/* Frame unwinder for frames with DWARF Call Frame Information.
- Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
Contributed by Mark Kettenis.
gdb_byte *initial_instructions;
gdb_byte *end;
+ /* Saved augmentation, in case it's needed later. */
+ char *augmentation;
+
/* Encoding of addresses. */
gdb_byte encoding;
/* True if an 'S' augmentation existed. */
unsigned char signal_frame;
+ /* The version recorded in the CIE. */
+ unsigned char version;
+
struct dwarf2_cie *next;
};
};
static struct dwarf2_fde *dwarf2_frame_find_fde (CORE_ADDR *pc);
+
+static int dwarf2_frame_adjust_regnum (struct gdbarch *gdbarch, int regnum,
+ int eh_frame_p);
\f
/* Structure describing a frame state. */
LONGEST data_align;
ULONGEST code_align;
ULONGEST retaddr_column;
+
+ /* Flags for known producer quirks. */
+
+ /* The ARM compilers, in DWARF2 mode, assume that DW_CFA_def_cfa
+ and DW_CFA_def_cfa_offset takes a factored offset. */
+ int armcc_cfa_offsets_sf;
+
+ /* The ARM compilers, in DWARF2 or DWARF3 mode, may assume that
+ the CFA is defined as REG - OFFSET rather than REG + OFFSET. */
+ int armcc_cfa_offsets_reversed;
};
/* Store the length the expression for the CFA in the `cfa_reg' field,
which is unused in that case. */
#define cfa_exp_len cfa_reg
-/* Assert that the register set RS is large enough to store NUM_REGS
+/* Assert that the register set RS is large enough to store gdbarch_num_regs
columns. If necessary, enlarge the register set. */
static void
int regnum;
gdb_byte *buf;
- regnum = DWARF2_REG_TO_REGNUM (reg);
+ regnum = gdbarch_dwarf2_reg_to_regnum (current_gdbarch, reg);
buf = alloca (register_size (gdbarch, regnum));
frame_unwind_register (next_frame, regnum, buf);
else if ((insn & 0xc0) == DW_CFA_offset)
{
reg = insn & 0x3f;
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
offset = utmp * fs->data_align;
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
{
gdb_assert (fs->initial.reg);
reg = insn & 0x3f;
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
if (reg < fs->initial.num_regs)
fs->regs.reg[reg] = fs->initial.reg[reg];
complaint (&symfile_complaints, _("\
incomplete CFI data; DW_CFA_restore unspecified\n\
register %s (#%d) at 0x%s"),
- REGISTER_NAME(DWARF2_REG_TO_REGNUM(reg)),
- DWARF2_REG_TO_REGNUM(reg), paddr (fs->pc));
+ gdbarch_register_name
+ (current_gdbarch, gdbarch_dwarf2_reg_to_regnum
+ (current_gdbarch, reg)),
+ gdbarch_dwarf2_reg_to_regnum (current_gdbarch, reg),
+ paddr (fs->pc));
}
else
{
case DW_CFA_offset_extended:
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
offset = utmp * fs->data_align;
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
case DW_CFA_restore_extended:
gdb_assert (fs->initial.reg);
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
fs->regs.reg[reg] = fs->initial.reg[reg];
break;
case DW_CFA_undefined:
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
fs->regs.reg[reg].how = DWARF2_FRAME_REG_UNDEFINED;
break;
case DW_CFA_same_value:
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAME_VALUE;
break;
case DW_CFA_register:
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
- if (eh_frame_p)
- utmp = dwarf2_frame_eh_frame_regnum (gdbarch, utmp);
+ utmp = dwarf2_frame_adjust_regnum (gdbarch, utmp, eh_frame_p);
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_REG;
fs->regs.reg[reg].loc.reg = utmp;
case DW_CFA_def_cfa:
insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_reg);
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
+
+ if (fs->armcc_cfa_offsets_sf)
+ utmp *= fs->data_align;
+
fs->cfa_offset = utmp;
fs->cfa_how = CFA_REG_OFFSET;
break;
case DW_CFA_def_cfa_register:
insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_reg);
- if (eh_frame_p)
