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* [binutils-gdb] gdb/dwarf: remove line_header::total_length field
@ 2022-04-21 19:06 Simon Marchi
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From: Simon Marchi @ 2022-04-21 19:06 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ebf58f8eb185e49fa4ed05b5e2ff5d703229b9b7
commit ebf58f8eb185e49fa4ed05b5e2ff5d703229b9b7
Author: Simon Marchi <simon.marchi@efficios.com>
Date: Tue Apr 12 15:31:24 2022 -0400
gdb/dwarf: remove line_header::total_length field
This doesn' have to be a field, it can simply be a local variable in
dwarf_decode_line_header. Name the local variable "unit_length", since
that's what the field in called in DWARF 4 and 5. It's always easier to
follow the code with the standard on the side when we use the same
terminology.
Change-Id: I3ad1022afd9410b193ea11b9b5437686c1e4e633
Diff:
---
| 10 +++++-----
| 1 -
2 files changed, 5 insertions(+), 6 deletions(-)
--git a/gdb/dwarf2/line-header.c b/gdb/dwarf2/line-header.c
index 8f4eb4f124c..9a5f3fabe8d 100644
--- a/gdb/dwarf2/line-header.c
+++ b/gdb/dwarf2/line-header.c
@@ -289,19 +289,19 @@ dwarf_decode_line_header (sect_offset sect_off, bool is_dwz,
line_ptr = section->buffer + to_underlying (sect_off);
/* Read in the header. */
- lh->total_length =
- read_checked_initial_length_and_offset (abfd, line_ptr, cu_header,
- &bytes_read, &offset_size);
+ LONGEST unit_length
+ = read_checked_initial_length_and_offset (abfd, line_ptr, cu_header,
+ &bytes_read, &offset_size);
line_ptr += bytes_read;
const gdb_byte *start_here = line_ptr;
- if (line_ptr + lh->total_length > (section->buffer + section->size))
+ if (line_ptr + unit_length > (section->buffer + section->size))
{
dwarf2_statement_list_fits_in_line_number_section_complaint ();
return 0;
}
- lh->statement_program_end = start_here + lh->total_length;
+ lh->statement_program_end = start_here + unit_length;
lh->version = read_2_bytes (abfd, line_ptr);
line_ptr += 2;
if (lh->version > 5)
--git a/gdb/dwarf2/line-header.h b/gdb/dwarf2/line-header.h
index 4adfe91b8ac..25b9e7c2032 100644
--- a/gdb/dwarf2/line-header.h
+++ b/gdb/dwarf2/line-header.h
@@ -136,7 +136,6 @@ struct line_header
/* OFFSET is for struct dwz_file associated with dwarf2_per_objfile. */
unsigned offset_in_dwz : 1; /* Can't initialize bitfields in-class. */
- unsigned int total_length {};
unsigned short version {};
unsigned int header_length {};
unsigned char minimum_instruction_length {};
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