-
- case DW_OP_dup:
- if (stack_elt < 1)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- result = stack[stack_elt - 1];
- break;
-
- case DW_OP_drop:
- if (--stack_elt < 0)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- goto no_push;
-
- case DW_OP_pick:
- offset = *op_ptr++;
- if (offset >= stack_elt - 1)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- result = stack[stack_elt - 1 - offset];
- break;
-
- case DW_OP_over:
- if (stack_elt < 2)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- result = stack[stack_elt - 2];
- break;
-
- case DW_OP_rot:
- {
- CORE_ADDR t1, t2, t3;
-
- if (stack_elt < 3)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- t1 = stack[stack_elt - 1];
- t2 = stack[stack_elt - 2];
- t3 = stack[stack_elt - 3];
- stack[stack_elt - 1] = t2;
- stack[stack_elt - 2] = t3;
- stack[stack_elt - 3] = t1;
- goto no_push;
- }
-
- case DW_OP_deref:
- case DW_OP_deref_size:
- case DW_OP_abs:
- case DW_OP_neg:
- case DW_OP_not:
- case DW_OP_plus_uconst:
- /* Unary operations. */
- if (--stack_elt < 0)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- result = stack[stack_elt];
-
- switch (op)
- {
- case DW_OP_deref:
- {
- int len = TARGET_ADDR_BIT / TARGET_CHAR_BIT;
- if (len != 4 && len != 8)
- internal_error (__FILE__, __LINE__,
- "execute_stack_op error");
- result = read_memory_unsigned_integer (result, len);
- }
- break;
-
- case DW_OP_deref_size:
- {
- int len = *op_ptr++;
- if (len != 1 && len != 2 && len != 4 && len !=8)
- internal_error (__FILE__, __LINE__,
- "execute_stack_op error");
- result = read_memory_unsigned_integer (result, len);
- }
- break;
-
- case DW_OP_abs:
- if (result < 0)
- result = -result;
- break;
- case DW_OP_neg:
- result = -result;
- break;
- case DW_OP_not:
- result = ~result;
- break;
- case DW_OP_plus_uconst:
- result += read_uleb128 (objfile->obfd, &op_ptr);
- break;
- default:
- break;
- }
- break;
-
- case DW_OP_and:
- case DW_OP_div:
- case DW_OP_minus:
- case DW_OP_mod:
- case DW_OP_mul:
- case DW_OP_or:
- case DW_OP_plus:
- case DW_OP_le:
- case DW_OP_ge:
- case DW_OP_eq:
- case DW_OP_lt:
- case DW_OP_gt:
- case DW_OP_ne:
- {
- /* Binary operations. */
- CORE_ADDR first, second;
- if ((stack_elt -= 2) < 0)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- second = stack[stack_elt];
- first = stack[stack_elt + 1];
-
- switch (op)
- {
- case DW_OP_and:
- result = second & first;
- break;
- case DW_OP_div:
- result = (LONGEST) second / (LONGEST) first;
- break;
- case DW_OP_minus:
- result = second - first;
- break;
- case DW_OP_mod:
- result = (LONGEST) second % (LONGEST) first;
- break;
- case DW_OP_mul:
- result = second * first;
- break;
- case DW_OP_or:
- result = second | first;
- break;
- case DW_OP_plus:
- result = second + first;
- break;
- case DW_OP_shl:
- result = second << first;
- break;
- case DW_OP_shr:
- result = second >> first;
- break;
- case DW_OP_shra:
- result = (LONGEST) second >> first;
- break;
- case DW_OP_xor:
- result = second ^ first;
- break;
- case DW_OP_le:
- result = (LONGEST) first <= (LONGEST) second;
- break;
- case DW_OP_ge:
- result = (LONGEST) first >= (LONGEST) second;
- break;
- case DW_OP_eq:
- result = (LONGEST) first == (LONGEST) second;
- break;
- case DW_OP_lt:
- result = (LONGEST) first < (LONGEST) second;
- break;
- case DW_OP_gt:
- result = (LONGEST) first > (LONGEST) second;
- break;
- case DW_OP_ne:
- result = (LONGEST) first != (LONGEST) second;
