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| author | Rich Felker <dalias@aerifal.cx> | 2018-06-14 14:26:30 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2018-06-19 13:24:05 -0400 |
| commit | f81e44a0d96c88e052e51982f9fdd6fe0a212b46 (patch) | |
| tree | e8a21317b5af5a2d09543ffcb0fbf1f0a668b63a /src/thread/m68k | |
| parent | 18f02c42a2b5397e8541f4663eb6ca00c1a806dd (diff) | |
| download | musl-f81e44a0d96c88e052e51982f9fdd6fe0a212b46.tar.gz musl-f81e44a0d96c88e052e51982f9fdd6fe0a212b46.tar.xz musl-f81e44a0d96c88e052e51982f9fdd6fe0a212b46.zip | |
add m68k port
three ABIs are supported: the default with 68881 80-bit fpu format and results returned in floating point registers, softfloat-only with the same format, and coldfire fpu with IEEE single/double only. only the first is tested at all, and only under qemu which has fpu emulation bugs. basic functionality smoke tests have been performed for the most common arch-specific breakage via libc-test and qemu user-level emulation. some sysvipc failures remain, but are shared with other big endian archs and will be fixed separately.
Diffstat (limited to 'src/thread/m68k')
| -rw-r--r-- | src/thread/m68k/__m68k_read_tp.s | 8 | ||||
| -rw-r--r-- | src/thread/m68k/clone.s | 24 | ||||
| -rw-r--r-- | src/thread/m68k/syscall_cp.s | 26 |
3 files changed, 58 insertions, 0 deletions
diff --git a/src/thread/m68k/__m68k_read_tp.s b/src/thread/m68k/__m68k_read_tp.s new file mode 100644 index 00000000..86886da8 --- /dev/null +++ b/src/thread/m68k/__m68k_read_tp.s @@ -0,0 +1,8 @@ +.text +.global __m68k_read_tp +.type __m68k_read_tp,@function +__m68k_read_tp: + move.l #333,%d0 + trap #0 + move.l %d0,%a0 + rts diff --git a/src/thread/m68k/clone.s b/src/thread/m68k/clone.s new file mode 100644 index 00000000..5b61b6fa --- /dev/null +++ b/src/thread/m68k/clone.s @@ -0,0 +1,24 @@ +.text +.global __clone +.type __clone,@function +__clone: + movem.l %d2-%d5,-(%sp) + move.l #120,%d0 + move.l 28(%sp),%d1 + move.l 24(%sp),%d2 + and.l #-16,%d2 + move.l 36(%sp),%d3 + move.l 44(%sp),%d4 + move.l 40(%sp),%d5 + move.l 20(%sp),%a0 + move.l 32(%sp),%a1 + trap #0 + tst.l %d0 + beq 1f + movem.l (%sp)+,%d2-%d5 + rts +1: move.l %a1,-(%sp) + jsr (%a0) + move.l #1,%d0 + trap #0 + clr.b 0 diff --git a/src/thread/m68k/syscall_cp.s b/src/thread/m68k/syscall_cp.s new file mode 100644 index 00000000..5628a896 --- /dev/null +++ b/src/thread/m68k/syscall_cp.s @@ -0,0 +1,26 @@ +.text +.global __cp_begin +.hidden __cp_begin +.global __cp_end +.hidden __cp_end +.global __cp_cancel +.hidden __cp_cancel +.hidden __cancel +.global __syscall_cp_asm +.hidden __syscall_cp_asm +.type __syscall_cp_asm,@function +__syscall_cp_asm: + movem.l %d2-%d5,-(%sp) + movea.l 20(%sp),%a0 +__cp_begin: + move.l (%a0),%d0 + bne __cp_cancel + movem.l 24(%sp),%d0-%d5/%a0 + trap #0 +__cp_end: + movem.l (%sp)+,%d2-%d5 + rts +__cp_cancel: + movem.l (%sp)+,%d2-%d5 + move.l __cancel-.-8,%a1 + jmp (%pc,%a1) |