JehanneOS/newlib
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Contribute sh64-elf.

Browse Source 
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.
This commit is contained in:
Alexandre Oliva
2002-02-08 07:11:13 +00:00
parent 561486e7f1
commit 9f25eed9c9
11 changed files with 403 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
newlib/libc/sys/sh/crt0.S
View File

@ -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"

28
newlib/libc/sys/sh/trap.S
View File

@ -1,3 +1,30 @@
#if __SH5__
.mode SHmedia
#if __SH5__ == 32 && __SHMEDIA__
.section .text..SHmedia32, "ax"
#else
.text
#endif
.global ___trap34
___trap34:
movi 34, r0
trapa r0
pt/l ret, tr1
ptabs/l r18, tr0
beqi r1, 0, tr1
#if __SH5__ == 64
movi ((_errno >> 48) & 65535), r0
shori ((_errno >> 32) & 65535), r0
shori ((_errno >> 16) & 65535), r0
#else
movi ((_errno >> 16) & 65535), r0
#endif
shori (_errno & 65535), r0
stx.l r0, r63, r1
ret:
blink tr0, r63
#else
.text
.global ___trap34
___trap34:
@ -13,3 +40,4 @@ ret:
.align 2
perrno:
.long _errno
#endif /* ! __SH5__ */