From: Alan Modra <amodra@gmail.com>
To: binutils@sourceware.org
Subject: Don't attempt to compress bss sections
Date: Fri, 23 Sep 2022 11:56:39 +0930 [thread overview]
Message-ID: <Yy0ZX4tJ7D6tJ32m@squeak.grove.modra.org> (raw)
It doesn't make sense to try to compress a section without contents
since those sections take no space on disk. Compression can only
increase the disk image size.
* coffgen.c (make_a_section_from_file): Exclude !SEC_HAS_CONTENTS
sections from compression and decompression.
* elf.c (_bfd_elf_make_section_from_shdr): Likewise.
diff --git a/bfd/coffgen.c b/bfd/coffgen.c
index 90fba3b8554..8eb69af2ce2 100644
--- a/bfd/coffgen.c
+++ b/bfd/coffgen.c
@@ -146,7 +146,8 @@ make_a_section_from_file (bfd *abfd,
/* Compress/decompress DWARF debug sections with names: .debug_* and
.zdebug_*, after the section flags is set. */
- if ((flags & SEC_DEBUGGING)
+ if ((flags & SEC_DEBUGGING) != 0
+ && (flags & SEC_HAS_CONTENTS) != 0
&& strlen (name) > 7
&& ((name[1] == 'd' && name[6] == '_')
|| (strlen (name) > 8 && name[1] == 'z' && name[7] == '_')))
diff --git a/bfd/elf.c b/bfd/elf.c
index bc433cf516c..16cea4f8aeb 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -1201,7 +1201,8 @@ _bfd_elf_make_section_from_shdr (bfd *abfd,
/* Compress/decompress DWARF debug sections with names: .debug_* and
.zdebug_*, after the section flags is set. */
- if ((newsect->flags & SEC_DEBUGGING)
+ if ((newsect->flags & SEC_DEBUGGING) != 0
+ && (newsect->flags & SEC_HAS_CONTENTS) != 0
&& ((name[1] == 'd' && name[6] == '_')
|| (name[1] == 'z' && name[7] == '_')))
{
--
Alan Modra
Australia Development Lab, IBM
next reply other threads:[~2022-09-23 2:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-23 2:26 Alan Modra [this message]
2022-09-23 6:33 ` Jan Beulich
2022-09-23 6:49 ` Alan Modra
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