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authorSimon Marchi <simon.marchi@ericsson.com>2018-06-15 23:07:42 -0400
committerSimon Marchi <simon.marchi@ericsson.com>2018-06-18 09:34:12 -0400
commit978588dc5854b02dc24e0eed18741415176753d8 (patch)
tree221cabc069ebf6131e1c8025a72163ff2d277511 /libiberty/simple-object.c
parent37f980dc03cc85795ea2e4de4ca69d3d7d1153c7 (diff)
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libiberty: Sync with GCC
Also sync include/simple-object.h, which goes together with the change in libiberty.
Diffstat (limited to 'libiberty/simple-object.c')
-rw-r--r--libiberty/simple-object.c45
1 files changed, 34 insertions, 11 deletions
diff --git a/libiberty/simple-object.c b/libiberty/simple-object.c
index 42aa6ac..82a8cff 100644
--- a/libiberty/simple-object.c
+++ b/libiberty/simple-object.c
@@ -251,12 +251,15 @@ simple_object_find_section (simple_object_read *sobj, const char *name,
}
/* Callback to identify and rename LTO debug sections by name.
- Returns 1 if NAME is a LTO debug section, 0 if not. */
+ Returns non-NULL if NAME is a LTO debug section, NULL if not.
+ If RENAME is true it will rename LTO debug sections to non-LTO
+ ones. */
static char *
-handle_lto_debug_sections (const char *name)
+handle_lto_debug_sections (const char *name, int rename)
{
- char *newname = XCNEWVEC (char, strlen (name) + 1);
+ char *newname = rename ? XCNEWVEC (char, strlen (name) + 1)
+ : xstrdup (name);
/* ??? So we can't use .gnu.lto_ prefixed sections as the assembler
complains about bogus section flags. Which means we need to arrange
@@ -265,22 +268,24 @@ handle_lto_debug_sections (const char *name)
/* Also include corresponding reloc sections. */
if (strncmp (name, ".rela", sizeof (".rela") - 1) == 0)
{
- strncpy (newname, name, sizeof (".rela") - 1);
+ if (rename)
+ strncpy (newname, name, sizeof (".rela") - 1);
name += sizeof (".rela") - 1;
}
else if (strncmp (name, ".rel", sizeof (".rel") - 1) == 0)
{
- strncpy (newname, name, sizeof (".rel") - 1);
+ if (rename)
+ strncpy (newname, name, sizeof (".rel") - 1);
name += sizeof (".rel") - 1;
}
/* ??? For now this handles both .gnu.lto_ and .gnu.debuglto_ prefixed
sections. */
/* Copy LTO debug sections and rename them to their non-LTO name. */
if (strncmp (name, ".gnu.debuglto_", sizeof (".gnu.debuglto_") - 1) == 0)
- return strcat (newname, name + sizeof (".gnu.debuglto_") - 1);
+ return rename ? strcat (newname, name + sizeof (".gnu.debuglto_") - 1) : newname;
else if (strncmp (name, ".gnu.lto_.debug_",
sizeof (".gnu.lto_.debug_") -1) == 0)
- return strcat (newname, name + sizeof (".gnu.lto_") - 1);
+ return rename ? strcat (newname, name + sizeof (".gnu.lto_") - 1) : newname;
/* Copy over .note.GNU-stack section under the same name if present. */
else if (strcmp (name, ".note.GNU-stack") == 0)
return strcpy (newname, name);
@@ -289,14 +294,31 @@ handle_lto_debug_sections (const char *name)
COMDAT sections in objects produced by GCC. */
else if (strcmp (name, ".comment") == 0)
return strcpy (newname, name);
+ free (newname);
return NULL;
}
+/* Wrapper for handle_lto_debug_sections. */
+
+static char *
+handle_lto_debug_sections_rename (const char *name)
+{
+ return handle_lto_debug_sections (name, 1);
+}
+
+/* Wrapper for handle_lto_debug_sections. */
+
+static char *
+handle_lto_debug_sections_norename (const char *name)
+{
+ return handle_lto_debug_sections (name, 0);
+}
+
/* Copy LTO debug sections. */
const char *
simple_object_copy_lto_debug_sections (simple_object_read *sobj,
- const char *dest, int *err)
+ const char *dest, int *err, int rename)
{
const char *errmsg;
simple_object_write *dest_sobj;
@@ -317,9 +339,10 @@ simple_object_copy_lto_debug_sections (simple_object_read *sobj,
if (! dest_sobj)
return errmsg;
- errmsg = sobj->functions->copy_lto_debug_sections (sobj, dest_sobj,
- handle_lto_debug_sections,
- err);
+ errmsg = sobj->functions->copy_lto_debug_sections
+ (sobj, dest_sobj,
+ rename ? handle_lto_debug_sections_rename
+ : handle_lto_debug_sections_norename, err);
if (errmsg)
{
simple_object_release_write (dest_sobj);