2009-11-25 H.J. Lu <hongjiu.lu@intel.com> * alias.c: Remove trailing white spaces. * alloc-pool.c: Likewise. * alloc-pool.h: Likewise. * attribs.c: Likewise. * auto-inc-dec.c: Likewise. * basic-block.h: Likewise. * bb-reorder.c: Likewise. * bt-load.c: Likewise. * builtins.c: Likewise. * builtins.def: Likewise. * c-common.c: Likewise. * c-common.h: Likewise. * c-cppbuiltin.c: Likewise. * c-decl.c: Likewise. * c-format.c: Likewise. * c-lex.c: Likewise. * c-omp.c: Likewise. * c-opts.c: Likewise. * c-parser.c: Likewise. * c-pretty-print.c: Likewise. * c-tree.h: Likewise. * c-typeck.c: Likewise. * caller-save.c: Likewise. * calls.c: Likewise. * cfg.c: Likewise. * cfganal.c: Likewise. * cfgexpand.c: Likewise. * cfghooks.c: Likewise. * cfghooks.h: Likewise. * cfglayout.c: Likewise. * cfgloop.c: Likewise. * cfgloop.h: Likewise. * cfgloopmanip.c: Likewise. * cfgrtl.c: Likewise. * cgraph.c: Likewise. * cgraph.h: Likewise. * cgraphbuild.c: Likewise. * cgraphunit.c: Likewise. * cif-code.def: Likewise. * collect2.c: Likewise. * combine.c: Likewise. * convert.c: Likewise. * coverage.c: Likewise. * crtstuff.c: Likewise. * cse.c: Likewise. * cselib.c: Likewise. * dbgcnt.c: Likewise. * dbgcnt.def: Likewise. * dbgcnt.h: Likewise. * dbxout.c: Likewise. * dce.c: Likewise. * ddg.c: Likewise. * ddg.h: Likewise. * defaults.h: Likewise. * df-byte-scan.c: Likewise. * df-core.c: Likewise. * df-problems.c: Likewise. * df-scan.c: Likewise. * df.h: Likewise. * dfp.c: Likewise. * diagnostic.c: Likewise. * diagnostic.h: Likewise. * dominance.c: Likewise. * domwalk.c: Likewise. * double-int.c: Likewise. * double-int.h: Likewise. * dse.c: Likewise. * dwarf2asm.c: Likewise. * dwarf2asm.h: Likewise. * dwarf2out.c: Likewise. * ebitmap.c: Likewise. * ebitmap.h: Likewise. * emit-rtl.c: Likewise. * et-forest.c: Likewise. * except.c: Likewise. * except.h: Likewise. * expmed.c: Likewise. * expr.c: Likewise. * expr.h: Likewise. * final.c: Likewise. * flags.h: Likewise. * fold-const.c: Likewise. * function.c: Likewise. * function.h: Likewise. * fwprop.c: Likewise. * gcc.c: Likewise. * gcov-dump.c: Likewise. * gcov-io.c: Likewise. * gcov-io.h: Likewise. * gcov.c: Likewise. * gcse.c: Likewise. * genattr.c: Likewise. * genattrtab.c: Likewise. * genautomata.c: Likewise. * genchecksum.c: Likewise. * genconfig.c: Likewise. * genflags.c: Likewise. * gengtype-parse.c: Likewise. * gengtype.c: Likewise. * gengtype.h: Likewise. * genmddeps.c: Likewise. * genmodes.c: Likewise. * genopinit.c: Likewise. * genpreds.c: Likewise. * gensupport.c: Likewise. * ggc-common.c: Likewise. * ggc-page.c: Likewise. * ggc-zone.c: Likewise. * ggc.h: Likewise. * gimple-iterator.c: Likewise. * gimple-low.c: Likewise. * gimple-pretty-print.c: Likewise. * gimple.c: Likewise. * gimple.def: Likewise. * gimple.h: Likewise. * gimplify.c: Likewise. * graphds.c: Likewise. * graphite-clast-to-gimple.c: Likewise. * gthr-nks.h: Likewise. * gthr-posix.c: Likewise. * gthr-posix.h: Likewise. * gthr-posix95.h: Likewise. * gthr-single.h: Likewise. * gthr-tpf.h: Likewise. * gthr-vxworks.h: Likewise. * gthr.h: Likewise. * haifa-sched.c: