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author | Jason M. Bills <jason.m.bills@linux.intel.com> | 2020-12-08 00:38:17 +0300 |
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committer | Jason M. Bills <jason.m.bills@linux.intel.com> | 2020-12-08 00:38:17 +0300 |
commit | 8d6ae7f2a817751fad151168fa10ce28ee0869d8 (patch) | |
tree | 281032f7ec07c41589aa094bd165cc2a98f2d3a7 /meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch | |
parent | c16fb8893b19075db4bcf3b5bf33c1db8c3ca2bd (diff) | |
parent | 5da3c2284560a7e08ffafd03c5b5ba44a3242228 (diff) | |
download | openbmc-8d6ae7f2a817751fad151168fa10ce28ee0869d8.tar.xz |
Merge tag '0.26' of ssh://git-amr-1.devtools.intel.com:29418/openbmc-openbmc into update
Diffstat (limited to 'meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch')
-rw-r--r-- | meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch | 384 |
1 files changed, 0 insertions, 384 deletions
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch deleted file mode 100644 index 5d8564085..000000000 --- a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch +++ /dev/null @@ -1,384 +0,0 @@ -From da27c7161c676550f5fe8a4e0f7f395e5e0d4770 Mon Sep 17 00:00:00 2001 -From: David Holsgrove <david.holsgrove@petalogix.com> -Date: Fri, 18 May 2012 11:49:50 +1000 -Subject: [PATCH 03/16] [Patch, microblaze]: Initial port of microblaze core - reading support - -Added support for reading notes in linux core dumps -Support for reading of PRSTATUS and PSINFO information for rebuilding -".reg" sections of core dumps at run time. - -Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com> -Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com> -Upstream-Status: Pending ---- - bfd/elf32-microblaze.c | 64 ++++++++++++++++++++++++++++++++ - gdb/configure.tgt | 2 +- - gdb/microblaze-linux-tdep.c | 61 +++++++++++++++++++++++++++++++ - gdb/microblaze-tdep.c | 89 +++++++++++++++++++++++++++++++++++++++++++++ - gdb/microblaze-tdep.h | 28 ++++++++++++++ - 5 files changed, 243 insertions(+), 1 deletion(-) - -diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c -index 9837b18..cbd18f0 100644 ---- a/bfd/elf32-microblaze.c -+++ b/bfd/elf32-microblaze.c -@@ -668,6 +668,67 @@ microblaze_elf_is_local_label_name (bfd *abfd, const char *name) - return _bfd_elf_is_local_label_name (abfd, name); - } - -+/* Support for core dump NOTE sections. */ -+static bfd_boolean -+microblaze_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) -+{ -+ int offset; -+ unsigned int size; -+ -+ switch (note->descsz) -+ { -+ default: -+ return FALSE; -+ -+ case 228: /* Linux/MicroBlaze */ -+ /* pr_cursig */ -+ elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); -+ -+ /* pr_pid */ -+ elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24); -+ -+ /* pr_reg */ -+ offset = 72; -+ size = 50 * 4; -+ -+ break; -+ } -+ -+ /* Make a ".reg/999" section. */ -+ return _bfd_elfcore_make_pseudosection (abfd, ".reg", -+ size, note->descpos + offset); -+} -+ -+static bfd_boolean -+microblaze_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) -+{ -+ switch (note->descsz) -+ { -+ default: -+ return FALSE; -+ -+ case 128: /* Linux/MicroBlaze elf_prpsinfo */ -+ elf_tdata (abfd)->core->program -+ = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16); -+ elf_tdata (abfd)->core->command -+ = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80); -+ } -+ -+ /* Note that for some reason, a spurious space is tacked -+ onto the end of the args in some (at least one anyway) -+ implementations, so strip it off if it exists. */ -+ -+ { -+ char *command = elf_tdata (abfd)->core->command; -+ int n = strlen (command); -+ -+ if (0 < n && command[n - 1] == ' ') -+ command[n - 1] = '\0'; -+ } -+ -+ return TRUE; -+} -+ - /* The microblaze linker (like many others) needs to keep track of - the number of relocs that it decides to copy as dynamic relocs in - check_relocs for each symbol. This is so that it can later discard -@@ -3506,4 +3567,7 @@ microblaze_elf_add_symbol_hook (bfd *abfd, - #define elf_backend_size_dynamic_sections microblaze_elf_size_dynamic_sections - #define elf_backend_add_symbol_hook microblaze_elf_add_symbol_hook - -+#define elf_backend_grok_prstatus