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Add assembler code for more architectures: powerpc, m68k, hppa (all big endian) #411

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Add assembler code for more architectures: powerpc, m68k, hppa (all big endian) #411

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7c28ca0
Add 32-bit big-endian powerpc, m68 and hppa architectures
olebole Sep 18, 2024
a431b07
zsvjmp.S: Don't stick to abiversion 2 for ppc64
olebole Sep 18, 2024
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43 changes: 40 additions & 3 deletions unix/os/zsvjmp.S
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
/* Copyright(c) 1986 Association of Universities for Research in Astronomy
* Inc. (comment block, alpha, i386)
* Inc. (comment block, alpha, i386, powerpc, m68k)
* Copyright(c) 2008 Chisato Yamauchi (C-SODA/ISAS/JAXA) (amd64),
* Copyright(c) 2014 David Kuehling <dvdkhlng AT posteo TOD de> (mips)
* Copyright(c) 2014 John Long <[email protected]> (s390x)
Expand Down Expand Up @@ -33,8 +33,6 @@

#if defined(__aarch64__)
.arch armv8-a
#elif defined(__ppc64__) || defined(__PPC64__) || defined(__powerpc64__)
.abiversion 2
#elif defined (__arm__)
.arch armv6
#elif defined(__mips__) && (_MIPS_SIM == _ABIO32)
Expand Down Expand Up @@ -230,6 +228,45 @@ zsvjmp_:
j $t9
// note: no delay slot, filled by GAS

#elif defined(__powerpc__)

// R3 = buf, R4 = &status
li 11,0 // r11 = 0
stw 11,0(4) // set *status to zero
stw 4,0(3) // store &status in buf[0]
addi 3,3,4 // reference buf[1] for sigsetjmp
li 4,0 // zero signal mask for sigsetjmp
#if defined(__APPLE__)
b _sigsetjmp
#else
b __sigsetjmp
#endif

#elif defined(__m68k__)

move.l 8(%sp),%a1
clr.l (%a1)
move.l 4(%sp),%a0
move.l %a1,(%a0)+
clr.l 8(%sp)
move.l %a0,4(%sp)
jra __sigsetjmp

#elif defined(__hppa__)

.PROC
.CALLINFO // We don't need a frame
.ENTRY
copy %r25,%r28
stw %r0,0(%r25) // *status = 0
ldo 4(%r26),%r26 // arg0++
ldi 0,%r25
b __sigsetjmp
stw %r28,-4(%r26) // ((long **)buf)[0] = status;
nop // will never be reached
.EXIT
.PROCEND

#else
#error "Unsupported CPU type"
#endif
Expand Down