- fs->cfa_reg = dwarf2_frame_eh_frame_regnum (gdbarch,
- fs->cfa_reg);
+ fs->cfa_reg = dwarf2_frame_adjust_regnum (gdbarch, fs->cfa_reg,
+ eh_frame_p);
fs->cfa_how = CFA_REG_OFFSET;
break;
case DW_CFA_def_cfa_offset:
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
+
+ if (fs->armcc_cfa_offsets_sf)
+ utmp *= fs->data_align;
+
fs->cfa_offset = utmp;
/* cfa_how deliberately not set. */
break;
case DW_CFA_expression:
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
fs->regs.reg[reg].loc.exp = insn_ptr;
case DW_CFA_offset_extended_sf:
insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
- if (eh_frame_p)
- reg = dwarf2_frame_eh_frame_regnum (gdbarch, reg);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
insn_ptr = read_sleb128 (insn_ptr, insn_end, &offset);
offset *= fs->data_align;
dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
fs->regs.reg[reg].loc.offset = offset;
break;
+ case DW_CFA_val_offset:
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
+ dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
+ offset = utmp * fs->data_align;
+ fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_VAL_OFFSET;
+ fs->regs.reg[reg].loc.offset = offset;
+ break;
+
+ case DW_CFA_val_offset_sf:
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
+ dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
+ insn_ptr = read_sleb128 (insn_ptr, insn_end, &offset);
+ offset *= fs->data_align;
+ fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_VAL_OFFSET;
+ fs->regs.reg[reg].loc.offset = offset;
+ break;
+
+ case DW_CFA_val_expression:
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
+ dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
+ fs->regs.reg[reg].loc.exp = insn_ptr;
+ fs->regs.reg[reg].exp_len = utmp;
+ fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_VAL_EXP;
+ insn_ptr += utmp;
+ break;
+
case DW_CFA_def_cfa_sf:
insn_ptr = read_uleb128 (insn_ptr, insn_end, &fs->cfa_reg);
- if (eh_frame_p)
- fs->cfa_reg = dwarf2_frame_eh_frame_regnum (gdbarch,
- fs->cfa_reg);
+ fs->cfa_reg = dwarf2_frame_adjust_regnum (gdbarch, fs->cfa_reg,
+ eh_frame_p);
insn_ptr = read_sleb128 (insn_ptr, insn_end, &offset);
fs->cfa_offset = offset * fs->data_align;
fs->cfa_how = CFA_REG_OFFSET;
insn_ptr = read_uleb128 (insn_ptr, insn_end, &utmp);
break;
+ case DW_CFA_GNU_negative_offset_extended:
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, ®);
+ reg = dwarf2_frame_adjust_regnum (gdbarch, reg, eh_frame_p);
+ insn_ptr = read_uleb128 (insn_ptr, insn_end, &offset);
+ offset *= fs->data_align;
+ dwarf2_frame_state_alloc_regs (&fs->regs, reg + 1);
+ fs->regs.reg[reg].how = DWARF2_FRAME_REG_SAVED_OFFSET;
+ fs->regs.reg[reg].loc.offset = -offset;
+ break;
+
default:
internal_error (__FILE__, __LINE__, _("Unknown CFI encountered."));
}
trampoline. */
int (*signal_frame_p) (struct gdbarch *, struct frame_info *);
- /* Convert .eh_frame register number to DWARF register number. */
- int (*eh_frame_regnum) (struct gdbarch *, int);
+ /* Convert .eh_frame register number to DWARF register number, or
+ adjust .debug_frame register number. */
+ int (*adjust_regnum) (struct gdbarch *, int, int);
};
/* Default architecture-specific register state initialization
(e.g. IBM S/390 and zSeries). Those architectures should provide
their own architecture-specific initialization function. */
- if (regnum == PC_REGNUM)
+ if (regnum == gdbarch_pc_regnum (current_gdbarch))
reg->how = DWARF2_FRAME_REG_RA;
- else if (regnum == SP_REGNUM)
+ else if (regnum == gdbarch_sp_regnum (current_gdbarch))
reg->how = DWARF2_FRAME_REG_CFA;
}
return ops->signal_frame_p (gdbarch, next_frame);
}
-/* Set the architecture-specific mapping of .eh_frame register numbers to
