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* src/job.c (new_job): [SV 63510] Trace phony prerequisite rebuilds

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This commit is contained in:
Paul Smith 2022-12-17 14:01:02 -05:00
parent a89eef87e6
commit c0023150f1
1 changed files with 44 additions and 5 deletions
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49
src/job.c
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@ -1893,7 +1893,6 @@ new_job (struct file *file)
Use message here so that changes to working directories are logged. */
if (ISDB (DB_WHY))
{
char *newer = allocated_variable_expand_for_file ("$?", c->file);
const char *nm;
if (! cmds->fileinfo.filenm)
@ -1905,11 +1904,51 @@ new_job (struct file *file)
nm = n;
}
OSSS (message, 0,
_("%s: update target '%s' due to: %s"), nm, c->file->name,
newer[0] == '\0' ? _("target does not exist") : newer);
if (c->file->phony)
OSS (message, 0, _("%s: update target '%s' due to: target is .PHONY"),
nm, c->file->name);
else if (c->file->last_mtime == NONEXISTENT_MTIME)
OSS (message, 0,
_("%s: update target '%s' due to: target does not exist"),
nm, c->file->name);
else
{
char *newer = allocated_variable_expand_for_file ("$?", c->file);
if (newer[0] != '\0')
{
OSSS (message, 0, _("%s: update target '%s' due to: %s"),
nm, c->file->name, newer);
free (newer);
}
else
{
/* One or more files didn't exist, and didn't get created. */
size_t len = 0;
struct dep *d;
free (newer);
for (d = c->file->deps; d != NULL; d = d->next)
if (d->file->last_mtime == NONEXISTENT_MTIME)
len += strlen (d->file->name) + 1;
if (!len)
OSS (message, 0,
_("%s: update target '%s' due to: unknown reasons"),
nm, c->file->name);
else
{
char *cp = newer = alloca (len);
for (d = c->file->deps; d != NULL; d = d->next)
if (d->file->last_mtime == NONEXISTENT_MTIME)
{
if (cp > newer)
*(cp++) = ' ';
cp = stpcpy (cp, d->file->name);
}
OSSS (message, 0, _("%s: update target '%s' due to: %s"),
nm, c->file->name, newer);
}
}
}
}
/* The job is now primed. Start it running.