23cf8028ec
* nds32/_argv.S: Replace syscall with break.
* nds32/_argvlen.S: Ditto.
* nds32/_chdir.S: Ditto.
* nds32/_chmod.S: Ditto.
* nds32/_close.S: Ditto.
* nds32/_exit.S: Ditto.
* nds32/_fstat.S: Ditto.
* nds32/_getpid.S: Ditto.
* nds32/_gettimeofday.S: Ditto.
* nds32/_isatty.S: Ditto.
* nds32/_kill.S: Ditto.
* nds32/_link.S: Ditto.
* nds32/_lseek.S: Ditto.
* nds32/_open.S: Ditto.
* nds32/_read.S: Ditto.
* nds32/_rename.S: Ditto.
* nds32/_stat.S: Ditto.
* nds32/_system.S: Ditto.
* nds32/_time.S: Ditto.
* nds32/_times.S: Ditto.
* nds32/_unlink.S: Ditto.
* nds32/_utime.S: Ditto.
* nds32/_write.S: Ditto.
* nds32/syscall_error_handler.S: Ditto.
* nds32/vh.h: New.
124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
#ifndef _VH_H
|
||
#define _VH_H
|
||
|
||
/*
|
||
BREAK #SWID definition:
|
||
0x00 – 0x1F: Free to use
|
||
0x20 – 0x1FF: Reserved for EX9
|
||
0x0200 – 0x7EFF: Free to use
|
||
0x7F00 – 0x7FFF: Reserved for virtual hosting
|
||
*/
|
||
/* These are #SWID defined for Virtual Hosting. */
|
||
#define VH_FOPEN 0x7F00
|
||
#define VH_FREOPEN 0x7F01
|
||
#define VH_FCLOSE 0x7F02
|
||
#define VH_FFLUSH 0x7F03
|
||
#define VH_FREAD 0x7F04
|
||
#define VH_FWRITE 0x7F05
|
||
#define VH_FGETC 0x7F06
|
||
#define VH_FGETS 0x7F07
|
||
#define VH_FPUTC 0x7F08
|
||
#define VH_FPUTS 0x7F09
|
||
#define VH_UNGETC 0x7F0A
|
||
#define VH_FTELL 0x7F0B
|
||
#define VH_FSEEK 0x7F0C
|
||
#define VH_REWIND 0x7F0D
|
||
#define VH_CLEARERR 0x7F0E
|
||
#define VH_FEOF 0x7F0F
|
||
#define VH_FERROR 0x7F10
|
||
#define VH_REMOVE 0x7F11
|
||
#define VH_TMPFILE 0x7F12
|
||
/* From here, define Low-level routines. */
|
||
#define VH_EXIT 0x7F20
|
||
#define VH_OPEN 0x7F21
|
||
#define VH_CLOSE 0x7F22
|
||
#define VH_READ 0x7F23
|
||
#define VH_WRITE 0x7F24
|
||
#define VH_LSEEK 0x7F25
|
||
#define VH_UNLINK 0x7F26
|
||
#define VH_RENAME 0x7F27
|
||
#define VH_FSTAT 0x7F28
|
||
#define VH_STAT 0x7F29
|
||
#define VH_GETTIMEOFDAY 0x7F2A
|
||
#define VH_ISATTY 0x7F2B
|
||
#define VH_SYSTEM 0x7F2C
|
||
#define VH_GETERR 0x7F2D /* The method we get errno. */
|
||
|
||
|
||
/* Define macros that generate assembly output.
|
||
Generate a System Call exception to notify GDB
|
||
to handle this virtual I/O routine. */
|
||
|
||
.macro TYPE0 name num
|
||
/* If r0 is not NULL(0), set errno. */
|
||
.text
|
||
.global \name
|
||
.type \name, @function
|
||
.align 2
|
||
\name:
|
||
BREAK \num /* Generate_Exception(Breakpoint); */
|
||
bnez $r0, 1f /* Branch if success.
|
||
r0 value is not NULL(0). */
|
||
BREAK VH_GETERR
|
||
l.w $r15, _impure_ptr
|
||
swi $r0, [$r15] /* Set errno. */
|
||
move $r0, 0 /* Set return value as 0. */
|
||
1:
|
||
ret
|
||
.size \name, .-\name
|
||
.endm
|
||
|
||
.macro TYPE1 name num
|
||
/* If r0 is EOF(-1), set errno. */
|
||
.text
|
||
.global \name
|
||
.type \name, @function
|
||
.align 2
|
||
\name:
|
||
BREAK \num /* Generate_Exception(Breakpoint); */
|
||
addi $r15, $r0, 1
|
||
bnezs8 1f /* Branch if success.
|
||
r0 value is EOF(-1). */
|
||
BREAK VH_GETERR
|
||
l.w $r15, _impure_ptr
|
||
swi $r0, [$r15] /* Set errno. */
|
||
move $r0, -1 /* Set return value as -1. */
|
||
1:
|
||
ret
|
||
.size \name, .-\name
|
||
.endm
|
||
|
||
.macro TYPE2 name num
|
||
/* If r0 is less than r2, set errno. */
|
||
.text
|
||
.global \name
|
||
.type \name, @function
|
||
.align 2
|
||
\name:
|
||
BREAK \num /* Generate_Exception(Breakpoint); */
|
||
slt $r15, $r0, $r2 /* If r15 is set, set errno. */
|
||
beqzs8 1f /* Branch if success.
|
||
r15 is zero. */
|
||
move $r4, $r0 /* Keep return value r0. */
|
||
BREAK VH_GETERR
|
||
l.w $r15, _impure_ptr
|
||
swi $r0, [$r15] /* Set errno. */
|
||
move $r0, $r4 /* Restore r0. */
|
||
1:
|
||
ret
|
||
.size \name, .-\name
|
||
.endm
|
||
|
||
.macro TYPE3 name num
|
||
/* No errors are defined. */
|
||
.text
|
||
.global \name
|
||
.type \name, @function
|
||
.align 2
|
||
\name:
|
||
BREAK \num /* Generate_Exception(Breakpoint); */
|
||
ret
|
||
.size \name, .-\name
|
||
.endm
|
||
#endif /* _VH_H */
|