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[src/trunk]: src Basic unwind support for HPPA.
details: https://anonhg.NetBSD.org/src/rev/147a84e11770
branches: trunk
changeset: 795597:147a84e11770
user: joerg <joerg%NetBSD.org@localhost>
date: Sat Apr 19 21:21:24 2014 +0000
description:
Basic unwind support for HPPA.
diffstat:
share/mk/bsd.own.mk | 3 +-
sys/lib/libunwind/Registers.hpp | 75 +++++++++++++++++++
sys/lib/libunwind/unwind_registers.S | 134 +++++++++++++++++++++++++++++++++++
3 files changed, 211 insertions(+), 1 deletions(-)
diffs (250 lines):
diff -r e77d9f1a1c88 -r 147a84e11770 share/mk/bsd.own.mk
--- a/share/mk/bsd.own.mk Sat Apr 19 19:47:55 2014 +0000
+++ b/share/mk/bsd.own.mk Sat Apr 19 21:21:24 2014 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: bsd.own.mk,v 1.798 2014/04/15 18:40:34 joerg Exp $
+# $NetBSD: bsd.own.mk,v 1.799 2014/04/19 21:21:24 joerg Exp $
# This needs to be before bsd.init.mk
.if defined(BSD_MK_COMPAT_FILE)
@@ -100,6 +100,7 @@
.endif
_LIBC_UNWIND_SUPPORT.alpha= yes
+_LIBC_UNWIND_SUPPORT.hppa= yes
_LIBC_UNWIND_SUPPORT.i386= yes
_LIBC_UNWIND_SUPPORT.m68k= yes
_LIBC_UNWIND_SUPPORT.powerpc= yes
diff -r e77d9f1a1c88 -r 147a84e11770 sys/lib/libunwind/Registers.hpp
--- a/sys/lib/libunwind/Registers.hpp Sat Apr 19 19:47:55 2014 +0000
+++ b/sys/lib/libunwind/Registers.hpp Sat Apr 19 21:21:24 2014 +0000
@@ -720,6 +720,79 @@
uint64_t fpreg[31];
};
+enum {
+ DWARF_HPPA_R1 = 1,
+ DWARF_HPPA_R31 = 31,
+ DWARF_HPPA_FR4L = 32,
+ DWARF_HPPA_FR31H = 87,
+
+ REGNO_HPPA_PC = 0,
+ REGNO_HPPA_R1 = 1,
+ REGNO_HPPA_R2 = 2,
+ REGNO_HPPA_R30 = 30,
+ REGNO_HPPA_R31 = 31,
+ REGNO_HPPA_FR4L = 32,
+ REGNO_HPPA_FR31H = 87,
+};
+
+class Registers_HPPA {
+public:
+ enum {
+ LAST_REGISTER = REGNO_HPPA_FR31H,
+ LAST_RESTORE_REG = REGNO_HPPA_FR31H,
+ RETURN_REG = REGNO_HPPA_R2,
+ RETURN_OFFSET = -3, // strictly speaking, this is a mask
+ };
+
+ __dso_hidden Registers_HPPA();
+
+ static int dwarf2regno(int num) {
+ if (num >= DWARF_HPPA_R1 && num <= DWARF_HPPA_R31)
+ return REGNO_HPPA_R1 + (num - DWARF_HPPA_R1);
+ if (num >= DWARF_HPPA_FR4L && num <= DWARF_HPPA_FR31H)
+ return REGNO_HPPA_FR4L + (num - DWARF_HPPA_FR31H);
+ return LAST_REGISTER + 1;
+ }
+
+ bool validRegister(int num) const {
+ return num >= REGNO_HPPA_PC && num <= REGNO_HPPA_R31;
+ }
+
+ uint64_t getRegister(int num) const {
