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gcc-5.3/gcc-4.9: -fdebug-prefix-map support to remap relative path

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For relative path in DWARF, -fdebug-prefix-map could not remap it,
so translate to real path before mapping.

[YOCTO #9305]

(From OE-Core rev: e50d23c30cd8259941b25e336b11cd96e4f6cd31)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Hongxu Jia
2016-03-28 04:18:46 -04:00
committed by Richard Purdie
parent 9e20f94c77
commit 326fc2916e
4 changed files with 104 additions and 0 deletions
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meta/recipes-devtools/gcc/gcc-5.3/0058-fdebug-prefix-map-support-to-remap-relative-path.patch
+51
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@@ -0,0 +1,51 @@
From 289ad2969a5966c603bf6928ce442db74c4cbb25 Mon Sep 17 00:00:00 2001
From: Hongxu Jia <hongxu.jia@windriver.com>
Date: Thu, 24 Mar 2016 11:23:14 -0400
Subject: [PATCH] gcc/final.c: -fdebug-prefix-map support to remap sources with
relative path
PR other/70428
* final.c (remap_debug_filename): Use lrealpath to translate
relative path before remapping
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70428
Upstream-Status: Submitted [gcc-patches@gcc.gnu.org]
Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
diff --git a/gcc/final.c b/gcc/final.c
index 55cf509..c3594c2 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1554,16 +1554,25 @@ remap_debug_filename (const char *filename)
const char *name;
size_t name_len;
+ /* Support to remap filename with relative path */
+ char *realpath = lrealpath (filename);
+ if (realpath == NULL)
+ return filename;
+
for (map = debug_prefix_maps; map; map = map->next)
- if (filename_ncmp (filename, map->old_prefix, map->old_len) == 0)
+ if (filename_ncmp (realpath, map->old_prefix, map->old_len) == 0)
break;
if (!map)
- return filename;
- name = filename + map->old_len;
+ {
+ free (realpath);
+ return filename;
+ }
+ name = realpath + map->old_len;
name_len = strlen (name) + 1;
s = (char *) alloca (name_len + map->new_len);
memcpy (s, map->new_prefix, map->new_len);
memcpy (s + map->new_len, name, name_len);
+ free (realpath);
return ggc_strdup (s);
}
--
2.7.4