- break;
- default:
- error ("execute_stack_op: Unknown DW_OP_ value");
- break;
- }
- }
- break;
-
- case DW_OP_skip:
- offset = read_2s (objfile->obfd, &op_ptr);
- op_ptr += offset;
- goto no_push;
-
- case DW_OP_bra:
- if (--stack_elt < 0)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- offset = read_2s (objfile->obfd, &op_ptr);
- if (stack[stack_elt] != 0)
- op_ptr += offset;
- goto no_push;
-
- case DW_OP_nop:
- goto no_push;
-
- default:
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- }
-
- /* Most things push a result value. */
- if ((size_t) stack_elt >= sizeof (stack) / sizeof (*stack))
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- stack[++stack_elt] = result;
- no_push:;
- }
-
- /* We were executing this program to get a value. It should be
- at top of stack. */
- if (--stack_elt < 0)
- internal_error (__FILE__, __LINE__, "execute_stack_op error");
- return stack[stack_elt];
-}
-
-static void
-update_context (struct context *context, struct frame_state *fs, int chain)
-{
- struct context *orig_context;
- CORE_ADDR cfa = 0;
- long i;
-
- unwind_tmp_obstack_init ();
-
- orig_context = context_alloc ();
- context_cpy (orig_context, context);
-
- /* Compute this frame's CFA. */
- switch (fs->cfa_how)
- {
- case CFA_REG_OFFSET:
- get_reg ((char *) &cfa, context, fs->cfa_reg);
- cfa += fs->cfa_offset;
- break;
-
- case CFA_EXP:
- /* ??? No way of knowing what register number is the stack pointer
- to do the same sort of handling as above. Assume that if the
- CFA calculation is so complicated as to require a stack program
- that this will not be a problem. */
- {
- char *exp = fs->cfa_exp;
- ULONGEST len;
-
- len = read_uleb128 (fs->objfile->obfd, &exp);
- cfa = (CORE_ADDR) execute_stack_op (fs->objfile, exp,
- exp + len, context, 0);
- break;
- }
- default:
- break;
- }
- context->cfa = cfa;
-
- if (!chain)
- orig_context->cfa = cfa;
-
- /* Compute the addresses of all registers saved in this frame. */
- for (i = 0; i < NUM_REGS; ++i)
- switch (fs->regs.reg[i].how)
- {
- case REG_UNSAVED:
- if (i == SP_REGNUM)
- {
- context->reg[i].how = REG_CTX_VALUE;
- context->reg[i].loc.addr = cfa;
- }
- else
- context->reg[i].how = REG_CTX_UNSAVED;
- break;
- case REG_SAVED_OFFSET:
- context->reg[i].how = REG_CTX_SAVED_OFFSET;
- context->reg[i].loc.offset = fs->regs.reg[i].loc.offset;
- break;
- case REG_SAVED_REG:
- switch (orig_context->reg[fs->regs.reg[i].loc.reg].how)
- {
- case REG_CTX_UNSAVED:
- context->reg[i].how = REG_CTX_UNSAVED;
- break;
- case REG_CTX_SAVED_OFFSET:
- context->reg[i].how = REG_CTX_SAVED_OFFSET;
- context->reg[i].loc.offset = orig_context->cfa - context->cfa +
- orig_context->reg[fs->regs.reg[i].loc.reg].loc.offset;
- break;
- case REG_CTX_SAVED_REG:
- context->reg[i].how = REG_CTX_SAVED_REG;
- context->reg[i].loc.reg =
- orig_context->reg[fs->regs.reg[i].loc.reg].loc.reg;
- break;
- case REG_CTX_SAVED_ADDR:
- context->reg[i].how = REG_CTX_SAVED_ADDR;
- context->reg[i].loc.addr =
- orig_context->reg[fs->regs.reg[i].loc.reg].loc.addr;
- break;
- default:
- internal_error (__FILE__, __LINE__, "bad switch");
- }
- break;
- case REG_SAVED_EXP:
- {
- char *exp = fs->regs.reg[i].loc.exp;
- ULONGEST len;
- CORE_ADDR val;
-
- len = read_uleb128 (fs->objfile->obfd, &exp);
- val = execute_stack_op (fs->objfile, exp, exp + len,
- orig_context, cfa);
- context->reg[i].how = REG_CTX_SAVED_ADDR;
- context->reg[i].loc.addr = val;
- }
- break;