+ assert(validRegister(num));
+ return reg[num];
+ }
+
+ void setRegister(int num, uint64_t value) {
+ assert(validRegister(num));
+ reg[num] = value;
+ }
+
+ uint64_t getIP() const { return reg[REGNO_HPPA_PC]; }
+
+ void setIP(uint64_t value) { reg[REGNO_HPPA_PC] = value; }
+
+ uint64_t getSP() const { return reg[REGNO_HPPA_R30]; }
+
+ void setSP(uint64_t value) { reg[REGNO_HPPA_R30] = value; }
+
+ bool validFloatVectorRegister(int num) const {
+ return num >= REGNO_HPPA_FR4L && num <= REGNO_HPPA_FR31H;
+ }
+
+ void copyFloatVectorRegister(int num, uint64_t addr_) {
+ assert(validFloatVectorRegister(num));
+ const void *addr = reinterpret_cast<const void *>(addr_);
+ memcpy(fpreg + (num - REGNO_HPPA_FR4L), addr, sizeof(fpreg[0]));
+ }
+
+ __dso_hidden void jumpto() const __dead;
+
+private:
+ uint32_t reg[REGNO_HPPA_R31 + 1];
+ uint32_t fpreg[56];
+};
+
#if __i386__
typedef Registers_x86 NativeUnwindRegisters;
#elif __x86_64__
@@ -740,6 +813,8 @@
typedef Registers_SPARC NativeUnwindRegisters;
#elif __alpha__
typedef Registers_Alpha NativeUnwindRegisters;
+#elif __hppa__
+typedef Registers_HPPA NativeUnwindRegisters;
#endif
} // namespace _Unwind
diff -r e77d9f1a1c88 -r 147a84e11770 sys/lib/libunwind/unwind_registers.S
--- a/sys/lib/libunwind/unwind_registers.S Sat Apr 19 19:47:55 2014 +0000
+++ b/sys/lib/libunwind/unwind_registers.S Sat Apr 19 21:21:24 2014 +0000
@@ -732,3 +732,137 @@
ret $31, ($26), 1
END(_ZNK7_Unwind15Registers_Alpha6jumptoEv)
#endif
+
+#if defined(__hppa__)
+LEAF_ENTRY_NOPROFILE(_ZN7_Unwind14Registers_HPPAC1Ev)
+ stw %r2, 0(%r26)
+ stw %r1, 4(%r26)
+ stw %r2, 8(%r26)
+ stw %r3, 12(%r26)
+ stw %r4, 16(%r26)
+ stw %r5, 20(%r26)
+ stw %r6, 24(%r26)
+ stw %r7, 28(%r26)
+ stw %r8, 32(%r26)
+ stw %r9, 36(%r26)
+ stw %r10, 40(%r26)
+ stw %r11, 44(%r26)
+ stw %r12, 48(%r26)
+ stw %r13, 52(%r26)
+ stw %r14, 56(%r26)
+ stw %r15, 60(%r26)
+ stw %r16, 64(%r26)
+ stw %r17, 68(%r26)
+ stw %r18, 72(%r26)
+ stw %r19, 76(%r26)
+ stw %r20, 80(%r26)
+ stw %r21, 84(%r26)
+ stw %r22, 88(%r26)
+ stw %r23, 92(%r26)
+ stw %r24, 96(%r26)
+ stw %r25, 100(%r26)
+ stw %r26, 104(%r26)
+ stw %r27, 108(%r26)
+ stw %r28, 112(%r26)
+ stw %r29, 116(%r26)
+ stw %r30, 120(%r26)
+ stw %r31, 124(%r26)
+ ldi 128, %r19
+ addl %r19, %r26, %r19
+ fstds,ma %fr4, 8(%r19)
+ fstds,ma %fr5, 8(%r19)
