Contribute sh64-elf.

2001-03-13  Alexandre Oliva  <aoliva@redhat.com>
* configure.host (newlib_cflags) [sh*-*-*]: Enable long long
support in printf.
2001-01-29  Alexandre Oliva  <aoliva@redhat.com>
* libc/machine/sh/setjmp.S [SH5]: Switch to SHmedia mode before
any labels.
2001-01-24  Alexandre Oliva  <aoliva@redhat.com>
* libc/sys/sh/trap.S (___trap34) [SH5]: Don't trash r2.
2000-12-16  Alexandre Oliva  <aoliva@redhat.com>
* libc/machine/sh/configure.in: Rework conditionals.
* libc/machine/sh/Makefile.am: Likewise.
* libc/machine/sh/configure, libc/machine/sh/Makefile.in: Rebuilt.
2000-12-01  Alexandre Oliva  <aoliva@redhat.com>
* configure.host: Match `sh*'.
* libc/include/machine/setjmp.h: Define for SH5.
* libc/machine/sh/configure.in: Detect SH5.
* libc/machine/sh/configure: Rebuilt.
* libc/machine/sh/Makefile.am: Use only setjmp.S for SH5.
* libc/machine/sh/Makefile.in: Rebuilt.
* libc/machine/sh/asm.h: Adjust for SH5.
* libc/machine/sh/setjmp.S: Implement in SHmedia.
* libc/sys/sh/crt0.S: Likewise.
* libc/sys/sh/trap.S: Likewise.

1 files changed, 67 insertions, 0 deletions

diff --git a/newlib/libc/sys/sh/crt0.S b/newlib/libc/sys/sh/crt0.S
index 88c9fac0d..6eccf3a4b 100644
--- a/newlib/libc/sys/sh/crt0.S
+++ b/newlib/libc/sys/sh/crt0.S
@@ -1,3 +1,69 @@
+
+#ifdef __SH5__
+	.section .data,"aw"
+	.global ___data
+___data:
+
+	.section .rodata,"a"
+	.global ___rodata
+___rodata:
+
+#if __SH5__ == 64
+	.section .text,"ax"
+#define LOAD_ADDR(sym, reg) \
+	movi	(sym >> 48) & 65535, reg; \
+	shori	(sym >> 32) & 65535, reg; \
+	shori	(sym >> 16) & 65535, reg; \
+	shori	sym & 65535, reg
+#else
+	.mode	SHmedia
+	.section .text..SHmedia32,"ax"
+#define LOAD_ADDR(sym, reg) \
+	movi	(sym >> 16) & 65535, reg; \
+	shori	sym & 65535, reg
+#endif
+	.global start
+start:
+	LOAD_ADDR (_stack, r15)
+
+	pt/l	zero_bss_loop, tr0
+	pt/l	_atexit, tr1
+	pt/l	_init, tr5
+	pt/l	_main, tr6
+	pt/l	_exit, tr7
+
+	! zero out bss
+	LOAD_ADDR (_edata, r0)
+	LOAD_ADDR (_end, r1)
+zero_bss_loop:
+	stx.q	r0, r63, r63
+	addi	r0, 8, r0
+	bgt/l	r1, r0, tr0
+
+	LOAD_ADDR (___data, r26)
+	LOAD_ADDR (___rodata, r27)
+
+#if ! __SH4_NOFPU__
+	getcon	cr0, r0
+	movi	1, r1
+	shlli	r1, 15, r1
+	or	r1, r0, r0
+	putcon	r0, cr0
+#endif
+
+	! arrange for exit to call fini
+	LOAD_ADDR (_fini, r2)
+	blink	tr1, r18
+
+	! call init
+	blink	tr5, r18
+
+	! call the mainline
+	blink	tr6, r18
+
+	! call exit
+	blink	tr7, r18
+#else
 	.section .text
 	.global	start
 start:
@@ -46,6 +112,7 @@ main_k:
 	.long	_main
 exit_k:
 	.long	_exit
+#endif
 
 #ifdef __ELF__
 	.section .stack,"aw"