[binutils-gdb] Remove sym_fns::sym_read_linetable

[Tom Tromey]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=cc752a15b2a62d506550ed6f890cf21158a9cf4c

commit cc752a15b2a62d506550ed6f890cf21158a9cf4c
Author: Tom Tromey <tom@tromey.com>
Date:   Wed Jan 7 09:49:13 2026 -0700

    Remove sym_fns::sym_read_linetable
    
    The last user of sym_fns::sym_read_linetable was xcoffread.c.  Now
    that the code there has been removed, this callback can be removed as
    well.  This slightly simplifies buildsym.
    
    Approved-By: Simon Marchi <simon.marchi@efficios.com>

Diff:
---
 gdb/buildsym.c      |  5 -----
 gdb/coffread.c      |  1 -
 gdb/elfread.c       |  1 -
 gdb/machoread.c     |  1 -
 gdb/symfile-debug.c | 14 --------------
 gdb/symfile.h       |  6 ------
 gdb/xcoffread.c     |  7 -------
 7 files changed, 35 deletions(-)

diff --git a/gdb/buildsym.c b/gdb/buildsym.c
index 0e1b6292bf9..739343f46c7 100644
--- a/gdb/buildsym.c
+++ b/gdb/buildsym.c
@@ -799,11 +799,6 @@ buildsym_compunit::end_compunit_symtab_from_static_block
 			 true, expandable);
   blockvector_up blockvector = make_blockvector ();
 
-  /* Read the line table if it has to be read separately.
-     This is only used by xcoffread.c.  */
-  if (m_objfile->sf->sym_read_linetable != NULL)
-    m_objfile->sf->sym_read_linetable (m_objfile);
-
   /* Handle the case where the debug info specifies a different path
      for the main source file.  It can cause us to lose track of its
      line number information.  */
diff --git a/gdb/coffread.c b/gdb/coffread.c
index a94da096e15..54dcc7c765f 100644
--- a/gdb/coffread.c
+++ b/gdb/coffread.c
@@ -2099,7 +2099,6 @@ static const struct sym_fns coff_sym_fns =
 				   internal form */
   default_symfile_segments,	/* sym_segments: Get segment
 				   information from a file */
-  NULL,                         /* sym_read_linetable  */
 
   default_symfile_relocate,	/* sym_relocate: Relocate a debug
 				   section.  */
diff --git a/gdb/elfread.c b/gdb/elfread.c
index 062a4845bb4..60785ace56d 100644
--- a/gdb/elfread.c
+++ b/gdb/elfread.c
@@ -1323,7 +1323,6 @@ static const struct sym_fns elf_sym_fns =
   elf_symfile_read,		/* read a symbol file into symtab */
   default_symfile_offsets,	/* Translate ext. to int. relocation */
   elf_symfile_segments,		/* Get segment information from a file.  */
-  NULL,
   default_symfile_relocate,	/* Relocate a debug section.  */
   &elf_probe_fns,		/* sym_probe_fns */
 };
diff --git a/gdb/machoread.c b/gdb/machoread.c
index aa76ee779c5..334e3b41b6a 100644
--- a/gdb/machoread.c
+++ b/gdb/machoread.c
@@ -923,7 +923,6 @@ static const struct sym_fns macho_sym_fns = {
   macho_symfile_read,           /* read a symbol file into symtab */
   macho_symfile_offsets,        /* xlate external to internal form */
   default_symfile_segments,	/* Get segment information from a file.  */
-  NULL,
   macho_symfile_relocate,	/* Relocate a debug section.  */
   NULL,				/* sym_get_probes */
 };
diff --git a/gdb/symfile-debug.c b/gdb/symfile-debug.c
index 5e4e6224ddb..6562dcad433 100644
--- a/gdb/symfile-debug.c
+++ b/gdb/symfile-debug.c
@@ -755,18 +755,6 @@ debug_sym_segments (bfd *abfd)
   gdb_assert_not_reached ("debug_sym_segments called");
 }
 
-static void
-debug_sym_read_linetable (struct objfile *objfile)
-{
-  const struct debug_sym_fns_data *debug_data
-    = symfile_debug_objfile_data_key.get (objfile);
-
-  gdb_printf (gdb_stdlog, "sf->sym_read_linetable (%s)\n",
-	      objfile_debug_name (objfile));
-
-  debug_data->real_sf->sym_read_linetable (objfile);
-}
-
 static bfd_byte *
 debug_sym_relocate (struct objfile *objfile, asection *sectp, bfd_byte *buf)
 {
@@ -813,8 +801,6 @@ install_symfile_debug_logging (struct objfile *objfile)
   COPY_SF_PTR (real_sf, debug_data, sym_read, debug_sym_read);
   COPY_SF_PTR (real_sf, debug_data, sym_offsets, debug_sym_offsets);
   COPY_SF_PTR (real_sf, debug_data, sym_segments, debug_sym_segments);
-  COPY_SF_PTR (real_sf, debug_data, sym_read_linetable,
-	       debug_sym_read_linetable);
   COPY_SF_PTR (real_sf, debug_data, sym_relocate, debug_sym_relocate);
   if (real_sf->sym_probe_fns)
     debug_data->debug_sf.sym_probe_fns = &debug_sym_probe_fns;
diff --git a/gdb/symfile.h b/gdb/symfile.h
index 336fe93d582..f191db0c239 100644
--- a/gdb/symfile.h
+++ b/gdb/symfile.h
@@ -144,12 +144,6 @@ struct sym_fns
 
   symfile_segment_data_up (*sym_segments) (bfd *abfd);
 
-  /* This function should read the linetable from the objfile when
-     the line table cannot be read while processing the debugging
-     information.  */
-
-  void (*sym_read_linetable) (struct objfile *);
-
   /* Relocate the contents of a debug section SECTP.  The
      contents are stored in BUF if it is non-NULL, or returned in a
      malloc'd buffer otherwise.  */
diff --git a/gdb/xcoffread.c b/gdb/xcoffread.c
index 5a9a39042b8..5dc2da53950 100644
--- a/gdb/xcoffread.c
+++ b/gdb/xcoffread.c
@@ -131,12 +131,6 @@ xcoff_secnum_to_sections (int n_scnum, struct objfile *objfile,
     }
 }
 
-static void
-aix_process_linenos (struct objfile *objfile)
-{
-}
-
-
 /* Support for line number handling.  */
 
 /* This function is called for every section; it finds the outer limits
@@ -484,7 +478,6 @@ static const struct sym_fns xcoff_sym_fns =
   xcoff_initial_scan,		/* read a symbol file into symtab */
   xcoff_symfile_offsets,	/* xlate offsets ext->int form */
   default_symfile_segments,	/* Get segment information from a file.  */
-  aix_process_linenos,
   default_symfile_relocate,	/* Relocate a debug section.  */
   NULL,				/* sym_probe_fns */
 };