+ fstds,ma %fr6, 8(%r19)
+ fstds,ma %fr7, 8(%r19)
+ fstds,ma %fr8, 8(%r19)
+ fstds,ma %fr9, 8(%r19)
+ fstds,ma %fr10, 8(%r19)
+ fstds,ma %fr11, 8(%r19)
+ fstds,ma %fr12, 8(%r19)
+ fstds,ma %fr13, 8(%r19)
+ fstds,ma %fr14, 8(%r19)
+ fstds,ma %fr15, 8(%r19)
+ fstds,ma %fr16, 8(%r19)
+ fstds,ma %fr17, 8(%r19)
+ fstds,ma %fr18, 8(%r19)
+ fstds,ma %fr19, 8(%r19)
+ fstds,ma %fr20, 8(%r19)
+ fstds,ma %fr21, 8(%r19)
+ fstds,ma %fr22, 8(%r19)
+ fstds,ma %fr23, 8(%r19)
+ fstds,ma %fr24, 8(%r19)
+ fstds,ma %fr25, 8(%r19)
+ fstds,ma %fr19, 8(%r19)
+ fstds,ma %fr27, 8(%r19)
+ fstds,ma %fr28, 8(%r19)
+ fstds,ma %fr29, 8(%r19)
+ fstds,ma %fr30, 8(%r19)
+ fstds,ma %fr31, 8(%r19)
+ ldw 76(%r26), %r19
+ bv,n %r0(%r2)
+EXIT(_ZN7_Unwind14Registers_HPPAC1Ev)
+
+LEAF_ENTRY_NOPROFILE(_ZNK7_Unwind14Registers_HPPA6jumptoEv)
+ ldi 128, %r19
+ addl %r19, %r26, %r19
+ fldds,ma 8(%r19), %fr4
+ fldds,ma 8(%r19), %fr5
+ fldds,ma 8(%r19), %fr6
+ fldds,ma 8(%r19), %fr7
+ fldds,ma 8(%r19), %fr8
+ fldds,ma 8(%r19), %fr9
+ fldds,ma 8(%r19), %fr10
+ fldds,ma 8(%r19), %fr11
+ fldds,ma 8(%r19), %fr12
+ fldds,ma 8(%r19), %fr13
+ fldds,ma 8(%r19), %fr14
+ fldds,ma 8(%r19), %fr15
+ fldds,ma 8(%r19), %fr16
+ fldds,ma 8(%r19), %fr17
+ fldds,ma 8(%r19), %fr18
+ fldds,ma 8(%r19), %fr19
+ fldds,ma 8(%r19), %fr20
+ fldds,ma 8(%r19), %fr21
+ fldds,ma 8(%r19), %fr22
+ fldds,ma 8(%r19), %fr23
+ fldds,ma 8(%r19), %fr24
+ fldds,ma 8(%r19), %fr25
+ fldds,ma 8(%r19), %fr26
+ fldds,ma 8(%r19), %fr27
+ fldds,ma 8(%r19), %fr28
+ fldds,ma 8(%r19), %fr29
+ fldds,ma 8(%r19), %fr30
+ fldds,ma 8(%r19), %fr31
+ ldw 0(%r26), %r2
+ ldw 4(%r26), %r1
+ ldw 12(%r26), %r3
+ ldw 16(%r26), %r4
+ ldw 20(%r26), %r5
+ ldw 24(%r26), %r6
+ ldw 28(%r26), %r7
+ ldw 32(%r26), %r8
+ ldw 36(%r26), %r9
+ ldw 40(%r26), %r10
+ ldw 44(%r26), %r11
+ ldw 48(%r26), %r12
+ ldw 52(%r26), %r13
+ ldw 56(%r26), %r14
+ ldw 60(%r26), %r15
+ ldw 64(%r26), %r16
+ ldw 68(%r26), %r17
+ ldw 72(%r26), %r18
+ ldw 76(%r26), %r19
+ ldw 80(%r26), %r20
+ ldw 84(%r26), %r21
+ ldw 88(%r26), %r22
+ ldw 92(%r26), %r23
+ ldw 96(%r26), %r24
+ ldw 100(%r26), %r25
+ ldw 108(%r26), %r27
+ ldw 112(%r26), %r28
+ ldw 116(%r26), %r29
+ ldw 120(%r26), %r30
+ ldw 124(%r26), %r31
+ ldw 104(%r26), %r26
+ bv,n %r0(%r2)
+EXIT(_ZNK7_Unwind14Registers_HPPA6jumptoEv)
+#endif
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