diff options
author | Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> | 2007-09-12 21:52:25 -0600 |
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committer | David Mosberger-Tang <davidm@koala.mostang.com> | 2007-09-12 21:52:25 -0600 |
commit | 4499bb29a6214b5df5b3b21e03c6b4f3c8f26cfd (patch) | |
tree | cb0ae28cc5daff63feebb678437f76cd50e8d6a9 /src/ppc | |
parent | 6d75df39b5dd602be2bc3b8edc8b745d6224fd71 (diff) | |
download | libunwind-4499bb29a6214b5df5b3b21e03c6b4f3c8f26cfd.tar.gz |
[PPC32] First check-in to add preliminary support for Linux/PPC32.
Diffstat (limited to 'src/ppc')
-rw-r--r-- | src/ppc/Gcreate_addr_space.c | 54 | ||||
-rw-r--r-- | src/ppc/Gget_proc_info.c | 34 | ||||
-rw-r--r-- | src/ppc/Gget_save_loc.c | 34 | ||||
-rw-r--r-- | src/ppc/Ginit_local.c | 65 | ||||
-rw-r--r-- | src/ppc/Ginit_remote.c | 60 | ||||
-rw-r--r-- | src/ppc/Gis_signal_frame.c | 66 | ||||
-rw-r--r-- | src/ppc/Lcreate_addr_space.c | 5 | ||||
-rw-r--r-- | src/ppc/Lget_proc_info.c | 5 | ||||
-rw-r--r-- | src/ppc/Lget_save_loc.c | 5 | ||||
-rw-r--r-- | src/ppc/Linit_local.c | 5 | ||||
-rw-r--r-- | src/ppc/Linit_remote.c | 5 | ||||
-rw-r--r-- | src/ppc/Lis_signal_frame.c | 5 | ||||
-rw-r--r-- | src/ppc/longjmp.S | 31 | ||||
-rw-r--r-- | src/ppc/siglongjmp.S | 26 |
14 files changed, 400 insertions, 0 deletions
diff --git a/src/ppc/Gcreate_addr_space.c b/src/ppc/Gcreate_addr_space.c new file mode 100644 index 00000000..21ec10fc --- /dev/null +++ b/src/ppc/Gcreate_addr_space.c @@ -0,0 +1,54 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2006-2007 IBM + Contributed by + Corey Ashford <cjashfor@us.ibm.com> + Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com> + +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 <stdlib.h> + +#include <libunwind_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; + + /* + * Linux ppc64 supports only big-endian. + */ + if (byte_order != 0 && byte_order != __BIG_ENDIAN) + return NULL; + return as; +#endif +} diff --git a/src/ppc/Gget_proc_info.c b/src/ppc/Gget_proc_info.c new file mode 100644 index 00000000..21be70c4 --- /dev/null +++ b/src/ppc/Gget_proc_info.c @@ -0,0 +1,34 @@ +/* libunwind - a platform-independent unwind library + + Copied from src/x86_64/, modified slightly (or made empty stubs) for + building frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com> + +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> + +PROTECTED int +unw_get_proc_info (unw_cursor_t *cursor, unw_proc_info_t *pi) +{ + /* XXX: empty stub. */ + return 0; +} diff --git a/src/ppc/Gget_save_loc.c b/src/ppc/Gget_save_loc.c new file mode 100644 index 00000000..c5beb81d --- /dev/null +++ b/src/ppc/Gget_save_loc.c @@ -0,0 +1,34 @@ +/* libunwind - a platform-independent unwind library + + Copied from src/x86_64/, modified slightly (or made empty stubs) for + building frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com> + +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> + +PROTECTED int +unw_get_save_loc (unw_cursor_t *cursor, int reg, unw_save_loc_t *sloc) +{ + /* XXX: empty stub. */ + return 0; +} diff --git a/src/ppc/Ginit_local.c b/src/ppc/Ginit_local.c new file mode 100644 index 00000000..2d9ab2ce --- /dev/null +++ b/src/ppc/Ginit_local.c @@ -0,0 +1,65 @@ +/* libunwind - a platform-independent unwind library + + Copied from src/x86_64/, modified slightly (or made empty stubs) for + building frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com> + +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> + +#ifdef UNW_TARGET_PPC64 +#include "../ppc64/init.h" +#else +#include "../ppc32/init.h" +#endif + +#ifdef UNW_REMOTE_ONLY + +PROTECTED int +unw_init_local (unw_cursor_t *cursor, ucontext_t *uc) +{ + /* XXX: empty stub. */ + 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_needs_initialization) + tdep_init (); + + Debug (1, "(cursor=%p)\n", c); + + c->dwarf.as = unw_local_addr_space; + c->dwarf.as_arg = uc; + #ifdef UNW_TARGET_PPC64 + return common_init_ppc64 (c); + #else + return common_init_ppc32 (c); + #endif +} + +#endif /* !UNW_REMOTE_ONLY */ diff --git a/src/ppc/Ginit_remote.c b/src/ppc/Ginit_remote.c new file mode 100644 index 00000000..66269d2c --- /dev/null +++ b/src/ppc/Ginit_remote.c @@ -0,0 +1,60 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2006-2007 