From 790be1e40d4c27c4aa1c3160722673ac3e1bbaaf Mon Sep 17 00:00:00 2001 From: Zhi-Gang Liu Date: Tue, 2 Sep 2014 17:35:41 -0400 Subject: [PATCH] Add TileGx platform support to libunwind. "make check" passed. ====================================================== All 34 tests behaved as expected (2 expected failures) ====================================================== Zhi-Gang Liu @ Tilera --- Makefile.am | 6 + README | 2 +- configure.ac | 7 +- include/libunwind-tilegx.h | 161 ++++++++++++++++ include/libunwind.h.in | 2 + include/tdep-tilegx/dwarf-config.h | 50 +++++ include/tdep-tilegx/jmpbuf.h | 33 ++++ include/tdep-tilegx/libunwind_i.h | 265 +++++++++++++++++++++++++++ include/tdep/dwarf-config.h | 2 + include/tdep/jmpbuf.h | 2 + include/tdep/libunwind_i.h.in | 2 + src/Makefile.am | 33 ++++ src/coredump/_UCD_access_reg_linux.c | 3 + src/ptrace/_UPT_reg_offset.c | 58 ++++++ src/tilegx/Gcreate_addr_space.c | 65 +++++++ src/tilegx/Gget_proc_info.c | 48 +++++ src/tilegx/Gget_save_loc.c | 62 +++++++ src/tilegx/Gglobal.c | 64 +++++++ src/tilegx/Ginit.c | 167 +++++++++++++++++ src/tilegx/Ginit_local.c | 57 ++++++ src/tilegx/Ginit_remote.c | 47 +++++ src/tilegx/Gis_signal_frame.c | 115 ++++++++++++ src/tilegx/Gregs.c | 66 +++++++ src/tilegx/Gresume.c | 94 ++++++++++ src/tilegx/Gstep.c | 53 ++++++ src/tilegx/Lcreate_addr_space.c | 5 + src/tilegx/Lget_proc_info.c | 5 + src/tilegx/Lget_save_loc.c | 5 + src/tilegx/Lglobal.c | 5 + src/tilegx/Linit.c | 5 + src/tilegx/Linit_local.c | 5 + src/tilegx/Linit_remote.c | 5 + src/tilegx/Lis_signal_frame.c | 5 + src/tilegx/Lregs.c | 5 + src/tilegx/Lresume.c | 5 + src/tilegx/Lstep.c | 5 + src/tilegx/elfxx.c | 27 +++ src/tilegx/gen-offsets.c | 30 +++ src/tilegx/getcontext.S | 36 ++++ src/tilegx/init.h | 64 +++++++ src/tilegx/is_fpreg.c | 33 ++++ src/tilegx/offsets.h | 12 ++ src/tilegx/regname.c | 55 ++++++ src/tilegx/siglongjmp.S | 7 + src/tilegx/unwind_i.h | 44 +++++ tests/Gtest-resume-sig.c | 5 + tests/check-namespace.sh.in | 17 ++ tests/flush-cache.S | 14 ++ 48 files changed, 1860 insertions(+), 3 deletions(-) create mode 100644 include/libunwind-tilegx.h create mode 100644 include/tdep-tilegx/dwarf-config.h create mode 100644 include/tdep-tilegx/jmpbuf.h create mode 100644 include/tdep-tilegx/libunwind_i.h create mode 100644 src/tilegx/Gcreate_addr_space.c create mode 100644 src/tilegx/Gget_proc_info.c create mode 100644 src/tilegx/Gget_save_loc.c create mode 100644 src/tilegx/Gglobal.c create mode 100644 src/tilegx/Ginit.c create mode 100644 src/tilegx/Ginit_local.c create mode 100644 src/tilegx/Ginit_remote.c create mode 100644 src/tilegx/Gis_signal_frame.c create mode 100644 src/tilegx/Gregs.c create mode 100644 src/tilegx/Gresume.c create mode 100644 src/tilegx/Gstep.c create mode 100644 src/tilegx/Lcreate_addr_space.c create mode 100644 src/tilegx/Lget_proc_info.c create mode 100644 src/tilegx/Lget_save_loc.c create mode 100644 src/tilegx/Lglobal.c create mode 100644 src/tilegx/Linit.c create mode 100644 src/tilegx/Linit_local.c create mode 100644 src/tilegx/Linit_remote.c create mode 100644 src/tilegx/Lis_signal_frame.c create mode 100644 src/tilegx/Lregs.c create mode 100644 src/tilegx/Lresume.c create mode 100644 src/tilegx/Lstep.c create mode 100644 src/tilegx/elfxx.c create mode 100644 src/tilegx/gen-offsets.c create mode 100644 src/tilegx/getcontext.S create mode 100644 src/tilegx/init.h create mode 100644 src/tilegx/is_fpreg.c create mode 100644 src/tilegx/offsets.h create mode 100644 src/tilegx/regname.c create mode 100644 src/tilegx/siglongjmp.S create mode 100644 src/tilegx/unwind_i.h diff --git a/Makefile.am b/Makefile.am index e24fe1eb..98ae1ef2 100644 --- a/Makefile.am +++ b/Makefile.am @@ -17,6 +17,9 @@ endif if ARCH_MIPS include_HEADERS += include/libunwind-mips.h endif +if ARCH_TILEGX +include_HEADERS += include/libunwind-tilegx.h +endif if ARCH_X86 include_HEADERS += include/libunwind-x86.h endif @@ -55,6 +58,8 @@ noinst_HEADERS = include/dwarf.h include/dwarf_i.h include/dwarf-eh.h \ include/tdep-hppa/jmpbuf.h include/tdep-hppa/dwarf-config.h \ include/tdep-mips/libunwind_i.h \ include/tdep-mips/jmpbuf.h include/tdep-mips/dwarf-config.h \ + include/tdep-tilegx/libunwind_i.h \ + include/tdep-tilegx/jmpbuf.h include/tdep-tilegx/dwarf-config.h \ include/tdep-x86/libunwind_i.h \ include/tdep-x86/jmpbuf.h include/tdep-x86/dwarf-config.h \ include/tdep-x86_64/libunwind_i.h \ @@ -84,3 +89,4 @@ MAINTAINERCLEANFILES = \ config/missing \ include/config.h.in \ include/config.h.in~ + diff --git a/README b/README index 511fb0cd..798d7a8a 100644 --- a/README +++ b/README @@ -14,7 +14,7 @@ several architecture/operating-system combinations: Linux/SuperH: Newly added. FreeBSD/i386: Newly added. FreeBSD/x86-64: Newly added (FreeBSD architecture is known as amd64). - + Linux/Tilegx: Newly added (64-bit mode only). * General Build Instructions diff --git a/configure.ac b/configure.ac index a77cf01e..582e71fc 100644 --- a/configure.ac +++ b/configure.ac @@ -95,6 +95,7 @@ AC_DEFUN([SET_ARCH],[ [powerpc*],[$2=ppc$ppc_bits], [sh*],[$2=sh], [amd64],[$2=x86_64], + [tile*],[$2=tilegx], [$2=$1]) ]) dnl SET_ARCH @@ -104,7 +105,7 @@ SET_ARCH([$target_cpu],[target_arch]) AC_ARG_ENABLE(coredump, AS_HELP_STRING([--enable-coredump],[building libunwind-coredump library]),, - [AS_CASE([$host_arch], [aarch64*|arm*|mips*|sh*|x86*], [enable_coredump=yes], [enable_coredump=no])] + [AS_CASE([$host_arch], [aarch64*|arm*|mips*|sh*|x86*|tile*], [enable_coredump=yes], [enable_coredump=no])] ) AC_MSG_CHECKING([if we should build libunwind-coredump]) @@ -149,6 +150,7 @@ AM_CONDITIONAL(ARCH_X86_64, test x$target_arch = xx86_64) AM_CONDITIONAL(ARCH_PPC32, test x$target_arch = xppc32) AM_CONDITIONAL(ARCH_PPC64, test x$target_arch = xppc64) AM_CONDITIONAL(ARCH_SH, test x$target_arch = xsh) +AM_CONDITIONAL(ARCH_TILEGX, test x$target_arch = xtilegx) AM_CONDITIONAL(OS_LINUX, expr x$target_os : xlinux >/dev/null) AM_CONDITIONAL(OS_HPUX, expr x$target_os : xhpux >/dev/null) AM_CONDITIONAL(OS_FREEBSD, expr x$target_os : xfreebsd >/dev/null) @@ -157,7 +159,7 @@ AM_CONDITIONAL(OS_QNX, expr x$target_os : xnto-qnx >/dev/null) AC_MSG_CHECKING([for ELF helper width]) case "${target_arch}" in (arm|hppa|ppc32|x86|sh) use_elf32=yes; AC_MSG_RESULT([32]);; -(aarch64|ia64|ppc64|x86_64) use_elf64=yes; AC_MSG_RESULT([64]);; +(aarch64|ia64|ppc64|x86_64|tilegx) use_elf64=yes; AC_MSG_RESULT([64]);; (mips) use_elfxx=yes; AC_MSG_RESULT([xx]);; *) AC_MSG_ERROR([Unknown ELF target: ${target_arch}]) esac @@ -209,6 +211,7 @@ case $target_arch in aarch64*) enable_cxx_exceptions=no;; arm*) enable_cxx_exceptions=no;; mips*) enable_cxx_exceptions=no;; + tile*) enable_cxx_exceptions=no;; *) enable_cxx_exceptions=yes;; esac ]) diff --git a/include/libunwind-tilegx.h b/include/libunwind-tilegx.h new file mode 100644 index 00000000..0f84ea65 --- /dev/null +++ b/include/libunwind-tilegx.h @@ -0,0 +1,161 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef LIBUNWIND_H +#define LIBUNWIND_H + +#if defined(__cplusplus) || defined(c_plusplus) +extern "C" { +#endif + +#include +#include + +#define UNW_TARGET tilegx +#define UNW_TARGET_TILEGX 1 + +#define _U_TDEP_QP_TRUE 0 /* see libunwind-dynamic.h */ + +/* This needs to be big enough to accommodate "struct cursor", while + leaving some slack for future expansion. Changing this value will + require recompiling all users of this library. Stack allocation is + relatively cheap and unwind-state copying is relatively rare, so we + want to err on making it rather too big than too small. */ + +#define UNW_TDEP_CURSOR_LEN 4096 + +/* The size of a "word" varies on TILEGX. This type is used for memory + addresses and register values. */ +typedef uint64_t unw_word_t; +typedef int64_t unw_sword_t; + +typedef long double unw_tdep_fpreg_t; + +typedef enum +{ + UNW_TILEGX_R0, + UNW_TILEGX_R1, + UNW_TILEGX_R2, + UNW_TILEGX_R3, + UNW_TILEGX_R4, + UNW_TILEGX_R5, + UNW_TILEGX_R6, + UNW_TILEGX_R7, + UNW_TILEGX_R8, + UNW_TILEGX_R9, + UNW_TILEGX_R10, + UNW_TILEGX_R11, + UNW_TILEGX_R12, + UNW_TILEGX_R13, + UNW_TILEGX_R14, + UNW_TILEGX_R15, + UNW_TILEGX_R16, + UNW_TILEGX_R17, + UNW_TILEGX_R18, + UNW_TILEGX_R19, + UNW_TILEGX_R20, + UNW_TILEGX_R21, + UNW_TILEGX_R22, + UNW_TILEGX_R23, + UNW_TILEGX_R24, + UNW_TILEGX_R25, + UNW_TILEGX_R26, + UNW_TILEGX_R27, + UNW_TILEGX_R28, + UNW_TILEGX_R29, + UNW_TILEGX_R30, + UNW_TILEGX_R31, + UNW_TILEGX_R32, + UNW_TILEGX_R33, + UNW_TILEGX_R34, + UNW_TILEGX_R35, + UNW_TILEGX_R36, + UNW_TILEGX_R37, + UNW_TILEGX_R38, + UNW_TILEGX_R39, + UNW_TILEGX_R40, + UNW_TILEGX_R41, + UNW_TILEGX_R42, + UNW_TILEGX_R43, + UNW_TILEGX_R44, + UNW_TILEGX_R45, + UNW_TILEGX_R46, + UNW_TILEGX_R47, + UNW_TILEGX_R48, + UNW_TILEGX_R49, + UNW_TILEGX_R50, + UNW_TILEGX_R51, + UNW_TILEGX_R52, + UNW_TILEGX_R53, + UNW_TILEGX_R54, + UNW_TILEGX_R55, + + /* FIXME: Other registers! */ + + UNW_TILEGX_PC, + /* For TILEGX, the CFA is the value of SP (r54) at the call site in the + previous frame. */ + UNW_TILEGX_CFA, + + UNW_TDEP_LAST_REG = UNW_TILEGX_PC, + + UNW_TDEP_IP = UNW_TILEGX_R55, /* R55 is link register for Tilegx */ + UNW_TDEP_SP = UNW_TILEGX_R54, + UNW_TDEP_EH = UNW_TILEGX_R0 /* FIXME. */ +} tilegx_regnum_t; + +typedef enum +{ + UNW_TILEGX_ABI_N64 = 2 +} tilegx_abi_t; + +#define UNW_TDEP_NUM_EH_REGS 2 /* FIXME for TILEGX. */ + +typedef struct unw_tdep_save_loc +{ + /* Additional target-dependent info on a save location. */ +} unw_tdep_save_loc_t; + +typedef ucontext_t unw_tdep_context_t; + +#include "libunwind-dynamic.h" + +typedef struct +{ + /* no tilegx-specific auxiliary proc-info */ +} unw_tdep_proc_info_t; + +#include "libunwind-common.h" + +#define unw_tdep_getcontext getcontext + +#define unw_tdep_is_fpreg UNW_ARCH_OBJ(is_fpreg) +extern int unw_tdep_is_fpreg (int); + +#if defined(__cplusplus) || defined(c_plusplus) +} +#endif + +#endif /* LIBUNWIND_H */ diff --git a/include/libunwind.h.in b/include/libunwind.h.in index 64b1457b..7a56168c 100644 --- a/include/libunwind.h.in +++ b/include/libunwind.h.in @@ -23,6 +23,8 @@ # include "libunwind-x86.h" #elif defined __x86_64__ # include "libunwind-x86_64.h" +#elif defined __tilegx__ +# include "libunwind-tilegx.h" #else # error "Unsupported arch" #endif diff --git a/include/tdep-tilegx/dwarf-config.h b/include/tdep-tilegx/dwarf-config.h new file mode 100644 index 00000000..93bc6aae --- /dev/null +++ b/include/tdep-tilegx/dwarf-config.h @@ -0,0 +1,50 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef dwarf_config_h +#define dwarf_config_h + +/* This is FIRST_PSEUDO_REGISTER in GCC, since DWARF_FRAME_REGISTERS is not + explicitly defined. */ +#define DWARF_NUM_PRESERVED_REGS 188 + +#define DWARF_REGNUM_MAP_LENGTH (56 + 2) + +/* Return TRUE if the ADDR_SPACE uses big-endian byte-order. */ +#define dwarf_is_big_endian(addr_space) ((addr_space)->big_endian) + +/* Convert a pointer to a dwarf_cursor structure to a pointer to + unw_cursor_t. */ +#define dwarf_to_cursor(c) ((unw_cursor_t *) (c)) + +typedef struct dwarf_loc +{ + unw_word_t val; +#ifndef UNW_LOCAL_ONLY + unw_word_t type; /* see DWARF_LOC_TYPE_* macros. */ +#endif +} dwarf_loc_t; + +#endif /* dwarf_config_h */ diff --git a/include/tdep-tilegx/jmpbuf.h b/include/tdep-tilegx/jmpbuf.h new file mode 100644 index 00000000..3afe9e46 --- /dev/null +++ b/include/tdep-tilegx/jmpbuf.h @@ -0,0 +1,33 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +/* Use glibc's jump-buffer indices; NPTL peeks at SP: */ + +/* FIXME for Tilegx! */ + +#define JB_SP 4 +#define JB_RP 5 +#define JB_MASK_SAVED 6 +#define JB_MASK 7 diff --git a/include/tdep-tilegx/libunwind_i.h b/include/tdep-tilegx/libunwind_i.h new file mode 100644 index 00000000..9a4ec6a5 --- /dev/null +++ b/include/tdep-tilegx/libunwind_i.h @@ -0,0 +1,265 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef TILEGX_LIBUNWIND_I_H +#define TILEGX_LIBUNWIND_I_H + +/* Target-dependent definitions that are internal to libunwind but need + to be shared with target-independent code. */ + +#include +#include + +# include "elf64.h" +#include "mempool.h" +#include "dwarf.h" + +#ifdef HAVE___THREAD +# undef HAVE___THREAD +#endif + +typedef struct +{ + /* no Tilegx-specific fast trace */ +} unw_tdep_frame_t; + +struct unw_addr_space +{ + struct unw_accessors acc; + + int big_endian; + tilegx_abi_t abi; + unsigned int addr_size; + + unw_caching_policy_t caching_policy; +#ifdef HAVE_ATOMIC_OPS_H + AO_t cache_generation; +#else + uint32_t cache_generation; +#endif + unw_word_t dyn_generation; /* see dyn-common.h */ + unw_word_t dyn_info_list_addr; /* (cached) dyn_info_list_addr */ + struct dwarf_rs_cache global_cache; + struct unw_debug_frame_list *debug_frames; +}; + +#define tdep_big_endian(as) ((as)->big_endian) + +struct cursor +{ + struct dwarf_cursor dwarf; /* must be first */ + unw_word_t sigcontext_addr; + unw_word_t sigcontext_sp; + unw_word_t sigcontext_pc; +}; + +#define DWARF_GET_LOC(l) ((l).val) + +#ifndef UNW_REMOTE_ONLY +typedef long tilegx_reg_t; +#endif + +#ifdef UNW_LOCAL_ONLY +#define DWARF_NULL_LOC DWARF_LOC (0, 0) +#define DWARF_IS_NULL_LOC(l) (DWARF_GET_LOC (l) == 0) +#define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r) }) +#define DWARF_IS_REG_LOC(l) 0 +#define DWARF_REG_LOC(c,r) (DWARF_LOC((unw_word_t) (intptr_t) \ + tdep_uc_addr((c)->as_arg, (r)), 0)) +#define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) +#define DWARF_FPREG_LOC(c,r) (DWARF_LOC((unw_word_t) (intptr_t) \ + tdep_uc_addr((c)->as_arg, (r)), 0)) + +/* Tilegx has no FP. */ +static inline int +dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) +{ + Debug (1, "Tielgx has no fp!\n"); + abort(); + return 0; +} + +static inline int +dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) +{ + Debug (1, "Tielgx has no fp!\n"); + abort(); + return 0; +} + +static inline int +dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) +{ + if (!DWARF_GET_LOC (loc)) + return -1; + + *val = *(tilegx_reg_t *) (intptr_t) DWARF_GET_LOC (loc); + return 0; +} + +static inline int +dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) +{ + if (!DWARF_GET_LOC (loc)) + return -1; + + *(tilegx_reg_t *) (intptr_t) DWARF_GET_LOC (loc) = val; + return 0; +} + +#else /* !UNW_LOCAL_ONLY */ +#define DWARF_LOC_TYPE_FP (1 << 0) +#define DWARF_LOC_TYPE_REG (1 << 1) +#define DWARF_NULL_LOC DWARF_LOC (0, 0) +#define DWARF_IS_NULL_LOC(l) \ + ({ dwarf_loc_t _l = (l); _l.val == 0 && _l.type == 0; }) +#define DWARF_LOC(r, t) ((dwarf_loc_t) { .val = (r), .type = (t) }) +#define DWARF_IS_REG_LOC(l) (((l).type & DWARF_LOC_TYPE_REG) != 0) +#define DWARF_IS_FP_LOC(l) (((l).type & DWARF_LOC_TYPE_FP) != 0) +#define DWARF_REG_LOC(c,r) DWARF_LOC((r), DWARF_LOC_TYPE_REG) +#define DWARF_MEM_LOC(c,m) DWARF_LOC ((m), 0) +#define DWARF_FPREG_LOC(c,r) DWARF_LOC((r), (DWARF_LOC_TYPE_REG \ + | DWARF_LOC_TYPE_FP)) + +/* TILEGX has no fp. */ +static inline int +dwarf_getfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t *val) +{ + Debug (1, "Tielgx has no fp!\n"); + abort(); + return 0; +} + +static inline int +dwarf_putfp (struct dwarf_cursor *c, dwarf_loc_t loc, unw_fpreg_t val) +{ + Debug (1, "Tielgx has no fp!\n"); + abort(); + return 0; +} + +static inline int +dwarf_get (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t *val) +{ + if (DWARF_IS_NULL_LOC (loc)) + return -UNW_EBADREG; + + /* If a code-generator were to save a value of type unw_word_t in a + floating-point register, we would have to support this case. I + suppose it could happen with MMX registers, but does it really + happen? */ + assert (!DWARF_IS_FP_LOC (loc)); + + if (DWARF_IS_REG_LOC (loc)) + return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), val, + 0, c->as_arg); + + return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), val, + 0, c->as_arg); +} + +static inline int +dwarf_put (struct dwarf_cursor *c, dwarf_loc_t loc, unw_word_t val) +{ + if (DWARF_IS_NULL_LOC (loc)) + return -UNW_EBADREG; + + /* If a code-generator were to save a value of type unw_word_t in a + floating-point register, we would have to support this case. I + suppose it could happen with MMX registers, but does it really + happen? */ + assert (!DWARF_IS_FP_LOC (loc)); + + if (DWARF_IS_REG_LOC (loc)) + return (*c->as->acc.access_reg) (c->as, DWARF_GET_LOC (loc), &val, + 1, c->as_arg); + + return (*c->as->acc.access_mem) (c->as, DWARF_GET_LOC (loc), &val, + 1, c->as_arg); +} + +#endif /* !UNW_LOCAL_ONLY */ + +#define tdep_getcontext_trace unw_getcontext +#define tdep_init_done UNW_OBJ(init_done) +#define tdep_needs_initialization UNW_OBJ(needs_initialization) +#define tdep_init UNW_OBJ(init) +/* Platforms that support UNW_INFO_FORMAT_TABLE need to define + tdep_search_unwind_table. */ +#define tdep_search_unwind_table dwarf_search_unwind_table +#define tdep_find_unwind_table dwarf_find_unwind_table +#define tdep_uc_addr UNW_ARCH_OBJ(uc_addr) +#define tdep_get_elf_image UNW_ARCH_OBJ(get_elf_image) +#define tdep_access_reg UNW_OBJ(access_reg) +#define tdep_access_fpreg UNW_OBJ(access_fpreg) +#define tdep_fetch_frame(c,ip,n) do {} while(0) +#define tdep_cache_frame(c,rs) do {} while(0) +#define tdep_reuse_frame(c,rs) do {} while(0) +#define tdep_stash_frame(c,rs) do {} while(0) +#define tdep_trace(cur,addr,n) (-UNW_ENOINFO) + +#ifdef UNW_LOCAL_ONLY +#define tdep_find_proc_info(c,ip,n) \ + dwarf_find_proc_info((c)->as, (ip), &(c)->pi, (n), \ + (c)->as_arg) +#define tdep_put_unwind_info(as,pi,arg) \ + dwarf_put_unwind_info((as), (pi), (arg)) +#else +#define tdep_find_proc_info(c,ip,n) \ + (*(c)->as->acc.find_proc_info)((c)->as, (ip), &(c)->pi, (n), \ + (c)->as_arg) +#define tdep_put_unwind_info(as,pi,arg) \ + (*(as)->acc.put_unwind_info)((as), (pi), (arg)) +#endif + +#define tdep_get_as(c) ((c)->dwarf.as) +#define tdep_get_as_arg(c) ((c)->dwarf.as_arg) +#define tdep_get_ip(c) ((c)->dwarf.ip) + +extern int tdep_init_done; + +extern void tdep_init (void); +extern int tdep_search_unwind_table (unw_addr_space_t as, + unw_word_t ip, + unw_dyn_info_t *di, + unw_proc_info_t *pi, + int need_unwind_info, + void *arg); +extern void *tdep_uc_addr (ucontext_t *uc, int reg); +extern int tdep_get_elf_image (struct elf_image *ei, + pid_t pid, unw_word_t ip, + unsigned long *segbase, + unsigned long *mapoff, + char *path, size_t pathlen); +extern int tdep_access_reg (struct cursor *c, + unw_regnum_t reg, + unw_word_t *valp, + int write); +extern int tdep_access_fpreg (struct cursor *c, + unw_regnum_t reg, + unw_fpreg_t *valp, + int write); + +#endif /* TILEGX_LIBUNWIND_I_H */ diff --git a/include/tdep/dwarf-config.h b/include/tdep/dwarf-config.h index 5b09fc18..c759a46c 100644 --- a/include/tdep/dwarf-config.h +++ b/include/tdep/dwarf-config.h @@ -21,6 +21,8 @@ # include "tdep-x86/dwarf-config.h" #elif defined __x86_64__ || defined __amd64__ # include "tdep-x86_64/dwarf-config.h" +#elif defined __tilegx__ +# include "tdep-tilegx/dwarf-config.h" #else # error "Unsupported arch" #endif diff --git a/include/tdep/jmpbuf.h b/include/tdep/jmpbuf.h index 684d0d95..4eae183e 100644 --- a/include/tdep/jmpbuf.h +++ b/include/tdep/jmpbuf.h @@ -21,6 +21,8 @@ # include "tdep-x86/jmpbuf.h" #elif defined __x86_64__ # include "tdep-x86_64/jmpbuf.h" +#elif defined __tilegx__ +# include "tdep-tilegx/jmpbuf.h" #else # error "Unsupported arch" #endif diff --git a/include/tdep/libunwind_i.h.in b/include/tdep/libunwind_i.h.in index 475f8288..af05a7fb 100644 --- a/include/tdep/libunwind_i.h.in +++ b/include/tdep/libunwind_i.h.in @@ -23,6 +23,8 @@ # include "tdep-x86/libunwind_i.h" #elif defined __x86_64__ # include "tdep-x86_64/libunwind_i.h" +#elif defined __tilegx__ +# include "tdep-tilegx/libunwind_i.h" #else # error "Unsupported arch" #endif diff --git a/src/Makefile.am b/src/Makefile.am index efa976b2..a8f7e231 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -297,6 +297,26 @@ libunwind_mips_la_SOURCES_mips = $(libunwind_la_SOURCES_mips_common) \ mips/Gglobal.c mips/Ginit.c mips/Ginit_local.c mips/Ginit_remote.c \ mips/Gis_signal_frame.c mips/Gregs.c mips/Gresume.c mips/Gstep.c +# The list of files that go info libunwind and libunwind-tilegx: +noinst_HEADERS += tilegx/init.h tilegx/offsets.h +libunwind_la_SOURCES_tilegx_common = $(libunwind_la_SOURCES_common) \ + tilegx/is_fpreg.c tilegx/regname.c + +# The list of files that go into libunwind: +libunwind_la_SOURCES_tilegx = $(libunwind_la_SOURCES_tilegx_common) \ + $(libunwind_la_SOURCES_local) \ + tilegx/getcontext.S \ + tilegx/Lcreate_addr_space.c tilegx/Lget_proc_info.c tilegx/Lget_save_loc.c \ + tilegx/Lglobal.c tilegx/Linit.c tilegx/Linit_local.c tilegx/Linit_remote.c \ + tilegx/Lis_signal_frame.c tilegx/Lregs.c tilegx/Lresume.c tilegx/Lstep.c + +libunwind_tilegx_la_SOURCES_tilegx = $(libunwind_la_SOURCES_tilegx_common) \ + $(libunwind_la_SOURCES_generic) \ + tilegx/Gcreate_addr_space.c tilegx/Gget_proc_info.c tilegx/Gget_save_loc.c \ + tilegx/Gglobal.c tilegx/Ginit.c tilegx/Ginit_local.c tilegx/Ginit_remote.c \ + tilegx/Gis_signal_frame.c tilegx/Gregs.c tilegx/Gresume.c tilegx/Gstep.c + + # The list of files that go both into libunwind and libunwind-x86: noinst_HEADERS += x86/init.h x86/offsets.h x86/unwind_i.h libunwind_la_SOURCES_x86_common = $(libunwind_la_SOURCES_common) \ @@ -535,6 +555,18 @@ if !REMOTE_ONLY endif libunwind_setjmp_la_SOURCES += mips/siglongjmp.S else +if ARCH_TILEGX + lib_LTLIBRARIES += libunwind-tilegx.la + libunwind_la_SOURCES = $(libunwind_la_SOURCES_tilegx) + libunwind_tilegx_la_SOURCES = $(libunwind_tilegx_la_SOURCES_tilegx) + libunwind_tilegx_la_LDFLAGS = $(COMMON_SO_LDFLAGS) -version-info $(SOVERSION) + libunwind_tilegx_la_LIBADD = libunwind-dwarf-generic.la + libunwind_tilegx_la_LIBADD += libunwind-elfxx.la +if !REMOTE_ONLY + libunwind_tilegx_la_LIBADD += libunwind.la -lc +endif + libunwind_setjmp_la_SOURCES += tilegx/siglongjmp.S +else if ARCH_X86 lib_LTLIBRARIES += libunwind-x86.la libunwind_la_SOURCES = $(libunwind_la_SOURCES_x86) $(libunwind_x86_la_SOURCES_os) @@ -600,6 +632,7 @@ endif # ARCH_PPC64 endif # ARCH_PPC32 endif # ARCH_X86_64 endif # ARCH_X86 +endif # ARCH_TILEGX endif # ARCH_MIPS endif # ARCH_HPPA endif # ARCH_IA64 diff --git a/src/coredump/_UCD_access_reg_linux.c b/src/coredump/_UCD_access_reg_linux.c index 9dc0904f..4c1daef4 100644 --- a/src/coredump/_UCD_access_reg_linux.c +++ b/src/coredump/_UCD_access_reg_linux.c @@ -48,6 +48,9 @@ _UCD_access_reg (unw_addr_space_t as, #elif defined(UNW_TARGET_SH) if (regnum < 0 || regnum > UNW_SH_PR) goto badreg; +#elif defined(UNW_TARGET_TILEGX) + if (regnum < 0 || regnum > UNW_TILEGX_CFA) + goto badreg; #else #if defined(UNW_TARGET_MIPS) static const uint8_t remap_regs[] = diff --git a/src/ptrace/_UPT_reg_offset.c b/src/ptrace/_UPT_reg_offset.c index ced4896f..88fcb9ca 100644 --- a/src/ptrace/_UPT_reg_offset.c +++ b/src/ptrace/_UPT_reg_offset.c @@ -537,6 +537,64 @@ const int _UPT_reg_offset[UNW_REG_LAST + 1] = [UNW_AARCH64_SP] = 0xf8, [UNW_AARCH64_PC] = 0x100, [UNW_AARCH64_PSTATE] = 0x108 +#elif defined(UNW_TARGET_TILEGX) + [UNW_TILEGX_R0] = 0x00, + [UNW_TILEGX_R1] = 0x08, + [UNW_TILEGX_R2] = 0x10, + [UNW_TILEGX_R3] = 0x08, + [UNW_TILEGX_R4] = 0x20, + [UNW_TILEGX_R5] = 0x28, + [UNW_TILEGX_R6] = 0x30, + [UNW_TILEGX_R7] = 0x38, + [UNW_TILEGX_R8] = 0x40, + [UNW_TILEGX_R9] = 0x48, + [UNW_TILEGX_R10] = 0x50, + [UNW_TILEGX_R11] = 0x58, + [UNW_TILEGX_R12] = 0x60, + [UNW_TILEGX_R13] = 0x68, + [UNW_TILEGX_R14] = 0x70, + [UNW_TILEGX_R15] = 0x78, + [UNW_TILEGX_R16] = 0x80, + [UNW_TILEGX_R17] = 0x88, + [UNW_TILEGX_R18] = 0x90, + [UNW_TILEGX_R19] = 0x98, + [UNW_TILEGX_R20] = 0xa0, + [UNW_TILEGX_R21] = 0xa8, + [UNW_TILEGX_R22] = 0xb0, + [UNW_TILEGX_R23] = 0xb8, + [UNW_TILEGX_R24] = 0xc0, + [UNW_TILEGX_R25] = 0xc8, + [UNW_TILEGX_R26] = 0xd0, + [UNW_TILEGX_R27] = 0xd8, + [UNW_TILEGX_R28] = 0xe0, + [UNW_TILEGX_R29] = 0xe8, + [UNW_TILEGX_R30] = 0xf0, + [UNW_TILEGX_R31] = 0xf8, + [UNW_TILEGX_R32] = 0x100, + [UNW_TILEGX_R33] = 0x108, + [UNW_TILEGX_R34] = 0x110, + [UNW_TILEGX_R35] = 0x118, + [UNW_TILEGX_R36] = 0x120, + [UNW_TILEGX_R37] = 0x128, + [UNW_TILEGX_R38] = 0x130, + [UNW_TILEGX_R39] = 0x138, + [UNW_TILEGX_R40] = 0x140, + [UNW_TILEGX_R41] = 0x148, + [UNW_TILEGX_R42] = 0x150, + [UNW_TILEGX_R43] = 0x158, + [UNW_TILEGX_R44] = 0x160, + [UNW_TILEGX_R45] = 0x168, + [UNW_TILEGX_R46] = 0x170, + [UNW_TILEGX_R47] = 0x178, + [UNW_TILEGX_R48] = 0x180, + [UNW_TILEGX_R49] = 0x188, + [UNW_TILEGX_R50] = 0x190, + [UNW_TILEGX_R51] = 0x198, + [UNW_TILEGX_R52] = 0x1a0, + [UNW_TILEGX_R53] = 0x1a8, + [UNW_TILEGX_R54] = 0x1b0, + [UNW_TILEGX_R55] = 0x1b8, + [UNW_TILEGX_PC] = 0x1a0 #else # error Fix me. #endif diff --git a/src/tilegx/Gcreate_addr_space.c b/src/tilegx/Gcreate_addr_space.c new file mode 100644 index 00000000..a2821a3d --- /dev/null +++ b/src/tilegx/Gcreate_addr_space.c @@ -0,0 +1,65 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include + +#include "unwind_i.h" + +PROTECTED unw_addr_space_t +unw_create_addr_space (unw_accessors_t *a, int byte_order) +{ +#ifdef UNW_LOCAL_ONLY + return NULL; +#else + unw_addr_space_t as = malloc (sizeof (*as)); + + if (!as) + return NULL; + + memset (as, 0, sizeof (*as)); + + as->acc = *a; + + /* + * Tilegx supports only big or little-endian, not weird stuff like + * PDP_ENDIAN. + */ + if (byte_order != 0 + && byte_order != __LITTLE_ENDIAN + && byte_order != __BIG_ENDIAN) + return NULL; + + if (byte_order == 0) + /* use host default: */ + as->big_endian = (__BYTE_ORDER == __BIG_ENDIAN); + else + as->big_endian = (byte_order == __BIG_ENDIAN); + + as->abi = UNW_TILEGX_ABI_N64; + as->addr_size = 8; + + return as; +#endif +} diff --git a/src/tilegx/Gget_proc_info.c b/src/tilegx/Gget_proc_info.c new file mode 100644 index 00000000..f82700dd --- /dev/null +++ b/src/tilegx/Gget_proc_info.c @@ -0,0 +1,48 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" + +PROTECTED int +unw_get_proc_info (unw_cursor_t *cursor, unw_proc_info_t *pi) +{ + struct cursor *c = (struct cursor *) cursor; + int ret; + + ret = dwarf_make_proc_info (&c->dwarf); + + if (ret < 0) + { + /* On Tilegx, some routines i.e. _start() etc has no dwarf info. + Just simply mark the end of the frames. */ + memset (pi, 0, sizeof (*pi)); + pi->start_ip = c->dwarf.ip; + pi->end_ip = c->dwarf.ip + 1; + return 0; + } + + *pi = c->dwarf.pi; + return 0; +} diff --git a/src/tilegx/Gget_save_loc.c b/src/tilegx/Gget_save_loc.c new file mode 100644 index 00000000..ec474e18 --- /dev/null +++ b/src/tilegx/Gget_save_loc.c @@ -0,0 +1,62 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" + +PROTECTED int +unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc) +{ + struct cursor *c = (struct cursor *) cursor; + dwarf_loc_t loc; + + loc = DWARF_NULL_LOC; /* default to "not saved" */ + + if (reg <= UNW_TILEGX_R55) + loc = c->dwarf.loc[reg - UNW_TILEGX_R0]; + else + printf("\nInvalid register!"); + + memset (sloc, 0, sizeof (*sloc)); + + if (DWARF_IS_NULL_LOC (loc)) + { + sloc->type = UNW_SLT_NONE; + return 0; + } + +#if !defined(UNW_LOCAL_ONLY) + if (DWARF_IS_REG_LOC (loc)) + { + sloc->type = UNW_SLT_REG; + sloc->u.regnum = DWARF_GET_LOC (loc); + } + else +#endif + { + sloc->type = UNW_SLT_MEMORY; + sloc->u.addr = DWARF_GET_LOC (loc); + } + return 0; +} diff --git a/src/tilegx/Gglobal.c b/src/tilegx/Gglobal.c new file mode 100644 index 00000000..e18f50a5 --- /dev/null +++ b/src/tilegx/Gglobal.c @@ -0,0 +1,64 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" +#include "dwarf_i.h" + +__attribute__((weak)) +pthread_mutex_t tilegx_lock = PTHREAD_MUTEX_INITIALIZER; +HIDDEN int tdep_init_done; + +HIDDEN const uint8_t dwarf_to_unw_regnum_map[] = + { + 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55 + }; + +HIDDEN void +tdep_init (void) +{ + intrmask_t saved_mask; + + sigfillset (&unwi_full_mask); + + lock_acquire (&tilegx_lock, saved_mask); + + if (tdep_init_done) + /* another thread else beat us to it... */ + goto out; + + mi_init (); + dwarf_init (); + +#ifndef UNW_REMOTE_ONLY + tilegx_local_addr_space_init (); +#endif + tdep_init_done = 1; /* signal that we're initialized... */ + + out: + lock_release (&tilegx_lock, saved_mask); +} diff --git a/src/tilegx/Ginit.c b/src/tilegx/Ginit.c new file mode 100644 index 00000000..df3ffcaa --- /dev/null +++ b/src/tilegx/Ginit.c @@ -0,0 +1,167 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include +#include + +#include "unwind_i.h" + +#ifdef UNW_REMOTE_ONLY + +/* unw_local_addr_space is a NULL pointer in this case. */ +PROTECTED unw_addr_space_t unw_local_addr_space; + +#else /* !UNW_REMOTE_ONLY */ + +static struct unw_addr_space local_addr_space; + +PROTECTED unw_addr_space_t unw_local_addr_space = &local_addr_space; + +/* Return the address of the 64-bit slot in UC for REG (even for o32, + where registers are 32-bit, the slots are still 64-bit). */ + +static inline void * +uc_addr (ucontext_t *uc, int reg) +{ + if (reg >= UNW_TILEGX_R0 && reg < UNW_TILEGX_R0 + 56) + return &uc->uc_mcontext.gregs[reg - UNW_TILEGX_R0]; + else if (reg == UNW_TILEGX_PC) + return &uc->uc_mcontext.pc; + else + return NULL; +} + +# ifdef UNW_LOCAL_ONLY + +HIDDEN void * +tdep_uc_addr (ucontext_t *uc, int reg) +{ + char *addr = uc_addr (uc, reg); + return addr; +} + +# endif /* UNW_LOCAL_ONLY */ + +HIDDEN unw_dyn_info_list_t _U_dyn_info_list; + +/* XXX fix me: there is currently no way to locate the dyn-info list + by a remote unwinder. On ia64, this is done via a special + unwind-table entry. Perhaps something similar can be done with + DWARF2 unwind info. */ + +static void +put_unwind_info (unw_addr_space_t as, unw_proc_info_t *proc_info, void *arg) +{ + /* it's a no-op */ +} + +static int +get_dyn_info_list_addr (unw_addr_space_t as, unw_word_t *dyn_info_list_addr, + void *arg) +{ + *dyn_info_list_addr = (unw_word_t) (intptr_t) &_U_dyn_info_list; + return 0; +} + +static int +access_mem (unw_addr_space_t as, unw_word_t addr, unw_word_t *val, int write, + void *arg) +{ + if ((long long)addr & (sizeof(unw_word_t) - 1)) + return 0; + + if (write) + { + Debug (16, "mem[%llx] <- %llx\n", (long long) addr, (long long) *val); + *(unw_word_t *) (intptr_t) addr = *val; + } + else + { + *val = *(unw_word_t *) (intptr_t) addr; + Debug (16, "mem[%llx] -> %llx\n", (long long) addr, (long long) *val); + } + return 0; +} + +static int +access_reg (unw_addr_space_t as, unw_regnum_t reg, unw_word_t *val, int write, + void *arg) +{ + unw_word_t *addr; + ucontext_t *uc = arg; + + if (unw_is_fpreg (reg)) + goto badreg; + + Debug (16, "reg = %s\n", unw_regname (reg)); + if (!