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[SV 63044] load: Update .LOADED if the setup function returns -1

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* src/load.c (load_file): Update .LOADED if setup returns non-0.
* tests/scripts/features/load: Change the return value based on an
environment variable.  Ensure that returning -1 still adds to
.LOADED.  Also add a test that verifies that make doesn't try to
rebuild the loaded file if -1 is returned.
This commit is contained in:
Dmitry Goncharov 2022-09-10 22:42:28 -04:00 committed by Paul Smith
parent 820210ab85
commit 77734be2af
2 changed files with 37 additions and 7 deletions
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5
src/load.c
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@ -211,8 +211,9 @@ load_file (const floc *flocp, const char **ldname, int noerror)
/* Invoke the symbol. */
r = (*symp) (flocp);
/* If it succeeded, add the load file to the loaded variable. */
if (r > 0)
/* If it succeeded, add the load file to the loaded variable.
Anything other than 0, including -1, is a success. */
if (r)
{
size_t loadlen = strlen (loaded);
char *newval = alloca (loadlen + strlen (*ldname) + 2);

39
tests/scripts/features/load
View File

@ -19,11 +19,10 @@ unlink(qw(testload.c testload.so));
open(my $F, '> testload.c') or die "open: testload.c: $!\n";
print $F <<'EOF' ;
#include <string.h>
#include <stdio.h>
#include "gnumake.h"
char* getenv (const char*);
int plugin_is_GPL_compatible;
int testload_gmk_setup (gmk_floc *);
@ -34,6 +33,8 @@ testload_gmk_setup (gmk_floc *pos)
{
(void)pos;
gmk_eval ("TESTLOAD = implicit", 0);
if (getenv("TESTAPI_KEEP"))
return -1;
return 1;
}
@ -42,6 +43,8 @@ explicit_setup (gmk_floc *pos)
{
(void)pos;
gmk_eval ("TESTLOAD = explicit", 0);
if (getenv("TESTAPI_KEEP"))
return -1;
return 1;
}
EOF
@ -79,7 +82,7 @@ all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
!,
'', "pre= post=testload.so explicit\n");
# TEST 4
# TEST 3
# Check multiple loads
run_make_test(q!
PRE := $(.LOADED)
@ -90,7 +93,7 @@ all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
!,
'', "pre= post=testload.so implicit\n");
# TEST 5
# TEST 4
# Check auto-rebuild of loaded file that's out of date
utouch(-10, 'testload.so');
touch('testload.c');
@ -115,6 +118,32 @@ all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
%.so: %.c ; @echo "rebuilding $@"; !.$sobuild,
'', "rebuilding testload.so\npre= post=testload.so explicit\n");
# sv 63044.
# Test that the loaded shared object is present in .LOADED when the setup
# routine returns -1.
$ENV{TESTAPI_KEEP} = 1;
run_make_test(q!
PRE := $(.LOADED)
load testload.so
POST := $(.LOADED)
all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
!,
'--warn-undefined-variables', "pre= post=testload.so implicit\n");
# Check that we don't auto-rebuild of loaded file that's out of date
# if we return -1 from the setup
utouch(-10, 'testload.so');
touch('testload.c');
$ENV{TESTAPI_KEEP} = 1;
run_make_test(q!
PRE := $(.LOADED)
load ./testload.so
POST := $(.LOADED)
all: ; @echo pre=$(PRE) post=$(POST) $(TESTLOAD)
testload.so: testload.c ; @echo "rebuilding $@"; !.$sobuild,
'', "pre= post=testload.so implicit\n");
unlink(qw(testload.c testload.so)) unless $keep;
# This tells the test driver that the perl test script executed properly.