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dotnet6.0/runtime-60675-strerror.patch

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This is a subset of the full upsteram patch
More at https://github.com/dotnet/runtime/pull/77505
From 577a70afa472a2b7aa8e05947e185d920f42b23d Mon Sep 17 00:00:00 2001
From: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Date: Tue, 2 Nov 2021 17:47:37 +0200
Subject: [PATCH] Fix gcc warnings during mono linux-x64 build (#60675)
* Fix gcc warnings during mono linux-x64 build
main with Debug configuration: 822 warnings - http://sprunge.us/2GzrDE
PR with Debug configuration: 3 warnings related to deprecated sys/sysctl.h includes - http://sprunge.us/JuyA3K
after fixing Debug warnings, there were 13 additional warnings in Release configuration:
http://sprunge.us/PJCivP
PR with Release configuration: (same) 3 warnings - http://sprunge.us/NwKHNE
* Address CR feedback
---
src/mono/cmake/config.h.in | 7 +--
src/mono/cmake/configure.cmake | 40 +++++++++++---
src/mono/cmake/defines-todo.cmake | 1 -
src/mono/mono/eglib/gstr.c | 14 ++---
src/mono/mono/utils/mono-proclib.c | 28 +++++-----
5 files changed, 173 insertions(+), 192 deletions(-)
diff --git a/src/mono/cmake/config.h.in b/src/mono/cmake/config.h.in
index 48a82ec6db8c4..648ad60dd0494 100644
--- a/src/mono/cmake/config.h.in
+++ b/src/mono/cmake/config.h.in
@@ -510,14 +510,11 @@
/* Define to 1 if you have the `strerror_r' function. */
#cmakedefine HAVE_STRERROR_R 1
-/* Define to 1 if strerror_r returns char *. */
-#cmakedefine STRERROR_R_CHAR_P 1
-
/* Have GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY */
#cmakedefine GLIBC_BEFORE_2_3_4_SCHED_SETAFFINITY 1
/* GLIBC has CPU_COUNT macro in sched.h */
-#cmakedefine GLIBC_HAS_CPU_COUNT 1
+#cmakedefine HAVE_GNU_CPU_COUNT
/* Have large file support */
#cmakedefine HAVE_LARGE_FILE_SUPPORT 1
@@ -712,6 +709,8 @@
/* The size of `size_t', as computed by sizeof. */
#define SIZEOF_SIZE_T @SIZEOF_SIZE_T@
+#cmakedefine01 HAVE_GNU_STRERROR_R
+
/* Define to 1 if the system has the type `struct sockaddr'. */
#cmakedefine HAVE_STRUCT_SOCKADDR 1
diff --git a/src/mono/cmake/configure.cmake b/src/mono/cmake/configure.cmake
index 7bee1c6b98553..e8e9fb9e67d79 100644
--- a/src/mono/cmake/configure.cmake
+++ b/src/mono/cmake/configure.cmake
@@ -135,6 +135,37 @@
check_type_size("long long" SIZEOF_LONG_LONG)
check_type_size("size_t" SIZEOF_SIZE_T)
+if (HOST_LINUX OR HOST_ANDROID)
+ set(CMAKE_REQUIRED_DEFINITIONS -D_GNU_SOURCE)
+endif()
+
+check_c_source_compiles(
+ "
+ #include <string.h>
+ int main(void)
+ {
+ char buffer[1];
+ char c = *strerror_r(0, buffer, 0);
+ return 0;
+ }
+ "
+ HAVE_GNU_STRERROR_R)
+
+check_c_source_compiles(
+ "
+ #include <sched.h>
+ int main(void)
+ {
+ CPU_COUNT((void *) 0);
+ return 0;
+ }
+ "
+ HAVE_GNU_CPU_COUNT)
+
+if (HOST_LINUX OR HOST_ANDROID)
+ set(CMAKE_REQUIRED_DEFINITIONS)
+endif()
+
# ICONV
set(ICONV_LIB)
find_library(LIBICONV_FOUND iconv)
@@ -142,14 +173,6 @@
set(ICONV_LIB "iconv")
endif()
-file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/test.c
- "#include <sched.h>\n"
- "void main () { CPU_COUNT((void *) 0); }\n"
-)
-try_compile(GLIBC_HAS_CPU_COUNT ${CMAKE_BINARY_DIR}/CMakeTmp SOURCES "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/test.c"
- COMPILE_DEFINITIONS "-D_GNU_SOURCE")
-
-
if(HOST_WIN32)
# checking for this doesn't work for some reason, hardcode result
set(HAVE_WINTERNL_H 1)
diff --git a/src/mono/cmake/defines-todo.cmake b/src/mono/cmake/defines-todo.cmake
index d45098d4eea4f..8d2828d53e9ba 100644
--- a/src/mono/cmake/defines-todo.cmake
+++ b/src/mono/cmake/defines-todo.cmake
@@ -4,7 +4,6 @@
#option (MAJOR_IN_MKDEV "Define to 1 if `major', `minor', and `makedev' are declared in <mkdev.h>.")
