!23 fix signal stack size is wrong with latest glibc 2.34
From: @tong_1001 Reviewed-by: @xiezhipeng1 Signed-off-by: @xiezhipeng1
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7ffc156580
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backport-8.2.2550-signal-stack-size-is-wrong-with-lates.patch
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backport-8.2.2550-signal-stack-size-is-wrong-with-lates.patch
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From 0e62a6742bca186624e97e2121c98ada30e009a0 Mon Sep 17 00:00:00 2001
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From: Bram Moolenaar <Bram@vim.org>
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Date: Thu, 25 Feb 2021 17:17:56 +0100
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Subject: [PATCH 4236/5000] patch 8.2.2550: signal stack size is wrong with
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latest glibc 2.34
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Problem: Signal stack size is wrong with latest glibc 2.34.
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Solution: Use sysconf(_SC_SIGSTKSZ) if available. (Zdenek Dohnal, closes
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#7895)
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---
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src/auto/configure | 24 ++++++++++++++++++++++++
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src/config.h.in | 3 +++
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src/configure.ac | 9 +++++++++
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src/os_unix.c | 14 +++++++++++++-
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4 files changed, 49 insertions(+), 1 deletion(-)
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diff --git a/src/auto/configure b/src/auto/configure
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index 250e5ae..8183499 100755
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--- a/src/auto/configure
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+++ b/src/auto/configure
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@@ -13943,6 +13943,30 @@ $as_echo "not usable" >&6; }
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for _SC_SIGSTKSZ via sysconf()" >&5
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+$as_echo_n "checking for _SC_SIGSTKSZ via sysconf()... " >&6; }
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+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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+/* end confdefs.h. */
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+#include <unistd.h>
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+int
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+main ()
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+{
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+ (void)sysconf(_SC_SIGSTKSZ);
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+
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+ ;
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+ return 0;
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+}
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+_ACEOF
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+if ac_fn_c_try_compile "$LINENO"; then :
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
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+$as_echo "yes" >&6; }; $as_echo "#define HAVE_SYSCONF_SIGSTKSZ 1" >>confdefs.h
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+
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+else
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: not usable" >&5
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+$as_echo "not usable" >&6; }
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+fi
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+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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+
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# The cast to long int works around a bug in the HP C Compiler
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# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
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# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
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diff --git a/src/config.h.in b/src/config.h.in
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index b114480..5d01e2c 100644
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--- a/src/config.h.in
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+++ b/src/config.h.in
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@@ -496,3 +496,6 @@
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/* Define to inline symbol or empty */
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#undef inline
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+
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+/* Define if _SC_SIGSTKSZ is available via sysconf() */
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+#undef HAVE_SYSCONF_SIGSTKSZ
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diff --git a/src/configure.ac b/src/configure.ac
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index 58bfa19..798e9b8 100644
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--- a/src/configure.ac
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+++ b/src/configure.ac
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@@ -4105,6 +4105,15 @@ AC_TRY_COMPILE(
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AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCONF),
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AC_MSG_RESULT(not usable))
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+dnl check if we have _SC_SIGSTKSZ via sysconf()
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+AC_MSG_CHECKING(for _SC_SIGSTKSZ via sysconf())
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+AC_TRY_COMPILE(
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+[#include <unistd.h>],
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+[ (void)sysconf(_SC_SIGSTKSZ);
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+ ],
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+ AC_MSG_RESULT(yes); AC_DEFINE(HAVE_SYSCONF_SIGSTKSZ),
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+ AC_MSG_RESULT(not usable))
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+
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AC_CHECK_SIZEOF([int])
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AC_CHECK_SIZEOF([long])
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AC_CHECK_SIZEOF([time_t])
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diff --git a/src/os_unix.c b/src/os_unix.c
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index 1edc7e6..1c80799 100644
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--- a/src/os_unix.c
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+++ b/src/os_unix.c
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@@ -783,7 +783,7 @@ mch_stackcheck(char *p)
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* completely full.
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*/
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-#ifndef SIGSTKSZ
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+#if !defined SIGSTKSZ && !defined(HAVE_SYSCONF_SIGSTKSZ)
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# define SIGSTKSZ 8000 // just a guess of how much stack is needed...
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#endif
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@@ -806,13 +806,21 @@ init_signal_stack(void)
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# else
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sigstk.ss_sp = signal_stack;
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# endif
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+# ifdef HAVE_SYSCONF_SIGSTKSZ
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+ sigstk.ss_size = sysconf(_SC_SIGSTKSZ);
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+# else
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sigstk.ss_size = SIGSTKSZ;
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+# endif
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sigstk.ss_flags = 0;
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(void)sigaltstack(&sigstk, NULL);
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# else
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sigstk.ss_sp = signal_stack;
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if (stack_grows_downwards)
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+# ifdef HAVE_SYSCONF_SIGSTKSZ
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+ sigstk.ss_sp += sysconf(_SC_SIGSTKSZ) - 1;
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+# else
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sigstk.ss_sp += SIGSTKSZ - 1;
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+# endif
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sigstk.ss_onstack = 0;
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(void)sigstack(&sigstk, NULL);
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# endif
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@@ -3261,7 +3269,11 @@ mch_early_init(void)
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* Ignore any errors.
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*/
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#if defined(HAVE_SIGALTSTACK) || defined(HAVE_SIGSTACK)
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+# ifdef HAVE_SYSCONF_SIGSTKSZ
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+ signal_stack = alloc(sysconf(_SC_SIGSTKSZ));
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+# else
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signal_stack = alloc(SIGSTKSZ);
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+# endif
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init_signal_stack();
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#endif
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}
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--
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1.8.3.1
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9
vim.spec
9
vim.spec
@ -12,7 +12,7 @@
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Name: vim
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Epoch: 2
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Version: 8.2
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Release: 8
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Release: 9
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Summary: Vim is a highly configurable text editor for efficiently creating and changing any kind of text.
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License: Vim and MIT
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URL: http://www.vim.org
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@ -35,6 +35,7 @@ Patch0012: vim-python3-tests.patch
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Patch0013: Fix-vim-lua5.4.0-defines+luaL_typeerror-twice.patch
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Patch0014: backport-Fix-build-failuers-with-perl-5.32.patch
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Patch6000: backport-Configure-does-not-recognize-gcc-10.0-and-later.patch
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Patch6001: backport-8.2.2550-signal-stack-size-is-wrong-with-lates.patch
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Patch9000: bugfix-rm-modify-info-version.patch
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@ -423,6 +424,12 @@ popd
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%{_mandir}/man1/evim.*
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%changelog
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* Tue Aug 10 2021 shixuantong<shixuantong@huawei> - 2:8.2-9
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- Type:bugfix
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- ID:NA
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- SUG:NA
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- DESC:fix signal stack size is wrong with latest glibc 2.34
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* Sat Aug 07 2021 shixuantong<shixuantong@huawei> - 2:8.2-8
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- Type:bugfix
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- ID:NA
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