Likewise. * hard-reg-set.h: Likewise. * hooks.c: Likewise. * hooks.h: Likewise. * hosthooks.h: Likewise. * hwint.h: Likewise. * ifcvt.c: Likewise. * incpath.c: Likewise. * init-regs.c: Likewise. * integrate.c: Likewise. * ipa-cp.c: Likewise. * ipa-inline.c: Likewise. * ipa-prop.c: Likewise. * ipa-pure-const.c: Likewise. * ipa-reference.c: Likewise. * ipa-struct-reorg.c: Likewise. * ipa-struct-reorg.h: Likewise. * ipa-type-escape.c: Likewise. * ipa-type-escape.h: Likewise. * ipa-utils.c: Likewise. * ipa-utils.h: Likewise. * ipa.c: Likewise. * ira-build.c: Likewise. * ira-color.c: Likewise. * ira-conflicts.c: Likewise. * ira-costs.c: Likewise. * ira-emit.c: Likewise. * ira-int.h: Likewise. * ira-lives.c: Likewise. * ira.c: Likewise. * jump.c: Likewise. * lambda-code.c: Likewise. * lambda-mat.c: Likewise. * lambda-trans.c: Likewise. * lambda.h: Likewise. * langhooks.c: Likewise. * lcm.c: Likewise. * libgcov.c: Likewise. * lists.c: Likewise. * loop-doloop.c: Likewise. * loop-init.c: Likewise. * loop-invariant.c: Likewise. * loop-iv.c: Likewise. * loop-unroll.c: Likewise. * lower-subreg.c: Likewise. * lto-cgraph.c: Likewise. * lto-compress.c: Likewise. * lto-opts.c: Likewise. * lto-section-in.c: Likewise. * lto-section-out.c: Likewise. * lto-streamer-in.c: Likewise. * lto-streamer-out.c: Likewise. * lto-streamer.c: Likewise. * lto-streamer.h: Likewise. * lto-symtab.c: Likewise. * lto-wpa-fixup.c: Likewise. * matrix-reorg.c: Likewise. * mcf.c: Likewise. * mode-switching.c: Likewise. * modulo-sched.c: Likewise. * omega.c: Likewise. * omega.h: Likewise. * omp-low.c: Likewise. * optabs.c: Likewise. * optabs.h: Likewise. * opts-common.c: Likewise. * opts.c: Likewise. * params.def: Likewise. * params.h: Likewise. * passes.c: Likewise. * plugin.c: Likewise. * postreload-gcse.c: Likewise. * postreload.c: Likewise. * predict.c: Likewise. * predict.def: Likewise. * pretty-print.c: Likewise. * pretty-print.h: Likewise. * print-rtl.c: Likewise. * print-tree.c: Likewise. * profile.c: Likewise. * read-rtl.c: Likewise. * real.c: Likewise. * recog.c: Likewise. * reg-stack.c: Likewise. * regcprop.c: Likewise. * reginfo.c: Likewise. * regmove.c: Likewise. * regrename.c: Likewise. * regs.h: Likewise. * regstat.c: Likewise. * reload.c: Likewise. * reload1.c: Likewise. * resource.c: Likewise. * rtl.c: Likewise. * rtl.def: Likewise. * rtl.h: Likewise. * rtlanal.c: Likewise. * sbitmap.c: Likewise. * sched-deps.c: Likewise. * sched-ebb.c: Likewise. * sched-int.h: Likewise. * sched-rgn.c: Likewise. * sched-vis.c: Likewise. * sdbout.c: Likewise. * sel-sched-dump.c: Likewise. * sel-sched-dump.h: Likewise. * sel-sched-ir.c: Likewise. * sel-sched-ir.h: Likewise. * sel-sched.c: Likewise. * sel-sched.h: Likewise. * sese.c: Likewise. * sese.h: Likewise. * simplify-rtx.c: Likewise. * stack-ptr-mod.c: Likewise. * stmt.c: Likewise. * stor-layout.c: Likewise. * store-motion.c: Likewise. * stringpool.c: Likewise. * stub-objc.c: Likewise. * sync-builtins.def: Likewise. * target-def.h: Likewise. * target.h: Likewise. * targhooks.c: Likewise. * targhooks.h: Likewise. * timevar.c: