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[SCM] gawk branch, gawk-5.1-stable, updated. gawk-4.1.0-4336-g399f6e4
From: |
Arnold Robbins |
Subject: |
[SCM] gawk branch, gawk-5.1-stable, updated. gawk-4.1.0-4336-g399f6e4 |
Date: |
Sat, 23 Oct 2021 14:53:22 -0400 (EDT) |
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "gawk".
The branch, gawk-5.1-stable has been updated
via 399f6e45acbda2dc5ca5eb24d1c648800be5006a (commit)
from 019318f35c4d0955150e38c0af7944f2f1364bc5 (commit)
Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.
- Log -----------------------------------------------------------------
http://git.sv.gnu.org/cgit/gawk.git/commit/?id=399f6e45acbda2dc5ca5eb24d1c648800be5006a
commit 399f6e45acbda2dc5ca5eb24d1c648800be5006a
Author: Arnold D. Robbins <arnold@skeeve.com>
Date: Sat Oct 23 21:53:08 2021 +0300
Update support files.
diff --git a/support/ChangeLog b/support/ChangeLog
index cf85816..0d2245f 100644
--- a/support/ChangeLog
+++ b/support/ChangeLog
@@ -1,3 +1,7 @@
+2021-10-23 Arnold D. Robbins <arnold@skeeve.com>
+
+ * cdefs.h, regexec.c: Sync with GNULIB.
+
2021-10-13 Arnold D. Robbins <arnold@skeeve.com>
* xalloc.h: Update copyright year.
diff --git a/support/cdefs.h b/support/cdefs.h
index 4dac9d2..ab57d4a 100644
--- a/support/cdefs.h
+++ b/support/cdefs.h
@@ -1,4 +1,5 @@
/* Copyright (C) 1992-2021 Free Software Foundation, Inc.
+ Copyright The GNU Toolchain Authors.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -150,6 +151,53 @@
# define __glibc_objsize(__o) __bos (__o)
#endif
+/* Compile time conditions to choose between the regular, _chk and _chk_warn
+ variants. These conditions should get evaluated to constant and optimized
+ away. */
+
+#define __glibc_safe_len_cond(__l, __s, __osz) ((__l) <= (__osz) / (__s))
+#define __glibc_unsigned_or_positive(__l) \
+ ((__typeof (__l)) 0 < (__typeof (__l)) -1 \
+ || (__builtin_constant_p (__l) && (__l) > 0))
+
+/* Length is known to be safe at compile time if the __L * __S <= __OBJSZ
+ condition can be folded to a constant and if it is true. The -1 check is
+ redundant because since it implies that __glibc_safe_len_cond is true. */
+#define __glibc_safe_or_unknown_len(__l, __s, __osz) \
+ (__glibc_unsigned_or_positive (__l) \
+ && __builtin_constant_p (__glibc_safe_len_cond ((__SIZE_TYPE__) (__l), \
+ __s, __osz)) \
+ && __glibc_safe_len_cond ((__SIZE_TYPE__) (__l), __s, __osz))
+
+/* Conversely, we know at compile time that the length is safe if the
+ __L * __S <= __OBJSZ condition can be folded to a constant and if it is
+ false. */
+#define __glibc_unsafe_len(__l, __s, __osz) \
+ (__glibc_unsigned_or_positive (__l) \
+ && __builtin_constant_p (__glibc_safe_len_cond ((__SIZE_TYPE__) (__l), \
+ __s, __osz)) \
+ && !__glibc_safe_len_cond ((__SIZE_TYPE__) (__l), __s, __osz))
+
+/* Fortify function f. __f_alias, __f_chk and __f_chk_warn must be
+ declared. */
+
+#define __glibc_fortify(f, __l, __s, __osz, ...) \
+ (__glibc_safe_or_unknown_len (__l, __s, __osz) \
+ ? __ ## f ## _alias (__VA_ARGS__) \
+ : (__glibc_unsafe_len (__l, __s, __osz) \
+ ? __ ## f ## _chk_warn (__VA_ARGS__, __osz) \
+ : __ ## f ## _chk (__VA_ARGS__, __osz))) \
+
