[gcov] Simplify file interface

[Nathan Sidwell]

John David Anglin wrote:
> With todays trunk on hppa64-hp-hpux11.11 and hppa-unknown-linux-gnu,
> the following warning occurs which causes a bootstrap failure:
> 
> stage1/xgcc -Bstage1/ -B/home/dave/opt/gnu/hppa-linux/bin/ -c   -g -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Werror -fno-common   -DHAVE_CONFIG_H    -I. -I. -I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/config -I../../gcc/gcc/../include ../../gcc/gcc/profile.c -o profile.o
> ../../gcc/gcc/profile.c: In function `read_counts_file':
> ../../gcc/gcc/profile.c:277: warning: `checksum' might be used uninitialized in this function
I see Geoff fixed it first, thanks!

nathan

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Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
          The voices in my head said this was stupid too
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