Likewise. * tlink.c: Likewise. * toplev.c: Likewise. * toplev.h: Likewise. * tracer.c: Likewise. * tree-affine.c: Likewise. * tree-affine.h: Likewise. * tree-browser.def: Likewise. * tree-call-cdce.c: Likewise. * tree-cfg.c: Likewise. * tree-cfgcleanup.c: Likewise. * tree-chrec.c: Likewise. * tree-chrec.h: Likewise. * tree-complex.c: Likewise. * tree-data-ref.c: Likewise. * tree-data-ref.h: Likewise. * tree-dfa.c: Likewise. * tree-dump.c: Likewise. * tree-dump.h: Likewise. * tree-eh.c: Likewise. * tree-flow-inline.h: Likewise. * tree-flow.h: Likewise. * tree-if-conv.c: Likewise. * tree-inline.c: Likewise. * tree-into-ssa.c: Likewise. * tree-loop-distribution.c: Likewise. * tree-loop-linear.c: Likewise. * tree-mudflap.c: Likewise. * tree-nested.c: Likewise. * tree-nomudflap.c: Likewise. * tree-nrv.c: Likewise. * tree-object-size.c: Likewise. * tree-optimize.c: Likewise. * tree-outof-ssa.c: Likewise. * tree-parloops.c: Likewise. * tree-pass.h: Likewise. * tree-phinodes.c: Likewise. * tree-predcom.c: Likewise. * tree-pretty-print.c: Likewise. * tree-profile.c: Likewise. * tree-scalar-evolution.c: Likewise. * tree-ssa-address.c: Likewise. * tree-ssa-alias.c: Likewise. * tree-ssa-ccp.c: Likewise. * tree-ssa-coalesce.c: Likewise. * tree-ssa-copy.c: Likewise. * tree-ssa-copyrename.c: Likewise. * tree-ssa-dce.c: Likewise. * tree-ssa-dom.c: Likewise. * tree-ssa-dse.c: Likewise. * tree-ssa-forwprop.c: Likewise. * tree-ssa-ifcombine.c: Likewise. * tree-ssa-live.c: Likewise. * tree-ssa-live.h: Likewise. * tree-ssa-loop-ch.c: Likewise. * tree-ssa-loop-im.c: Likewise. * tree-ssa-loop-ivcanon.c: Likewise. * tree-ssa-loop-ivopts.c: Likewise. * tree-ssa-loop-manip.c: Likewise. * tree-ssa-loop-niter.c: Likewise. * tree-ssa-loop-prefetch.c: Likewise. * tree-ssa-loop-unswitch.c: Likewise. * tree-ssa-loop.c: Likewise. * tree-ssa-math-opts.c: Likewise. * tree-ssa-operands.c: Likewise. * tree-ssa-operands.h: Likewise. * tree-ssa-phiopt.c: Likewise. * tree-ssa-phiprop.c: Likewise. * tree-ssa-pre.c: Likewise. * tree-ssa-propagate.c: Likewise. * tree-ssa-reassoc.c: Likewise. * tree-ssa-sccvn.c: Likewise. * tree-ssa-sink.c: Likewise. * tree-ssa-structalias.c: Likewise. * tree-ssa-ter.c: Likewise. * tree-ssa-threadedge.c: Likewise. * tree-ssa-threadupdate.c: Likewise. * tree-ssa-uncprop.c: Likewise. * tree-ssa.c: Likewise. * tree-ssanames.c: Likewise. * tree-switch-conversion.c: Likewise. * tree-tailcall.c: Likewise. * tree-vect-data-refs.c: Likewise. * tree-vect-generic.c: Likewise. * tree-vect-loop-manip.c: Likewise. * tree-vect-loop.c: Likewise. * tree-vect-patterns.c: Likewise. * tree-vect-slp.c: Likewise. * tree-vect-stmts.c: Likewise. * tree-vectorizer.c: Likewise. * tree-vectorizer.h: Likewise. * tree-vrp.c: Likewise. * tree.c: Likewise. * tree.def: Likewise. * tree.h: Likewise. * treestruct.def: Likewise. * unwind-compat.c: Likewise. * unwind-dw2-fde-glibc.c: Likewise. * unwind-dw2.c: Likewise. * value-prof.c: Likewise. * value-prof.h: Likewise. * var-tracking.c: Likewise. * varasm.c: Likewise. * varpool.c: Likewise. * vec.c: Likewise. * vec.h: Likewise. * vmsdbgout.c: Likewise. * web.c: Likewise. * xcoffout.c: Likewise. From-SVN: r154645
