now get rid of the run-time check, the idivwrapv nonsense, and straighten out lksh
This commit is contained in:
tg
parent
75a4809a3a
commit
5571430281
85
Build.sh
85
Build.sh
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@ -1,5 +1,5 @@
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#!/bin/sh
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srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.625 2013/03/24 00:56:17 tg Exp $'
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srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.626 2013/04/26 19:40:07 tg Exp $'
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#-
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# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
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# 2011, 2012, 2013
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@ -1532,7 +1532,7 @@ else
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#define EXTERN
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#define MKSH_INCLUDES_ONLY
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#include "sh.h"
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__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.625 2013/03/24 00:56:17 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.626 2013/04/26 19:40:07 tg Exp $");
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int main(void) { printf("Hello, World!\n"); return (0); }
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EOF
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case $cm in
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@ -1875,13 +1875,8 @@ cta(long_size_no_matter_of_signedness, sizeof(long) == sizeof(unsigned long));
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#ifndef MKSH_LEGACY_MODE
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/* the next assertion is probably not really needed */
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cta(ari_is_4_char, sizeof(mksh_ari_t) == 4);
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/* but the next two are; we REQUIRE signed integer wraparound */
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/* but this is */
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cta(ari_has_31_bit, 0 < (mksh_ari_t)(((((mksh_ari_t)1 << 15) << 15) - 1) * 2 + 1));
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#ifndef MKSH_GCC55009
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cta(ari_sign_32_bit_and_wrap,
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(mksh_ari_t)(((((mksh_ari_t)1 << 15) << 15) - 1) * 2 + 1) >
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(mksh_ari_t)(((((mksh_ari_t)1 << 15) << 15) - 1) * 2 + 2));
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#endif
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/* the next assertion is probably not really needed */
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cta(uari_is_4_char, sizeof(mksh_uari_t) == 4);
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/* but the next three are; we REQUIRE unsigned integer wraparound */
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@ -1894,6 +1889,8 @@ cta(uari_wrap_32_bit,
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/* these are always required */
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cta(ari_is_signed, (mksh_ari_t)-1 < (mksh_ari_t)0);
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cta(uari_is_unsigned, (mksh_uari_t)-1 > (mksh_uari_t)0);
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/* we require these to have the precisely same size and assume 2s complement */
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cta(ari_size_no_matter_of_signedness, sizeof(mksh_ari_t) == sizeof(mksh_uari_t));
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cta(sizet_size_no_matter_of_signedness, sizeof(ssize_t) == sizeof(size_t));
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cta(ptrdifft_sizet_same_size, sizeof(ptrdiff_t) == sizeof(size_t));
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@ -1903,13 +1900,9 @@ cta(ptrdifft_funcptr_same_size, sizeof(ptrdiff_t) == sizeof(void (*)(void)));
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cta(ptr_fits_in_long, sizeof(ptrdiff_t) <= sizeof(long));
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};
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#ifndef MKSH_LEGACY_MODE
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#ifndef MKSH_GCC55009
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#define NUM 22
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#else
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#define NUM 21
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#endif
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#else
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#define NUM 15
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#define NUM 16
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#endif
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char ctasserts_dblcheck[sizeof(struct ctasserts) == NUM ? 1 : -1];
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int main(void) { return (sizeof(ctasserts_dblcheck)); }
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@ -1956,71 +1949,6 @@ EOF
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esac
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fi
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#
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# runtime checks
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# once this is more than one, check if we can do runtime
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# checks (not cross-compiling) first to save on warnings
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#
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$e "${bi}run-time checks follow$ao, please ignore any weird errors"
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if ac_testnnd silent_idivwrapv '' '(run-time) whether signed integer division overflows wrap silently' <<-'EOF'
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#define MKSH_INCLUDES_ONLY
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#include "sh.h"
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#if !defined(MKSH_LEGACY_MODE) || HAVE_LONG_32BIT
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#define IDIVWRAPV_VL (mksh_uari_t)0x80000000UL
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#elif HAVE_LONG_64BIT
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#define IDIVWRAPV_VL (mksh_uari_t)0x8000000000000000UL
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#else
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# error "cannot check this"
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#endif
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#ifdef SIGFPE
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static void fpe_catcher(int) MKSH_A_NORETURN;
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#endif
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int main(int ac, char **av) {
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mksh_ari_t o1, o2, r1, r2;
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#ifdef SIGFPE
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signal(SIGFPE, fpe_catcher);
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#endif
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o1 = (mksh_ari_t)IDIVWRAPV_VL;
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o2 = -ac;
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r1 = o1 / o2;
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r2 = o1 % o2;
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if (r1 == o1 && r2 == 0) {
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printf("si");
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return (0);
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}
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printf("no %d %d %d %d %s", (int)o1, (int)o2, (int)r1,
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(int)r2, av[0]);
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return (1);
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}
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#ifdef SIGFPE
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static const char fpe_msg[] = "no, got SIGFPE, what were they smoking?";
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#define fpe_msglen (sizeof(fpe_msg) - 1)
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static void fpe_catcher(int sig MKSH_A_UNUSED) {
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_exit(write(1, fpe_msg, fpe_msglen) == fpe_msglen ? 2 : 3);
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}
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#endif
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EOF
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then
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if test $fv = 0; then
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echo "| hrm, compiling this failed, but we will just failback"
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else
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echo "| running test programme; this will fail if cross-compiling"
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echo "| in which case we will gracefully degrade to the default"
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./$tcfn >vv.out 2>&1
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rv=$?
