Patch from George Thanos adding support for the "e1" architecture.

1 files changed, 72 insertions, 0 deletions

diff --git a/libc/sysdeps/linux/e1/longjmp.c b/libc/sysdeps/linux/e1/longjmp.c
new file mode 100644
index 000000000..5770d4997
--- /dev/null
+++ b/libc/sysdeps/linux/e1/longjmp.c
@@ -0,0 +1,72 @@
+/*  This file is lisenced under LGPL
+ *  Copyright (C) 2002-2003,    George Thanos <george.thanos@gdt.gr>
+ *                              Yannis Mitsos <yannis.mitsos@gdt.gr>
+ */
+
+#include <syscall.h>
+#include <setjmp.h>
+#include <stdio.h>
+#include <signal.h>
+
+#define __NR_e1newSP  224
+static inline _syscall1(int, e1newSP, unsigned long, SavedSP )
+
+unsigned long jmpbuf_ptr;
+
+void longjmp(jmp_buf state, int value )
+{
+	if(!value)
+		state->__jmpbuf->ReturnValue = 1;
+	else
+		state->__jmpbuf->ReturnValue = value;
+
+	jmpbuf_ptr = (unsigned long)state; 
+	e1newSP(state->__jmpbuf->SavedSP);
+
+#define _state_ ((struct __jmp_buf_tag*)jmpbuf_ptr)
+	asm volatile("mov L0, %0\n\t"
+		     "mov L1, %1\n\t"
+		     "mov L2, %2\n\t"
+		     "mov G3, %3\n\t"
+		     "mov G4, %4\n\t"
+		     "ret PC, L1\n\t"
+		     :/*no output*/
+		     :"l"(_state_->__jmpbuf->ReturnValue),
+		      "l"(_state_->__jmpbuf->SavedPC),
+		      "l"(_state_->__jmpbuf->SavedSR),
+		      "l"(_state_->__jmpbuf->G3),
+		      "l"(_state_->__jmpbuf->G4)
+		     :"%G3", "%G4", "%L0", "%L1" );
+#undef _state_
+}
+
+void siglongjmp(sigjmp_buf state, int value )
+{
+	if( state->__mask_was_saved )
+		sigprocmask(SIG_SETMASK, &state->__saved_mask, NULL);
+
+	if(!value)
+		state->__jmpbuf->ReturnValue = 1;
+	else
+		state->__jmpbuf->ReturnValue = value;
+
+	jmpbuf_ptr = (unsigned long)state; 
+	e1newSP(state->__jmpbuf->SavedSP);
+	
+
+#define _state_ ((struct __jmp_buf_tag*)jmpbuf_ptr)
+	asm volatile("mov L0, %0\n\t"
+		     "mov L1, %1\n\t"
+		     "mov L2, %2\n\t"
+		     "mov G3, %3\n\t"
+		     "mov G4, %4\n\t"
+		     "ret PC, L1\n\t"
+		     :/*no output*/
+		     :"l"(_state_->__jmpbuf->ReturnValue),
+		      "l"(_state_->__jmpbuf->SavedPC),
+		      "l"(_state_->__jmpbuf->SavedSR),
+		      "l"(_state_->__jmpbuf->G3),
+		      "l"(_state_->__jmpbuf->G4)
+		     :"%G3", "%G4", "%L0", "%L1" );
+#undef _state_
+}