548 lines
13 KiB
C
548 lines
13 KiB
C
/* File format for coverage information
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Copyright (C) 1996, 1997, 1998, 2000, 2002, 2003, 2004, 2005, 2007,
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2008 Free Software Foundation, Inc.
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Contributed by Bob Manson <manson@cygnus.com>.
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Completely remangled by Nathan Sidwell <nathan@codesourcery.com>.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* Routines declared in gcov-io.h. This file should be #included by
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another source file, after having #included gcov-io.h. */
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#if !IN_GCOV
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static void gcov_write_block (unsigned);
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static gcov_unsigned_t *gcov_write_words (unsigned);
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#endif
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static const gcov_unsigned_t *gcov_read_words (unsigned);
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#if !IN_LIBGCOV
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static void gcov_allocate (unsigned);
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#endif
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static inline gcov_unsigned_t from_file (gcov_unsigned_t value)
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{
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#if !IN_LIBGCOV
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if (gcov_var.endian)
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{
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value = (value >> 16) | (value << 16);
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value = ((value & 0xff00ff) << 8) | ((value >> 8) & 0xff00ff);
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}
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#endif
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return value;
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}
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/* Open a gcov file. NAME is the name of the file to open and MODE
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indicates whether a new file should be created, or an existing file
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opened. If MODE is >= 0 an existing file will be opened, if
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possible, and if MODE is <= 0, a new file will be created. Use
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MODE=0 to attempt to reopen an existing file and then fall back on
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creating a new one. If MODE < 0, the file will be opened in
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read-only mode. Otherwise it will be opened for modification.
