svn commit: r308483 - head/contrib/llvm/projects/libunwind/src
Ruslan Bukin
br at FreeBSD.org
Thu Nov 10 12:54:34 UTC 2016
Author: br
Date: Thu Nov 10 12:54:33 2016
New Revision: 308483
URL: https://svnweb.freebsd.org/changeset/base/308483
Log:
Implement riscv jumpto() so world can be compiled.
Sponsored by: DARPA, AFRL
Sponsored by: HEIF5
Modified:
head/contrib/llvm/projects/libunwind/src/UnwindRegistersRestore.S
Modified: head/contrib/llvm/projects/libunwind/src/UnwindRegistersRestore.S
==============================================================================
--- head/contrib/llvm/projects/libunwind/src/UnwindRegistersRestore.S Thu Nov 10 11:14:51 2016 (r308482)
+++ head/contrib/llvm/projects/libunwind/src/UnwindRegistersRestore.S Thu Nov 10 12:54:33 2016 (r308483)
@@ -480,6 +480,50 @@ DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9li
#elif defined(__riscv__)
-/* RISCVTODO */
+//
+// void libunwind::Registers_riscv::jumpto()
+//
+// On entry:
+// thread_state pointer is in a0
+//
+ .p2align 2
+DEFINE_LIBUNWIND_PRIVATE_FUNCTION(_ZN9libunwind15Registers_riscv6jumptoEv)
+ // x0 is zero
+ ld x1, (8 * 1)(a0)
+ ld x2, (8 * 2)(a0)
+ ld x3, (8 * 3)(a0)
+ ld x4, (8 * 4)(a0)
+ ld x5, (8 * 5)(a0)
+ ld x6, (8 * 6)(a0)
+ ld x7, (8 * 7)(a0)
+ ld x8, (8 * 8)(a0)
+ ld x9, (8 * 9)(a0)
+ // skip a0 for now
+ ld x11, (8 * 11)(a0)
+ ld x12, (8 * 12)(a0)
+ ld x13, (8 * 13)(a0)
+ ld x14, (8 * 14)(a0)
+ ld x15, (8 * 15)(a0)
+ ld x16, (8 * 16)(a0)
+ ld x17, (8 * 17)(a0)
+ ld x18, (8 * 18)(a0)
+ ld x19, (8 * 19)(a0)
+ ld x20, (8 * 20)(a0)
+ ld x21, (8 * 21)(a0)
+ ld x22, (8 * 22)(a0)
+ ld x23, (8 * 23)(a0)
+ ld x24, (8 * 24)(a0)
+ ld x25, (8 * 25)(a0)
+ ld x26, (8 * 26)(a0)
+ ld x27, (8 * 27)(a0)
+ ld x28, (8 * 28)(a0)
+ ld x29, (8 * 29)(a0)
+ ld x30, (8 * 30)(a0)
+ ld x31, (8 * 31)(a0)
+ ld x10, (8 * 10)(a0) // restore a0
+
+ /* RISCVTODO: restore FPU registers */
+
+ ret // jump to ra
#endif
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