riscv
/
binutils-gdb
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

* dw2gencfi.c (struct cfa_save_data, cfa_save_stack): New. 

(cfi_add_CFA_offset): Detect invalid offsets.
        (cfi_add_CFA_remember_state): Save cur_cfa_offset.
        (cfi_add_CFA_restore_state): Restore it.
        (CFI_rel_offset): New.
        (cfi_pseudo_table): Add it.
        (dot_cfi): Handle it.

        * gas/cfi/cfi-common-1.d, gas/cfi/cfi-common-1.s: New.
        * gas/cfi/cfi-common-2.d, gas/cfi/cfi-common-2.s: New.
        * gas/cfi/cfi-diag-1.d, gas/cfi/cfi-diag-1.s: New.
        * gas/cfi/cfi.exp: Run them.
ezannoni_pie-20030916-branch
Richard Henderson 24 years ago
parent
a0273b2f03
commit
fa87b337c3
10 changed files with 161 additions and 0 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 10
      gas/ChangeLog
  2. 41
      gas/dw2gencfi.c
  3. 7
      gas/testsuite/ChangeLog
  4. 24
      gas/testsuite/gas/cfi/cfi-common-1.d
  5. 8
      gas/testsuite/gas/cfi/cfi-common-1.s
  6. 29
      gas/testsuite/gas/cfi/cfi-common-2.d
  7. 12
      gas/testsuite/gas/cfi/cfi-common-2.s
  8. 2
      gas/testsuite/gas/cfi/cfi-diag-1.l
  9. 3
      gas/testsuite/gas/cfi/cfi-diag-1.s
  10. 25
      gas/testsuite/gas/cfi/cfi.exp

10
gas/ChangeLog
View File

@ -1,3 +1,13 @@
2003-06-07 Richard Henderson <rth@redhat.com>
* dw2gencfi.c (struct cfa_save_data, cfa_save_stack): New.
(cfi_add_CFA_offset): Detect invalid offsets.
(cfi_add_CFA_remember_state): Save cur_cfa_offset.
(cfi_add_CFA_restore_state): Restore it.
(CFI_rel_offset): New.
(cfi_pseudo_table): Add it.
(dot_cfi): Handle it.
2003-06-07 H.J. Lu <hongjiu.lu@intel.com>
* app.c (do_scrub_chars): Add states 14 and 15 to handle

41
gas/dw2gencfi.c
View File

@ -102,6 +102,14 @@ static struct fde_entry **last_fde_data = &all_fde_data;
/* List of CIEs so that they could be reused. */
static struct cie_entry *cie_root;
/* Stack of old CFI data, for save/restore. */
struct cfa_save_data
{
struct cfa_save_data *next;
offsetT cfa_offset;
};
static struct cfa_save_data *cfa_save_stack;
/* Construct a new FDE structure and add it to the end of the fde list. */
@ -231,7 +239,14 @@ cfi_add_advance_loc (symbolS *label)
void
cfi_add_CFA_offset (unsigned regno, offsetT offset)
{
unsigned int abs_data_align;
cfi_add_CFA_insn_reg_offset (DW_CFA_offset, regno, offset);
abs_data_align = (DWARF2_CIE_DATA_ALIGNMENT < 0
? -DWARF2_CIE_DATA_ALIGNMENT : DWARF2_CIE_DATA_ALIGNMENT);
if (offset % abs_data_align)
as_bad (_("register save offset not a multiple of %u"), abs_data_align);
}
/* Add a DW_CFA_def_cfa record to the CFI data. */
@ -289,13 +304,30 @@ cfi_add_CFA_same_value (unsigned regno)
void
cfi_add_CFA_remember_state (void)
{
struct cfa_save_data *p;
cfi_add_CFA_insn (DW_CFA_remember_state);
p = xmalloc (sizeof (*p));
p->cfa_offset = cur_cfa_offset;
p->next = cfa_save_stack;
cfa_save_stack = p;
}
void
cfi_add_CFA_restore_state (void)
{
struct cfa_save_data *p;
cfi_add_CFA_insn (DW_CFA_restore_state);
p = cfa_save_stack;
if (p)
{
cur_cfa_offset = p->cfa_offset;
cfa_save_stack = p->next;
free (p);
}
}
void
@ -314,6 +346,7 @@ static void dot_cfi_endproc (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
const pseudo_typeS cfi_pseudo_table[] =
{
@ -324,6 +357,7 @@ const pseudo_typeS cfi_pseudo_table[] =
{ "cfi_def_cfa_offset", dot_cfi, DW_CFA_def_cfa_offset },
{ "cfi_adjust_cfa_offset", dot_cfi, CFI_adjust_cfa_offset },
{ "cfi_offset", dot_cfi, DW_CFA_offset },
{ "cfi_rel_offset", dot_cfi, CFI_rel_offset },
{ "cfi_register", dot_cfi, DW_CFA_register },
{ "cfi_return_column", dot_cfi, CFI_return_column },
{ "cfi_restore", dot_cfi, DW_CFA_restore },
@ -422,6 +456,13 @@ dot_cfi (int arg)
cfi_add_CFA_offset (reg1, offset);
break;
case CFI_rel_offset:
reg1 = cfi_parse_reg ();
cfi_parse_separator ();
offset = cfi_parse_const ();
cfi_add_CFA_offset (reg1, offset - cur_cfa_offset);
break;
case DW_CFA_def_cfa:
reg1 = cfi_parse_reg ();
cfi_parse_separator ();

