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| author | Jeff Johnston <jjohnstn@redhat.com> | 2014-03-21 20:16:14 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2014-03-21 20:16:14 +0000 |
| commit | 9246fbeced54764200564131ab1fad7e7819e91f (patch) | |
| tree | a68687ead3b627c5efbf79c0a2da5155b433ec84 /libgloss/nds32/syscall_extra.h | |
| parent | 5805cb1f8c1644bb888b03538af2aec30ca27da0 (diff) | |
| download | cygnal-9246fbeced54764200564131ab1fad7e7819e91f.tar.gz cygnal-9246fbeced54764200564131ab1fad7e7819e91f.tar.bz2 cygnal-9246fbeced54764200564131ab1fad7e7819e91f.zip | |
2014-03-21 Sabrini Ni <sabrinanitw@gmail.com>
* nds32/syscall_extra.h: Define macro.
* nds32/syscall_argv.S: Use define macro.
* nds32/syscall_argvlen.S: Ditto.
* nds32/syscall_chdir.S: Ditto.
* nds32/syscall_chmod.S: Ditto.
* nds32/syscall_close.S: Ditto.
* nds32/syscall_fstat.S: Ditto.
* nds32/syscall_getpid.S: Ditto.
* nds32/syscall_gettimeofday.S: Ditto.
* nds32/syscall_isatty.S: Ditto.
* nds32/syscall_kill.S: Ditto.
* nds32/syscall_link.S: Ditto.
* nds32/syscall_lseek.S: Ditto.
* nds32/syscall_open.S: Ditto.
* nds32/syscall_read.S: Ditto.
* nds32/syscall_rename.S: Ditto.
* nds32/syscall_stat.S: Ditto.
* nds32/syscall_system.S: Ditto.
* nds32/syscall_time.S: Ditto.
* nds32/syscall_times.S: Ditto.
* nds32/syscall_unlink.S: Ditto.
* nds32/syscall_utime.S: Ditto.
* nds32/syscall_write.S: Ditto.
Diffstat (limited to 'libgloss/nds32/syscall_extra.h')
| -rw-r--r-- | libgloss/nds32/syscall_extra.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/libgloss/nds32/syscall_extra.h b/libgloss/nds32/syscall_extra.h index f2ab2d562..73d36b973 100644 --- a/libgloss/nds32/syscall_extra.h +++ b/libgloss/nds32/syscall_extra.h @@ -38,4 +38,27 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #define SYS_geterr 6001 + +/* Define macros that generate assembly output. */ +.macro SYS_WRAPPER name num + .text + .global \name + .type \name, @function + .align 2 +\name: + /* Make syscall with arg=`\num'. + Reture value `-1' stored in $r0 means there is something wrong. + If there is something wrong, make syscall to get `SYS_geterr' to get + error code to see what exactly happens and store it in errno . */ + syscall \num /* Make syscall with arg=`\num'. */ + addi $r1, $r0, 1 + bnez $r1, 1f /* Branch if success. */ + syscall SYS_geterr /* There is something wrong. */ + s.w $r0, errno /* Store error code into errno. */ + move $r0, -1 +1: + ret + .size \name, .-\name +.endm + #endif /* _SYSCALL_EXTRA_H */ |