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authorRich Felker <dalias@aerifal.cx>2018-06-14 14:26:30 -0400
committerRich Felker <dalias@aerifal.cx>2018-06-19 13:24:05 -0400
commitf81e44a0d96c88e052e51982f9fdd6fe0a212b46 (patch)
treee8a21317b5af5a2d09543ffcb0fbf1f0a668b63a /src/signal
parent18f02c42a2b5397e8541f4663eb6ca00c1a806dd (diff)
downloadmusl-f81e44a0d96c88e052e51982f9fdd6fe0a212b46.tar.gz
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/signal')
-rw-r--r--src/signal/m68k/sigsetjmp.s29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/signal/m68k/sigsetjmp.s b/src/signal/m68k/sigsetjmp.s
new file mode 100644
index 00000000..09bfa646
--- /dev/null
+++ b/src/signal/m68k/sigsetjmp.s
@@ -0,0 +1,29 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+ move.l 8(%sp),%d0
+ beq 1f
+
+ movea.l 4(%sp),%a1
+ move.l (%sp)+,156(%a1)
+ move.l %a2,156+4+8(%a1)
+ movea.l %a1,%a2
+
+.hidden ___setjmp
+ lea ___setjmp-.-8,%a1
+ jsr (%pc,%a1)
+
+ move.l 156(%a2),-(%sp)
+ move.l %a2,4(%sp)
+ move.l %d0,8(%sp)
+ movea.l 156+4+8(%a2),%a2
+
+.hidden __sigsetjmp_tail
+ lea __sigsetjmp_tail-.-8,%a1
+ jmp (%pc,%a1)
+
+1: lea ___setjmp-.-8,%a1
+ jmp (%pc,%a1)