[RFC] Remove files in make clean

[Yao Qi <yao at codesourcery dot com>]

Hi,
I am looking at how 'make clean' in testsuite/ directory remove files
generated during testing.  We manually maintain a list of
executables and shared libraries in Makefile.in, and they are removed
in 'make clean'.  However, the list will be stale as the code evolves.
I am wondering a better approach than the current one.  I find
that name of most the executables is the same as the name of .exp or
.c file, so I modify clean target in testsuite/Makefile.in to delete
executables according to the name of .exp and .c file, in a
speculative way.  As a result, the manually maintained list in
testsuite/gdb.XXX/Makefile.in is shorter, only executables, which are
not covered by the speculation, should be listed.  So this approach
is a hybrid approach, that is most of the executables can be removed,
without any special care and special care is needed for the rest of them.

This is a RFC, because I'd like ask people's opinion on this.  If it
is good, I'll update other gdb.XXX/Makefile.in.

gdb/testsuite:

2014-11-17  Yao Qi  <yao@codesourcery.com>

	* Makefile.in (clean):  Remove files according to .exp and .c
	file name in srcdir.
	* gdb.base/Makefile.in (EXECUTABLES): Remove some entries.
---
 gdb/testsuite/Makefile.in          |  2 ++
 gdb/testsuite/gdb.base/Makefile.in | 61 +++++++++++++-------------------------
 2 files changed, 22 insertions(+), 41 deletions(-)

diff --git a/gdb/testsuite/Makefile.in b/gdb/testsuite/Makefile.in
index 1c923cd..bf213eb 100644
--- a/gdb/testsuite/Makefile.in
+++ b/gdb/testsuite/Makefile.in
@@ -242,6 +242,8 @@ clean mostlyclean:
 	-rm -f *.dwo *.dwp
 	-rm -rf outputs temp cache
 	-rm -f read1.so expect-read1
+	-find ${srcdir} -name '*.exp' | sed "s/^.*testsuite\/\(.*\)\.exp/\1/" | xargs rm -rf
+	-find ${srcdir} -name '*.c' | sed "s/^.*testsuite\/\(.*\)\.c/\1/" | xargs rm -rf
 	if [ x"${ALL_SUBDIRS}" != x ] ; then \
 	    for dir in ${ALL_SUBDIRS}; \
 	    do \
diff --git a/gdb/testsuite/gdb.base/Makefile.in b/gdb/testsuite/gdb.base/Makefile.in
index dda3169..8378994 100644
--- a/gdb/testsuite/gdb.base/Makefile.in
+++ b/gdb/testsuite/gdb.base/Makefile.in
@@ -1,49 +1,28 @@
 VPATH = @srcdir@
 srcdir = @srcdir@
 
-EXECUTABLES = a2-run advance all-types annota1 annota1-watch_thread_num \
-	annota3 anon args arrayidx async attach attach-pie-misread \
-	attach2 auxv bang\! bfp-test bigcore bitfields bitfields2 \
-	break break-always break-entry break-interp-test breako2 \
-	breakpoint-shadow break-on-linker-gcd-function \
-	call-ar-st call-rt-st call-sc-t* call-signals \
-	call-strs callexit callfuncs callfwmall charset checkpoint \
-	chng-syms code_elim1 code_elim2 commands compiler completion complex \
-	condbreak consecutive constvars coremaker cursal cvexpr \
-	dbx-test del disasm-end-cu display dprintf-pending dump dup-sect \
+EXECUTABLES = annota1-watch_thread_num \
+	anon \
+	bang\! \
+	break-interp-test breako2 \
+	call-sc-t* \
+	callfwmall \
+	compiler \
+	dbx-test \
 	dup-sect.debug \
-	dup-sect.stripped ending-run execd-prog expand-psymtabs exprs \
-	fileio find finish fixsection float foll-exec foll-fork foll-vfork \
-	frame-args freebpcmd fullname funcargs gcore \
+	dup-sect.stripped \
 	gcore-buffer-overflow-012* \
-	gdb1090 gdb11530 gdb11531 gdb1250 gdb1555-main gdb1821 gdbvars \
-	hashline1 hashline2 hashline3 hbreak hook-stop-continue \
-	hook-stop-frame huge included infnan info-target int-type \
-	interrupt jit-main jump label langs lineinc list longjmp long_long \
-	macscp mips_pro miscexprs moribund-step multi-forks nodebug \
-	nofield nostdlib opaque overlays pc-fp pending permission \
-	pie-execl1 pie-execl2 pointers pointers2 pr11022 prelinkt \
-	prelinkt.debug prelinkt.stripped printcmds prologue psymtab \
-	ptr-typedef ptype randomize recurse relational relativedebug \
-	reread reread1 restore return return-nodebug-* return2 run \
-	savedregs scope section_command sep sepdebug sepdebug.stripped \
-	sepdebug2 sepdebug2.debug sepdebug2.stripped sepsymtab \
-	sepsymtab.debug sepsymtab.stripped setshow setvar shmain shreloc \
-	sigall sigaltstack sigbpt sigchld siginfo siginfo-addr \
-	siginfo-infcall siginfo-obj signals signull sigrepeat sigstep \
-	sizeof skip skip-solib solib solib-corrupted solib-display-main \
-	solib-nodir solib-overlap-main-0x40000000 solib-symbol-main solib-weak \
-	solib-weak-lib2 solib_sl so-impl-ld so-indr-cl \
-	stack-checking start step-break step-bt step-line step-resume-infcall \
-	step-test store structs-t* structs2 structs3 \
-	symbol-without-target_section term tui-layout twice-tmp \
-	type-opaque-main ui-redirect unload until unwindonsignal \
-	valgrind-db-attach value-double-free varargs vforked-prog \
-	volatile watch-cond watch-cond-infcall watch-non-mem watch-read \
-	watch-vfork watch_thread_num watchpoint watchpoint-cond-gone \
-	watchpoint-hw watchpoint-hw-hit-once watchpoint-solib watchpoints \
-	wchar whatis whatis-exp catch-syscall \
-	pr10179 gnu_vector
+	permission \
+	pie-execl1 pie-execl2 pointers2 prelinkt \
+	prelinkt.debug prelinkt.stripped \
+	reread1 return-nodebug-* \
+	section_command sepdebug.stripped \
+	sepdebug2 sepdebug2.debug sepdebug2.stripped \
+	sepsymtab.debug sepsymtab.stripped \
+	solib-overlap-main-0x40000000 \
+	solib-weak-lib2 solib_sl \
+	structs-t* \
+	twice-tmp
 
 MISCELLANEOUS = coremmap.data dprintf-pendshr.sl ../foobar.baz fixsectshr.sl \
 	pendshr.sl shreloc1.sl shreloc2.sl twice-tmp.c \
-- 
1.9.3