+/* Fortify function f, where object size argument passed to f is the number of
+ elements and not total size. */
+
+#define __glibc_fortify_n(f, __l, __s, __osz, ...) \
+ (__glibc_safe_or_unknown_len (__l, __s, __osz) \
+ ? __ ## f ## _alias (__VA_ARGS__) \
+ : (__glibc_unsafe_len (__l, __s, __osz) \
+ ? __ ## f ## _chk_warn (__VA_ARGS__, (__osz) / (__s)) \
+ : __ ## f ## _chk (__VA_ARGS__, (__osz) / (__s)))) \
+
#if __GNUC_PREREQ (4,3)
# define __warnattr(msg) __attribute__((__warning__ (msg)))
# define __errordecl(name, msg) \
@@ -243,6 +291,15 @@
# define __attribute_alloc_size__(params) /* Ignore. */
#endif
+/* Tell the compiler which argument to an allocation function
+ indicates the alignment of the allocation. */
+#if __GNUC_PREREQ (4, 9) || __glibc_has_attribute (__alloc_align__)
+# define __attribute_alloc_align__(param) \
+ __attribute__ ((__alloc_align__ param))
+#else
+# define __attribute_alloc_align__(param) /* Ignore. */
+#endif
+
/* At some point during the gcc 2.96 development the `pure' attribute
for functions was introduced. We don't want to use it unconditionally
(although this would be possible) since it generates warnings. */
@@ -605,12 +662,22 @@ _Static_assert (0, "IEEE 128-bits long double requires
redirection on this platf
size-index is not provided:
access (access-mode, <ref-index> [, <size-index>]) */
# define __attr_access(x) __attribute__ ((__access__ x))
+/* For _FORTIFY_SOURCE == 3 we use __builtin_dynamic_object_size, which may
+ use the access attribute to get object sizes from function definition
+ arguments, so we can't use them on functions we fortify. Drop the object
+ size hints for such functions. */
+# if __USE_FORTIFY_LEVEL == 3
+# define __fortified_attr_access(a, o, s) __attribute__ ((__access__ (a,
o)))
+# else
+# define __fortified_attr_access(a, o, s) __attr_access ((a, o, s))
+# endif
# if __GNUC_PREREQ (11, 0)
# define __attr_access_none(argno) __attribute__ ((__access__ (__none__,
argno)))
# else
# define __attr_access_none(argno)
# endif
#else
+# define __fortified_attr_access(a, o, s)
# define __attr_access(x)
# define __attr_access_none(argno)
#endif
diff --git a/support/regexec.c b/support/regexec.c
index 83e9aaf..6aeba3c 100644
--- a/support/regexec.c
+++ b/support/regexec.c
@@ -758,10 +758,9 @@ re_search_internal (const regex_t *preg, const char
*string, Idx length,
offset = match_first - mctx.input.raw_mbs_idx;
}
- /* If MATCH_FIRST is out of the buffer, leave it as '\0'.
- Note that MATCH_FIRST must not be smaller than 0. */
- ch = (match_first >= length
- ? 0 : re_string_byte_at (&mctx.input, offset));
+ /* Use buffer byte if OFFSET is in buffer, otherwise '\0'. */
+ ch = (offset < mctx.input.valid_len
+ ? re_string_byte_at (&mctx.input, offset) : 0);
if (fastmap[ch])
break;
match_first += incr;
-----------------------------------------------------------------------
Summary of changes:
support/ChangeLog | 4 ++++
support/cdefs.h | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
support/regexec.c | 7 +++---
3 files changed, 74 insertions(+), 4 deletions(-)
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- [SCM] gawk branch, gawk-5.1-stable, updated. gawk-4.1.0-4336-g399f6e4,
Arnold Robbins <=