#define tc_cfi_frame_initial_instructions() ((void)0)
#endif
+#ifndef tc_cfi_startproc
+# define tc_cfi_startproc() ((void)0)
+#endif
+
+#ifndef tc_cfi_endproc
+# define tc_cfi_endproc(fde) ((void) (fde))
+#endif
+
#ifndef DWARF2_FORMAT
#define DWARF2_FORMAT(SEC) dwarf2_format_32bit
#endif
#define DWARF2_ADDR_SIZE(bfd) (bfd_arch_bits_per_address (bfd) / 8)
#endif
+#if SUPPORT_FRAME_LINKONCE
+#define CUR_SEG(structp) structp->cur_seg
+#define SET_CUR_SEG(structp, seg) structp->cur_seg = seg
+#define HANDLED(structp) structp->handled
+#define SET_HANDLED(structp, val) structp->handled = val
+#else
+#define CUR_SEG(structp) NULL
+#define SET_CUR_SEG(structp, seg) (void) (0 && seg)
+#define HANDLED(structp) 0
+#define SET_HANDLED(structp, val) (void) (0 && val)
+#endif
+
/* Private segment collection list. */
struct dwcfi_seg_list
{
static segT
is_now_linkonce_segment (void)
{
-#if defined (TE_PE) || defined (TE_PEP)
if ((bfd_get_section_flags (stdoutput, now_seg)
& (SEC_LINK_ONCE | SEC_LINK_DUPLICATES_DISCARD
| SEC_LINK_DUPLICATES_ONE_ONLY | SEC_LINK_DUPLICATES_SAME_SIZE
| SEC_LINK_DUPLICATES_SAME_CONTENTS)) != 0)
return now_seg;
-#endif
return NULL;
}
expressionS exp;
};
-struct cfi_insn_data
-{
- struct cfi_insn_data *next;
- segT cur_seg;
- int insn;
- union
- {
- struct
- {
- unsigned reg;
- offsetT offset;
- } ri;
-
- struct
- {
- unsigned reg1;
- unsigned reg2;
- } rr;
-
- unsigned r;
- offsetT i;
-
- struct
- {
- symbolS *lab1;
- symbolS *lab2;
- } ll;
-
- struct cfi_escape_data *esc;
-
- struct
- {
- unsigned reg, encoding;
- expressionS exp;
- } ea;
- } u;
-};
-
-struct fde_entry
-{
- struct fde_entry *next;
- segT cseg;
- symbolS *start_address;
- symbolS *end_address;
- struct cfi_insn_data *data;
- struct cfi_insn_data **last;
- unsigned char per_encoding;
- unsigned char lsda_encoding;
- expressionS personality;
- expressionS lsda;
- unsigned int return_column;
- unsigned int signal_frame;
- int handled;
-};
-
struct cie_entry
{
struct cie_entry *next;
+#if SUPPORT_FRAME_LINKONCE
segT cur_seg;
+#endif
symbolS *start_address;
unsigned int return_column;
unsigned int signal_frame;
/* List of FDE entries. */
-static struct fde_entry *all_fde_data;
+struct fde_entry *all_fde_data;
static struct fde_entry **last_fde_data = &all_fde_data;
/* List of CIEs so that they could be reused. */
frchain_now->frch_cfi_data->cur_fde_data = fde;
*last_fde_data = fde;
last_fde_data = &fde->next;
- fde->cseg = is_now_linkonce_segment ();
- fde->handled = 0;
+ SET_CUR_SEG (fde, is_now_linkonce_segment ());
+ SET_HANDLED (fde, 0);
fde->last = &fde->data;
fde->return_column = DWARF2_DEFAULT_RETURN_COLUMN;
fde->per_encoding = DW_EH_PE_omit;
*cur_fde_data->last = insn;
cur_fde_data->last = &insn->next;
- insn->cur_seg = is_now_linkonce_segment ();
-
+ SET_CUR_SEG (insn, is_now_linkonce_segment ());
return insn;
}
static void dot_cfi_lsda (int);
static void dot_cfi_val_encoded_addr (int);
-/* Fake CFI type; outside the byte range of any real CFI insn. */
-#define CFI_adjust_cfa_offset 0x100
-#define CFI_return_column 0x101
-#define CFI_rel_offset 0x102
-#define CFI_escape 0x103
-#define CFI_signal_frame 0x104
