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authorMatthew Fortune <matthew.fortune@imgtec.com>2016-09-29 11:13:46 +0100
committerMatthew Fortune <matthew.fortune@imgtec.com>2016-10-06 12:46:09 +0100
commit3d3424e9a8d6ad56160b98bf6e223c0346164468 (patch)
treee66be6d89f5b7ce83276e8a320309ace3a190073 /gas/dw2gencfi.c
parentee8da4b8396d9a74d27cb9bb0f3aa43d6d23b8ea (diff)
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Refine .cfi_sections check to only consider compact eh_frame
The .cfi_sections directive can be safely used multiple times with different sections named at any time unless the compact form of exception handling is requested after CFI information has been emitted. Only the compact form of CFI information changes the way in which CFI is generated and therefore cannot be retrospectively requested after generating CFI information. gas/ PR gas/20648 * dw2gencfi.c (dot_cfi_sections): Refine the check for inconsistent .cfi_sections to only consider compact vs non compact forms. * testsuite/gas/cfi/cfi-common-9.d: New file. * testsuite/gas/cfi/cfi-common-9.s: New file. * testsuite/gas/cfi/cfi.exp: Run new test.
Diffstat (limited to 'gas/dw2gencfi.c')
-rw-r--r--gas/dw2gencfi.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/gas/dw2gencfi.c b/gas/dw2gencfi.c
index 7294f17..8eebb51 100644
--- a/gas/dw2gencfi.c
+++ b/gas/dw2gencfi.c
@@ -1269,7 +1269,10 @@ dot_cfi_sections (int ignored ATTRIBUTE_UNUSED)
}
demand_empty_rest_of_line ();
- if (cfi_sections_set && cfi_sections != sections)
+ if (cfi_sections_set
+ && (sections & (CFI_EMIT_eh_frame | CFI_EMIT_eh_frame_compact))
+ && (cfi_sections & (CFI_EMIT_eh_frame | CFI_EMIT_eh_frame_compact))
+ != (sections & (CFI_EMIT_eh_frame | CFI_EMIT_eh_frame_compact)))
as_bad (_("inconsistent uses of .cfi_sections"));
cfi_sections = sections;
}