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[ARC] Enable .cfi_* pseudo-ops.
gas/ 2016-02-16 Claudiu Zissulescu <claziss@synopsys.com> * config/tc-arc.c (tc_arc_frame_initial_instructions): New function. (tc_arc_regname_to_dw2regnum): Likewise. * config/tc-arc.h (TARGET_USE_CFIPOP): Define (tc_cfi_frame_initial_instructions): Likewise. (tc_regname_to_dw2regnum): Likewise. gas/testsuite 2016-02-16 Claudiu Zissulescu <claziss@synopsys.com> * gas/cfi/cfi-arc-1.d: New file. * gas/cfi/cfi-arc-1.s: Likewise. * gas/cfi/cfi.exp: Allow running tests for arc. binutils/ 2016-02-16 Claudiu Zissulescu <claziss@synopsys.com> * readelf.c (is_32bit_pcrel_reloc): Add R_ARC_32_PCREL.
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Claudiu Zissulescu
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@ -1,3 +1,7 @@
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2016-02-16 Claudiu Zissulescu <claziss@synopsys.com>
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* readelf.c (is_32bit_pcrel_reloc): Add R_ARC_32_PCREL.
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2016-02-15 Nick Clifton <nickc@redhat.com>
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* readelf.c (get_section_type_name): Add hex prefix to offsets
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@ -11558,6 +11558,9 @@ is_32bit_pcrel_reloc (unsigned int reloc_type)
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return reloc_type == 6;
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case EM_ALPHA:
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return reloc_type == 10; /* R_ALPHA_SREL32. */
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case EM_ARC_COMPACT:
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case EM_ARC_COMPACT2:
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return reloc_type == 49; /* R_ARC_32_PCREL. */
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case EM_ARM:
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return reloc_type == 3; /* R_ARM_REL32 */
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case EM_MICROBLAZE:
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@ -1,3 +1,12 @@
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2016-02-16 Claudiu Zissulescu <claziss@synopsys.com>
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* config/tc-arc.c (tc_arc_frame_initial_instructions): New
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function.
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(tc_arc_regname_to_dw2regnum): Likewise.
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* config/tc-arc.h (TARGET_USE_CFIPOP): Define
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(tc_cfi_frame_initial_instructions): Likewise.
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(tc_regname_to_dw2regnum): Likewise.
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2016-02-16 Trevor Saunders <tbsaunde@tbsaunde.org>
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* doc/internals.texi (S_IS_EXTERN): Remove.
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@ -24,6 +24,7 @@
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#include "subsegs.h"
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#include "struc-symbol.h"
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#include "dwarf2dbg.h"
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#include "dw2gencfi.h"
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#include "safe-ctype.h"
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#include "opcode/arc.h"
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@ -3675,3 +3676,24 @@ arc_pcrel_adjust (fragS *fragP)
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return 0;
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}
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/* Initialize the DWARF-2 unwind information for this procedure. */
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void
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tc_arc_frame_initial_instructions (void)
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{
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/* Stack pointer is register 28. */
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cfi_add_CFA_def_cfa_register (28);
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}
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int
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tc_arc_regname_to_dw2regnum (char *regname)
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{
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struct symbol *sym;
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sym = hash_find (arc_reg_hash, regname);
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if (sym)
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return S_GET_VALUE (sym);
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return -1;
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}
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@ -191,12 +191,21 @@ extern void arc_handle_align (fragS *);
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extern void arc_cons_fix_new (fragS *, int, int, expressionS *,
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bfd_reloc_code_real_type);
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extern void arc_frob_label (symbolS *);
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extern void tc_arc_frame_initial_instructions (void);
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extern int tc_arc_regname_to_dw2regnum (char *regname);
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/* The blink register is r31. */
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#define DWARF2_DEFAULT_RETURN_COLUMN 31
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/* Registers are generally saved at negative offsets to the CFA. */
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#define DWARF2_CIE_DATA_ALIGNMENT (-4)
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/* We want .cfi_* pseudo-ops for generating unwind info. */
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#define TARGET_USE_CFIPOP 1
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/* CFI hooks. */
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#define tc_cfi_frame_initial_instructions tc_arc_frame_initial_instructions
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#define tc_regname_to_dw2regnum tc_arc_regname_to_dw2regnum
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/* Define the NOPs. */
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#define NOP_OPCODE_S 0x000078E0
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#define NOP_OPCODE_L 0x264A7000 /* mov 0,0. */
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5
gas/testsuite/ChangeLog
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5
gas/testsuite/ChangeLog
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@ -0,0 +1,5 @@
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2016-02-16 Claudiu Zissulescu <claziss@synopsys.com>
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* gas/cfi/cfi-arc-1.d: New file.
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* gas/cfi/cfi-arc-1.s: Likewise.
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* gas/cfi/cfi.exp: Allow running tests for arc.
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30
gas/testsuite/gas/cfi/cfi-arc-1.d
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30
gas/testsuite/gas/cfi/cfi-arc-1.d
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@ -0,0 +1,30 @@
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#readelf: -wf
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#name: CFI on ARC
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Contents of the .eh_frame section:
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00000000 00000010 00000000 CIE
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Version: 1
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Augmentation: "zR"
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Code alignment factor: 1
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Data alignment factor: -4
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Return address column: 31
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Augmentation data: 1b
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DW_CFA_def_cfa_register: r28
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DW_CFA_nop
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00000014 00000020 00000018 FDE cie=00000000 pc=00000000..00000010
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DW_CFA_advance_loc: 4 to 00000004
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DW_CFA_def_cfa_offset: 48
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DW_CFA_offset: r13 at cfa-48
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DW_CFA_advance_loc: 4 to 00000008
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DW_CFA_def_cfa_offset: 52
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DW_CFA_offset: r14 at cfa-44
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DW_CFA_offset: r15 at cfa-40
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DW_CFA_advance_loc: 4 to 0000000c
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DW_CFA_offset: r27 at cfa-52
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DW_CFA_advance_loc: 2 to 0000000e
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DW_CFA_def_cfa_register: r27
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DW_CFA_nop
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21
gas/testsuite/gas/cfi/cfi-arc-1.s
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21
gas/testsuite/gas/cfi/cfi-arc-1.s
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@ -0,0 +1,21 @@
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.file "foo.c"
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.cpu HS
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.section .text
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.align 4
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.cfi_startproc
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foo:
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st.a r13,[sp,-48]
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.cfi_def_cfa_offset 48
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.cfi_offset r13, -48
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.LCFI0:
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std r14,[sp,4]
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.cfi_adjust_cfa_offset 4
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.cfi_offset r14, -44
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.cfi_rel_offset r15, 12
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st.a fp,[sp,-4]
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.cfi_rel_offset fp, 0
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mov_s fp,sp
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.cfi_def_cfa_register fp
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j_s [blink]
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.cfi_endproc
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.size foo, .-foo
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@ -91,7 +91,8 @@ if { [istarget "i*86-*-*"] || [istarget "x86_64-*-*"] } then {
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} else {
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run_dump_test "cfi-sh-1"
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}
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} elseif { [istarget "arc*-*-*"] } then {
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run_dump_test "cfi-arc-1"
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} elseif { [istarget "arm*-*"] } then {
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# Only ELF based ARM targets support CFI.
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if { [is_pecoff_format] } then {
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