From: Georg-Johann Lay <avr@gjlay.de>
Date: Tue, 20 Jan 2026 10:06:09 +0000 (+0100)
Subject: AVR: AVR-LibC's setjmp preserves callee-saved regs.
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cb6ce927ae0c084e9cfb4d73f07fef505026ca64;p=thirdparty%2Fgcc.git

AVR: AVR-LibC's setjmp preserves callee-saved regs.

gcc/
	* config/avr/avr.cc (TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P):
	Return true when WITH_AVRLIBC.
---

diff --git a/gcc/config/avr/avr.cc b/gcc/config/avr/avr.cc
index 52e63cdff89..b0e9d9000e4 100644
--- a/gcc/config/avr/avr.cc
+++ b/gcc/config/avr/avr.cc
@@ -16967,6 +16967,11 @@ avr_unwind_word_mode ()
 #undef TARGET_C_MODE_FOR_FLOATING_TYPE
 #define TARGET_C_MODE_FOR_FLOATING_TYPE avr_c_mode_for_floating_type
 
+#if defined WITH_AVRLIBC
+#undef  TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P
+#define TARGET_SETJMP_PRESERVES_NONVOLATILE_REGS_P hook_bool_void_true
+#endif // WITH_AVRLIBC
+
 gcc_target targetm = TARGET_INITIALIZER;