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* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: make claim_file_handler thread-safe
@ 2022-06-16 6:48 Martin Liska
0 siblings, 0 replies; 4+ messages in thread
From: Martin Liska @ 2022-06-16 6:48 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:cb5cee0d6ab0841a3382be39209420e9bf87eb89
commit cb5cee0d6ab0841a3382be39209420e9bf87eb89
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:18:41 2022 +0200
lto-plugin: make claim_file_handler thread-safe
lto-plugin/ChangeLog:
* lto-plugin.c (plugin_lock): New lock.
(claim_file_handler): Use mutex for critical section.
(onload): Initialize mutex.
Diff:
---
lto-plugin/lto-plugin.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 00b760636dc..13118c4983c 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -55,6 +55,7 @@ along with this program; see the file COPYING3. If not see
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
+#include <pthread.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
@@ -157,6 +158,9 @@ enum symbol_style
ss_uscore, /* Underscore prefix all symbols. */
};
+/* Plug-in mutex. */
+static pthread_mutex_t plugin_lock;
+
static char *arguments_file_name;
static ld_plugin_register_claim_file register_claim_file;
static ld_plugin_register_all_symbols_read register_all_symbols_read;
@@ -1262,15 +1266,18 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
lto_file.symtab.syms);
check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
+ pthread_mutex_lock (&plugin_lock);
num_claimed_files++;
claimed_files =
xrealloc (claimed_files,
num_claimed_files * sizeof (struct plugin_file_info));
claimed_files[num_claimed_files - 1] = lto_file;
+ pthread_mutex_unlock (&plugin_lock);
*claimed = 1;
}
+ pthread_mutex_lock (&plugin_lock);
if (offload_files == NULL)
{
/* Add dummy item to the start of the list. */
@@ -1333,11 +1340,12 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
offload_files_last_lto = ofld;
num_offload_files++;
}
+ pthread_mutex_unlock (&plugin_lock);
goto cleanup;
err:
- non_claimed_files++;
+ __atomic_fetch_add (&non_claimed_files, 1, __ATOMIC_RELAXED);
free (lto_file.name);
cleanup:
@@ -1415,6 +1423,12 @@ onload (struct ld_plugin_tv *tv)
struct ld_plugin_tv *p;
enum ld_plugin_status status;
+ if (pthread_mutex_init (&plugin_lock, NULL) != 0)
+ {
+ fprintf (stderr, "mutex init failed\n");
+ abort ();
+ }
+
p = tv;
while (p->tv_tag)
{
^ permalink raw reply [flat|nested] 4+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: make claim_file_handler thread-safe
@ 2022-06-27 8:07 Martin Liska
0 siblings, 0 replies; 4+ messages in thread
From: Martin Liska @ 2022-06-27 8:07 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:bdbb79473de638a100936701738a432ae1f4dc01
commit bdbb79473de638a100936701738a432ae1f4dc01
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:18:41 2022 +0200
lto-plugin: make claim_file_handler thread-safe
lto-plugin/ChangeLog:
* lto-plugin.c (plugin_lock): New lock.
(claim_file_handler): Use mutex for critical section.
(onload): Initialize mutex.
Diff:
---
lto-plugin/config.h.in | 3 +++
lto-plugin/configure | 17 +++++++++++++++--
lto-plugin/configure.ac | 7 +++++++
lto-plugin/lto-plugin.c | 20 ++++++++++++++++++++
4 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/lto-plugin/config.h.in b/lto-plugin/config.h.in
index ddbde7619d5..029e782f1ee 100644
--- a/lto-plugin/config.h.in
+++ b/lto-plugin/config.h.in
@@ -9,6 +9,9 @@
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
+/* Define to 1 if pthread.h is present. */
+#undef HAVE_PTHREAD_H
+
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
diff --git a/lto-plugin/configure b/lto-plugin/configure
index b820accfd65..7d2f1ad308c 100755
--- a/lto-plugin/configure
+++ b/lto-plugin/configure
@@ -5643,6 +5643,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
+# The plug-in depends on pthreads
+LDFLAGS="-pthread"
+
# Check whether -static-libgcc is supported.
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -static-libgcc"
@@ -6010,6 +6013,16 @@ else
fi
+# Check for thread headers.
+ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
+if test "x$ac_cv_header_pthread_h" = xyes; then :
+
+$as_echo "#define HAVE_PTHREAD_H 1" >>confdefs.h
+
+fi
+
+
+
case `pwd` in
*\ * | *\ *)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
@@ -12081,7 +12094,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12084 "configure"
+#line 12097 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12187,7 +12200,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12190 "configure"
+#line 12203 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
diff --git a/lto-plugin/configure.ac b/lto-plugin/configure.ac
index bc5b618a495..75cf46ac5c7 100644
--- a/lto-plugin/configure.ac
+++ b/lto-plugin/configure.ac
@@ -13,6 +13,9 @@ AC_PROG_CC
AC_SYS_LARGEFILE
ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags])
+# The plug-in depends on pthreads
+LDFLAGS="-pthread"
+
# Check whether -static-libgcc is supported.
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -static-libgcc"
@@ -87,6 +90,10 @@ AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER, [test "x$lto_plugin_use_symver" != xno])
AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER_GNU, [test "x$lto_plugin_use_symver" = xgnu])
AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER_SUN, [test "x$lto_plugin_use_symver" = xsun])
+# Check for thread headers.
+AC_CHECK_HEADER(pthread.h,
+ [AC_DEFINE(HAVE_PTHREAD_H, 1, [Define to 1 if pthread.h is present.])])
+
AM_PROG_LIBTOOL
ACX_LT_HOST_FLAGS
AC_SUBST(target_noncanonical)
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 00b760636dc..635e126946b 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -40,7 +40,11 @@ along with this program; see the file COPYING3. If not see
#ifdef HAVE_CONFIG_H
#include "config.h"
+#if !HAVE_PTHREAD_H
+#error POSIX threads are mandatory dependency
#endif
+#endif
+
#if HAVE_STDINT_H
#include <stdint.h>
#endif
@@ -55,6 +59,7 @@ along with this program; see the file COPYING3. If not see
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
+#include <pthread.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
@@ -157,6 +162,9 @@ enum symbol_style
ss_uscore, /* Underscore prefix all symbols. */
};
+/* Plug-in mutex. */
+static pthread_mutex_t plugin_lock;
+
static char *arguments_file_name;
static ld_plugin_register_claim_file register_claim_file;
static ld_plugin_register_all_symbols_read register_all_symbols_read;
@@ -1262,15 +1270,18 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
lto_file.symtab.syms);
check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
+ pthread_mutex_lock (&plugin_lock);
num_claimed_files++;
claimed_files =
xrealloc (claimed_files,
num_claimed_files * sizeof (struct plugin_file_info));
claimed_files[num_claimed_files - 1] = lto_file;
+ pthread_mutex_unlock (&plugin_lock);
*claimed = 1;
}
+ pthread_mutex_lock (&plugin_lock);
if (offload_files == NULL)
{
/* Add dummy item to the start of the list. */
@@ -1333,11 +1344,14 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
offload_files_last_lto = ofld;
num_offload_files++;
}
+ pthread_mutex_unlock (&plugin_lock);
goto cleanup;
err:
+ pthread_mutex_lock (&plugin_lock);
non_claimed_files++;
+ pthread_mutex_unlock (&plugin_lock);
free (lto_file.name);
cleanup:
@@ -1415,6 +1429,12 @@ onload (struct ld_plugin_tv *tv)
struct ld_plugin_tv *p;
enum ld_plugin_status status;
+ if (pthread_mutex_init (&plugin_lock, NULL) != 0)
+ {
+ fprintf (stderr, "mutex init failed\n");
+ abort ();
+ }
+
p = tv;
while (p->tv_tag)
{
^ permalink raw reply [flat|nested] 4+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: make claim_file_handler thread-safe
@ 2022-06-21 8:42 Martin Liska
0 siblings, 0 replies; 4+ messages in thread
From: Martin Liska @ 2022-06-21 8:42 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:f1e2f84dbfdac5c7aee7036e78841cb33c3bad50
commit f1e2f84dbfdac5c7aee7036e78841cb33c3bad50
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:18:41 2022 +0200
lto-plugin: make claim_file_handler thread-safe
lto-plugin/ChangeLog:
* lto-plugin.c (plugin_lock): New lock.