IBM + Contributed by + Corey Ashford <cjashfor@us.ibm.com> + Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com> + +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> + +#ifdef UNW_TARGET_PPC64 +#include "../ppc64/init.h" +#else +#include "../ppc32/init.h" +#endif + +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_needs_initialization) + tdep_init (); + + Debug (1, "(cursor=%p)\n", c); + + c->dwarf.as = as; + c->dwarf.as_arg = as_arg; + + #ifdef UNW_TARGET_PPC64 + return common_init_ppc64(c); + #elif UNW_TARGET_PPC32 + return common_init_ppc32 (c); + #else + #error init_remote :: NO VALID PPC ARCH! + #endif +#endif /* !UNW_LOCAL_ONLY */ +} diff --git a/src/ppc/Gis_signal_frame.c b/src/ppc/Gis_signal_frame.c new file mode 100644 index 00000000..41544290 --- /dev/null +++ b/src/ppc/Gis_signal_frame.c @@ -0,0 +1,66 @@ +/* libunwind - a platform-independent unwind library + Copyright (C) 2006-2007 IBM + Contributed by + Corey Ashford <cjashfor@us.ibm.com> + Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com> + +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> + +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; + as->validate = 1; /* Don't trust the ip */ + arg = c->dwarf.as_arg; + + /* Check if return address points at sigreturn sequence. + on ppc64 Linux that is (see libc.so): + 0x38210080 addi r1, r1, 128 // pop the stack + 0x380000ac li r0, 172 // invoke system service 172 + 0x44000002 sc + */ + + ip = c->dwarf.ip; + if (ip == 0) + return 0; + + /* Read up two 8-byte words at the IP. We are only looking at 3 + consecutive 32-bit words, so the second 8-byte word needs to be + shifted right by 32 bits (think big-endian) */ + + a = unw_get_accessors (as); + if ((ret = (*a->access_mem) (as, ip, &w0, 0, arg)) < 0 + || (ret = (*a->access_mem) (as, ip + 8, &w1, 0, arg)) < 0) + return 0; + w1 >>= 32; + return (w0 == 0x38210080380000ac && w1 == 0x44000002); + +} diff --git a/src/ppc/Lcreate_addr_space.c b/src/ppc/Lcreate_addr_space.c new file mode 100644 index 00000000..0f2dc6be --- /dev/null +++ b/src/ppc/Lcreate_addr_space.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gcreate_addr_space.c" +#endif diff --git a/src/ppc/Lget_proc_info.c b/src/ppc/Lget_proc_info.c new file mode 100644 index 00000000..69028b01 --- /dev/null +++ b/src/ppc/Lget_proc_info.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gget_proc_info.c" +#endif diff --git a/src/ppc/Lget_save_loc.c b/src/ppc/Lget_save_loc.c new file mode 100644 index 00000000..9ea048a9 --- /dev/null +++ b/src/ppc/Lget_save_loc.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gget_save_loc.c" +#endif diff --git a/src/ppc/Linit_local.c b/src/ppc/Linit_local.c new file mode 100644 index 00000000..68a1687e --- /dev/null +++ b/src/ppc/Linit_local.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Ginit_local.c" +#endif diff --git a/src/ppc/Linit_remote.c b/src/ppc/Linit_remote.c new file mode 100644 index 00000000..58cb04ab --- /dev/null +++ b/src/ppc/Linit_remote.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Ginit_remote.c" +#endif diff --git a/src/ppc/Lis_signal_frame.c b/src/ppc/Lis_signal_frame.c new file mode 100644 index 00000000..b9a7c4f5 --- /dev/null +++ b/src/ppc/Lis_signal_frame.c @@ -0,0 +1,5 @@ +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#if defined(UNW_LOCAL_ONLY) && !defined(UNW_REMOTE_ONLY) +#include "Gis_signal_frame.c" +#endif diff --git a/src/ppc/longjmp.S b/src/ppc/longjmp.S new file mode 100644 index 00000000..36bc1af0 --- /dev/null +++ b/src/ppc/longjmp.S @@ -0,0 +1,31 @@ +/* libunwind - a platform-independent unwind library + + Copied from src/x86_64/, modified slightly (or made empty stubs) for + building frysk successfully on ppc64, by Wu Zhou <woodzltc@cn.ibm.com> + +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. */ + + .globl _UI_longjmp_cont + + .type _UI_longjmp_cont, @function +_UI_longjmp_cont: + .size _UI_longjmp_cont, .-_UI_longjmp_cont diff --git a/src/ppc/siglongjmp.S b/src/ppc/siglongjmp.S new file mode 100644 index 00000000..86726968 --- /dev/null +++ b/src/ppc/siglongjmp.S @@ -0,0 +1,26 @@ +/* libunwind - a platform-independent unwind library + +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. */ + + .globl _UI_siglongjmp_cont + + _UI_siglongjmp_cont: |