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Return zero on failure, >0 on opening an existing file and <0 on
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creating a new one. */
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GCOV_LINKAGE int
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#if IN_LIBGCOV
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gcov_open (const char *name)
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#else
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gcov_open (const char *name, int mode)
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#endif
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{
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#if IN_LIBGCOV
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const int mode = 0;
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#endif
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#if GCOV_LOCKED
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struct flock s_flock;
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int fd;
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s_flock.l_whence = SEEK_SET;
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s_flock.l_start = 0;
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s_flock.l_len = 0; /* Until EOF. */
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s_flock.l_pid = getpid ();
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#endif
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gcc_assert (!gcov_var.file);
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gcov_var.start = 0;
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gcov_var.offset = gcov_var.length = 0;
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gcov_var.overread = -1u;
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gcov_var.error = 0;
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#if !IN_LIBGCOV
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gcov_var.endian = 0;
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#endif
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#if GCOV_LOCKED
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if (mode > 0)
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{
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/* Read-only mode - acquire a read-lock. */
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s_flock.l_type = F_RDLCK;
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fd = open (name, O_RDONLY);
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}
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else
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{
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/* Write mode - acquire a write-lock. */
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s_flock.l_type = F_WRLCK;
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fd = open (name, O_RDWR | O_CREAT, 0666);
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}
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if (fd < 0)
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return 0;
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while (fcntl (fd, F_SETLKW, &s_flock) && errno == EINTR)
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continue;
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gcov_var.file = fdopen (fd, (mode > 0) ? "rb" : "r+b");
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if (!gcov_var.file)
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{
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close (fd);
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return 0;
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}
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if (mode > 0)
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gcov_var.mode = 1;
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else if (mode == 0)
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{
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struct stat st;
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if (fstat (fd, &st) < 0)
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{
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fclose (gcov_var.file);
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gcov_var.file = 0;
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return 0;
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}
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if (st.st_size != 0)
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gcov_var.mode = 1;
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else
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gcov_var.mode = mode * 2 + 1;
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}
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else
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gcov_var.mode = mode * 2 + 1;
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#else
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if (mode >= 0)
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gcov_var.file = fopen (name, (mode > 0) ? "rb" : "r+b");
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if (gcov_var.file)
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gcov_var.mode = 1;
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else if (mode <= 0)
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{
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gcov_var.file = fopen (name, "w+b");
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if (gcov_var.file)
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gcov_var.mode = mode * 2 + 1;