(claim_file_handler): Use mutex for critical section.
(onload): Initialize mutex.
Diff:
---
lto-plugin/config.h.in | 3 +++
lto-plugin/configure | 17 +++++++++++++++--
lto-plugin/configure.ac | 7 +++++++
lto-plugin/lto-plugin.c | 20 ++++++++++++++++++++
4 files changed, 45 insertions(+), 2 deletions(-)
diff --git a/lto-plugin/config.h.in b/lto-plugin/config.h.in
index ddbde7619d5..029e782f1ee 100644
--- a/lto-plugin/config.h.in
+++ b/lto-plugin/config.h.in
@@ -9,6 +9,9 @@
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
+/* Define to 1 if pthread.h is present. */
+#undef HAVE_PTHREAD_H
+
/* Define to 1 if you have the <stdint.h> header file. */
#undef HAVE_STDINT_H
diff --git a/lto-plugin/configure b/lto-plugin/configure
index b820accfd65..6d452063cfb 100755
--- a/lto-plugin/configure
+++ b/lto-plugin/configure
@@ -5643,6 +5643,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
+# The plug-in depends on pthreads
+LDFLAGS="-lpthread"
+
# Check whether -static-libgcc is supported.
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -static-libgcc"
@@ -6010,6 +6013,16 @@ else
fi
+# Check for thread headers.
+ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
+if test "x$ac_cv_header_pthread_h" = xyes; then :
+
+$as_echo "#define HAVE_PTHREAD_H 1" >>confdefs.h
+
+fi
+
+
+
case `pwd` in
*\ * | *\ *)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
@@ -12081,7 +12094,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12084 "configure"
+#line 12097 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -12187,7 +12200,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 12190 "configure"
+#line 12203 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
diff --git a/lto-plugin/configure.ac b/lto-plugin/configure.ac
index bc5b618a495..aafabd4fa7b 100644
--- a/lto-plugin/configure.ac
+++ b/lto-plugin/configure.ac
@@ -13,6 +13,9 @@ AC_PROG_CC
AC_SYS_LARGEFILE
ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_lto_plugin_warn_cflags])
+# The plug-in depends on pthreads
+LDFLAGS="-lpthread"
+
# Check whether -static-libgcc is supported.
saved_LDFLAGS="$LDFLAGS"
LDFLAGS="$LDFLAGS -static-libgcc"
@@ -87,6 +90,10 @@ AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER, [test "x$lto_plugin_use_symver" != xno])
AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER_GNU, [test "x$lto_plugin_use_symver" = xgnu])
AM_CONDITIONAL(LTO_PLUGIN_USE_SYMVER_SUN, [test "x$lto_plugin_use_symver" = xsun])
+# Check for thread headers.
+AC_CHECK_HEADER(pthread.h,
+ [AC_DEFINE(HAVE_PTHREAD_H, 1, [Define to 1 if pthread.h is present.])])
+
AM_PROG_LIBTOOL
ACX_LT_HOST_FLAGS
AC_SUBST(target_noncanonical)
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 00b760636dc..635e126946b 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -40,7 +40,11 @@ along with this program; see the file COPYING3. If not see
#ifdef HAVE_CONFIG_H
#include "config.h"
+#if !HAVE_PTHREAD_H
+#error POSIX threads are mandatory dependency
#endif
+#endif
+
#if HAVE_STDINT_H
#include <stdint.h>
#endif
@@ -55,6 +59,7 @@ along with this program; see the file COPYING3. If not see
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
+#include <pthread.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
@@ -157,6 +162,9 @@ enum symbol_style
ss_uscore, /* Underscore prefix all symbols. */
};
+/* Plug-in mutex. */
+static pthread_mutex_t plugin_lock;
+
static char *arguments_file_name;
static ld_plugin_register_claim_file register_claim_file;
static ld_plugin_register_all_symbols_read register_all_symbols_read;
@@ -1262,15 +1270,18 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
lto_file.symtab.syms);
check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