-#define CFI_val_encoded_addr 0x105
-
const pseudo_typeS cfi_pseudo_table[] =
{
{ "cfi_sections", dot_cfi_sections, 0 },
/* By default emit .eh_frame only, not .debug_frame. */
#define CFI_EMIT_eh_frame (1 << 0)
#define CFI_EMIT_debug_frame (1 << 1)
+#define CFI_EMIT_target (1 << 2)
static int cfi_sections = CFI_EMIT_eh_frame;
static void
sections |= CFI_EMIT_eh_frame;
else if (strncmp (name, ".debug_frame", sizeof ".debug_frame") == 0)
sections |= CFI_EMIT_debug_frame;
+#ifdef tc_cfi_section_name
+ else if (strcmp (name, tc_cfi_section_name) == 0)
+ sections |= CFI_EMIT_target;
+#endif
else
{
*input_line_pointer = c;
frchain_now->frch_cfi_data->cur_cfa_offset = 0;
if (!simple)
tc_cfi_frame_initial_instructions ();
+
+ if ((cfi_sections & CFI_EMIT_target) != 0)
+ tc_cfi_startproc ();
}
static void
dot_cfi_endproc (int ignored ATTRIBUTE_UNUSED)
{
+ struct fde_entry *fde;
+
if (frchain_now->frch_cfi_data == NULL)
{
as_bad (_(".cfi_endproc without corresponding .cfi_startproc"));
return;
}
+ fde = frchain_now->frch_cfi_data->cur_fde_data;
+
cfi_end_fde (symbol_temp_new_now ());
demand_empty_rest_of_line ();
+
+ if ((cfi_sections & CFI_EMIT_target) != 0)
+ tc_cfi_endproc (fde);
}
\f
{
for (i = cie->first; i != cie->last; i = i->next)
{
- if (i->cur_seg != cie->cur_seg)
+ if (CUR_SEG (i) != CUR_SEG (cie))
continue;
output_cfi_insn (i);
}
}
for (; first; first = first->next)
- {
- if (first->cur_seg == fde->cseg)
- output_cfi_insn (first);
- }
+ if (CUR_SEG (first) == CUR_SEG (fde))
+ output_cfi_insn (first);
frag_align (align, DW_CFA_nop, 0);
symbol_set_value_now (end_address);
for (cie = cie_root; cie; cie = cie->next)
{
- if (cie->cur_seg != fde->cseg
- || cie->return_column != fde->return_column
+ if (CUR_SEG (cie) != CUR_SEG (fde))
+ continue;
+ if (cie->return_column != fde->return_column
|| cie->signal_frame != fde->signal_frame
|| cie->per_encoding != fde->per_encoding
|| cie->lsda_encoding != fde->lsda_encoding)
cie = (struct cie_entry *) xmalloc (sizeof (struct cie_entry));
cie->next = cie_root;
cie_root = cie;
- cie->cur_seg = fde->cseg;
+ SET_CUR_SEG (cie, CUR_SEG (fde));
cie->return_column = fde->return_column;
cie->signal_frame = fde->signal_frame;
cie->per_encoding = fde->per_encoding;
{
for (; insn; insn = insn->next)
{
- if (insn->cur_seg != ccseg)
+ if (CUR_SEG (insn) != ccseg)
continue;
switch (insn->insn)
{
static segT
get_cfi_seg (segT cseg, const char *base, flagword flags, int align)
{
- struct dwcfi_seg_list *l;
+ if (SUPPORT_FRAME_LINKONCE)
+ {
+ struct dwcfi_seg_list *l;
- l = dwcfi_hash_find_or_make (cseg, base, flags);
+ l = dwcfi_hash_find_or_make (cseg, base, flags);
- subseg_set (l->seg, l->subseg);
- record_alignment (l->seg, align);
- return l->seg;
+ cseg = l->seg;
+ subseg_set (cseg, l->subseg);
+ }
+ else
+ {
+ cseg = subseg_new (base, 0);
+ bfd_set_section_flags (stdoutput, cseg, flags);
+ }
+ record_alignment (cseg, align);
+ return cseg;
}
void
save_flag_traditional_format = flag_traditional_format;
flag_traditional_format = 1;
+ if (!SUPPORT_FRAME_LINKONCE)
+ {
+ /* Open .eh_frame section. */
+ cfi_seg = get_cfi_seg (NULL, ".eh_frame",
+ (SEC_ALLOC | SEC_LOAD | SEC_DATA
+ | DWARF2_EH_FRAME_READ_ONLY),
