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-rw-r--r--backends/ChangeLog46
-rw-r--r--backends/Makefile.am16
-rw-r--r--backends/aarch64_init.c3
-rw-r--r--backends/aarch64_symbol.c14
-rw-r--r--backends/arm_init.c3
-rw-r--r--backends/arm_symbol.c15
-rw-r--r--backends/bpf_init.c2
-rw-r--r--backends/bpf_regs.c6
-rw-r--r--backends/ppc64_init.c1
-rw-r--r--backends/ppc64_unwind.c76
-rw-r--r--backends/ppc_corenote.c13
-rw-r--r--backends/ppc_init.c1
-rw-r--r--backends/ppc_regs.c10
-rw-r--r--backends/ppc_symbol.c10
-rw-r--r--backends/s390_initreg.c2
-rw-r--r--backends/sparc_reloc.def6
16 files changed, 197 insertions, 27 deletions
diff --git a/backends/ChangeLog b/backends/ChangeLog
index 1ac5bab3..a66e923e 100644
--- a/backends/ChangeLog
+++ b/backends/ChangeLog
@@ -1,3 +1,49 @@
+2017-07-27 Mark Wielaard <[email protected]>
+
+ * sparc_reloc.def: GOTDATA_OP_HIX22, GOTDATA_OP_LOX10 and
+ GOTDATA_OP can be used in ET_REL files.
+
+2017-07-19 Gustavo Romero <[email protected]>
+
+ * ppc_corenote.c: Add offsets for ppc64 HTM SPRs: thfar, tfiar,
+ and texasr.
+ * ppc_regs.c: Add names for ppc64 HTM SPRs mappings.
+
+2017-07-20 Mark Wielaard <[email protected]>
+
+ * aarch64_init.c (aarch64_init): Hook data_marker_symbol.
+ * aarch64_symbol.c (aarch64_data_marker_symbol): New function.
+ * arm_init.c (arm_init): Hook data_marker_symbol.
+ * arm_symbol.c (aarch64_data_marker_symbol): New function.
+
+2017-07-18 Mark Wielaard <[email protected]>
+
+ * Makefile.am (cpu_bpf): Always define.
+ * bpf_init.c (disasm): Always hook.
+ * bpf_regs.c: Include bpf.h instead of linux/bpf.h. Don't define
+ MAX_BPF_REG.
+
+2017-02-17 Ulf Hermann <[email protected]>
+
+ * Makefile.am: Add libeu.
+ (libebl_%so): Link with --no-undefined,-z,defs,-z,relro
+ and libeu.a.
+
+2017-06-17 Mark Wielaard <[email protected]>
+
+ * s390_initreg.c: Swap sys/ptrace.h and asm/ptrace.h include order.
+
+2017-06-15 Andreas Schwab <[email protected]>
+
+ * ppc_symbol.c (ppc_machine_flag_check): New function.
+ * ppc_init.c (ppc_init): Hook it.
+
+2017-05-30 Mark Wielaard <[email protected]>
+
+ * ppc64_unwind.c: New file.
+ * ppc64_init.c (pcc64_init): Hook unwind.
+ * Makefile.am (ppc64_SRCS): Add ppc64_unwind.c
+
2017-04-06 Mark Wielaard <[email protected]>
* i386_unwind.c: New file.
