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re-vamp __attribute__ handling; let this pass on HP-UX bundled compiler

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as well as HP aCC
This commit is contained in:
tg
2009-12-12 22:27:10 +00:00
parent 0c3acb2374
commit 769e222586
11 changed files with 212 additions and 150 deletions
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80
Build.sh
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@@ -1,5 +1,5 @@
#!/bin/sh
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.432 2009/12/12 21:17:25 tg Exp $'
srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.433 2009/12/12 22:27:02 tg Exp $'
#-
# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009
# Thorsten Glaser <tg@mirbsd.org>
@@ -161,6 +161,8 @@ ac_testn() {
fi
test ugcc=$phase$ct && $CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN scn.c \
$LIBS 2>&1 | grep 'unrecogni[sz]ed' >/dev/null 2>&1 && fv=$fr
test uhpcc=$phase$ct && $CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN scn.c \
$LIBS 2>&1 | grep 'unsupported' >/dev/null 2>&1 && fv=$fr
rm -f scn.c scn.o ${tcfn}*
ac_testdone
}
@@ -785,7 +787,9 @@ test x"$i" = x"" && if test $ct = sunpro; then
ac_flags - 1 otwo -xO2 <x
rm -f x
elif test $ct = hpcc; then
phase=u
ac_flags 1 otwo +O2
phase=x
elif test $ct = xlc; then
ac_flags 1 othree "-O3 -qstrict"
test 1 = $HAVE_CAN_OTHREE || ac_flags 1 otwo -O2
@@ -816,8 +820,10 @@ elif test $ct = sunpro; then
ac_flags 1 v -v
ac_flags 1 xc99 -xc99 'for support of ISO C99'
elif test $ct = hpcc; then
phase=u
ac_flags 1 agcc -Agcc 'for support of GCC extensions'
ac_flags 1 ac99 -AC99 'for support of ISO C99'
phase=x
elif test $ct = dec; then
ac_flags 0 verb -verbose
ac_flags 1 rodata -readonly_strings
@@ -873,7 +879,50 @@ NOWARN=$DOWARN
#
# Compiler: check for stuff that only generates warnings
#
ac_test attribute '' 'for basic __attribute__((...)) support' <<-'EOF'
ac_test attribute_bounded '' 'for __attribute__((bounded))' <<-'EOF'
#if defined(__GNUC__) && (__GNUC__ < 2)
/* force a failure: gcc 1.42 has a false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <string.h>
#undef __attribute__
int xcopy(const void *, void *, size_t)
__attribute__((bounded (buffer, 1, 3)))
__attribute__((bounded (buffer, 2, 3)));
int main(int ac, char *av[]) { return (xcopy(av[0], av[--ac], 1)); }
int xcopy(const void *s, void *d, size_t n) {
memmove(d, s, n); return ((int)n);
}
#endif
EOF
ac_test attribute_format '' 'for __attribute__((format))' <<-'EOF'
#if defined(__GNUC__) && (__GNUC__ < 2)
/* force a failure: gcc 1.42 has a false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
#include <stdio.h>
#undef __attribute__
#undef printf
extern int printf(const char *format, ...)
__attribute__((format (printf, 1, 2)));
int main(int ac, char **av) { return (printf("%s%d", *av, ac)); }
#endif
EOF
ac_test attribute_nonnull '' 'for __attribute__((nonnull))' <<-'EOF'
#if defined(__GNUC__) && (__GNUC__ < 2)
/* force a failure: gcc 1.42 has a false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
int foo(char *s1, char *s2) __attribute__((nonnull));
int bar(char *s1, char *s2) __attribute__((nonnull (1, 2)));
int baz(char *s) __attribute__((nonnull (1)));
int foo(char *s1, char *s2) { return (bar(s2, s1)); }
int bar(char *s1, char *s2) { return (baz(s1) - baz(s2)); }
int baz(char *s) { return (*s); }
int main(int ac, char **av) { return (ac == foo(av[0], av[ac-1])); }
#endif
EOF
ac_test attribute_noreturn '' 'for __attribute__((noreturn))' <<-'EOF'
#if defined(__GNUC__) && (__GNUC__ < 2)
/* force a failure: gcc 1.42 has a false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
@@ -885,22 +934,23 @@ ac_test attribute '' 'for basic __attribute__((...)) support' <<-'EOF'
void fnord(void) { exit(0); }
#endif
EOF
ac_test attribute_bounded attribute 0 'for __attribute__((bounded))' <<-'EOF'
#include <string.h>
#undef __attribute__
int xcopy(const void *, void *, size_t)
__attribute__((bounded (buffer, 1, 3)))
__attribute__((bounded (buffer, 2, 3)));
int main(int ac, char *av[]) { return (xcopy(av[0], av[--ac], 1)); }
int xcopy(const void *s, void *d, size_t n) {
memmove(d, s, n); return ((int)n);
}
ac_test attribute_unused '' 'for __attribute__((unused))' <<-'EOF'
#if defined(__GNUC__) && (__GNUC__ < 2)
/* force a failure: gcc 1.42 has a false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
int main(int ac __attribute__((unused)), char **av
__attribute__((unused))) { return (0); }
#endif
EOF
ac_test attribute_used attribute 0 'for __attribute__((used))' <<-'EOF'
ac_test attribute_used '' 'for __attribute__((used))' <<-'EOF'
#if defined(__GNUC__) && (__GNUC__ < 2)
/* force a failure: gcc 1.42 has a false positive here */
int main(void) { return (thiswillneverbedefinedIhope()); }
#else
static const char fnord[] __attribute__((used)) = "42";
int main(void) { return (0); }
#endif
EOF
# End of tests run with -Werror