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From: Adhemerval Zanella <azanella@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc/azanella/clang] stdio: Remove the usage of $(fno-unit-at-a-time) for errlist.c
Date: Fri, 29 Apr 2022 13:58:41 +0000 (GMT) [thread overview]
Message-ID: <20220429135841.37DE73856DCC@sourceware.org> (raw)
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=90295adb7b1d6d066402e5358c7f8bd64cc9f314
commit 90295adb7b1d6d066402e5358c7f8bd64cc9f314
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date: Wed Apr 6 12:09:42 2022 -0300
stdio: Remove the usage of $(fno-unit-at-a-time) for errlist.c
Diff:
---
include/stdio.h | 1 +
stdio-common/Makefile | 15 ++++++++++-
stdio-common/errlist-compat-data.h | 1 +
stdio-common/errlist-compat.c | 1 -
stdio-common/errlist-data-gen.c | 19 +++++++++++++
stdio-common/errlist-data.S | 7 +++++
stdio-common/errlist.c | 11 +-------
.../{errlist-compat.c => errlist-compat-data.h} | 0
.../{errlist-compat.c => errlist-compat-data.h} | 0
sysdeps/unix/sysv/linux/errlist-compat.h | 31 +++++++++++++---------
.../{errlist-compat.c => errlist-compat-data.h} | 0
.../{errlist-compat.c => errlist-compat-data.h} | 0
.../{errlist-compat.c => errlist-compat-data.h} | 0
13 files changed, 62 insertions(+), 24 deletions(-)
diff --git a/include/stdio.h b/include/stdio.h
index 23b7fd288c..a6f7fd43cb 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -180,6 +180,7 @@ int __vfxprintf (FILE *__fp, const char *__fmt, __gnuc_va_list,
attribute_hidden;
extern const char *const _sys_errlist_internal[] attribute_hidden;
+extern const size_t _sys_errlist_internal_len attribute_hidden;
extern const char *__get_errlist (int) attribute_hidden;
extern const char *__get_errname (int) attribute_hidden;
diff --git a/stdio-common/Makefile b/stdio-common/Makefile
index a1603e82fe..4a97380911 100644
--- a/stdio-common/Makefile
+++ b/stdio-common/Makefile
@@ -88,6 +88,7 @@ routines := \
aux := \
errlist \
+ errlist-data \
errname \
fxprintf \
printf-parsemb \
@@ -211,6 +212,10 @@ tests := \
xbug \
# tests
+generated += \
+ errlist-data-aux.os \
+ errlist-data-aux.o \
+ # generated
test-srcs = tst-unbputc tst-printf tst-printfsz-islongdouble
@@ -246,6 +251,15 @@ tests-special += $(objpfx)tst-errno-manual.out
include ../Rules
+$(objpfx)errlist-data-aux.os: errlist-data-gen.c
+ $(compile-command.c) $(no-stack-protector) -S
+
+$(objpfx)errlist-data-aux.o: errlist-data-gen.c
+ $(compile-command.c) $(no-stack-protector) -S
+
+$(objpfx)errlist-data.os: $(objpfx)errlist-data-aux.os
+$(objpfx)errlist-data.o: $(objpfx)errlist-data-aux.o
+
ifeq ($(run-built-tests),yes)
LOCALES := \
de_DE.ISO-8859-1 \
@@ -334,7 +348,6 @@ CFLAGS-isoc99_vfscanf.c += -fexceptions
CFLAGS-isoc99_vscanf.c += -fexceptions
CFLAGS-isoc99_fscanf.c += -fexceptions
CFLAGS-isoc99_scanf.c += -fexceptions
-CFLAGS-errlist.c += $(fno-unit-at-a-time)
CFLAGS-siglist.c += $(fno-unit-at-a-time)
# scanf14a.c and scanf16a.c test a deprecated extension which is no
diff --git a/stdio-common/errlist-compat-data.h b/stdio-common/errlist-compat-data.h
new file mode 100644
index 0000000000..7c89c9a5a4
--- /dev/null
+++ b/stdio-common/errlist-compat-data.h
@@ -0,0 +1 @@
+/* Empty */
diff --git a/stdio-common/errlist-compat.c b/stdio-common/errlist-compat.c
deleted file mode 100644
index 6e25b021ab..0000000000
--- a/stdio-common/errlist-compat.c
+++ /dev/null
@@ -1 +0,0 @@
-/* Empty. */
diff --git a/stdio-common/errlist-data-gen.c b/stdio-common/errlist-data-gen.c
new file mode 100644
index 0000000000..0d24a220a5
--- /dev/null
+++ b/stdio-common/errlist-data-gen.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <errno.h>
+#include <libintl.h>
+#include <array_length.h>
+
+#ifndef ERR_MAP
+# define ERR_MAP(n) n
+#endif
+
+const char *const _sys_errlist_internal[] =
+ {
+#define _S(n, str) [ERR_MAP(n)] = str,
+#include <errlist.h>
+#undef _S
+ };
+const size_t _sys_errlist_internal_len = array_length (_sys_errlist_internal);
+
+/* Include to get the definitions for sys_nerr/_sys_nerr. */
+#include <errlist-compat-data.h>
diff --git a/stdio-common/errlist-data.S b/stdio-common/errlist-data.S
new file mode 100644
index 0000000000..a9856c5080
--- /dev/null
+++ b/stdio-common/errlist-data.S
@@ -0,0 +1,7 @@
+#ifdef SHARED
+# include "errlist-data-aux.os"
+#else
+# include "errlist-data-aux.o"
+#endif
+
+#include <errlist-compat-data.h>