(addr = uc_addr (uc, reg))) + goto badreg; + + if (write) + { + *(unw_word_t *) (intptr_t) addr = (tilegx_reg_t) *val; + Debug (12, "%s <- %llx\n", unw_regname (reg), (long long) *val); + } + else + { + *val = (tilegx_reg_t) *(unw_word_t *) (intptr_t) addr; + Debug (12, "%s -> %llx\n", unw_regname (reg), (long long) *val); + } + return 0; + + badreg: + Debug (1, "bad register number %u\n", reg); + return -UNW_EBADREG; +} + +static int +get_static_proc_name (unw_addr_space_t as, unw_word_t ip, + char *buf, size_t buf_len, unw_word_t *offp, + void *arg) +{ + return elf_w (get_proc_name) (as, getpid (), ip, buf, buf_len, offp); +} + +__attribute__((weak)) void +tilegx_local_addr_space_init (void) +{ + memset (&local_addr_space, 0, sizeof (local_addr_space)); + local_addr_space.big_endian = (__BYTE_ORDER == __BIG_ENDIAN); + + local_addr_space.abi = UNW_TILEGX_ABI_N64; + local_addr_space.addr_size = sizeof (void *); + local_addr_space.caching_policy = UNW_CACHE_GLOBAL; + local_addr_space.acc.find_proc_info = dwarf_find_proc_info; + local_addr_space.acc.put_unwind_info = put_unwind_info; + local_addr_space.acc.get_dyn_info_list_addr = get_dyn_info_list_addr; + local_addr_space.acc.access_mem = access_mem; + local_addr_space.acc.access_reg = access_reg; + local_addr_space.acc.access_fpreg = NULL; + local_addr_space.acc.resume = tilegx_local_resume; + local_addr_space.acc.get_proc_name = get_static_proc_name; + unw_flush_cache (&local_addr_space, 0, 0); +} + +#endif /* !UNW_REMOTE_ONLY */ diff --git a/src/tilegx/Ginit_local.c b/src/tilegx/Ginit_local.c new file mode 100644 index 00000000..f75c98f4 --- /dev/null +++ b/src/tilegx/Ginit_local.c @@ -0,0 +1,57 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" +#include "init.h" + +#ifdef UNW_REMOTE_ONLY + +PROTECTED int +unw_init_local (unw_cursor_t *cursor, ucontext_t *uc) +{ + return -UNW_EINVAL; +} + +#else /* !UNW_REMOTE_ONLY */ + +PROTECTED int +unw_init_local (unw_cursor_t *cursor, ucontext_t *uc) +{ + struct cursor *c = (struct cursor *) cursor; + + if (!tdep_init_done) + tdep_init (); + + memset(c, 0, sizeof(unw_cursor_t)); + + Debug (1, "(cursor=%p)\n", c); + + c->dwarf.as = unw_local_addr_space; + + c->dwarf.as_arg = uc; + return common_init (c, 1); +} + +#endif /* !UNW_REMOTE_ONLY */ diff --git a/src/tilegx/Ginit_remote.c b/src/tilegx/Ginit_remote.c new file mode 100644 index 00000000..c5541008 --- /dev/null +++ b/src/tilegx/Ginit_remote.c @@ -0,0 +1,47 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "init.h" +#include "unwind_i.h" + +PROTECTED int +unw_init_remote (unw_cursor_t *cursor, unw_addr_space_t as, void *as_arg) +{ +#ifdef UNW_LOCAL_ONLY + return -UNW_EINVAL; +#else /* !UNW_LOCAL_ONLY */ + struct cursor *c = (struct cursor *) cursor; + + if (!tdep_init_done) + tdep_init (); + + Debug (1, "(cursor=%p)\n", c); + + c->dwarf.as = as; + c->dwarf.as_arg = as_arg; + + return common_init (c, 0); +#endif /* !UNW_LOCAL_ONLY */ +} diff --git a/src/tilegx/Gis_signal_frame.c b/src/tilegx/Gis_signal_frame.c new file mode 100644 index 00000000..96bd34ad --- /dev/null +++ b/src/tilegx/Gis_signal_frame.c @@ -0,0 +1,115 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" +#include +#include "offsets.h" + +#ifdef __linux__ +#include +#include +#else +# error "Only support Linux!" +#endif + +#define MOVELI_R10_RT_SIGRETURN \ + ( 0x000007e051483000ULL | \ + ((unsigned long)__NR_rt_sigreturn << 43) | \ + ((unsigned long)TREG_SYSCALL_NR << 31) ) +#define SWINT1 0x286b180051485000ULL + +PROTECTED int +unw_is_signal_frame (unw_cursor_t *cursor) +{ + struct cursor *c = (struct cursor*) cursor; + unw_word_t w0, w1, ip; + unw_addr_space_t as; + unw_accessors_t *a; + void *arg; + int ret; + + as = c->dwarf.as; + a = unw_get_accessors (as); + arg = c->dwarf.as_arg; + + ip = c->dwarf.ip; + + if (!ip || !a->access_mem || (ip & (sizeof(unw_word_t) - 1))) + return 0; + + if ((ret = (*a->access_mem) (as, ip, &w0, 0, arg)) < 0) + return ret; + + if ((ret = (*a->access_mem) (as, ip + 8, &w1, 0, arg)) < 0) + return ret; + + /* Return 1 if the IP points to a RT sigreturn sequence. */ + if (w0 == MOVELI_R10_RT_SIGRETURN && + w1 == SWINT1) + { + return 1; + } + return 0; +} + + +PROTECTED int +unw_handle_signal_frame (unw_cursor_t *cursor) +{ + int i; + struct cursor *c = (struct cursor *) cursor; + unw_word_t sc_addr, sp, sp_addr = c->dwarf.cfa; + struct dwarf_loc sp_loc = DWARF_LOC (sp_addr, 0); + int ret; + + if ((ret = dwarf_get (&c->dwarf, sp_loc, &sp)) < 0) + return -UNW_EUNSPEC; + + /* Save the SP and PC to be able to return execution at this point + later in time (unw_resume). */ + c->sigcontext_sp = c->dwarf.cfa; + c->sigcontext_pc = c->dwarf.ip; + + c->sigcontext_addr = sp_addr + sizeof (siginfo_t) + + C_ABI_SAVE_AREA_SIZE; + sc_addr = c->sigcontext_addr + LINUX_UC_MCONTEXT_OFF; + + /* Update the dwarf cursor. + Set the location of the registers to the corresponding addresses of the + uc_mcontext / sigcontext structure contents. */ + +#define SC_REG_OFFSET(X) (8 * X) + + for (i = UNW_TILEGX_R0; i <= UNW_TILEGX_R55; i++) + { + c->dwarf.loc[i] = DWARF_LOC (sc_addr + SC_REG_OFFSET(i), 0); + } + + /* Set SP/CFA and PC/IP. */ + dwarf_get (&c->dwarf, c->dwarf.loc[UNW_TILEGX_R54], &c->dwarf.cfa); + dwarf_get (&c->dwarf, c->dwarf.loc[UNW_TILEGX_R55], &c->dwarf.ip); + + return 1; +} diff --git a/src/tilegx/Gregs.c b/src/tilegx/Gregs.c new file mode 100644 index 00000000..53e7bf4c --- /dev/null +++ b/src/tilegx/Gregs.c @@ -0,0 +1,66 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" + +HIDDEN int +tdep_access_reg (struct cursor *c, unw_regnum_t reg, unw_word_t *valp, + int write) +{ + dwarf_loc_t loc = DWARF_NULL_LOC; + + if (reg == UNW_TILEGX_R54 && !write) + { + reg = UNW_TILEGX_CFA; + } + + if (reg <= UNW_TILEGX_R55) + loc = c->dwarf.loc[reg - UNW_TILEGX_R0]; + else if (reg == UNW_TILEGX_CFA) + { + if (write) + return -UNW_EREADONLYREG; + *valp = c->dwarf.cfa; + return 0; + } + else + { + Debug (1, "bad register number %u\n", reg); + return -UNW_EBADREG; + } + + if (write) + return dwarf_put (&c->dwarf, loc, *valp); + else + return dwarf_get (&c->dwarf, loc, valp); +} + +HIDDEN int +tdep_access_fpreg (struct cursor *c, unw_regnum_t reg, unw_fpreg_t *valp, + int write) +{ + Debug (1, "bad register number %u\n", reg); + return -UNW_EBADREG; +} diff --git a/src/tilegx/Gresume.c b/src/tilegx/Gresume.c new file mode 100644 index 00000000..f532fd85 --- /dev/null +++ b/src/tilegx/Gresume.c @@ -0,0 +1,94 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + + +#include "unwind_i.h" +#include "offsets.h" +#include + +#ifndef UNW_REMOTE_ONLY + +HIDDEN inline int +tilegx_local_resume (unw_addr_space_t as, unw_cursor_t *cursor, void *arg) +{ + int i; + struct cursor *c = (struct cursor *) cursor; + ucontext_t *uc = c->dwarf.as_arg; + + Debug (1, "(cursor=%p\n", c); + + return setcontext(uc); +} + +#endif /* !UNW_REMOTE_ONLY */ + +static