From: Alan Modra <amodra@sourceware.org>
To: bfd-cvs@sourceware.org
Subject: [binutils-gdb] gas s_fill caused internal error in frag_new
Date: Wed, 1 Mar 2023 04:01:03 +0000 (GMT) [thread overview]
Message-ID: <20230301040103.BB53C3858005@sourceware.org> (raw)
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d09f4d4a9b96dcb4b732fe13549506be5b276ec2
commit d09f4d4a9b96dcb4b732fe13549506be5b276ec2
Author: Alan Modra <amodra@gmail.com>
Date: Wed Mar 1 12:50:34 2023 +1030
gas s_fill caused internal error in frag_new
Fix an internal error after "non-constant fill count for absolute
section".
* read.c (s_fill): Don't create frags after errors.
Diff:
---
gas/read.c | 30 ++++++++++++++++++++----------
1 file changed, 20 insertions(+), 10 deletions(-)
diff --git a/gas/read.c b/gas/read.c
index d43584be28c..5d83d35e0aa 100644
--- a/gas/read.c
+++ b/gas/read.c
@@ -2201,22 +2201,32 @@ s_fill (int ignore ATTRIBUTE_UNUSED)
as_warn (_("repeat < 0; .fill ignored"));
size = 0;
}
-
- if (size && !need_pass_2)
+ else if (size && !need_pass_2)
{
- if (now_seg == absolute_section)
+ if (now_seg == absolute_section && rep_exp.X_op != O_constant)
{
- if (rep_exp.X_op != O_constant)
- as_bad (_("non-constant fill count for absolute section"));
- else if (fill && rep_exp.X_add_number != 0)
- as_bad (_("attempt to fill absolute section with non-zero value"));
- abs_section_offset += rep_exp.X_add_number * size;
+ as_bad (_("non-constant fill count for absolute section"));
+ size = 0;
+ }
+ else if (now_seg == absolute_section && fill && rep_exp.X_add_number != 0)
+ {
+ as_bad (_("attempt to fill absolute section with non-zero value"));
+ size = 0;
}
else if (fill
&& (rep_exp.X_op != O_constant || rep_exp.X_add_number != 0)
&& in_bss ())
- as_bad (_("attempt to fill section `%s' with non-zero value"),
- segment_name (now_seg));
+ {
+ as_bad (_("attempt to fill section `%s' with non-zero value"),
+ segment_name (now_seg));
+ size = 0;
+ }
+ }
+
+ if (size && !need_pass_2)
+ {
+ if (now_seg == absolute_section)
+ abs_section_offset += rep_exp.X_add_number * size;
if (rep_exp.X_op == O_constant)
{
reply other threads:[~2023-03-01 4:01 UTC|newest]
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