- DWARF register numbers. */
+/* Set the architecture-specific adjustment of .eh_frame and .debug_frame
+ register numbers. */
void
-dwarf2_frame_set_eh_frame_regnum (struct gdbarch *gdbarch,
- int (*eh_frame_regnum) (struct gdbarch *,
- int))
+dwarf2_frame_set_adjust_regnum (struct gdbarch *gdbarch,
+ int (*adjust_regnum) (struct gdbarch *,
+ int, int))
{
struct dwarf2_frame_ops *ops = gdbarch_data (gdbarch, dwarf2_frame_data);
- ops->eh_frame_regnum = eh_frame_regnum;
+ ops->adjust_regnum = adjust_regnum;
}
-/* Translate a .eh_frame register to DWARF register. */
+/* Translate a .eh_frame register to DWARF register, or adjust a .debug_frame
+ register. */
-int
-dwarf2_frame_eh_frame_regnum (struct gdbarch *gdbarch, int regnum)
+static int
+dwarf2_frame_adjust_regnum (struct gdbarch *gdbarch, int regnum, int eh_frame_p)
{
struct dwarf2_frame_ops *ops = gdbarch_data (gdbarch, dwarf2_frame_data);
- if (ops->eh_frame_regnum == NULL)
+ if (ops->adjust_regnum == NULL)
return regnum;
- return ops->eh_frame_regnum (gdbarch, regnum);
+ return ops->adjust_regnum (gdbarch, regnum, eh_frame_p);
+}
+
+static void
+dwarf2_frame_find_quirks (struct dwarf2_frame_state *fs,
+ struct dwarf2_fde *fde)
+{
+ static const char *arm_idents[] = {
+ "ARM C Compiler, ADS",
+ "Thumb C Compiler, ADS",
+ "ARM C++ Compiler, ADS",
+ "Thumb C++ Compiler, ADS",
+ "ARM/Thumb C/C++ Compiler, RVCT"
+ };
+ int i;
+
+ struct symtab *s;
+
+ s = find_pc_symtab (fs->pc);
+ if (s == NULL || s->producer == NULL)
+ return;
+
+ for (i = 0; i < ARRAY_SIZE (arm_idents); i++)
+ if (strncmp (s->producer, arm_idents[i], strlen (arm_idents[i])) == 0)
+ {
+ if (fde->cie->version == 1)
+ fs->armcc_cfa_offsets_sf = 1;
+
+ if (fde->cie->version == 1)
+ fs->armcc_cfa_offsets_reversed = 1;
+
+ /* The reversed offset problem is present in some compilers
+ using DWARF3, but it was eventually fixed. Check the ARM
+ defined augmentations, which are in the format "armcc" followed
+ by a list of one-character options. The "+" option means
+ this problem is fixed (no quirk needed). If the armcc
+ augmentation is missing, the quirk is needed. */
+ if (fde->cie->version == 3
+ && (strncmp (fde->cie->augmentation, "armcc", 5) != 0
+ || strchr (fde->cie->augmentation + 5, '+') == NULL))
+ fs->armcc_cfa_offsets_reversed = 1;
+
+ return;
+ }
}
\f
{
struct cleanup *old_chain;
struct gdbarch *gdbarch = get_frame_arch (next_frame);
- const int num_regs = NUM_REGS + NUM_PSEUDO_REGS;
+ const int num_regs = gdbarch_num_regs (current_gdbarch)
+ + gdbarch_num_pseudo_regs (current_gdbarch);
struct dwarf2_frame_cache *cache;
struct dwarf2_frame_state *fs;
struct dwarf2_fde *fde;
frame_unwind_address_in_block does just this. It's not clear how
reliable the method is though; there is the potential for the
register state pre-call being different to that on return. */
- fs->pc = frame_unwind_address_in_block (next_frame);
+ fs->pc = frame_unwind_address_in_block (next_frame, NORMAL_FRAME);
/* Find the correct FDE. */
fde = dwarf2_frame_find_fde (&fs->pc);
fs->code_align = fde->cie->code_alignment_factor;
fs->retaddr_column = fde->cie->return_address_register;
+ /* Check for "quirks" - known bugs in producers. */
+ dwarf2_frame_find_quirks (fs, fde);
+
/* First decode all the insns in the CIE. */
execute_cfa_program (fde->cie->initial_instructions,
fde->cie->end, next_frame, fs, fde->eh_frame_p);
{
case CFA_REG_OFFSET:
cache->cfa = read_reg (next_frame, fs->cfa_reg);
- cache->cfa += fs->cfa_offset;
+ if (fs->armcc_cfa_offsets_reversed)
+ cache->cfa -= fs->cfa_offset;
+ else
+ cache->cfa += fs->cfa_offset;
break;
case CFA_EXP:
return address column; it's perfectly all right for it to
correspond to a real register. If it doesn't correspond to a
