From c9f90a25d4945e904839326957c7c4d34abd88dd Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Thu, 5 Mar 2020 08:44:11 +0100 Subject: [PATCH] Keep .GCC.command.line sections of LTO objetcs This patch is for .GCC.command.line sections in LTO objects to be copied into the final objects as in the following example: [egeyar@localhost lto]$ gcc -flto -O3 demo.c -c -g --record-gcc-command-line [egeyar@localhost lto]$ gcc -flto -O2 demo2.c -c -g --record-gcc-command-line -DFORTIFY=2 [egeyar@localhost lto]$ gcc demo.o demo2.o -o a.out [egeyar@localhost lto]$ readelf -p .GCC.command.line a.out String dump of section '.GCC.command.line': [ 0] 10.0.1 20200227 (experimental) : gcc -flto -O3 demo.c -c -g --record-gcc-command-line [ 56] 10.0.1 20200227 (experimental) : gcc -flto -O2 demo2.c -c -g --record-gcc-command-line -DFORTIFY=2 2020-03-05 Egeyar Bagcioglu * simple-object.c (handle_lto_debug_sections): Name ".GCC.command.line" among debug sections to be copied over from lto objects. --- libiberty/ChangeLog | 6 ++++++ libiberty/simple-object.c | 3 +++ 2 files changed, 9 insertions(+) diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index 4c8b236cf78..106c107e91a 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,9 @@ +2020-03-05 Egeyar Bagcioglu + + * simple-object.c (handle_lto_debug_sections): Name + ".GCC.command.line" among debug sections to be copied over + from lto objects. + 2020-03-02 Nick Clifton * testsuite/demangle-expected: Update expected demangling of diff --git a/libiberty/simple-object.c b/libiberty/simple-object.c index e6c466ab767..92f5698d0a6 100644 --- a/libiberty/simple-object.c +++ b/libiberty/simple-object.c @@ -301,6 +301,9 @@ handle_lto_debug_sections (const char *name, int rename) COMDAT sections in objects produced by GCC. */ else if (strcmp (name, ".comment") == 0) return strcpy (newname, name); + /* Copy over .GCC.command.line section under the same name if present. */ + else if (strcmp (name, ".GCC.command.line") == 0) + return strcpy (newname, name); free (newname); return NULL; } -- 2.30.2