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}
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if (!gcov_var.file)
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return 0;
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#endif
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setbuf (gcov_var.file, (char *)0);
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return 1;
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}
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/* Close the current gcov file. Flushes data to disk. Returns nonzero
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on failure or error flag set. */
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GCOV_LINKAGE int
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gcov_close (void)
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{
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if (gcov_var.file)
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{
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#if !IN_GCOV
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if (gcov_var.offset && gcov_var.mode < 0)
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gcov_write_block (gcov_var.offset);
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#endif
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fclose (gcov_var.file);
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gcov_var.file = 0;
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gcov_var.length = 0;
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}
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#if !IN_LIBGCOV
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free (gcov_var.buffer);
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gcov_var.alloc = 0;
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gcov_var.buffer = 0;
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#endif
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gcov_var.mode = 0;
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return gcov_var.error;
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}
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#if !IN_LIBGCOV
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/* Check if MAGIC is EXPECTED. Use it to determine endianness of the
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file. Returns +1 for same endian, -1 for other endian and zero for
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not EXPECTED. */
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GCOV_LINKAGE int
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gcov_magic (gcov_unsigned_t magic, gcov_unsigned_t expected)
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{
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if (magic == expected)
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return 1;
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magic = (magic >> 16) | (magic << 16);
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magic = ((magic & 0xff00ff) << 8) | ((magic >> 8) & 0xff00ff);
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if (magic == expected)
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{
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gcov_var.endian = 1;
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return -1;
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}
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return 0;
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}
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#endif
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#if !IN_LIBGCOV
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static void
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gcov_allocate (unsigned length)
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{
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size_t new_size = gcov_var.alloc;
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if (!new_size)
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new_size = GCOV_BLOCK_SIZE;
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new_size += length;
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new_size *= 2;
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gcov_var.alloc = new_size;
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gcov_var.buffer = XRESIZEVAR (gcov_unsigned_t, gcov_var.buffer, new_size << 2);
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}
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#endif
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#if !IN_GCOV
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/* Write out the current block, if needs be. */
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static void
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gcov_write_block (unsigned size)
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{
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if (fwrite (gcov_var.buffer, size << 2, 1, gcov_var.file) != 1)
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gcov_var.error = 1;
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gcov_var.start += size;
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gcov_var.offset -= size;
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}
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/* Allocate space to write BYTES bytes to the gcov file. Return a
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pointer to those bytes, or NULL on failure. */
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static gcov_unsigned_t *
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gcov_write_words (unsigned words)