diff --git a/backends/Makefile.am b/backends/Makefile.am
index 96004dcc..03b9d201 100644
--- a/backends/Makefile.am
+++ b/backends/Makefile.am
@@ -46,6 +46,7 @@ lib_LIBRARIES = libebl_static_pic.a
libelf = ../libelf/libelf.so
libdw = ../libdw/libdw.so
+libeu = ../lib/libeu.a
# The following is minimal set of backends that we link with libdw to
# avoid dlopen. Note repeats files below because some backends reuse
@@ -64,7 +65,7 @@ static_SRCS = i386_init.c i386_symbol.c i386_corenote.c i386_cfi.c \
ppc_corenote.c ppc_auxv.c ppc_attrs.c ppc_syscall.c \
ppc_cfi.c ppc_initreg.c \
ppc64_init.c ppc64_symbol.c ppc64_retval.c ppc64_corenote.c \
- ppc64_resolve_sym.c \
+ ppc64_resolve_sym.c ppc64_unwind.c \
s390_init.c s390_symbol.c s390_regs.c s390_retval.c \
s390_corenote.c s390x_corenote.c s390_cfi.c s390_initreg.c \
s390_unwind.c bpf_init.c bpf_regs.c
@@ -124,7 +125,7 @@ am_libebl_ppc_pic_a_OBJECTS = $(ppc_SRCS:.c=.os)
ppc64_SRCS = ppc64_init.c ppc64_symbol.c ppc64_retval.c \
ppc64_corenote.c ppc_regs.c ppc_auxv.c ppc_attrs.c ppc_syscall.c \
- ppc_cfi.c ppc_initreg.c ppc64_resolve_sym.c
+ ppc_cfi.c ppc_initreg.c ppc64_unwind.c ppc64_resolve_sym.c
libebl_ppc64_pic_a_SOURCES = $(ppc64_SRCS)
am_libebl_ppc64_pic_a_OBJECTS = $(ppc64_SRCS:.c=.os)
@@ -145,24 +146,19 @@ libebl_m68k_pic_a_SOURCES = $(m68k_SRCS)
am_libebl_m68k_pic_a_OBJECTS = $(m68k_SRCS:.c=.os)
bpf_SRCS = bpf_init.c bpf_regs.c
-# The disam hook depends on this if we have linux/bpf.h.
-if HAVE_LINUX_BPF_H
cpu_bpf = ../libcpu/libcpu_bpf.a
-else
-cpu_bpf =
-endif
libebl_bpf_pic_a_SOURCES = $(bpf_SRCS)
am_libebl_bpf_pic_a_OBJECTS = $(bpf_SRCS:.c=.os)
-libebl_%.so libebl_%.map: libebl_%_pic.a $(libelf) $(libdw)
+libebl_%.so libebl_%.map: libebl_%_pic.a $(libelf) $(libdw) $(libeu)
@rm -f $(@:.so=.map)
$(AM_V_at)echo 'ELFUTILS_$(PACKAGE_VERSION) { global: $*_init; local: *; };' \
> $(@:.so=.map)
$(AM_V_CCLD)$(LINK) -shared -o $(@:.map=.so) \
-Wl,--whole-archive $< $(cpu_$*) -Wl,--no-whole-archive \
- -Wl,--version-script,$(@:.so=.map) \
- -Wl,-z,defs -Wl,--as-needed $(libelf) $(libdw)
+ -Wl,--version-script,$(@:.so=.map),--no-undefined \
+ -Wl,-z,defs,-z,relro -Wl,--as-needed $(libelf) $(libdw) $(libeu)
@$(textrel_check)
libebl_i386.so: $(cpu_i386)
diff --git a/backends/aarch64_init.c b/backends/aarch64_init.c
index 08664943..fad923fa 100644
--- a/backends/aarch64_init.c
+++ b/backends/aarch64_init.c
@@ -1,5 +1,5 @@
/* Initialization of AArch64 specific backend library.
- Copyright (C) 2013 Red Hat, Inc.
+ Copyright (C) 2013, 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
@@ -56,6 +56,7 @@ aarch64_init (Elf *elf __attribute__ ((unused)),
HOOK (eh, reloc_simple_type);
HOOK (eh, return_value_location);
HOOK (eh, check_special_symbol);
+ HOOK (eh, data_marker_symbol);
HOOK (eh, abi_cfi);
/* X0-X30 (31 regs) + SP + 1 Reserved + ELR, 30 Reserved regs (34-43)
diff --git a/backends/aarch64_symbol.c b/backends/aarch64_symbol.c
index 76999e4b..da3382e9 100644
--- a/backends/aarch64_symbol.c
+++ b/backends/aarch64_symbol.c
@@ -1,5 +1,5 @@
/* AArch64 specific symbolic name handling.
- Copyright (C) 2013, 2015 Red Hat, Inc.