#option (MAJOR_IN_SYSMACROS "Define to 1 if `major', `minor', and `makedev' are declared in <sysmacros.h>.")
-#option (STRERROR_R_CHAR_P "Define to 1 if strerror_r returns char *.")
#option (HAVE_LIBICONV "Define to 1 if you have the `iconv' library (-liconv).")
#option (ANDROID_UNIFIED_HEADERS "Whether Android NDK unified headers are used")
#option (MONO_DL_NEED_USCORE "Does dlsym require leading underscore.")
diff --git a/src/mono/mono/eglib/gstr.c b/src/mono/mono/eglib/gstr.c
index c549b241894f1..cbf63d8f02b97 100644
--- a/src/mono/mono/eglib/gstr.c
+++ b/src/mono/mono/eglib/gstr.c
@@ -249,7 +249,11 @@ g_strerror (gint errnum)
size_t buff_len = sizeof (tmp_buff);
buff [0] = 0;
-#ifndef STRERROR_R_CHAR_P
+#if HAVE_GNU_STRERROR_R
+ buff = strerror_r (errnum, buff, buff_len);
+ if (!error_messages [errnum])
+ error_messages [errnum] = g_strdup (buff);
+#else /* HAVE_GNU_STRERROR_R */
int r;
while ((r = strerror_r (errnum, buff, buff_len - 1))) {
if (r != ERANGE) {
@@ -261,17 +265,13 @@ g_strerror (gint errnum)
else
buff = g_realloc (buff, buff_len * 2);
buff_len *= 2;
- //Spec is not clean on whether size argument includes space for null terminator or not
+ //Spec is not clean on whether size argument includes space for null terminator or not
}
if (!error_messages [errnum])
error_messages [errnum] = g_strdup (buff);
if (buff != tmp_buff)
g_free (buff);
-#else /* STRERROR_R_CHAR_P */
- buff = strerror_r (errnum, buff, buff_len);
- if (!error_messages [errnum])
- error_messages [errnum] = g_strdup (buff);
-#endif /* STRERROR_R_CHAR_P */
+#endif /* HAVE_GNU_STRERROR_R */
#else /* HAVE_STRERROR_R */
if (!error_messages [errnum])
diff --git a/src/mono/mono/utils/mono-proclib.c b/src/mono/mono/utils/mono-proclib.c
index 1fe731d9fe0f5..9a33fc2924e6b 100644
--- a/src/mono/mono/utils/mono-proclib.c
+++ b/src/mono/mono/utils/mono-proclib.c
@@ -81,7 +81,7 @@
#endif
#ifdef HAVE_SCHED_GETAFFINITY
-# ifndef GLIBC_HAS_CPU_COUNT
+# ifndef HAVE_GNU_CPU_COUNT
static int
CPU_COUNT(cpu_set_t *set)
{
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