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{
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gcov_unsigned_t *result;
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gcc_assert (gcov_var.mode < 0);
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#if IN_LIBGCOV
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if (gcov_var.offset >= GCOV_BLOCK_SIZE)
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{
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gcov_write_block (GCOV_BLOCK_SIZE);
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if (gcov_var.offset)
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{
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gcc_assert (gcov_var.offset == 1);
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memcpy (gcov_var.buffer, gcov_var.buffer + GCOV_BLOCK_SIZE, 4);
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}
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}
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#else
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if (gcov_var.offset + words > gcov_var.alloc)
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gcov_allocate (gcov_var.offset + words);
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#endif
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result = &gcov_var.buffer[gcov_var.offset];
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gcov_var.offset += words;
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return result;
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}
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/* Write unsigned VALUE to coverage file. Sets error flag
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appropriately. */
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GCOV_LINKAGE void
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gcov_write_unsigned (gcov_unsigned_t value)
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{
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gcov_unsigned_t *buffer = gcov_write_words (1);
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buffer[0] = value;
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}
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/* Write counter VALUE to coverage file. Sets error flag
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appropriately. */
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#if IN_LIBGCOV
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GCOV_LINKAGE void
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gcov_write_counter (gcov_type value)
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{
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gcov_unsigned_t *buffer = gcov_write_words (2);
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buffer[0] = (gcov_unsigned_t) value;
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if (sizeof (value) > sizeof (gcov_unsigned_t))
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buffer[1] = (gcov_unsigned_t) (value >> 32);
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else
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buffer[1] = 0;
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}
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#endif /* IN_LIBGCOV */
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#if !IN_LIBGCOV
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/* Write STRING to coverage file. Sets error flag on file
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error, overflow flag on overflow */
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GCOV_LINKAGE void
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gcov_write_string (const char *string)
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{
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unsigned length = 0;
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unsigned alloc = 0;
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gcov_unsigned_t *buffer;
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if (string)
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{
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length = strlen (string);
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alloc = (length + 4) >> 2;
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}
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buffer = gcov_write_words (1 + alloc);
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buffer[0] = alloc;
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buffer[alloc] = 0;
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memcpy (&buffer[1], string, length);
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}
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#endif
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|
#if !IN_LIBGCOV
|
|
/* Write a tag TAG and reserve space for the record length. Return a
|
|
value to be used for gcov_write_length. */
|
|
|
|
GCOV_LINKAGE gcov_position_t
|
|
gcov_write_tag (gcov_unsigned_t tag)
|
|
{
|
|
gcov_position_t result = gcov_var.start + gcov_var.offset;
|
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
|
|
|
buffer[0] = tag;
|
|
buffer[1] = 0;
|
|
|
|
return result;
|
|
}
|
|
|
|
/* Write a record length using POSITION, which was returned by
|
|
gcov_write_tag. The current file position is the end of the
|
|
record, and is restored before returning. Returns nonzero on
|
|
overflow. */
|
|
|
|
GCOV_LINKAGE void
|
|
gcov_write_length (gcov_position_t position)
|
|
{
|
|
unsigned offset;
|
|
gcov_unsigned_t length;
|
|
gcov_unsigned_t *buffer;
|
|
|
|
gcc_assert (gcov_var.mode < 0);
|
|
