mirrors/binutils-gdb
1
0
Fork 0
mirror of https://sourceware.org/git/binutils-gdb.git synced 2024-11-25 02:53:48 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

* dwarf2cfi.c: Reindented.

Browse Source
This commit is contained in:
Michal Ludvig 2002-06-21 13:53:24 +00:00
parent 7f0c12ed44
commit 19d833a2fa
2 changed files with 42 additions and 41 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
gdb/ChangeLog
View File

@ -9,6 +9,7 @@
(parse_frame_info): New, derived from former dwarf2_build_frame_info.
fixed augmentation handling, added relative addressing,
ignore duplicate FDEs. Added comments.
* dwarf2cfi.c: Reindented.
2002-06-20 Elena Zannoni <ezannoni@redhat.com>

82
gdb/dwarf2cfi.c
View File

@ -176,7 +176,8 @@ struct frame_state
struct objfile *objfile;
};
enum ptr_encoding {
enum ptr_encoding
{
PE_absptr = DW_EH_PE_absptr,
PE_pcrel = DW_EH_PE_pcrel,
PE_textrel = DW_EH_PE_textrel,
@ -561,7 +562,7 @@ pointer_encoding (unsigned char encoding)
if (encoding & DW_EH_PE_indirect)
warning ("CFI: Unsupported pointer encoding: DW_EH_PE_indirect");
switch (encoding & 0x70)
{
case DW_EH_PE_absptr:
@ -572,8 +573,7 @@ pointer_encoding (unsigned char encoding)
ret = encoding & 0x70;
break;
default:
internal_error (__FILE__, __LINE__,
"CFI: unknown pointer encoding");
internal_error (__FILE__, __LINE__, "CFI: unknown pointer encoding");
}
return ret;
}
@ -649,10 +649,10 @@ execute_cfa_program (struct objfile *objfile, char *insn_ptr, char *insn_end,
case DW_CFA_set_loc:
fs->pc = read_encoded_pointer (objfile->obfd, &insn_ptr,
fs->addr_encoding);
if (pointer_encoding (fs->addr_encoding) != PE_absptr)
warning ("CFI: DW_CFA_set_loc uses relative addressing");
warning ("CFI: DW_CFA_set_loc uses relative addressing");
break;
case DW_CFA_advance_loc1:
@ -1454,7 +1454,7 @@ parse_frame_info (struct objfile *objfile, file_ptr frame_offset,
unsigned long length;
ULONGEST cie_id;
ULONGEST unit_offset = start - frame_buffer;
int bytes_read, dwarf64, flag_pcrel;
int bytes_read, dwarf64;
char *block_end;
length = read_initial_length (abfd, start, &bytes_read);
@ -1596,17 +1596,17 @@ parse_frame_info (struct objfile *objfile, file_ptr frame_offset,
cie->addr_encoding);
switch (pointer_encoding (cie->addr_encoding))
{
{
case PE_absptr:
break;
break;
case PE_pcrel:
/* start-frame_buffer gives offset from
the beginning of actual section. */
init_loc += curr_section_vma + start - frame_buffer;
break;
/* start-frame_buffer gives offset from
the beginning of actual section. */
init_loc += curr_section_vma + start - frame_buffer;
break;
default:
warning ("CFI: Unsupported pointer encoding\n");
}
warning ("CFI: Unsupported pointer encoding\n");
}
/* For relocatable objects we must add an offset telling
where the section is actually mapped in the memory. */
@ -1625,23 +1625,23 @@ parse_frame_info (struct objfile *objfile, file_ptr frame_offset,
and don't need to care about duplicate FDEs, because
.debug_frame is parsed first. */
if (eh_frame == 2)
for (i = 0; eh_frame == 2 && i < fde_chunks.elems; i++)
{
/* We assume that FDEs in .debug_frame and .eh_frame
have the same order (if they are present, of course).
If we find a duplicate entry for one FDE and save
it's index to last_dup_fde it's very likely, that
we'll find an entry for the following FDE right after
the previous one. Thus in many cases we'll run this
loop only once. */
last_dup_fde = (last_dup_fde + i) % fde_chunks.elems;
if (fde_chunks.array[last_dup_fde]->initial_location
== init_loc)
{
dup = 1;
break;
}
}
for (i = 0; eh_frame == 2 && i < fde_chunks.elems; i++)
{
/* We assume that FDEs in .debug_frame and .eh_frame
have the same order (if they are present, of course).
If we find a duplicate entry for one FDE and save
it's index to last_dup_fde it's very likely, that
we'll find an entry for the following FDE right after
the previous one. Thus in many cases we'll run this
loop only once. */
last_dup_fde = (last_dup_fde + i) % fde_chunks.elems;
if (fde_chunks.array[last_dup_fde]->initial_location
== init_loc)
{
dup = 1;
break;
}
}
/* Allocate a new entry only if this FDE isn't a duplicate of
something we have already seen. */
@ -1688,15 +1688,15 @@ dwarf2_build_frame_info (struct objfile *objfile)
eh_frame==1. */
if (dwarf_frame_offset)
{
parse_frame_info (objfile, dwarf_frame_offset,
dwarf_frame_size, 0 /* = debug_frame */);
after_debug_frame = 1;
}
{
parse_frame_info (objfile, dwarf_frame_offset,
dwarf_frame_size, 0 /* = debug_frame */ );
after_debug_frame = 1;
}
if (dwarf_eh_frame_offset)
parse_frame_info (objfile, dwarf_eh_frame_offset, dwarf_eh_frame_size,
1 /* = eh_frame */ + after_debug_frame);
parse_frame_info (objfile, dwarf_eh_frame_offset, dwarf_eh_frame_size,
1 /* = eh_frame */ + after_debug_frame);
}
/* Return the frame address. */
@ -1861,7 +1861,7 @@ cfi_get_ra (struct frame_info *fi)
void
cfi_get_saved_register (char *raw_buffer,
int *optimized,
CORE_ADDR * addrp,
CORE_ADDR *addrp,
struct frame_info *frame,
int regnum, enum lval_type *lval)
{