diff --git a/stdio-common/errlist.c b/stdio-common/errlist.c
index 1c09a31a7a..5a472c34c2 100644
--- a/stdio-common/errlist.c
+++ b/stdio-common/errlist.c
@@ -25,20 +25,11 @@
# define ERR_MAP(n) n
#endif
-const char *const _sys_errlist_internal[] =
- {
-#define _S(n, str) [ERR_MAP(n)] = str,
-#include <errlist.h>
-#undef _S
- };
-
const char *
__get_errlist (int errnum)
{
int mapped = ERR_MAP (errnum);
- if (mapped >= 0 && mapped < array_length (_sys_errlist_internal))
+ if (mapped >= 0 && mapped < _sys_errlist_internal_len)
return _sys_errlist_internal[mapped];
return NULL;
}
-
-#include <errlist-compat.c>
diff --git a/sysdeps/unix/sysv/linux/alpha/errlist-compat.c b/sysdeps/unix/sysv/linux/alpha/errlist-compat-data.h
similarity index 100%
rename from sysdeps/unix/sysv/linux/alpha/errlist-compat.c
rename to sysdeps/unix/sysv/linux/alpha/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/errlist-compat.c b/sysdeps/unix/sysv/linux/errlist-compat-data.h
similarity index 100%
rename from sysdeps/unix/sysv/linux/errlist-compat.c
rename to sysdeps/unix/sysv/linux/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/errlist-compat.h b/sysdeps/unix/sysv/linux/errlist-compat.h
index a09b38f243..13a0fa292a 100644
--- a/sysdeps/unix/sysv/linux/errlist-compat.h
+++ b/sysdeps/unix/sysv/linux/errlist-compat.h
@@ -20,6 +20,7 @@
#define _ERRLIST_COMPAT_H
#include <shlib-compat.h>
+#include <limits.h>
/* Define new compat symbols for symbols _sys_errlist, sys_errlist,
_sys_nerr, and sys_nerr for version VERSION with NUMBERERR times number of
@@ -27,17 +28,23 @@
Both _sys_errlist and sys_errlist alias to _sys_errlist_internal symbol
(defined on errlist.c) while _sys_nerr and sys_nerr created new variable
with the expected size. */
-#define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) \
- const int __##VERSION##_sys_nerr = NUMBERERR; \
- strong_alias (__##VERSION##_sys_nerr, __##VERSION##__sys_nerr); \
- declare_symbol_alias (__ ## VERSION ## _sys_errlist, _sys_errlist_internal,\
- object, NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)); \
- declare_symbol_alias (__ ## VERSION ## __sys_errlist, \
- _sys_errlist_internal, object, \
- NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)); \
- compat_symbol (libc, __## VERSION ## _sys_nerr, sys_nerr, VERSION); \
- compat_symbol (libc, __## VERSION ## __sys_nerr, _sys_nerr, VERSION); \
- compat_symbol (libc, __## VERSION ## _sys_errlist, sys_errlist, VERSION); \
- compat_symbol (libc, __## VERSION ## __sys_errlist, _sys_errlist, VERSION);\
+#ifdef __ASSEMBLER__
+# define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) \
+ declare_object_symbol_alias (__ ## VERSION ## _sys_errlist, \
+ _sys_errlist_internal, \
+ NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)) \
+ declare_object_symbol_alias (__ ## VERSION ## __sys_errlist, \
+ _sys_errlist_internal, \
+ NUMBERERR * (ULONG_WIDTH / UCHAR_WIDTH)) \
+ compat_symbol (libc, __## VERSION ## _sys_errlist, sys_errlist, VERSION) \
+ ASM_LINE_SEP \
+ compat_symbol (libc, __## VERSION ## __sys_errlist, _sys_errlist, VERSION)
+#else
+# define DEFINE_COMPAT_ERRLIST(NUMBERERR, VERSION) \
+ const int __##VERSION##_sys_nerr = NUMBERERR; \
+ strong_alias (__##VERSION##_sys_nerr, __##VERSION##__sys_nerr); \
+ compat_symbol (libc, __## VERSION ## _sys_nerr, sys_nerr, VERSION); \
+ compat_symbol (libc, __## VERSION ## __sys_nerr, _sys_nerr, VERSION);
+#endif
#endif
diff --git a/sysdeps/unix/sysv/linux/hppa/errlist-compat.c b/sysdeps/unix/sysv/linux/hppa/errlist-compat-data.h
similarity index 100%
rename from sysdeps/unix/sysv/linux/hppa/errlist-compat.c
rename to sysdeps/unix/sysv/linux/hppa/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/mips/errlist-compat.c b/sysdeps/unix/sysv/linux/mips/errlist-compat-data.h
similarity index 100%
rename from sysdeps/unix/sysv/linux/mips/errlist-compat.c
rename to sysdeps/unix/sysv/linux/mips/errlist-compat-data.h
diff --git a/sysdeps/unix/sysv/linux/sparc/errlist-compat.c b/sysdeps/unix/sysv/linux/sparc/errlist-compat-data.h
similarity index 100%
rename from sysdeps/unix/sysv/linux/sparc/errlist-compat.c
rename to sysdeps/unix/sysv/linux/sparc/errlist-compat-data.h
next reply other threads:[~2022-04-29 13:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-29 13:58 Adhemerval Zanella [this message]
2022-05-10 18:18 Adhemerval Zanella
2022-05-12 19:28 Adhemerval Zanella
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