- default:
- internal_error (__FILE__, __LINE__, "bad switch");
- }
- get_reg ((char *) &context->ra, context, fs->retaddr_column);
- unwind_tmp_obstack_free ();
-}
-
-static int
-is_cie (ULONGEST cie_id, int dwarf64)
-{
- return dwarf64 ? (cie_id == 0xffffffffffffffff) : (cie_id == 0xffffffff);
-}
-
-static int
-compare_fde_unit (const void *a, const void *b)
-{
- struct fde_unit **first, **second;
- first = (struct fde_unit **) a;
- second = (struct fde_unit **) b;
- if ((*first)->initial_location > (*second)->initial_location)
- return 1;
- else if ((*first)->initial_location < (*second)->initial_location)
- return -1;
- else
- return 0;
-}
-
-/* Build the cie_chunks and fde_chunks tables from informations
- found in .debug_frame and .eh_frame sections. */
-/* We can handle both of these sections almost in the same way, however there
- are some exceptions:
- - CIE ID is -1 in debug_frame, but 0 in eh_frame
- - eh_frame may contain some more information that are used only by gcc
- (eg. personality pointer, LSDA pointer, ...). Most of them we can ignore.
- - In debug_frame FDE's item cie_id contains offset of it's parent CIE.
- In eh_frame FDE's item cie_id is a relative pointer to the parent CIE.
- Anyway we don't need to bother with this, because we are smart enough
- to keep the pointer to the parent CIE of oncomming FDEs in 'last_cie'.
- - Although debug_frame items can contain Augmentation as well as
- eh_frame ones, I have never seen them non-empty. Thus only in eh_frame
- we can encounter for example non-absolute pointers (Aug. 'R').
- -- mludvig */
-static void
-parse_frame_info (struct objfile *objfile, file_ptr frame_offset,
- unsigned int frame_size, int eh_frame)
-{
- bfd *abfd = objfile->obfd;
- asection *curr_section_ptr;
- char *start = NULL;
- char *end = NULL;
- char *frame_buffer = NULL;
- char *curr_section_name, *aug_data;
- struct cie_unit *last_cie = NULL;
- int last_dup_fde = 0;
- int aug_len, i;
- CORE_ADDR curr_section_vma = 0;
-
- unwind_tmp_obstack_init ();
-
- frame_buffer = dwarf2_read_section (objfile, frame_offset, frame_size);
-
- start = frame_buffer;
- end = frame_buffer + frame_size;
-
- curr_section_name = eh_frame ? ".eh_frame" : ".debug_frame";
- curr_section_ptr = bfd_get_section_by_name (abfd, curr_section_name);
- if (curr_section_ptr)
- curr_section_vma = curr_section_ptr->vma;
-
- if (start)
- {
- while (start < end)
- {
- unsigned long length;
- ULONGEST cie_id;
- ULONGEST unit_offset = start - frame_buffer;
- int bytes_read, dwarf64;
- char *block_end;
-
- length = read_initial_length (abfd, start, &bytes_read);
- start += bytes_read;
- dwarf64 = (bytes_read == 12);
- block_end = start + length;
-
- if (length == 0)
- {
- start = block_end;
- continue;
- }
-
- cie_id = read_length (abfd, start, &bytes_read, dwarf64);
- start += bytes_read;
-
- if ((eh_frame && cie_id == 0) || is_cie (cie_id, dwarf64))
- {
- struct cie_unit *cie = cie_unit_alloc ();
- char *aug;
-
- cie->objfile = objfile;
- cie->next = cie_chunks;
- cie_chunks = cie;
-
- cie->objfile = objfile;
-
- cie->offset = unit_offset;
-
- start++; /* version */
-
- cie->augmentation = aug = start;
- while (*start++); /* Skips last NULL as well */
-
- cie->code_align = read_uleb128 (abfd, &start);
- cie->data_align = read_sleb128 (abfd, &start);
- cie->ra = read_1u (abfd, &start);
-
- /* Augmentation:
- z Indicates that a uleb128 is present to size the
- augmentation section.
