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| author | Daniel Cederman <cederman@gaisler.com> | 2019-01-09 15:06:05 +0300 |
|---|---|---|
| committer | Daniel Cederman <cederman@gaisler.com> | 2019-01-09 15:06:05 +0300 |
| commit | b2be18f42dd8f5b0e20c6c3c3a186716ec70191f (patch) | |
| tree | 1aed42cf7a9a52a86f6c59dd911ef6b51d37b43e /libunwind/src/UnwindCursor.hpp | |
| parent | a9bc4bd814ca3d4b1b7928522d9f9b6be188c75c (diff) | |
[Sparc] Add Sparc V8 support
Summary:
Adds the register class implementation for Sparc.
Adds support for DW_CFA_GNU_window_save.
Adds save and restore context functionality.
On Sparc the return address is the address of the call instruction,
so an offset needs to be added when returning to skip the call instruction
and its delay slot. If the function returns a struct it is also necessary
to skip one extra instruction.
Reviewers: jyknight, mclow.lists, mstorsjo, compnerd
Reviewed By: compnerd
Subscribers: fedor.sergeev, JDevlieghere, ldionne, libcxx-commits
Differential Revision: https://reviews.llvm.org/D55763
llvm-svn: 350705
Diffstat (limited to 'libunwind/src/UnwindCursor.hpp')
| -rw-r--r-- | libunwind/src/UnwindCursor.hpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/libunwind/src/UnwindCursor.hpp b/libunwind/src/UnwindCursor.hpp index a13080691843..5b0792171575 100644 --- a/libunwind/src/UnwindCursor.hpp +++ b/libunwind/src/UnwindCursor.hpp @@ -981,6 +981,10 @@ private: } #endif +#if defined(_LIBUNWIND_TARGET_SPARC) + int stepWithCompactEncoding(Registers_sparc &) { return UNW_EINVAL; } +#endif + bool compactSaysUseDwarf(uint32_t *offset=NULL) const { R dummy; return compactSaysUseDwarf(dummy, offset); @@ -1042,6 +1046,11 @@ private: return true; } #endif + +#if defined(_LIBUNWIND_TARGET_SPARC) + bool compactSaysUseDwarf(Registers_sparc &, uint32_t *) const { return true; } +#endif + #endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) @@ -1103,6 +1112,11 @@ private: return 0; } #endif + +#if defined(_LIBUNWIND_TARGET_SPARC) + compact_unwind_encoding_t dwarfEncoding(Registers_sparc &) const { return 0; } +#endif + #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) |