+ Copyright (C) 2013, 2015, 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
@@ -90,3 +90,15 @@ aarch64_check_special_symbol (Elf *elf, GElf_Ehdr *ehdr, const GElf_Sym *sym,
return false;
}
+
+/* A data mapping symbol is a symbol with "$d" name or "$d.<any...>" name,
+ STT_NOTYPE, STB_LOCAL and st_size of zero. The indicate the stat of a
+ sequence of data items. */
+bool
+aarch64_data_marker_symbol (const GElf_Sym *sym, const char *sname)
+{
+ return (sym != NULL && sname != NULL
+ && sym->st_size == 0 && GELF_ST_BIND (sym->st_info) == STB_LOCAL
+ && GELF_ST_TYPE (sym->st_info) == STT_NOTYPE
+ && (strcmp (sname, "$d") == 0 || strncmp (sname, "$d.", 3) == 0));
+}
diff --git a/backends/arm_init.c b/backends/arm_init.c
index caadac65..f2b1b11e 100644
--- a/backends/arm_init.c
+++ b/backends/arm_init.c
@@ -1,5 +1,5 @@
/* Initialization of Arm specific backend library.
- Copyright (C) 2002, 2005, 2009, 2013, 2014, 2015 Red Hat, Inc.
+ Copyright (C) 2002, 2005, 2009, 2013, 2014, 2015, 2017 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <[email protected]>, 2002.
@@ -64,6 +64,7 @@ arm_init (Elf *elf __attribute__ ((unused)),
HOOK (eh, abi_cfi);
HOOK (eh, check_reloc_target_type);
HOOK (eh, symbol_type_name);
+ HOOK (eh, data_marker_symbol);
/* We only unwind the core integer registers. */
eh->frame_nregs = 16;
diff --git a/backends/arm_symbol.c b/backends/arm_symbol.c
index da4a50a7..3edda724 100644
--- a/backends/arm_symbol.c
+++ b/backends/arm_symbol.c
@@ -1,5 +1,5 @@
/* Arm specific symbolic name handling.
- Copyright (C) 2002-2009, 2014, 2015 Red Hat, Inc.
+ Copyright (C) 2002-2009, 2014, 2015, 2017 Red Hat, Inc.
This file is part of elfutils.
This file is free software; you can redistribute it and/or modify
@@ -32,6 +32,7 @@
#include <elf.h>
#include <stddef.h>
+#include <string.h>
#define BACKEND arm_
#include "libebl_CPU.h"
@@ -142,3 +143,15 @@ arm_symbol_type_name (int type,
}
return NULL;
}
+
+/* A data mapping symbol is a symbol with "$d" name or "$d.<any...>" name,
+ * STT_NOTYPE, STB_LOCAL and st_size of zero. The indicate the stat of a
+ * sequence of data items. */
+bool
+arm_data_marker_symbol (const GElf_Sym *sym, const char *sname)
+{
+ return (sym != NULL && sname != NULL
+ && sym->st_size == 0 && GELF_ST_BIND (sym->st_info) == STB_LOCAL
+ && GELF_ST_TYPE (sym->st_info) == STT_NOTYPE
+ && (strcmp (sname, "$d") == 0 || strncmp (sname, "$d.", 3) == 0));
+}
diff --git a/backends/bpf_init.c b/backends/bpf_init.c
index 22842e26..8ea1bc1a 100644
--- a/backends/bpf_init.c
+++ b/backends/bpf_init.c
@@ -52,9 +52,7 @@ bpf_init (Elf *elf __attribute__ ((unused)),
eh->name = "BPF";
bpf_init_reloc (eh);
HOOK (eh, register_info);
-#ifdef HAVE_LINUX_BPF_H
HOOK (eh, disasm);
-#endif
return MODVERSION;
}
diff --git a/backends/bpf_regs.c b/backends/bpf_regs.c
index 180af83b..1863a164 100644
--- a/backends/bpf_regs.c
+++ b/backends/bpf_regs.c
@@ -32,11 +32,7 @@
#include <stdio.h>
#include <string.h>
-#ifdef HAVE_LINUX_BPF_H
-#include <linux/bpf.h>
-#else
-#define MAX_BPF_REG 10
-#endif
+#include "bpf.h"
#define BACKEND bpf_
#include "libebl_CPU.h"
diff --git a/backends/ppc64_init.c b/backends/ppc64_init.c
index 11d3a77f..e5670338 100644
--- a/backends/ppc64_init.c
+++ b/backends/ppc64_init.c
@@ -73,6 +73,7 @@ ppc64_init (Elf *elf __attribute__ ((unused)),
eh->frame_nregs = (114 - 1) + 32;
HOOK (eh, set_initial_registers_tid);
HOOK (eh, dwarf_to_regno);
+ HOOK (eh, unwind);
HOOK (eh, resolve_sym_value);
/* Find the function descriptor .opd table for resolve_sym_value. */
diff --git a/backends/ppc64_unwind.c b/backends/ppc64_unwind.c
new file mode 100644
index 00000000..4fa0b5a9
--- /dev/null
+++ b/backends/ppc64_unwind.c
@@ -0,0 +1,76 @@
+/* Get previous frame state for an existing frame state.