+ EH_FRAME_ALIGNMENT);
+#ifdef md_fix_up_eh_frame
+ md_fix_up_eh_frame (cfi_seg);
+#else
+ (void) cfi_seg;
+#endif
+ }
+
do
{
ccseg = NULL;
- cfi_seg = NULL;
seek_next_seg = 0;
+
for (cie = cie_root; cie; cie = cie_next)
{
cie_next = cie->next;
for (fde = all_fde_data; fde ; fde = fde->next)
{
- if (fde->handled != 0)
- continue;
- if (seek_next_seg && fde->cseg != ccseg)
- {
- seek_next_seg = 2;
- continue;
- }
- if (!seek_next_seg)
- {
- ccseg = fde->cseg;
- /* Open .eh_frame section. */
- cfi_seg = get_cfi_seg (ccseg, ".eh_frame",
- SEC_ALLOC | SEC_LOAD | SEC_DATA
- | DWARF2_EH_FRAME_READ_ONLY,
- EH_FRAME_ALIGNMENT);
+ if (SUPPORT_FRAME_LINKONCE)
+ {
+ if (HANDLED (fde))
+ continue;
+ if (seek_next_seg && CUR_SEG (fde) != ccseg)
+ {
+ seek_next_seg = 2;
+ continue;
+ }
+ if (!seek_next_seg)
+ {
+ ccseg = CUR_SEG (fde);
+ /* Open .eh_frame section. */
+ cfi_seg = get_cfi_seg (ccseg, ".eh_frame",
+ (SEC_ALLOC | SEC_LOAD | SEC_DATA
+ | DWARF2_EH_FRAME_READ_ONLY),
+ EH_FRAME_ALIGNMENT);
#ifdef md_fix_up_eh_frame
- md_fix_up_eh_frame (cfi_seg);
+ md_fix_up_eh_frame (cfi_seg);
+#else
+ (void) cfi_seg;
#endif
- seek_next_seg = 1;
+ seek_next_seg = 1;
+ }
+ SET_HANDLED (fde, 1);
}
- fde->handled = 1;
if (fde->end_address == NULL)
{
fde->next == NULL ? EH_FRAME_ALIGNMENT : 2);
}
}
- while (seek_next_seg == 2);
+ while (SUPPORT_FRAME_LINKONCE && seek_next_seg == 2);
- for (fde = all_fde_data; fde ; fde = fde->next)
- fde->handled = 0;
+ if (SUPPORT_FRAME_LINKONCE)
+ for (fde = all_fde_data; fde ; fde = fde->next)
+ SET_HANDLED (fde, 0);
flag_traditional_format = save_flag_traditional_format;
}
{
int alignment = ffs (DWARF2_ADDR_SIZE (stdoutput)) - 1;
+ if (!SUPPORT_FRAME_LINKONCE)
+ get_cfi_seg (NULL, ".debug_frame",
+ SEC_READONLY | SEC_DEBUGGING,
+ alignment);
+
do
{
ccseg = NULL;
- cfi_seg = NULL;
seek_next_seg = 0;
+
for (cie = cie_root; cie; cie = cie_next)
{
cie_next = cie->next;
for (fde = all_fde_data; fde ; fde = fde->next)
{
- if (fde->handled != 0)
- continue;
- if (seek_next_seg && fde->cseg != ccseg)
- {
- seek_next_seg = 2;
- continue;
- }
- if (!seek_next_seg)
- {
- ccseg = fde->cseg;
- /* Open .debug_frame section. */
- cfi_seg = get_cfi_seg (ccseg, ".debug_frame",
- SEC_READONLY | SEC_DEBUGGING,
- alignment);
- seek_next_seg = 1;
+ if (SUPPORT_FRAME_LINKONCE)
+ {
+ if (HANDLED (fde))
+ continue;
+ if (seek_next_seg && CUR_SEG (fde) != ccseg)
+ {
+ seek_next_seg = 2;
+ continue;
+ }
+ if (!seek_next_seg)
+ {
+ ccseg = CUR_SEG (fde);
+ /* Open .debug_frame section. */
+ get_cfi_seg (ccseg, ".debug_frame",
+ SEC_READONLY | SEC_DEBUGGING,
+ alignment);
+ seek_next_seg = 1;
+ }
+ SET_HANDLED (fde, 1);
}
- fde->handled = 1;
if (fde->end_address == NULL)
{
as_bad (_("open CFI at the end of file; missing .cfi_endproc directive"));
output_fde (fde, cie, FALSE, first, alignment);
}
}
- while (seek_next_seg == 2);
+ while (SUPPORT_FRAME_LINKONCE && seek_next_seg == 2);
- for (fde = all_fde_data; fde ; fde = fde->next)
- fde->handled = 0;
+ if (SUPPORT_FRAME_LINKONCE)
+ for (fde = all_fde_data; fde ; fde = fde->next)
+ SET_HANDLED (fde, 0);
}
}
projects / deliverable / binutils-gdb.git / blobdiff