real register, or if we shouldn't treat it as such,
- DWARF2_REG_TO_REGNUM should be defined to return a number outside
- the range [0, NUM_REGS). */
+ gdbarch_dwarf2_reg_to_regnum should be defined to return a number outside
+ the range [0, gdbarch_num_regs). */
{
int column; /* CFI speak for "register number". */
for (column = 0; column < fs->regs.num_regs; column++)
{
/* Use the GDB register number as the destination index. */
- int regnum = DWARF2_REG_TO_REGNUM (column);
+ int regnum = gdbarch_dwarf2_reg_to_regnum (current_gdbarch, column);
/* If there's no corresponding GDB register, ignore it. */
if (regnum < 0 || regnum >= num_regs)
if (cache->undefined_retaddr)
return;
- (*this_id) = frame_id_build (cache->cfa, frame_func_unwind (next_frame));
+ (*this_id) = frame_id_build (cache->cfa,
+ frame_func_unwind (next_frame, NORMAL_FRAME));
+}
+
+static void
+dwarf2_signal_frame_this_id (struct frame_info *next_frame, void **this_cache,
+ struct frame_id *this_id)
+{
+ struct dwarf2_frame_cache *cache =
+ dwarf2_frame_cache (next_frame, this_cache);
+
+ if (cache->undefined_retaddr)
+ return;
+
+ (*this_id) = frame_id_build (cache->cfa,
+ frame_func_unwind (next_frame, SIGTRAMP_FRAME));
}
static void
*optimizedp = 0;
*lvalp = lval_register;
*addrp = 0;
- *realnump = DWARF2_REG_TO_REGNUM (cache->reg[regnum].loc.reg);
+ *realnump = gdbarch_dwarf2_reg_to_regnum
+ (current_gdbarch, cache->reg[regnum].loc.reg);
if (valuep)
frame_unwind_register (next_frame, (*realnump), valuep);
break;
}
break;
+ case DWARF2_FRAME_REG_SAVED_VAL_OFFSET:
+ *optimizedp = 0;
+ *lvalp = not_lval;
+ *addrp = 0;
+ *realnump = -1;
+ if (valuep)
+ store_unsigned_integer (valuep, register_size (gdbarch, regnum),
+ cache->cfa + cache->reg[regnum].loc.offset);
+ break;
+
+ case DWARF2_FRAME_REG_SAVED_VAL_EXP:
+ *optimizedp = 0;
+ *lvalp = not_lval;
+ *addrp = 0;
+ *realnump = -1;
+ if (valuep)
+ store_unsigned_integer (valuep, register_size (gdbarch, regnum),
+ execute_stack_op (cache->reg[regnum].loc.exp,
+ cache->reg[regnum].exp_len,
+ next_frame, cache->cfa));
+ break;
+
case DWARF2_FRAME_REG_UNSPECIFIED:
/* GCC, in its infinite wisdom decided to not provide unwind
information for registers that are "same value". Since
*addrp = 0;
*realnump = -1;
if (valuep)
- {
- /* Store the value. */
- store_typed_address (valuep, builtin_type_void_data_ptr, cache->cfa);
- }
+ pack_long (valuep, register_type (gdbarch, regnum), cache->cfa);
break;
case DWARF2_FRAME_REG_CFA_OFFSET:
*addrp = 0;
*realnump = -1;
if (valuep)
- {
- /* Store the value. */
- store_typed_address (valuep, builtin_type_void_data_ptr,
- cache->cfa + cache->reg[regnum].loc.offset);
- }
+ pack_long (valuep, register_type (gdbarch, regnum),
+ cache->cfa + cache->reg[regnum].loc.offset);
break;
case DWARF2_FRAME_REG_RA_OFFSET:
{
CORE_ADDR pc = cache->reg[regnum].loc.offset;
- regnum = DWARF2_REG_TO_REGNUM (cache->retaddr_reg.loc.reg);
+ regnum = gdbarch_dwarf2_reg_to_regnum
+ (current_gdbarch, cache->retaddr_reg.loc.reg);
pc += frame_unwind_register_unsigned (next_frame, regnum);
- store_typed_address (valuep, builtin_type_void_func_ptr, pc);
+ pack_long (valuep, register_type (gdbarch, regnum), pc);
}
break;
static const struct frame_unwind dwarf2_signal_frame_unwind =
{
SIGTRAMP_FRAME,
- dwarf2_frame_this_id,
+ dwarf2_signal_frame_this_id,
dwarf2_frame_prev_register
};
{
/* Grab an address that is guarenteed to reside somewhere within the
function. frame_pc_unwind(), for a no-return next function, can
- end up returning something past the end of this function's body. */
- CORE_ADDR block_addr = frame_unwind_address_in_block (next_frame);
+ end up returning something past the end of this function's body.