inline void +establish_machine_state (struct cursor *c) +{ + unw_addr_space_t as = c->dwarf.as; + void *arg = c->dwarf.as_arg; + unw_fpreg_t fpval; + unw_word_t val; + int reg; + + Debug (8, "copying out cursor state\n"); + + for (reg = 0; reg <= UNW_REG_LAST; ++reg) + { + Debug (16, "copying %s %d\n", unw_regname (reg), reg); + + if (unw_is_fpreg (reg)) + { + Debug (1, "no fp!"); + abort (); + } + else + { + if (tdep_access_reg (c, reg, &val, 0) >= 0) + as->acc.access_reg (as, reg, &val, 1, arg); + } + } +} + +PROTECTED int +unw_resume (unw_cursor_t *cursor) +{ + struct cursor *c = (struct cursor *) cursor; + + Debug (1, "(cursor=%p) ip=0x%lx\n", c, c->dwarf.ip); + + if (!c->dwarf.ip) + { + /* This can happen easily when the frame-chain gets truncated + due to bad or missing unwind-info. */ + Debug (1, "refusing to resume execution at address 0\n"); + return -UNW_EINVAL; + } + + establish_machine_state (c); + + return (*c->dwarf.as->acc.resume) (c->dwarf.as, (unw_cursor_t *) c, + c->dwarf.as_arg); +} diff --git a/src/tilegx/Gstep.c b/src/tilegx/Gstep.c new file mode 100644 index 00000000..0d8f8af7 --- /dev/null +++ b/src/tilegx/Gstep.c @@ -0,0 +1,53 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" +#include "offsets.h" + +PROTECTED int +unw_step (unw_cursor_t *cursor) +{ + struct cursor *c = (struct cursor *) cursor; + int ret; + + Debug (1, "(cursor=%p, ip=0x%016lx, sp=0x%016lx)\n", + c, c->dwarf.ip, c->dwarf.cfa); + + /* Special handling the singal frame. */ + if (unw_is_signal_frame (cursor)) + return unw_handle_signal_frame (cursor); + + /* Try DWARF-based unwinding... */ + ret = dwarf_step (&c->dwarf); + + if (unlikely (ret == -UNW_ESTOPUNWIND)) + return ret; + + /* Dwarf unwinding didn't work, stop. */ + if (unlikely (ret < 0)) + return 0; + + return (c->dwarf.ip == 0) ? 0 : 1; +} diff --git a/src/tilegx/Lcreate_addr_space.c b/src/tilegx/Lcreate_addr_space.c new file mode 100644 index 00000000..0f2dc6be --- /dev/null +++ b/src/tilegx/Lcreate_addr_space.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gcreate_addr_space.c" +#endif diff --git a/src/tilegx/Lget_proc_info.c b/src/tilegx/Lget_proc_info.c new file mode 100644 index 00000000..69028b01 --- /dev/null +++ b/src/tilegx/Lget_proc_info.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gget_proc_info.c" +#endif diff --git a/src/tilegx/Lget_save_loc.c b/src/tilegx/Lget_save_loc.c new file mode 100644 index 00000000..9ea048a9 --- /dev/null +++ b/src/tilegx/Lget_save_loc.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gget_save_loc.c" +#endif diff --git a/src/tilegx/Lglobal.c b/src/tilegx/Lglobal.c new file mode 100644 index 00000000..6d7b489e --- /dev/null +++ b/src/tilegx/Lglobal.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gglobal.c" +#endif diff --git a/src/tilegx/Linit.c b/src/tilegx/Linit.c new file mode 100644 index 00000000..e9abfdd4 --- /dev/null +++ b/src/tilegx/Linit.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Ginit.c" +#endif diff --git a/src/tilegx/Linit_local.c b/src/tilegx/Linit_local.c new file mode 100644 index 00000000..68a1687e --- /dev/null +++ b/src/tilegx/Linit_local.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Ginit_local.c" +#endif diff --git a/src/tilegx/Linit_remote.c b/src/tilegx/Linit_remote.c new file mode 100644 index 00000000..58cb04ab --- /dev/null +++ b/src/tilegx/Linit_remote.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Ginit_remote.c" +#endif diff --git a/src/tilegx/Lis_signal_frame.c b/src/tilegx/Lis_signal_frame.c new file mode 100644 index 00000000..b9a7c4f5 --- /dev/null +++ b/src/tilegx/Lis_signal_frame.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gis_signal_frame.c" +#endif diff --git a/src/tilegx/Lregs.c b/src/tilegx/Lregs.c new file mode 100644 index 00000000..2c9c75cd --- /dev/null +++ b/src/tilegx/Lregs.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gregs.c" +#endif diff --git a/src/tilegx/Lresume.c b/src/tilegx/Lresume.c new file mode 100644 index 00000000..41a8cf00 --- /dev/null +++ b/src/tilegx/Lresume.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gresume.c" +#endif diff --git a/src/tilegx/Lstep.c b/src/tilegx/Lstep.c new file mode 100644 index 00000000..c1ac3c75 --- /dev/null +++ b/src/tilegx/Lstep.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gstep.c" +#endif diff --git a/src/tilegx/elfxx.c b/src/tilegx/elfxx.c new file mode 100644 index 00000000..07d3d12b --- /dev/null +++ b/src/tilegx/elfxx.c @@ -0,0 +1,27 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "libunwind_i.h" + +#include "../src/elfxx.c" diff --git a/src/tilegx/gen-offsets.c b/src/tilegx/gen-offsets.c new file mode 100644 index 00000000..8704bb21 --- /dev/null +++ b/src/tilegx/gen-offsets.c @@ -0,0 +1,30 @@ +#include +#include +#include + +#define UC(N,X) \ + printf ("#define LINUX_UC_" N "_OFF\t0x%X\n", offsetof (ucontext_t, X)) + +#define SC(N,X) \ + printf ("#define LINUX_SC_" N "_OFF\t0x%X\n", offsetof (struct sigcontext, X)) + +int +main (void) +{ + printf ( +"/* Linux-specific definitions: */\n\n" + +"/* Define various structure offsets to simplify cross-compilation. */\n\n" + +"/* Offsets for TILEGX Linux \"ucontext_t\": */\n\n"); + + UC ("FLAGS", uc_flags); + UC ("LINK", uc_link); + UC ("STACK", uc_stack); + UC ("MCONTEXT", uc_mcontext); + UC ("SIGMASK", uc_sigmask); + + UC ("MCONTEXT_GREGS", uc_mcontext.gregs); + + return 0; +} diff --git a/src/tilegx/getcontext.S b/src/tilegx/getcontext.S new file mode 100644 index 00000000..fbc8654b --- /dev/null +++ b/src/tilegx/getcontext.S @@ -0,0 +1,36 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "offsets.h" +#include + + .text + # define REG(X) LINUX_UC_MCONTEXT_GREGS + 8 * (X) + .global _Utilegx_getcontext + .type _Utilegx_getcontext, %function + # This is a stub version of getcontext() for TILEGX. +_Utilegx_getcontext: + + diff --git a/src/tilegx/init.h b/src/tilegx/init.h new file mode 100644 index 00000000..e75e590b --- /dev/null +++ b/src/tilegx/init.h @@ -0,0 +1,64 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" + +static inline int +common_init (struct cursor *c, unsigned use_prev_instr) +{ + int ret, i; + + for (i = 0; i < 56; i++) + c->dwarf.loc[i] = DWARF_REG_LOC (&c->dwarf, UNW_TILEGX_R0 + i); + for (i = 56; i < DWARF_NUM_PRESERVED_REGS; ++i) + c->dwarf.loc[i] = DWARF_NULL_LOC; + + if (use_prev_instr == 0) + ret = dwarf_get (&c->dwarf, DWARF_REG_LOC (&c->dwarf, UNW_TILEGX_PC), + &c->dwarf.ip); + else + ret = dwarf_get (&c->dwarf, DWARF_REG_LOC (&c->dwarf, UNW_TILEGX_R55), + &c->dwarf.ip); + + if (ret < 0) + return ret; + + ret = dwarf_get (&c->dwarf, DWARF_REG_LOC (&c->dwarf, UNW_TILEGX_R54), + &c->dwarf.cfa); + + if (ret < 0) + return ret; + + c->dwarf.args_size = 0; + c->dwarf.ret_addr_column = 0; + c->dwarf.stash_frames = 0; + c->dwarf.use_prev_instr = use_prev_instr; + c->dwarf.pi_valid = 0; + c->dwarf.pi_is_dynamic = 0; + c->dwarf.hint = 0; + c->dwarf.prev_rs = 0; + + return 0; +} diff --git a/src/tilegx/is_fpreg.c b/src/tilegx/is_fpreg.c new file mode 100644 index 00000000..118e055e --- /dev/null +++ b/src/tilegx/is_fpreg.c @@ -0,0 +1,33 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "libunwind_i.h" + +/* TILEGX has no FP. */ + +PROTECTED int +unw_is_fpreg (int regnum) +{ + return 0; +} diff --git a/src/tilegx/offsets.h b/src/tilegx/offsets.h new file mode 100644 index 00000000..6d30f1ed --- /dev/null +++ b/src/tilegx/offsets.h @@ -0,0 +1,12 @@ +/* Linux-specific definitions: */ + +/* Define various structure offsets to simplify cross-compilation. */ + +/* Offsets for TILEGX Linux "ucontext_t": */ + +#define LINUX_UC_FLAGS_OFF 0x0 +#define LINUX_UC_LINK_OFF 0x8 +#define LINUX_UC_STACK_OFF 0x10 +#define LINUX_UC_MCONTEXT_OFF 0x28 +#define LINUX_UC_SIGMASK_OFF 0x228 +#define LINUX_UC_MCONTEXT_GREGS 0x28 diff --git a/src/tilegx/regname.c b/src/tilegx/regname.c new file mode 100644 index 00000000..fd738046 --- /dev/null +++ b/src/tilegx/regname.c @@ -0,0 +1,55 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + Copyright (C) 2014 Tilera Corp. + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#include "unwind_i.h" + +static const char *regname[] = + { + /* 0. */ + "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", + /* 8. */ + "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", + /* 16. */ + "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", + /* 24. */ + "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", + /* 32. */ + "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", + /* 40. */ + "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", + /* 48. */ + "r48", "r49", "r50", "r51", "r52", "r53", "r54", "r55", + /* pc, cfa */ + "pc", "cfa" + }; + +PROTECTED const char * +unw_regname (unw_regnum_t reg) +{ + if (reg < (unw_regnum_t) ARRAY_SIZE (regname)) + return regname[reg]; + else + return "???"; +} diff --git a/src/tilegx/siglongjmp.S b/src/tilegx/siglongjmp.S new file mode 100644 index 00000000..bccb1c77 --- /dev/null +++ b/src/tilegx/siglongjmp.S @@ -0,0 +1,7 @@ + /* Dummy implementation for now. */ + .globl _UI_siglongjmp_cont + .globl _UI_longjmp_cont + +_UI_siglongjmp_cont: +_UI_longjmp_cont: + jrp lr diff --git a/src/tilegx/unwind_i.h b/src/tilegx/unwind_i.h new file mode 100644 index 00000000..aac7be38 --- /dev/null +++ b/src/tilegx/unwind_i.h @@ -0,0 +1,44 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2008 CodeSourcery + +This file is part of libunwind. + +Permission is hereby granted, free of charge, to any person obtaining +a copy of this software and associated documentation files (the +"Software"), to deal in the Software without restriction, including +without limitation the rights to use, copy, modify, merge, publish, +distribute, sublicense, and/or sell copies of the Software, and to +permit persons to whom the Software is furnished to do so, subject to +the following conditions: + +The above copyright notice and this permission notice shall be +included in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ + +#ifndef unwind_i_h +#define unwind_i_h + +#include +#include + +#include + +#include "libunwind_i.h" + +#define tilegx_local_resume UNW_OBJ(local_resume) +#define tilegx_local_addr_space_init UNW_OBJ(local_addr_space_init) + +extern int tilegx_local_resume (unw_addr_space_t as, + unw_cursor_t *cursor, + void *arg); + +extern void tilegx_local_addr_space_init (void); + +#endif /* unwind_i_h */ diff --git a/tests/Gtest-resume-sig.c b/tests/Gtest-resume-sig.c index 55eb00a0..147ecd03 100644 --- a/tests/Gtest-resume-sig.c +++ b/tests/Gtest-resume-sig.c @@ -115,6 +115,11 @@ handler (int sig) if ((ret = unw_step (&c)) < 0) /* step to kill() */ panic ("unw_step(2) failed: ret=%d\n", ret); +#if defined(UNW_TARGET_TILEGX) + if ((ret = unw_step (&c)) < 0) /* step to signal trampoline */ + panic ("unw_step(2) failed: ret=%d\n", ret); +#endif + if ((ret = unw_get_reg (&c, UNW_REG_IP, &ip)) < 0) panic ("unw_get_reg(IP) failed: ret=%d\n", ret); if (verbose) diff --git a/tests/check-namespace.sh.in b/tests/check-namespace.sh.in index d2e6efb2..1ef74abb 100644 --- a/tests/check-namespace.sh.in +++ b/tests/check-namespace.sh.in @@ -158,6 +158,15 @@ check_local_unw_abi () { match _UL${plat}_dwarf_search_unwind_table match _UL${plat}_dwarf_find_unwind_table ;; + tilegx) + match _U${plat}_is_fpreg + match _UL${plat}_dwarf_search_unwind_table + match _UL${plat}_dwarf_find_unwind_table + match _UL${plat}_local_addr_space_init + match _U${plat}_get_elf_image + match ${plat}_lock + ;; + *) match _U${plat}_is_fpreg match _UL${plat}_dwarf_search_unwind_table @@ -239,6 +248,14 @@ check_generic_unw_abi () { match _U${plat}_dwarf_search_unwind_table match _U${plat}_dwarf_find_unwind_table ;; + tilegx) + match _U${plat}_dwarf_search_unwind_table + match _U${plat}_dwarf_find_unwind_table + match _U${plat}_get_elf_image + match _U${plat}_is_fpreg + match _U${plat}_local_addr_space_init + match ${plat}_lock + ;; *) match _U${plat}_is_fpreg match _U${plat}_dwarf_search_unwind_table diff --git a/tests/flush-cache.S b/tests/flush-cache.S index 6d514499..3ee47269 100644 --- a/tests/flush-cache.S +++ b/tests/flush-cache.S @@ -77,7 +77,21 @@ flush_cache: .globl flush_cache flush_cache: bx lr +#elif defined(__tilegx__) + .text + .globl flush_cache +flush_cache: + andi r0, r0, -64 +1: { + flush r0 ; + addi r0, r0, 64 + } + { + bgtz r1, 1b ; + addi r1, r1, -64 + } + jrp lr #else # error Need flush_cache code for this architecture. #endif