From 3d4ab416844793fb1b4fc28ad966cb125d19e441 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Sat, 3 Aug 2019 16:14:26 +0000
Subject: midipix targets: __init_tls(): added __thread_list_lock support.

---
 project/common.mk         |  3 ++-
 project/config/cfgdefs.in |  4 ++++
 project/config/cfgdefs.sh | 31 ++++++++++++++++++++++++++++++-
 3 files changed, 36 insertions(+), 2 deletions(-)

(limited to 'project')

diff --git a/project/common.mk b/project/common.mk
index f7f6929..af5155e 100644
--- a/project/common.mk
+++ b/project/common.mk
@@ -82,7 +82,8 @@ SHARED_OBJS        += $(libc_core_files_S:%.S=%.lo)
 $(STATIC_OBJS):       headers.tag host.tag tree.tag
 $(SHARED_OBJS):       headers.tag host.tag tree.tag
 
-$(SHARED_OBJS):       CFLAGS_SHARED += -DSHARED=
+$(SHARED_OBJS):       CFLAGS_SHARED += $(LIBC_CFLAGS_SHARED) -DSHARED=
+$(STATIC_OBJS):       CFLAGS_STATIC += $(LIBC_CFLAGS_STATIC)
 
 src/%.o:$(PORT_DIR)/src/%.c $(HEADER_DEPS)
 	$(CC) -c -o $@ $< $(CFLAGS_STATIC)
diff --git a/project/config/cfgdefs.in b/project/config/cfgdefs.in
index bbad445..e03094a 100644
--- a/project/config/cfgdefs.in
+++ b/project/config/cfgdefs.in
@@ -4,6 +4,10 @@ LIBC_MAJOR               = @libc_major@
 LIBC_MINOR               = @libc_minor@
 LIBC_MICRO               = @libc_micro@
 
+# libc version-specific defs
+LIBC_CFLAGS_SHARED      += @libc_td_tid_addr@
+LIBC_CFLAGS_STATIC      += @libc_td_tid_addr@
+
 # build mode
 LIBC_EXCL_FILES          = @libc_excl_files@
 
diff --git a/project/config/cfgdefs.sh b/project/config/cfgdefs.sh
index 168e961..994ef54 100644
--- a/project/config/cfgdefs.sh
+++ b/project/config/cfgdefs.sh
@@ -101,6 +101,31 @@ cfgdefs_set_libc_options()
 }
 
 
+cfgdefs_set_libc_cflags()
+{
+	libc_td_tid_addr=
+	mb_init_tls_src_file=$mb_source_dir/src/env/__init_tls.c
+
+	[ -z $libc_td_tid_addr ] \
+		&& grep '__syscall(SYS_set_tid_address, &td->tid)' $mb_init_tls_src_file > /dev/null \
+			&& libc_td_tid_addr='-D__LIBC_TD_TID_ADDR_TID'
+
+	[ -z $libc_td_tid_addr ] \
+		&& grep '__syscall(SYS_set_tid_address, &td->join_futex)' $mb_init_tls_src_file > /dev/null \
+			&& libc_td_tid_addr='-D__LIBC_TD_TID_ADDR_JOIN_FUTEX'
+
+	[ -z $libc_td_tid_addr ] \
+		&& grep '__syscall(SYS_set_tid_address, &td->detach_state)' $mb_init_tls_src_file > /dev/null \
+			&& libc_td_tid_addr='-D__LIBC_TD_TID_ADDR_DETACH_STATE'
+
+	[ -z $libc_td_tid_addr ] \
+		&& grep '__syscall(SYS_set_tid_address, &__thread_list_lock)' $mb_init_tls_src_file > /dev/null \
+			&& libc_td_tid_addr='-D__LIBC_TD_TID_ADDR_THREAD_LIST_LOCK'
+
+	return 0
+}
+
+
 cfgdefs_output_custom_defs()
 {
 	sed \
@@ -113,7 +138,8 @@ cfgdefs_output_custom_defs()
 			-e 's^@libc_excl_files@^'"$libc_excl_files"'^g'   \
 			-e 's/@libc_source_tree@/'"$libc_source_tree"'/g'  \
 			-e 's/@libc_syscall_arch@/'"$libc_syscall_arch"'/g' \
-			-e 's!@alltypes_sed@!'"$alltypes_sed"'!g'            \
+			-e 's/@libc_td_tid_addr@/'"$libc_td_tid_addr"'/g'    \
+			-e 's!@alltypes_sed@!'"$alltypes_sed"'!g'             \
 		"$mb_project_dir/project/config/cfgdefs.in"         \
 	| sed -e 's/[ \t]*$//g'                                     \
 			>> "$mb_pwd/cfgdefs.mk"
@@ -129,6 +155,9 @@ cfgdefs_detect_libc_version
 # libc (variant-specific) options
 cfgdefs_set_libc_options
 
+# libc (variant-specific) cflags
+cfgdefs_set_libc_cflags
+
 # cfgdefs.in --> cfgdefs.mk
 cfgdefs_output_custom_defs
 
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