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Use ENULLLOOP to handle EINTR during realpath(). Fixes Savannah bug #38420

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This commit is contained in:
Paul Smith 2013-02-28 00:55:15 -05:00
parent 5058a94ee7
commit 450b7e1a3d
4 changed files with 28 additions and 13 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2013-02-28 Paul Smith <psmith@gnu.org>
* function.c (func_realpath): On Solaris (at least) realpath() can
fail due to EINTR, so loop it. Fixes Savannah bug #38420.
2013-02-25 Paul Smith <psmith@gnu.org>
Add a proposed supported API for GNU make loaded objects.

1
dep.h
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@ -87,4 +87,5 @@ struct dep *copy_dep_chain (const struct dep *d);
void free_dep_chain (struct dep *d);
void free_ns_chain (struct nameseq *n);
struct dep *read_all_makefiles (const char **makefiles);
void eval_buffer (char *buffer, const gmk_floc *floc);
int update_goal_chain (struct dep *goals);

34
function.c
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@ -2070,28 +2070,35 @@ func_realpath (char *o, char **argv, const char *funcname UNUSED)
const char *path = 0;
int doneany = 0;
unsigned int len = 0;
struct stat st;
PATH_VAR (in);
PATH_VAR (out);
while ((path = find_next_token (&p, &len)) != 0)
{
if (len < GET_PATH_MAX)
{
char *rp;
struct stat st;
PATH_VAR (in);
PATH_VAR (out);
strncpy (in, path, len);
in[len] = '\0';
if (
#ifdef HAVE_REALPATH
realpath (in, out)
ENULLLOOP (rp, realpath (in, out));
#else
abspath (in, out)
rp = abspath (in, out);
#endif
&& stat (out, &st) == 0)
if (rp)
{
o = variable_buffer_output (o, out, strlen (out));
o = variable_buffer_output (o, " ", 1);
doneany = 1;
int r;
EINTRLOOP (r, stat (out, &st));
if (r == 0)
{
o = variable_buffer_output (o, out, strlen (out));
o = variable_buffer_output (o, " ", 1);
doneany = 1;
}
}
}
}
@ -2150,13 +2157,14 @@ func_abspath (char *o, char **argv, const char *funcname UNUSED)
const char *path = 0;
int doneany = 0;
unsigned int len = 0;
PATH_VAR (in);
PATH_VAR (out);
while ((path = find_next_token (&p, &len)) != 0)
{
if (len < GET_PATH_MAX)
{
PATH_VAR (in);
PATH_VAR (out);
strncpy (in, path, len);
in[len] = '\0';
@ -2191,7 +2199,7 @@ func_abspath (char *o, char **argv, const char *funcname UNUSED)
static char *func_call (char *o, char **argv, const char *funcname);
#define FT_ENTRY(_name, _min, _max, _exp, _func) \
{ (_func), STRING_SIZE_TUPLE(_name), (_min), (_max), (_exp), 0 }
{ { (_func) }, STRING_SIZE_TUPLE(_name), (_min), (_max), (_exp), 0 }
static struct function_table_entry function_table_init[] =
{

1
loadapi.c
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@ -20,6 +20,7 @@ this program. If not, see <http://www.gnu.org/licenses/>. */
#include "filedef.h"
#include "variable.h"
#include "dep.h"
/* Evaluate a buffer as make syntax.
Ideally eval_buffer() will take const char *, but not yet. */