- L Indicates the encoding (and thus presence) of
- an LSDA pointer in the FDE augmentation.
- R Indicates a non-default pointer encoding for
- FDE code pointers.
- P Indicates the presence of an encoding + language
- personality routine in the CIE augmentation.
-
- [This info comes from GCC's dwarf2out.c]
- */
- if (*aug == 'z')
- {
- aug_len = read_uleb128 (abfd, &start);
- aug_data = start;
- start += aug_len;
- ++aug;
- }
-
- cie->data = start;
- cie->data_length = block_end - cie->data;
-
- while (*aug != '\0')
- {
- if (aug[0] == 'e' && aug[1] == 'h')
- {
- aug_data += sizeof (void *);
- aug++;
- }
- else if (aug[0] == 'R')
- cie->addr_encoding = *aug_data++;
- else if (aug[0] == 'P')
- {
- CORE_ADDR pers_addr;
- int pers_addr_enc;
-
- pers_addr_enc = *aug_data++;
- /* We don't need pers_addr value and so we
- don't care about it's encoding. */
- pers_addr = read_encoded_pointer (abfd, &aug_data,
- pers_addr_enc);
- }
- else if (aug[0] == 'L' && eh_frame)
- {
- int lsda_addr_enc;
-
- /* Perhaps we should save this to CIE for later use?
- Do we need it for something in GDB? */
- lsda_addr_enc = *aug_data++;
- }
- else
- warning ("CFI warning: unknown augmentation \"%c\""
- " in \"%s\" of\n"
- "\t%s", aug[0], curr_section_name,
- objfile->name);
- aug++;
- }
-
- last_cie = cie;
- }
- else
- {
- struct fde_unit *fde;
- struct cie_unit *cie;
- int dup = 0;
- CORE_ADDR init_loc;
-
- /* We assume that debug_frame is in order
- CIE,FDE,CIE,FDE,FDE,... and thus the CIE for this FDE
- should be stored in last_cie pointer. If not, we'll
- try to find it by the older way. */
- if (last_cie)
- cie = last_cie;
- else
- {
- warning ("CFI: last_cie == NULL. "
- "Perhaps a malformed %s section in '%s'...?\n",
- curr_section_name, objfile->name);
-
- cie = cie_chunks;
- while (cie)
- {
- if (cie->objfile == objfile)
- {
- if (eh_frame &&
- (cie->offset ==
- (unit_offset + bytes_read - cie_id)))
- break;
- if (!eh_frame && (cie->offset == cie_id))
- break;
- }
-
- cie = cie->next;
- }
- if (!cie)
- error ("CFI: can't find CIE pointer");
- }
-
- init_loc = read_encoded_pointer (abfd, &start,
- cie->addr_encoding);
-
- switch (pointer_encoding (cie->addr_encoding))
- {
- case PE_absptr:
- break;
- case PE_pcrel:
- /* start-frame_buffer gives offset from
- the beginning of actual section. */
- init_loc += curr_section_vma + start - frame_buffer;
- break;
- default:
- warning ("CFI: Unsupported pointer encoding\n");
- }
-
- /* For relocatable objects we must add an offset telling
- where the section is actually mapped in the memory. */
- init_loc += ANOFFSET (objfile->section_offsets,
- SECT_OFF_TEXT (objfile));
-
- /* If we have both .debug_frame and .eh_frame present in
- a file, we must eliminate duplicate FDEs. For now we'll
- run through all entries in fde_chunks and check it one
- by one. Perhaps in the future we can implement a faster
- searching algorithm. */
- /* eh_frame==2 indicates, that this file has an already
- parsed .debug_frame too. When eh_frame==1 it means, that no
- .debug_frame is present and thus we don't need to check for
- duplicities. eh_frame==0 means, that we parse .debug_frame
- and don't need to care about duplicate FDEs, because
- .debug_frame is parsed first. */
- if (eh_frame == 2)
- for (i = 0; eh_frame == 2 && i < fde_chunks.elems; i++)
- {
- /* We assume that FDEs in .debug_frame and .eh_frame
- have the same order (if they are present, of course).