microblaze_elf_grok_prstatus -+#define elf_backend_grok_psinfo microblaze_elf_grok_psinfo -+ - #include "elf32-target.h" -diff --git a/gdb/configure.tgt b/gdb/configure.tgt -index 01311b2..9297c56 100644 ---- a/gdb/configure.tgt -+++ b/gdb/configure.tgt -@@ -340,7 +340,7 @@ mep-*-*) - - microblaze*-linux-*|microblaze*-*-linux*) - # Target: Xilinx MicroBlaze running Linux -- gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o \ -+ gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o glibc-tdep.o \ - monitor.o dsrec.o solib-svr4.o symfile-mem.o linux-tdep.o" - gdb_sim=../sim/microblaze/libsim.a - ;; -diff --git a/gdb/microblaze-linux-tdep.c b/gdb/microblaze-linux-tdep.c -index 8d360eb..7e6b61b 100644 ---- a/gdb/microblaze-linux-tdep.c -+++ b/gdb/microblaze-linux-tdep.c -@@ -32,6 +32,7 @@ - #include "regset.h" - #include "solib-svr4.h" - #include "microblaze-tdep.h" -+#include "glibc-tdep.h" - #include "trad-frame.h" - #include "frame-unwind.h" - #include "tramp-frame.h" -@@ -116,6 +117,43 @@ static struct tramp_frame microblaze_linux_sighandler_tramp_frame = - microblaze_linux_sighandler_cache_init - }; - -+const struct microblaze_gregset microblaze_linux_core_gregset; -+ -+static void -+microblaze_linux_supply_core_gregset (const struct regset *regset, -+ struct regcache *regcache, -+ int regnum, const void *gregs, size_t len) -+{ -+ microblaze_supply_gregset (µblaze_linux_core_gregset, regcache, -+ regnum, gregs); -+} -+ -+static void -+microblaze_linux_collect_core_gregset (const struct regset *regset, -+ const struct regcache *regcache, -+ int regnum, void *gregs, size_t len) -+{ -+ microblaze_collect_gregset (µblaze_linux_core_gregset, regcache, -+ regnum, gregs); -+} -+ -+static void -+microblaze_linux_supply_core_fpregset (const struct regset *regset, -+ struct regcache *regcache, -+ int regnum, const void *fpregs, size_t len) -+{ -+ /* FIXME. */ -+ microblaze_supply_fpregset (regcache, regnum, fpregs); -+} -+ -+static void -+microblaze_linux_collect_core_fpregset (const struct regset *regset, -+ const struct regcache *regcache, -+ int regnum, void *fpregs, size_t len) -+{ -+ /* FIXME. */ -+ microblaze_collect_fpregset (regcache, regnum, fpregs); -+} - - static void - microblaze_linux_init_abi (struct gdbarch_info info, -@@ -123,6 +161,10 @@ microblaze_linux_init_abi (struct gdbarch_info info, - { - struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); - -+ tdep->gregset = regset_alloc (gdbarch, microblaze_linux_supply_core_gregset, -+ microblaze_linux_collect_core_gregset); -+ tdep->sizeof_gregset = 200; -+ - linux_init_abi (info, gdbarch); - - set_gdbarch_memory_remove_breakpoint (gdbarch, -@@ -135,6 +177,25 @@ microblaze_linux_init_abi (struct gdbarch_info info, - /* Trampolines. */ - tramp_frame_prepend_unwinder (gdbarch, - µblaze_linux_sighandler_tramp_frame); -+ -+ /* BFD target for core files. */ -+ if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) -+ set_gdbarch_gcore_bfd_target (gdbarch, "elf32-microblaze"); -+ else -+ set_gdbarch_gcore_bfd_target (gdbarch, "elf32-microblazeel"); -+ -+ -+ /* Shared library handling. */ -+ set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target); -+ set_gdbarch_skip_solib_resolver (gdbarch, glibc_skip_solib_resolver); -+ -+ set_gdbarch_regset_from_core_section (gdbarch, -+ microblaze_regset_from_core_section); -+ -+ /* Enable TLS support. */ -+ set_gdbarch_fetch_tls_load_module_address (gdbarch, -+ svr4_fetch_objfile_link_map); -+ - } - - /* -Wmissing-prototypes */ -diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c -index 14c1b52..36cf1ca 100644 ---- a/gdb/microblaze-tdep.c -+++ b/gdb/microblaze-tdep.c -@@ -145,6 +145,14 @@ microblaze_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, - return sp; - } - -+static CORE_ADDR -+microblaze_store_arguments (struct regcache *regcache, int nargs, -+ struct value **args, CORE_ADDR sp, -+ int struct_return, CORE_ADDR struct_addr) -+{ -+ error (_("store_arguments not implemented")); -+ return sp; -+} - - static CORE_ADDR - microblaze_push_dummy_call (struct gdbarch *gdbarch, struct value *function, -@@ -536,6 +544,12 @@ microblaze_frame_base_address (struct frame_info *next_frame, - return