gcc_assert (position + 2 <= gcov_var.start + gcov_var.offset);
|
|
gcc_assert (position >= gcov_var.start);
|
|
offset = position - gcov_var.start;
|
|
length = gcov_var.offset - offset - 2;
|
|
buffer = (gcov_unsigned_t *) &gcov_var.buffer[offset];
|
|
buffer[1] = length;
|
|
if (gcov_var.offset >= GCOV_BLOCK_SIZE)
|
|
gcov_write_block (gcov_var.offset);
|
|
}
|
|
|
|
#else /* IN_LIBGCOV */
|
|
|
|
/* Write a tag TAG and length LENGTH. */
|
|
|
|
GCOV_LINKAGE void
|
|
gcov_write_tag_length (gcov_unsigned_t tag, gcov_unsigned_t length)
|
|
{
|
|
gcov_unsigned_t *buffer = gcov_write_words (2);
|
|
|
|
buffer[0] = tag;
|
|
buffer[1] = length;
|
|
}
|
|
|
|
/* Write a summary structure to the gcov file. Return nonzero on
|
|
overflow. */
|
|
|
|
GCOV_LINKAGE void
|
|
gcov_write_summary (gcov_unsigned_t tag, const struct gcov_summary *summary)
|
|
{
|
|
unsigned ix;
|
|
const struct gcov_ctr_summary *csum;
|
|
|
|
gcov_write_tag_length (tag, GCOV_TAG_SUMMARY_LENGTH);
|
|
gcov_write_unsigned (summary->checksum);
|
|
for (csum = summary->ctrs, ix = GCOV_COUNTERS_SUMMABLE; ix--; csum++)
|
|
{
|
|
gcov_write_unsigned (csum->num);
|
|
gcov_write_unsigned (csum->runs);
|
|
gcov_write_counter (csum->sum_all);
|
|
gcov_write_counter (csum->run_max);
|
|
gcov_write_counter (csum->sum_max);
|
|
}
|
|
}
|
|
#endif /* IN_LIBGCOV */
|
|
|
|
#endif /*!IN_GCOV */
|
|
|
|
/* Return a pointer to read BYTES bytes from the gcov file. Returns
|
|
NULL on failure (read past EOF). */
|
|
|
|
static const gcov_unsigned_t *
|
|
gcov_read_words (unsigned words)
|
|
{
|
|
const gcov_unsigned_t *result;
|
|
unsigned excess = gcov_var.length - gcov_var.offset;
|
|
|
|
gcc_assert (gcov_var.mode > 0);
|
|
if (excess < words)
|
|
{
|
|
gcov_var.start += gcov_var.offset;
|
|
#if IN_LIBGCOV
|
|
if (excess)
|
|
{
|
|
gcc_assert (excess == 1);
|
|
memcpy (gcov_var.buffer, gcov_var.buffer + gcov_var.offset, 4);
|
|
}
|
|
#else
|
|
memmove (gcov_var.buffer, gcov_var.buffer + gcov_var.offset, excess * 4);
|
|
#endif
|
|
gcov_var.offset = 0;
|
|
gcov_var.length = excess;
|
|
#if IN_LIBGCOV
|
|
gcc_assert (!gcov_var.length || gcov_var.length == 1);
|
|
excess = GCOV_BLOCK_SIZE;
|
|
#else
|
|
if (gcov_var.length + words > gcov_var.alloc)
|
|
gcov_allocate (gcov_var.length + words);
|
|
excess = gcov_var.alloc - gcov_var.length;
|
|
#endif
|
|
excess = fread (gcov_var.buffer + gcov_var.length,
|
|
1, excess << 2, gcov_var.file) >> 2;
|
|
gcov_var.length += excess;
|
|
if (gcov_var.length < words)
|
|
{
|
|
gcov_var.overread += words - gcov_var.length;
|
|
gcov_var.length = 0;
|
|
return 0;
|
|
}
|
|
}
|
|
result = &gcov_var.buffer[gcov_var.offset];
|
|
gcov_var.offset += words;
|
|
return result;
|
|
}
|
|
|
|
/* Read unsigned value from a coverage file. Sets error flag on file
|
|
error, overflow flag on overflow */
|
|
|
|
GCOV_LINKAGE gcov_unsigned_t
|
|
gcov_read_unsigned (void)
|
|
{
|
|
gcov_unsigned_t value;
|
|
const gcov_unsigned_t *buffer = gcov_read_words (1);
|
|
|
|
if (!buffer)
|
|
return 0;
|
|
value = from_file (buffer[0]);
|
|
return value;
|
|
}
|
|
|
|
/* Read counter value from a coverage file. Sets error flag on file
|
|
error, overflow flag on overflow */
|
|
|
|
GCOV_LINKAGE gcov_type
|
|
gcov_read_counter (void)
|
|
{
|
|
gcov_type value;
|
|
const gcov_unsigned_t *buffer = gcov_read_words (2);
|
|
|
|
if (!buffer)
|
|
return 0;
|
|
value = from_file (buffer[0]);
|
|
if (sizeof (value) > sizeof (gcov_unsigned_t))
|
|
value |= ((gcov_type) from_file (buffer[1])) << 32;
|
|
else if (buffer[1])
|
|
gcov_var.error = -1;
|
|
|
|
return value;
|
|
}
|
|
|
|
/* Read string from coverage file. Returns a pointer to a static
|
|
buffer, or NULL on empty string. You must copy the string before
|
|
calling another gcov function. */
|
|
|
|
#if !IN_LIBGCOV
|
|
GCOV_LINKAGE const char *
|
|
gcov_read_string (void)
|
|
{
|
|
unsigned length = gcov_read_unsigned ();
|
|
|
|
if (!length)
|
|
return 0;
|
|
|
|
return (const char *) gcov_read_words (length);
|
|
}
|
|
#endif
|
|
|
|
GCOV_LINKAGE void
|
|
gcov_read_summary (struct gcov_summary *summary)
|
|
{
|
|
unsigned ix;
|
|
struct gcov_ctr_summary *csum;
|
|
|
|
summary->checksum = gcov_read_unsigned ();
|
|
for (csum = summary->ctrs, ix = GCOV_COUNTERS_SUMMABLE; ix--; csum++)
|
|
{
|
|
csum->num = gcov_read_unsigned ();
|
|
csum->runs = gcov_read_unsigned ();
|
|
csum->sum_all = gcov_read_counter ();
|
|
csum->run_max = gcov_read_counter ();
|
|
csum->sum_max = gcov_read_counter ();
|
|
}
|
|
}
|
|
|
|
#if !IN_LIBGCOV
|
|
/* Reset to a known position. BASE should have been obtained from
|
|
gcov_position, LENGTH should be a record length. */
|
|
|
|
GCOV_LINKAGE void
|
|
gcov_sync (gcov_position_t base, gcov_unsigned_t length)
|
|
{
|
|
gcc_assert (gcov_var.mode > 0);
|
|
base += length;
|
|
if (base - gcov_var.start <= gcov_var.length)
|
|
gcov_var.offset = base - gcov_var.start;
|
|
else
|
|
{
|
|
gcov_var.offset = gcov_var.length = 0;
|
|
fseek (gcov_var.file, base << 2, SEEK_SET);
|
|
gcov_var.start = ftell (gcov_var.file) >> 2;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if IN_LIBGCOV
|
|
/* Move to a given position in a gcov file. */
|
|
|
|
GCOV_LINKAGE void
|
|
gcov_seek (gcov_position_t base)
|
|
{
|
|
gcc_assert (gcov_var.mode < 0);
|
|
if (gcov_var.offset)
|
|
gcov_write_block (gcov_var.offset);
|
|
fseek (gcov_var.file, base << 2, SEEK_SET);
|
|
gcov_var.start = ftell (gcov_var.file) >> 2;
|
|
}
|
|
#endif
|
|
|
|
#if IN_GCOV > 0
|
|
/* Return the modification time of the current gcov file. */
|
|
|
|
GCOV_LINKAGE time_t
|
|
gcov_time (void)
|
|
{
|
|
struct stat status;
|
|
|
|
if (fstat (fileno (gcov_var.file), &status))
|
|
return 0;
|
|
else
|
|
return status.st_mtime;
|
|
}
|
|
#endif /* IN_GCOV */
|