- If we find a duplicate entry for one FDE and save
- it's index to last_dup_fde it's very likely, that
- we'll find an entry for the following FDE right after
- the previous one. Thus in many cases we'll run this
- loop only once. */
- last_dup_fde = (last_dup_fde + i) % fde_chunks.elems;
- if (fde_chunks.array[last_dup_fde]->initial_location
- == init_loc)
- {
- dup = 1;
- break;
- }
- }
-
- /* Allocate a new entry only if this FDE isn't a duplicate of
- something we have already seen. */
- if (!dup)
- {
- fde_chunks_need_space ();
- fde = fde_unit_alloc ();
-
- fde_chunks.array[fde_chunks.elems++] = fde;
-
- fde->initial_location = init_loc;
- fde->address_range = read_encoded_pointer (abfd, &start,
- cie->
- addr_encoding);
-
- fde->cie_ptr = cie;
-
- /* Here we intentionally ignore augmentation data
- from FDE, because we don't need them. */
- if (cie->augmentation[0] == 'z')
- start += read_uleb128 (abfd, &start);
-
- fde->data = start;
- fde->data_length = block_end - start;
- }
- }
- start = block_end;
- }
- qsort (fde_chunks.array, fde_chunks.elems,
- sizeof (struct fde_unit *), compare_fde_unit);
- }
-}
-
-/* We must parse both .debug_frame section and .eh_frame because
- * not all frames must be present in both of these sections. */
-void
-dwarf2_build_frame_info (struct objfile *objfile)
-{
- int after_debug_frame = 0;
-
- /* If we have .debug_frame then the parser is called with
- eh_frame==0 for .debug_frame and eh_frame==2 for .eh_frame,
- otherwise it's only called once for .eh_frame with argument
- eh_frame==1. */
-
- if (dwarf_frame_offset)
- {
- parse_frame_info (objfile, dwarf_frame_offset,
- dwarf_frame_size, 0 /* = debug_frame */ );
- after_debug_frame = 1;
- }
-
- if (dwarf_eh_frame_offset)
- parse_frame_info (objfile, dwarf_eh_frame_offset, dwarf_eh_frame_size,
- 1 /* = eh_frame */ + after_debug_frame);
-}
-
-/* Return the frame address. */
-CORE_ADDR
-cfi_read_fp (void)
-{
- struct context *context;
- struct frame_state *fs;
- CORE_ADDR cfa;
-
- unwind_tmp_obstack_init ();
-
- context = context_alloc ();
- fs = frame_state_alloc ();
-
- context->ra = read_pc () + 1;
-
- frame_state_for (context, fs);
- update_context (context, fs, 0);
-
- cfa = context->cfa;
-
- unwind_tmp_obstack_free ();
-
- return cfa;
-}
-
-/* Store the frame address. This function is not used. */
-
-void
-cfi_write_fp (CORE_ADDR val)
-{
- struct context *context;
- struct frame_state *fs;
-
- unwind_tmp_obstack_init ();
-
- context = context_alloc ();
- fs = frame_state_alloc ();
-
- context->ra = read_pc () + 1;
-
- frame_state_for (context, fs);
-
- if (fs->cfa_how == CFA_REG_OFFSET)
- {
- val -= fs->cfa_offset;