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echo "| result: `cat vv.out`"
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fv=0
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test $rv = 0 && test x"`cat vv.out`" = x"si" && fv=1
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fi
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rmf conftest.c conftest.o ${tcfn}* vv.out
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ac_testdone
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fi
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ac_cppflags
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$e "${bi}end of run-time checks$ao"
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#
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# Compiler: Praeprocessor (only if needed)
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#
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@ -2400,7 +2328,6 @@ MKSH_DISABLE_DEPRECATED disable code paths scheduled for later removal
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MKSH_DISABLE_EXPERIMENTAL disable code not yet comfy for (LTS) snapshots
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MKSH_DISABLE_TTY_WARNING shut up warning about ctty if OS cant be fixed
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MKSH_DONT_EMIT_IDSTRING omit RCS IDs from binary
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MKSH_GCC55009 DANGER! see http://www.mirbsd.org/mksh.htm#p41
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MKSH_MIDNIGHTBSD01ASH_COMPAT set -o sh: additional compatibility quirk
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MKSH_NOPROSPECTOFWORK disable jobs, co-processes, etc. (do not use)
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MKSH_NOPWNAM skip PAM calls, for -static on eglibc, Solaris
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8
Makefile
8
Makefile
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@ -1,4 +1,4 @@
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# $MirOS: src/bin/mksh/Makefile,v 1.115 2013/03/24 00:56:19 tg Exp $
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# $MirOS: src/bin/mksh/Makefile,v 1.116 2013/04/26 19:40:09 tg Exp $
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#-
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# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
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# 2011, 2012, 2013
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@ -54,8 +54,7 @@ CPPFLAGS+= -DMKSH_ASSUME_UTF8 -DMKSH_DISABLE_DEPRECATED \
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-DHAVE_SETGROUPS=1 -DHAVE_STRERROR=0 -DHAVE_STRSIGNAL=0 \
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-DHAVE_STRLCPY=1 -DHAVE_FLOCK_DECL=1 -DHAVE_REVOKE_DECL=1 \
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-DHAVE_SYS_ERRLIST_DECL=1 -DHAVE_SYS_SIGLIST_DECL=1 \
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-DHAVE_PERSISTENT_HISTORY=1 -DHAVE_SILENT_IDIVWRAPV=0 \
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-DMKSH_BUILD_R=449
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-DHAVE_PERSISTENT_HISTORY=1 -DMKSH_BUILD_R=449
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CPPFLAGS+= -D${${PROG:L}_tf:C/(Mir${MAN:E}{0,1}){2}/4/:S/x/mksh_BUILD/:U}
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COPTS+= -std=c99 -Wall
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.endif
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@ -87,7 +86,7 @@ regress: ${PROG} check.pl check.t
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echo export FNORD=666 >regress-dir/.mkshrc
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HOME=$$(realpath regress-dir) perl ${.CURDIR}/check.pl \
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-s ${.CURDIR}/check.t -v -p ./${PROG} \
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-C shell:legacy-no,int:32,nodeprecated,fastbox
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-C shell:legacy-no,int:32,fastbox
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test-build: .PHONY
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-rm -rf build-dir
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@ -97,7 +96,6 @@ test-build: .PHONY
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.endif
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cd build-dir; env CC=${CC:Q} CFLAGS=${CFLAGS:M*:Q} \
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CPPFLAGS=${CPPFLAGS:M*:Q} LDFLAGS=${LDFLAGS:M*:Q} \
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HAVE_SILENT_IDIVWRAPV=0 \
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LIBS= NOWARN=-Wno-error TARGET_OS= CPP= /bin/sh \
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${.CURDIR}/Build.sh -Q -r ${_TBF} && ./test.sh -v -f
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