From e6b691aaee2126afb5fdf66a030dcf2ae89cd56c Mon Sep 17 00:00:00 2001 From: emaste Date: Mon, 25 Jul 2016 19:37:10 +0000 Subject: Merge LLVM libunwind fixes r302475: libunwind: limit stack usage in unwind cursor This may be reworked upstream but in the interim should address the stack usage issue reported in the PR. r303061: libunwind: Properly align _Unwind_Exception. _Unwind_Exception is required to be double word aligned. GCC has interpreted this to mean "use the maximum useful alignment for the target" so follow that lead. PR: 206384 (r302475) Obtained from: LLVM review D22543 (r303061) Approved by: re (gjb) --- contrib/llvm/projects/libunwind/include/__libunwind_config.h | 8 ++++++++ contrib/llvm/projects/libunwind/include/unwind.h | 2 +- 2 files changed, 9 insertions(+), 1 deletion(-) (limited to 'contrib/llvm/projects/libunwind/include') diff --git a/contrib/llvm/projects/libunwind/include/__libunwind_config.h b/contrib/llvm/projects/libunwind/include/__libunwind_config.h index 9b87bcb..fe3fbeb 100644 --- a/contrib/llvm/projects/libunwind/include/__libunwind_config.h +++ b/contrib/llvm/projects/libunwind/include/__libunwind_config.h @@ -22,30 +22,37 @@ # define _LIBUNWIND_TARGET_I386 1 # define _LIBUNWIND_CONTEXT_SIZE 8 # define _LIBUNWIND_CURSOR_SIZE 19 +# define _LIBUNWIND_MAX_REGISTER 9 # elif defined(__x86_64__) # define _LIBUNWIND_TARGET_X86_64 1 # define _LIBUNWIND_CONTEXT_SIZE 21 # define _LIBUNWIND_CURSOR_SIZE 33 +# define _LIBUNWIND_MAX_REGISTER 17 # elif defined(__ppc__) # define _LIBUNWIND_TARGET_PPC 1 # define _LIBUNWIND_CONTEXT_SIZE 117 # define _LIBUNWIND_CURSOR_SIZE 128 +# define _LIBUNWIND_MAX_REGISTER 113 # elif defined(__aarch64__) # define _LIBUNWIND_TARGET_AARCH64 1 # define _LIBUNWIND_CONTEXT_SIZE 66 # define _LIBUNWIND_CURSOR_SIZE 78 +# define _LIBUNWIND_MAX_REGISTER 96 # elif defined(__arm__) # define _LIBUNWIND_TARGET_ARM 1 # define _LIBUNWIND_CONTEXT_SIZE 60 # define _LIBUNWIND_CURSOR_SIZE 67 +# define _LIBUNWIND_MAX_REGISTER 96 # elif defined(__or1k__) # define _LIBUNWIND_TARGET_OR1K 1 # define _LIBUNWIND_CONTEXT_SIZE 16 # define _LIBUNWIND_CURSOR_SIZE 28 +# define _LIBUNWIND_MAX_REGISTER 32 # elif defined(__riscv__) # define _LIBUNWIND_TARGET_RISCV 1 # define _LIBUNWIND_CONTEXT_SIZE 128 /* XXX */ # define _LIBUNWIND_CURSOR_SIZE 140 /* XXX */ +# define _LIBUNWIND_MAX_REGISTER 96 # else # error "Unsupported architecture." # endif @@ -58,6 +65,7 @@ # define _LIBUNWIND_TARGET_OR1K 1 # define _LIBUNWIND_CONTEXT_SIZE 128 # define _LIBUNWIND_CURSOR_SIZE 140 +# define _LIBUNWIND_MAX_REGISTER 120 #endif // _LIBUNWIND_IS_NATIVE_ONLY #endif // ____LIBUNWIND_CONFIG_H__ diff --git a/contrib/llvm/projects/libunwind/include/unwind.h b/contrib/llvm/projects/libunwind/include/unwind.h index 94880bf..1fc3c5c 100644 --- a/contrib/llvm/projects/libunwind/include/unwind.h +++ b/contrib/llvm/projects/libunwind/include/unwind.h @@ -128,7 +128,7 @@ struct _Unwind_Exception { // added for binary compatibility. uint32_t reserved[3]; #endif -}; +} __attribute__((__aligned__)); typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn) (int version, -- cgit v1.1