- write_register_gen (fs->cfa_reg, (char *) &val);
- }
- else
- warning ("Can't write fp.");
-
- unwind_tmp_obstack_free ();
-}
-
-/* Restore the machine to the state it had before the current frame
- was created. */
-void
-cfi_pop_frame (struct frame_info *fi)
-{
- char *regbuf = alloca (MAX_REGISTER_RAW_SIZE);
- int regnum;
-
- for (regnum = 0; regnum < NUM_REGS; regnum++)
- {
- get_reg (regbuf, UNWIND_CONTEXT (fi), regnum);
- write_register_bytes (REGISTER_BYTE (regnum), regbuf,
- REGISTER_RAW_SIZE (regnum));
- }
- write_register (PC_REGNUM, UNWIND_CONTEXT (fi)->ra);
-
- flush_cached_frames ();
-}
-
-/* Determine the address of the calling function's frame. */
-CORE_ADDR
-cfi_frame_chain (struct frame_info *fi)
-{
- struct context *context;
- struct frame_state *fs;
- CORE_ADDR cfa;
-
- unwind_tmp_obstack_init ();
-
- context = context_alloc ();
- fs = frame_state_alloc ();
- context_cpy (context, UNWIND_CONTEXT (fi));
-
- /* outermost frame */
- if (context->ra == 0)
- {
- unwind_tmp_obstack_free ();
- return 0;
- }
-
- frame_state_for (context, fs);
- update_context (context, fs, 1);
-
- cfa = context->cfa;
- unwind_tmp_obstack_free ();
-
- return cfa;
-}
-
-/* Sets the pc of the frame. */
-void
-cfi_init_frame_pc (int fromleaf, struct frame_info *fi)
-{
- if (fi->next)
- get_reg ((char *) &(fi->pc), UNWIND_CONTEXT (fi->next), PC_REGNUM);
- else
- fi->pc = read_pc ();
-}
-
-/* Initialize unwind context informations of the frame. */
-void
-cfi_init_extra_frame_info (int fromleaf, struct frame_info *fi)
-{
- struct frame_state *fs;
-
- unwind_tmp_obstack_init ();
-
- fs = frame_state_alloc ();
- fi->context = frame_obstack_alloc (sizeof (struct context));
- UNWIND_CONTEXT (fi)->reg =
- frame_obstack_alloc (sizeof (struct context_reg) * NUM_REGS);
- memset (UNWIND_CONTEXT (fi)->reg, 0,
- sizeof (struct context_reg) * NUM_REGS);
-
- if (fi->next)
- {
- context_cpy (UNWIND_CONTEXT (fi), UNWIND_CONTEXT (fi->next));
- frame_state_for (UNWIND_CONTEXT (fi), fs);
- update_context (UNWIND_CONTEXT (fi), fs, 1);
- }
- else
- {
- UNWIND_CONTEXT (fi)->ra = fi->pc + 1;
- frame_state_for (UNWIND_CONTEXT (fi), fs);
- update_context (UNWIND_CONTEXT (fi), fs, 0);
- }
-
- unwind_tmp_obstack_free ();
-}
-
-/* Obtain return address of the frame. */
-CORE_ADDR
-cfi_get_ra (struct frame_info *fi)
-{
- return UNWIND_CONTEXT (fi)->ra;
-}
-
-/* Find register number REGNUM relative to FRAME and put its
- (raw) contents in *RAW_BUFFER. Set *OPTIMIZED if the variable
- was optimized out (and thus can't be fetched). If the variable
- was fetched from memory, set *ADDRP to where it was fetched from,
- otherwise it was fetched from a register.
