1 files changed, 67 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/c6x/bsd-setjmp.S b/libc/sysdeps/linux/c6x/bsd-setjmp.S
new file mode 100644
index 000000000..3ab597d8e
--- /dev/null
+++ b/libc/sysdeps/linux/c6x/bsd-setjmp.S
@@ -0,0 +1,67 @@
+ ;
+ ; Port of uClibc for TMS320C6000 DSP architecture
+ ; Copyright (C) 2004 Texas Instruments Incorporated
+ ; Author of TMS320C6000 port: Aurelien Jacquiot
+ ;
+ ; This program is free software; you can redistribute it and/or modify it
+ ; under the terms of the GNU Library General Public License as published by
+ ; the Free Software Foundation; either version 2 of the License, or (at your
+ ; option) any later version.
+ ;
+ ; This program is distributed in the hope that it will be useful, but WITHOUT
+ ; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
+ ; for more details.
+ ;
+ ; You should have received a copy of the GNU Library General Public License
+ ; along with this program; if not, write to the Free Software Foundation,
+ ; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ ;
+
+	.global setjmp
+setjmp:
+#if 0
+.if 1 /* was: .if (CONFIG_UCLIBC_SHARED == 0) */
+
+	MVKL .S1	___curr_eh_stack_entry,A6
+||	SUB .D1X	A4,B15,A3
+	MVKH .S1	___curr_eh_stack_entry,A6
+||	CMPGT .L1	A3,4,A0		; A0 set if C++ exceptions case
+
+	LDW .D1T1	*A6,A2
+.else
+	MVKL .S2	(___curr_eh_stack_entry - $bss)/4,B6
+||	SUB .D1X	A4,B15,A3
+	MVKH .S2	(___curr_eh_stack_entry - $bss)/4,B6
+||	CMPGT .L1	A3,4,A0		; A0 set if C++ exceptions case
+
+	LDW .D2T1	*+B14[B6],A2
+.endif
+	NOP
+#else
+	MVK .S1		0, A0
+#endif
+
+	MVK .L2	1,B4		; indicate to ___sigjmp_save to save signal mask
+||	MV .D2X	A4,B6		; jmp_buf address
+||	STW .D1T2	B3,*+A4(48)	; return address
+
+	ADDAW .D1	A2,2,A2
+ [A0]	CMPEQ .L1	A4,A2,A0	; A0 set if C++ exceptions case
+
+	STW .D1T1	A10,*+A4(0)
+||	STW .D2T2	B10,*+B6(4)
+||[!A0]	B .S1		__sigjmp_save		; branch to ___sigjmp_save in 5 cycles
+||[A0]	B .S2		B3
+
+	STW .D1T1	A11,*+A4(8)
+||	STW .D2T2	B11,*+B6(12)
+	STW .D1T1	A12,*+A4(16)
+||	STW .D2T2	B12,*+B6(20)
+	STW .D1T1	A13,*+A4(24)
+||	STW .D2T2	B13,*+B6(28)
+	STW .D1T1	A14,*+A4(32)
+||	STW .D2T2	B14,*+B6(36)
+	STW .D1T1	A15,*+A4(40)
+||	STW .D2T2	B15,*+B6(44)
+||[A0]	ZERO .L1	A4		; returns 0 for the C++ case