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Reduce excessive .eh_frame alignment for powerpc
- From: Alan Modra <amodra at gmail dot com>
- To: binutils at sourceware dot org
- Date: Thu, 21 Sep 2017 23:16:36 +0930
- Subject: Reduce excessive .eh_frame alignment for powerpc
- Authentication-results: sourceware.org; auth=none
PowerPC64 .cfi directives use DW_EH_PE_sdata4 encoding for .eh_frame,
so there is no real reason why .eh_frame should be 8 byte aligned.
gas/
* config/tc-ppc.h (EH_FRAME_ALIGNMENT): Define.
ld/
* testsuite/ld-powerpc/tlsopt5.wf: Update for reduced alignment.
diff --git a/gas/config/tc-ppc.h b/gas/config/tc-ppc.h
index f71f2ea..d89bad9 100644
--- a/gas/config/tc-ppc.h
+++ b/gas/config/tc-ppc.h
@@ -325,3 +325,4 @@ extern int ppc_dwarf2_line_min_insn_length;
#define DWARF2_LINE_MIN_INSN_LENGTH ppc_dwarf2_line_min_insn_length
#define DWARF2_DEFAULT_RETURN_COLUMN 0x41
#define DWARF2_CIE_DATA_ALIGNMENT ppc_cie_data_alignment
+#define EH_FRAME_ALIGNMENT 2
diff --git a/ld/testsuite/ld-powerpc/tlsopt5.wf b/ld/testsuite/ld-powerpc/tlsopt5.wf
index 158f650..af8cb76 100644
--- a/ld/testsuite/ld-powerpc/tlsopt5.wf
+++ b/ld/testsuite/ld-powerpc/tlsopt5.wf
@@ -16,17 +16,13 @@ Contents of the \.eh_frame section:
DW_CFA_advance_loc: 16 to .*
DW_CFA_restore_extended: r65
-0+2c 0+18 0+30 FDE cie=0+ pc=.*
+0+2c 0+14 0+30 FDE cie=0+ pc=.*
DW_CFA_advance_loc: 4 to .*
DW_CFA_register: r65 in r0
DW_CFA_advance_loc: 28 to .*
DW_CFA_restore_extended: r65
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
- DW_CFA_nop
-0+48 0+10 0+4c FDE cie=0+ pc=.*
+0+44 0+10 0+48 FDE cie=0+ pc=.*
DW_CFA_nop
DW_CFA_nop
DW_CFA_nop
--
Alan Modra
Australia Development Lab, IBM