-
- The argument RAW_BUFFER must point to aligned memory. */
-void
-cfi_get_saved_register (char *raw_buffer,
- int *optimized,
- CORE_ADDR *addrp,
- struct frame_info *frame,
- int regnum, enum lval_type *lval)
-{
- if (!target_has_registers)
- error ("No registers.");
-
- /* Normal systems don't optimize out things with register numbers. */
- if (optimized != NULL)
- *optimized = 0;
-
- if (addrp) /* default assumption: not found in memory */
- *addrp = 0;
-
- if (!frame->next)
- {
- read_register_gen (regnum, raw_buffer);
- if (lval != NULL)
- *lval = lval_register;
- if (addrp != NULL)
- *addrp = REGISTER_BYTE (regnum);
- }
- else
- {
- frame = frame->next;
- switch (UNWIND_CONTEXT (frame)->reg[regnum].how)
- {
- case REG_CTX_UNSAVED:
- read_register_gen (regnum, raw_buffer);
- if (lval != NULL)
- *lval = not_lval;
- if (optimized != NULL)
- *optimized = 1;
- break;
- case REG_CTX_SAVED_OFFSET:
- target_read_memory (UNWIND_CONTEXT (frame)->cfa +
- UNWIND_CONTEXT (frame)->reg[regnum].loc.offset,
- raw_buffer, REGISTER_RAW_SIZE (regnum));
- if (lval != NULL)
- *lval = lval_memory;
- if (addrp != NULL)
- *addrp =
- UNWIND_CONTEXT (frame)->cfa +
- UNWIND_CONTEXT (frame)->reg[regnum].loc.offset;
- break;
- case REG_CTX_SAVED_REG:
- read_register_gen (UNWIND_CONTEXT (frame)->reg[regnum].loc.reg,
- raw_buffer);
- if (lval != NULL)
- *lval = lval_register;
- if (addrp != NULL)
- *addrp =
- REGISTER_BYTE (UNWIND_CONTEXT (frame)->reg[regnum].loc.reg);
- break;
- case REG_CTX_SAVED_ADDR:
- target_read_memory (UNWIND_CONTEXT (frame)->reg[regnum].loc.addr,
- raw_buffer, REGISTER_RAW_SIZE (regnum));
- if (lval != NULL)
- *lval = lval_memory;
- if (addrp != NULL)
- *addrp = UNWIND_CONTEXT (frame)->reg[regnum].loc.addr;
- break;
- case REG_CTX_VALUE:
- memcpy (raw_buffer, &UNWIND_CONTEXT (frame)->reg[regnum].loc.addr,
- REGISTER_RAW_SIZE (regnum));
- if (lval != NULL)
- *lval = not_lval;
- if (optimized != NULL)
- *optimized = 0;
- break;
- default:
- internal_error (__FILE__, __LINE__,
- "cfi_get_saved_register: unknown register rule");
- }
- }
-}
-
-/* Return the register that the function uses for a frame pointer,
- plus any necessary offset to be applied to the register before
- any frame pointer offsets. */
-void
-cfi_virtual_frame_pointer (CORE_ADDR pc, int *frame_reg,
- LONGEST * frame_offset)
-{
- struct context *context;
- struct frame_state *fs;
-
- unwind_tmp_obstack_init ();
-
- context = context_alloc ();
- fs = frame_state_alloc ();
-
- context->ra = read_pc () + 1;
-
- frame_state_for (context, fs);
-
- if (fs->cfa_how == CFA_REG_OFFSET)
- {
- *frame_reg = fs->cfa_reg;
- *frame_offset = fs->cfa_offset;
- }
- else
- error ("dwarf cfi error: CFA is not defined as CFA_REG_OFFSET");
-
- unwind_tmp_obstack_free ();
-}