+ Copyright (C) 2017 Red Hat, Inc.
+ This file is part of elfutils.
+
+ This file is free software; you can redistribute it and/or modify
+ it under the terms of either
+
+ * the GNU Lesser General Public License as published by the Free
+ Software Foundation; either version 3 of the License, or (at
+ your option) any later version
+
+ or
+
+ * the GNU General Public License as published by the Free
+ Software Foundation; either version 2 of the License, or (at
+ your option) any later version
+
+ or both in parallel, as here.
+
+ elfutils is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received copies of the GNU General Public License and
+ the GNU Lesser General Public License along with this program. If
+ not, see <http://www.gnu.org/licenses/>. */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#define BACKEND ppc64_
+
+#define LR_REG 65 /* Not 108, see ppc_dwarf_to_regno. */
+#define SP_REG 1
+
+#define LR_OFFSET 16
+
+#include "libebl_CPU.h"
+
+/* Simplistic fallback frame unwinder. SP points to the backchain (contains
+ address of previous stack pointer). At SP offset 16 is the LR save area
+ (contains the value of the previous LR). */
+
+bool
+EBLHOOK(unwind) (Ebl *ebl __attribute__ ((unused)),
+ Dwarf_Addr pc __attribute__ ((unused)),
+ ebl_tid_registers_t *setfunc, ebl_tid_registers_get_t *getfunc,
+ ebl_pid_memory_read_t *readfunc, void *arg,
+ bool *signal_framep __attribute__ ((unused)))
+{
+ Dwarf_Word sp, newSp, lr, newLr;
+
+ /* Stack pointer points to the backchain which contains the previous sp. */
+ if (! getfunc (SP_REG, 1, &sp, arg))
+ sp = 0;
+
+ /* Link register contains previous program counter. */
+ if (! getfunc (LR_REG, 1, &lr, arg)
+ || lr == 0
+ || ! setfunc (-1, 1, &lr, arg))
+ return false;
+
+ if (! readfunc(sp, &newSp, arg))
+ newSp = 0;
+
+ if (! readfunc(newSp + LR_OFFSET, &newLr, arg))
+ newLr = 0;
+
+ setfunc(SP_REG, 1, &newSp, arg);
+ setfunc(LR_REG, 1, &newLr, arg);
+
+ /* Sanity check the stack grows down. */
+ return newSp > sp;
+}
diff --git a/backends/ppc_corenote.c b/backends/ppc_corenote.c
index 9ac88712..2b4ada7a 100644
--- a/backends/ppc_corenote.c
+++ b/backends/ppc_corenote.c
@@ -94,9 +94,20 @@ static const Ebl_Register_Location spe_regs[] =
{ .offset = 34 * 4, .regno = 612, .count = 1, .bits = 32 }
};
+static const Ebl_Register_Location tm_spr_regs[] =
+ {
+ /* tfhar */
+ { .offset = 0, .regno = 114, .count = 1, .bits = 64 },
+ /* texasr */
+ { .offset = 8, .regno = 116, .count = 1, .bits = 64 },
+ /* tfiar */
+ { .offset = 16, .regno = 115, .count = 1, .bits = 64 }
+ };
+
#define EXTRA_NOTES \
EXTRA_REGSET (NT_PPC_VMX, 34 * 16, altivec_regs) \
- EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs)
+ EXTRA_REGSET (NT_PPC_SPE, 35 * 4, spe_regs) \
+ EXTRA_REGSET (NT_PPC_TM_SPR, 3 * 8, tm_spr_regs)
#if BITS == 32
# define ULONG uint32_t
diff --git a/backends/ppc_init.c b/backends/ppc_init.c
index c3e3ca36..aea9f2d7 100644
--- a/backends/ppc_init.c
+++ b/backends/ppc_init.c
@@ -53,6 +53,7 @@ ppc_init (Elf *elf __attribute__ ((unused)),
eh->name = "PowerPC";
ppc_init_reloc (eh);
HOOK (eh, reloc_simple_type);
+ HOOK (eh, machine_flag_check);
HOOK (eh, dynamic_tag_name);
HOOK (eh, dynamic_tag_check);
HOOK (eh, check_special_symbol);
diff --git a/backends/ppc_regs.c b/backends/ppc_regs.c
index bcf4f7a3..c2d50118 100644
--- a/backends/ppc_regs.c
+++ b/backends/ppc_regs.c
@@ -149,7 +149,15 @@ ppc_register_info (Ebl *ebl __attribute__ ((unused)),
namelen = 4;
break;
- case 110 ... 117:
+ case 114:
+ return stpcpy (name, "tfhar") + 1 - name;
+ case 115:
+ return stpcpy (name, "tfiar") + 1 - name;
+ case 116:
+ return stpcpy (name, "texasr") + 1 - name;
+
+ case 110 ... 113:
+ case 117:
case 120 ... 121:
case 123 ... 199:
name[0] = 's';
diff --git a/backends/ppc_symbol.c b/backends/ppc_symbol.c
index 1273c1d2..4b32003a 100644
--- a/backends/ppc_symbol.c
+++ b/backends/ppc_symbol.c
@@ -57,6 +57,16 @@ ppc_reloc_simple_type (Ebl *ebl __attribute__ ((unused)), int type)
}
+/* Check whether machine flags are valid. */
+bool
+ppc_machine_flag_check (GElf_Word flags)
+{
+ return ((flags &~ (EF_PPC_EMB
+ | EF_PPC_RELOCATABLE
+ | EF_PPC_RELOCATABLE_LIB)) == 0);
+}
+
+
const char *
ppc_dynamic_tag_name (int64_t tag, char *buf __attribute__ ((unused)),
size_t len __attribute__ ((unused)))
diff --git a/backends/s390_initreg.c b/backends/s390_initreg.c
index 011305ce..23bf8edc 100644
--- a/backends/s390_initreg.c
+++ b/backends/s390_initreg.c
@@ -34,8 +34,8 @@
#include <assert.h>
#if defined(__s390__) && defined(__linux__)
# include <sys/user.h>
-# include <asm/ptrace.h>
# include <sys/ptrace.h>
+# include <asm/ptrace.h>
#endif
#define BACKEND s390_
diff --git a/backends/sparc_reloc.def b/backends/sparc_reloc.def
index ce0b5556..7cd5ce96 100644
--- a/backends/sparc_reloc.def
+++ b/backends/sparc_reloc.def
@@ -110,9 +110,9 @@ RELOC_TYPE (TLS_TPOFF32, DYN)
RELOC_TYPE (TLS_TPOFF64, DYN)
RELOC_TYPE (GOTDATA_HIX22, REL)
RELOC_TYPE (GOTDATA_LOX10, REL)
-RELOC_TYPE (GOTDATA_OP_HIX22, DYN)
-RELOC_TYPE (GOTDATA_OP_LOX10, DYN)
-RELOC_TYPE (GOTDATA_OP, DYN)
+RELOC_TYPE (GOTDATA_OP_HIX22, REL|DYN)
+RELOC_TYPE (GOTDATA_OP_LOX10, REL|DYN)
+RELOC_TYPE (GOTDATA_OP, REL|DYN)
RELOC_TYPE (H34, REL)
RELOC_TYPE (SIZE32, REL)
RELOC_TYPE (SIZE64, REL)
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-17 09:26:53 +0000