[PATCH v2] newlib: increase jump buffer length to 25 to fit all non-volatile registers for aarch64-pc-cygwin
Radek Barton <[email protected]>
| Newsgroups | gmane.comp.lib.newlib |
|---|---|
| Message-ID | <DB9PR83MB0923B5CA74A8B1FA66B371EB9241A@DB9PR83MB0923.EURPRD83.prod.outlook.com> |
Hello. If that's the case, here is the updated patch changing it to 25. Radek --- From 1ff3281cfb67719fe8103ed0bb11f7aa3cf39b3c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Radek=20Barto=C5=88?= <[email protected]> Date: Thu, 29 May 2025 20:34:56 +0200 Subject: [PATCH v2] newlib: increase jump buffer length to 25 to fit all non-volatile registers for aarch64-pc-cygwin MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Radek Bartoň <[email protected]> --- newlib/libc/include/machine/setjmp.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h index 102582c8e..001e1d999 100644 --- a/newlib/libc/include/machine/setjmp.h +++ b/newlib/libc/include/machine/setjmp.h @@ -22,7 +22,16 @@ _BEGIN_STD_C #endif #if defined(__aarch64__) -#define _JBLEN 22 +# if defined(__CYGWIN__) +/* + * Windows Arm64 ABI requires saving x19-x28, FP, LR, SP, FPCR, FPSR, d8-d15 + * and jump address to jmp_buf. On top of that, Cygwin requires saving + * TLS stack pointer. + */ +# define _JBLEN 25 +# else +# define _JBLEN 22 +# endif #define _JBTYPE long long #endif -- 2.49.0.vfs.0.4
v2-0001-newlib-increase-jump-buffer-length-to-25-to-fit-all-non-volatile-registers-for-aarch64-pc-cygwin.patch
(application/octet-stream, 1.1 KB)
From 1ff3281cfb67719fe8103ed0bb11f7aa3cf39b3c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Radek=20Barto=C5=88?= <[email protected]> Date: Thu, 29 May 2025 20:34:56 +0200 Subject: [PATCH v2] newlib: increase jump buffer length to 25 to fit all non-volatile registers for aarch64-pc-cygwin MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Radek Bartoň <[email protected]> --- newlib/libc/include/machine/setjmp.h | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/newlib/libc/include/machine/setjmp.h b/newlib/libc/include/machine/setjmp.h index 102582c8e..001e1d999 100644 --- a/newlib/libc/include/machine/setjmp.h +++ b/newlib/libc/include/machine/setjmp.h @@ -22,7 +22,16 @@ _BEGIN_STD_C #endif #if defined(__aarch64__) -#define _JBLEN 22 +# if defined(__CYGWIN__) +/* + * Windows Arm64 ABI requires saving x19-x28, FP, LR, SP, FPCR, FPSR, d8-d15 + * and jump address to jmp_buf. On top of that, Cygwin requires saving + * TLS stack pointer. + */ +# define _JBLEN 25 +# else +# define _JBLEN 22 +# endif #define _JBTYPE long long #endif -- 2.49.0.vfs.0.4