+ pthread_mutex_lock (&plugin_lock);
num_claimed_files++;
claimed_files =
xrealloc (claimed_files,
num_claimed_files * sizeof (struct plugin_file_info));
claimed_files[num_claimed_files - 1] = lto_file;
+ pthread_mutex_unlock (&plugin_lock);
*claimed = 1;
}
+ pthread_mutex_lock (&plugin_lock);
if (offload_files == NULL)
{
/* Add dummy item to the start of the list. */
@@ -1333,11 +1344,14 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
offload_files_last_lto = ofld;
num_offload_files++;
}
+ pthread_mutex_unlock (&plugin_lock);
goto cleanup;
err:
+ pthread_mutex_lock (&plugin_lock);
non_claimed_files++;
+ pthread_mutex_unlock (&plugin_lock);
free (lto_file.name);
cleanup:
@@ -1415,6 +1429,12 @@ onload (struct ld_plugin_tv *tv)
struct ld_plugin_tv *p;
enum ld_plugin_status status;
+ if (pthread_mutex_init (&plugin_lock, NULL) != 0)
+ {
+ fprintf (stderr, "mutex init failed\n");
+ abort ();
+ }
+
p = tv;
while (p->tv_tag)
{
^ permalink raw reply [flat|nested] 4+ messages in thread
* [gcc(refs/users/marxin/heads/lto-plugin-get_symbols_v3-v4)] lto-plugin: make claim_file_handler thread-safe
@ 2022-05-19 13:53 Martin Liska
0 siblings, 0 replies; 4+ messages in thread
From: Martin Liska @ 2022-05-19 13:53 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:9770238db77eab4243696e3f0b71df11777a715a
commit 9770238db77eab4243696e3f0b71df11777a715a
Author: Martin Liska <mliska@suse.cz>
Date: Mon May 16 14:18:41 2022 +0200
lto-plugin: make claim_file_handler thread-safe
lto-plugin/ChangeLog:
* lto-plugin.c (plugin_lock): New lock.
(claim_file_handler): Use mutex for critical section.
(onload): Initialize mutex.
Diff:
---
lto-plugin/lto-plugin.c | 16 +++++++++++++++-
1 file changed, 15 insertions(+), 1 deletion(-)
diff --git a/lto-plugin/lto-plugin.c b/lto-plugin/lto-plugin.c
index 00b760636dc..13118c4983c 100644
--- a/lto-plugin/lto-plugin.c
+++ b/lto-plugin/lto-plugin.c
@@ -55,6 +55,7 @@ along with this program; see the file COPYING3. If not see
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
+#include <pthread.h>
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
@@ -157,6 +158,9 @@ enum symbol_style
ss_uscore, /* Underscore prefix all symbols. */
};
+/* Plug-in mutex. */
+static pthread_mutex_t plugin_lock;
+
static char *arguments_file_name;
static ld_plugin_register_claim_file register_claim_file;
static ld_plugin_register_all_symbols_read register_all_symbols_read;
@@ -1262,15 +1266,18 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
lto_file.symtab.syms);
check (status == LDPS_OK, LDPL_FATAL, "could not add symbols");
+ pthread_mutex_lock (&plugin_lock);
num_claimed_files++;
claimed_files =
xrealloc (claimed_files,
num_claimed_files * sizeof (struct plugin_file_info));
claimed_files[num_claimed_files - 1] = lto_file;
+ pthread_mutex_unlock (&plugin_lock);
*claimed = 1;
}
+ pthread_mutex_lock (&plugin_lock);
if (offload_files == NULL)
{
/* Add dummy item to the start of the list. */
@@ -1333,11 +1340,12 @@ claim_file_handler (const struct ld_plugin_input_file *file, int *claimed)
offload_files_last_lto = ofld;
num_offload_files++;
}
+ pthread_mutex_unlock (&plugin_lock);
goto cleanup;
err:
- non_claimed_files++;
+ __atomic_fetch_add (&non_claimed_files, 1, __ATOMIC_RELAXED);
free (lto_file.name);
cleanup:
@@ -1415,6 +1423,12 @@ onload (struct ld_plugin_tv *tv)
struct ld_plugin_tv *p;
enum ld_plugin_status status;
+ if (pthread_mutex_init (&plugin_lock, NULL) != 0)
+ {
+ fprintf (stderr, "mutex init failed\n");
+ abort ();
+ }
+
p = tv;
while (p->tv_tag)
{
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-06-27 8:07 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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