7
gas/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2003-06-07 Richard Henderson <rth@redhat.com>
* gas/cfi/cfi-common-1.d, gas/cfi/cfi-common-1.s: New.
* gas/cfi/cfi-common-2.d, gas/cfi/cfi-common-2.s: New.
* gas/cfi/cfi-diag-1.d, gas/cfi/cfi-diag-1.s: New.
* gas/cfi/cfi.exp: Run them.
2003-06-05 Michael Snyder <msnyder@redhat.com>
* gas/h8300/t01_mov.s: New file, tests mov instructions.

24
gas/testsuite/gas/cfi/cfi-common-1.d
View File

@ -0,0 +1,24 @@
#readelf: -wf
#name: CFI common 1
The section .eh_frame contains:
00000000 00000010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: .*
Data alignment factor: .*
Return address column: .*
Augmentation data: 1b
DW_CFA_nop
DW_CFA_nop
DW_CFA_nop
00000014 00000018 00000018 FDE cie=00000000 pc=.*
DW_CFA_advance_loc: 4 to .*
DW_CFA_def_cfa: r0 ofs 16
DW_CFA_offset: r1 at cfa-8
DW_CFA_advance_loc: 4 to .*
DW_CFA_def_cfa_offset: 32
DW_CFA_offset: r2 at cfa-24

8
gas/testsuite/gas/cfi/cfi-common-1.s
View File

@ -0,0 +1,8 @@
.cfi_startproc simple
.long 0
.cfi_def_cfa 0, 16
.cfi_rel_offset 1, 8
.long 0
.cfi_adjust_cfa_offset 16
.cfi_rel_offset 2, 8
.cfi_endproc

29
gas/testsuite/gas/cfi/cfi-common-2.d
View File

@ -0,0 +1,29 @@
#readelf: -wf
#name: CFI common 2
The section .eh_frame contains:
00000000 00000010 00000000 CIE
Version: 1
Augmentation: "zR"
Code alignment factor: .*
Data alignment factor: .*
Return address column: .*
Augmentation data: 1b
DW_CFA_nop
DW_CFA_nop
DW_CFA_nop
00000014 0000001c 00000018 FDE cie=00000000 pc=.*
DW_CFA_advance_loc: 4 to .*
DW_CFA_def_cfa: r0 ofs 16
DW_CFA_advance_loc: 4 to .*
DW_CFA_remember_state
DW_CFA_advance_loc: 4 to .*
DW_CFA_def_cfa_offset: 0
DW_CFA_advance_loc: 4 to .*
DW_CFA_restore_state
DW_CFA_advance_loc: 4 to .*
DW_CFA_def_cfa_offset: 0
DW_CFA_nop

12
gas/testsuite/gas/cfi/cfi-common-2.s
View File

@ -0,0 +1,12 @@
.cfi_startproc simple
.long 0
.cfi_def_cfa 0, 16
.long 0
.cfi_remember_state
.long 0
.cfi_adjust_cfa_offset -16
.long 0
.cfi_restore_state
.long 0
.cfi_adjust_cfa_offset -16
.cfi_endproc

2
gas/testsuite/gas/cfi/cfi-diag-1.l
View File

@ -0,0 +1,2 @@
.*: Assembler messages:
.*:2: Error: register save offset not a multiple of .*

3
gas/testsuite/gas/cfi/cfi-diag-1.s
View File

@ -0,0 +1,3 @@
.cfi_startproc
.cfi_offset 0, 1
.cfi_endproc

25
gas/testsuite/gas/cfi/cfi.exp
View File

@ -1,9 +1,27 @@
# ??? This probably shouldn't be replicated here...
proc run_list_test { name opts } {
global srcdir subdir
set testname "cfi $name"
set file $srcdir/$subdir/$name
gas_run ${name}.s $opts ">&dump.out"
if { [regexp_diff "dump.out" "${file}.l"] } then {
fail $testname
verbose "output is [file_contents "dump.out"]" 2
return
}
pass $testname
}
set any "0"
if [istarget "x86_64-*"] then {
run_dump_test "cfi-x86_64"
set any "1"
}
if [istarget "i?86-*"] then {
run_dump_test "cfi-i386"
set any "1"
}
if { [istarget alpha*-*-*] } then {
@ -17,5 +35,12 @@ if { [istarget alpha*-*-*] } then {
run_dump_test "cfi-alpha-1"
run_dump_test "cfi-alpha-2"
run_dump_test "cfi-alpha-3"
set any "1"
}
}
if $any {
run_list_test "cfi-diag-1" ""
run_dump_test "cfi-common-1"
run_dump_test "cfi-common-2"
}

Write Preview
Loading…
Cancel
Save