+ If the frame we're sniffing for is a signal frame whose start
+ address is placed on the stack by the OS, its FDE must
+ extend one byte before its start address or we will miss it. */
+ CORE_ADDR block_addr = frame_unwind_address_in_block (next_frame,
+ NORMAL_FRAME);
struct dwarf2_fde *fde = dwarf2_frame_find_fde (&block_addr);
if (!fde)
return NULL;
const struct frame_base *
dwarf2_frame_base_sniffer (struct frame_info *next_frame)
{
- CORE_ADDR pc = frame_pc_unwind (next_frame);
- if (dwarf2_frame_find_fde (&pc))
+ CORE_ADDR block_addr = frame_unwind_address_in_block (next_frame,
+ NORMAL_FRAME);
+ if (dwarf2_frame_find_fde (&block_addr))
return &dwarf2_frame_base;
return NULL;
base = 0;
break;
case DW_EH_PE_pcrel:
- base = bfd_get_section_vma (unit->bfd, unit->dwarf_frame_section);
+ base = bfd_get_section_vma (unit->abfd, unit->dwarf_frame_section);
base += (buf - unit->dwarf_frame_buffer);
break;
case DW_EH_PE_datarel:
}
if ((encoding & 0x07) == 0x00)
- encoding |= encoding_for_size (ptr_len);
+ {
+ encoding |= encoding_for_size (ptr_len);
+ if (bfd_get_sign_extend_vma (unit->abfd))
+ encoding |= DW_EH_PE_signed;
+ }
switch (encoding & 0x0f)
{
cie_version = read_1_byte (unit->abfd, buf);
if (cie_version != 1 && cie_version != 3)
return NULL;
+ cie->version = cie_version;
buf += 1;
/* Interpret the interesting bits of the augmentation. */
- augmentation = (char *) buf;
+ cie->augmentation = augmentation = (char *) buf;
buf += (strlen (augmentation) + 1);
+ /* Ignore armcc augmentations. We only use them for quirks,
+ and that doesn't happen until later. */
+ if (strncmp (augmentation, "armcc", 5) == 0)
+ augmentation += strlen (augmentation);
+
/* The GCC 2.x "eh" augmentation has a pointer immediately
following the augmentation string, so it must be handled
first. */
else
cie->return_address_register = read_unsigned_leb128 (unit->abfd, buf,
&bytes_read);
- if (eh_frame_p)
- cie->return_address_register
- = dwarf2_frame_eh_frame_regnum (current_gdbarch,
- cie->return_address_register);
+ cie->return_address_register
+ = dwarf2_frame_adjust_regnum (current_gdbarch,
+ cie->return_address_register,
+ eh_frame_p);
buf += bytes_read;
augmentation++;
}
- /* Otherwise we have an unknown augmentation.
- Bail out unless we saw a 'z' prefix. */
+ /* Otherwise we have an unknown augmentation. Assume that either
+ there is no augmentation data, or we saw a 'z' prefix. */
else
{
- if (cie->initial_instructions == NULL)
- return end;
-
- /* Skip unknown augmentations. */
- buf = cie->initial_instructions;
+ if (cie->initial_instructions)
+ buf = cie->initial_instructions;
break;
}
}
projects / deliverable / binutils-gdb.git / blobdiff