[xen staging] stubdom: Fix -Wimplicit-int in newlib

[patchbot@xxxxxxx]

commit dc39962c782ce516e988379969288c4e620cf66f
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Sat Aug 9 22:55:26 2025 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Sep 10 17:30:22 2025 +0100

    stubdom: Fix -Wimplicit-int in newlib
    
    This is an error now Debian Trixie's gcc-14
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
---
 stubdom/Makefile               |  1 +
 stubdom/newlib-fix-etext.patch | 23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/stubdom/Makefile b/stubdom/Makefile
index 666c3221dc..9aa0d3dee4 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -94,6 +94,7 @@ newlib-$(NEWLIB_VERSION): newlib-$(NEWLIB_VERSION).tar.gz
        patch -d $@ -p1 < newlib-cygmon-gmon.patch
        patch -d $@ -p1 < newlib-makedoc.patch
        patch -d $@ -p1 < newlib-fix-copy_past_newline.patch
+       patch -d $@ -p1 < newlib-fix-etext.patch
        find $@ -type f | xargs perl -i.bak \
                -pe 's/\b_(tzname|daylight|timezone)\b/$$1/g'
        touch $@
diff --git a/stubdom/newlib-fix-etext.patch b/stubdom/newlib-fix-etext.patch
new file mode 100644
index 0000000000..e7bd4bb0ce
--- /dev/null
+++ b/stubdom/newlib-fix-etext.patch
@@ -0,0 +1,23 @@
+GCC-14 in Debian Trixie i386 complains:
+
+../../../../newlib-1.16.0/libgloss/i386/cygmon-gmon.c: In function '_mcount':
+../../../../newlib-1.16.0/libgloss/i386/cygmon-gmon.c:227:14: error: type 
defaults to 'int' in declaration of '_etext' [-Wimplicit-int]
+  227 |       extern _etext();
+      |              ^~~~~~
+../../../../newlib-1.16.0/libgloss/i386/cygmon-gmon.c:228:14: error: type 
defaults to 'int' in declaration of '_ftext' [-Wimplicit-int]
+  228 |       extern _ftext();
+      |              ^~~~~~
+
+--- newlib-1.16.0/libgloss/i386/cygmon-gmon.c.orig     2025-08-09 
22:48:09.864068481 +0100
++++ newlib-1.16.0/libgloss/i386/cygmon-gmon.c  2025-08-09 22:52:18.458393484 
+0100
+@@ -224,8 +224,8 @@
+ 
+   if (! already_setup) 
+     {
+-      extern _etext();
+-      extern _ftext();
++      extern char _etext[];
++      extern char _ftext[];
+       already_setup = 1;
+       monstartup(_ftext, _etext);
+       atexit(_mcleanup);
--
generated by git-patchbot for /home/xen/git/xen.git#staging