cache->base; - } - -+static const struct frame_unwind * -+microblaze_frame_sniffer (struct frame_info *next_frame) -+{ -+ return µblaze_frame_unwind; -+} -+ - static const struct frame_base microblaze_frame_base = - { - µblaze_frame_unwind, -@@ -664,6 +678,70 @@ microblaze_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int reg) - return dwarf2_to_reg_map[reg]; - } - -+ -+void -+microblaze_supply_gregset (const struct microblaze_gregset *gregset, -+ struct regcache *regcache, -+ int regnum, const void *gregs) -+{ -+ unsigned int *regs = gregs; -+ if (regnum >= 0) -+ regcache_raw_supply (regcache, regnum, regs + regnum); -+ -+ if (regnum == -1) { -+ int i; -+ -+ for (i = 0; i < 50; i++) { -+ regcache_raw_supply (regcache, i, regs + i); -+ } -+ } -+} -+ -+ -+void -+microblaze_collect_gregset (const struct microblaze_gregset *gregset, -+ const struct regcache *regcache, -+ int regnum, void *gregs) -+{ -+ /* FIXME. */ -+} -+ -+void -+microblaze_supply_fpregset (struct regcache *regcache, -+ int regnum, const void *fpregs) -+{ -+ /* FIXME. */ -+} -+ -+void -+microblaze_collect_fpregset (const struct regcache *regcache, -+ int regnum, void *fpregs) -+{ -+ /* FIXME. */ -+} -+ -+ -+/* Return the appropriate register set for the core section identified -+ by SECT_NAME and SECT_SIZE. */ -+ -+const struct regset * -+microblaze_regset_from_core_section (struct gdbarch *gdbarch, -+ const char *sect_name, size_t sect_size) -+{ -+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); -+ -+ microblaze_debug ("microblaze_regset_from_core_section, sect_name = %s\n", sect_name); -+ -+ if (strcmp (sect_name, ".reg") == 0 && sect_size >= tdep->sizeof_gregset) -+ return tdep->gregset; -+ -+ if (strcmp (sect_name, ".reg2") == 0 && sect_size >= tdep->sizeof_fpregset) -+ return tdep->fpregset; -+ -+ microblaze_debug ("microblaze_regset_from_core_section returning null :-( \n"); -+ return NULL; -+} -+ - static struct gdbarch * - microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) - { -@@ -679,6 +757,11 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) - tdep = XNEW (struct gdbarch_tdep); - gdbarch = gdbarch_alloc (&info, tdep); - -+ tdep->gregset = NULL; -+ tdep->sizeof_gregset = 0; -+ tdep->fpregset = NULL; -+ tdep->sizeof_fpregset = 0; -+ - set_gdbarch_long_double_bit (gdbarch, 128); - - set_gdbarch_num_regs (gdbarch, MICROBLAZE_NUM_REGS); -@@ -726,6 +809,12 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) - frame_unwind_append_unwinder (gdbarch, µblaze_frame_unwind); - frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer); - -+ /* If we have register sets, enable the generic core file support. */ -+ if (tdep->gregset) { -+ set_gdbarch_regset_from_core_section (gdbarch, -+ microblaze_regset_from_core_section); -+ } -+ - return gdbarch; - } - -diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h -index a532092..fec24b9 100644 ---- a/gdb/microblaze-tdep.h -+++ b/gdb/microblaze-tdep.h -@@ -22,8 +22,22 @@ - - - /* Microblaze architecture-specific information. */ -+struct microblaze_gregset -+{ -+ unsigned int gregs[32]; -+ unsigned int fpregs[32]; -+ unsigned int pregs[16]; -+}; -+ - struct gdbarch_tdep - { -+ int dummy; // declare something. -+ -+ /* Register sets. */ -+ struct regset *gregset; -+ size_t sizeof_gregset; -+ struct regset *fpregset; -+ size_t sizeof_fpregset; - }; - - struct microblaze_frame_cache -@@ -117,4 +131,18 @@ enum microblaze_regnum - Only used for native debugging. */ - #define MICROBLAZE_BREAKPOINT {0xb9, 0xcc, 0x00, 0x60} - -+extern void microblaze_supply_gregset (const struct microblaze_gregset *gregset, -+ struct regcache *regcache, -+ int regnum, const void *gregs); -+extern void microblaze_collect_gregset (const struct microblaze_gregset *gregset, -+ const struct regcache *regcache, -+ int regnum, void *gregs); -+extern void microblaze_supply_fpregset (struct regcache *regcache, -+ int regnum, const void *fpregs); -+extern void microblaze_collect_fpregset (const struct regcache *regcache, -+ int regnum, void *fpregs); -+ -+extern const struct regset * microblaze_regset_from_core_section (struct gdbarch *gdbarch, -+ const char *sect_name, size_t sect_size); -+ - #endif /* microblaze-tdep.h */ --- -1.9.0 - |