gas:
* config/tc-arm.c (find_real_start): Check S_IS_LOCAL on symbolP as well as for names with a leading dot. Use ACONCAT. (md_apply_fix): For branch relocations, only replace value with fixP->fx_offset (under #ifdef OBJ_ELF) when !fixP->fx_done. (arm_force_relocation): Remove #ifdef OBJ_ELF case. * config/tc-arm.h (LOCAL_LABEL): Remove unnecessary parentheses. (LOCAL_LABEL_PREFIX): Don't define. gas/testsuite: * gas/arm/thumb.s: Only branch to labels defined in this file. * gas/arm/thumb.d, gas/arm/thumb32.d: Adjust expected output.
This commit is contained in:
Zack Weinberg
parent
7b5c6b52e4
commit
37f6032b85
7 changed files with 83 additions and 106 deletions
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@ -1,3 +1,13 @@
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2005-06-13 Zack Weinberg <zack@codesourcery.com>
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* config/tc-arm.c (find_real_start): Check S_IS_LOCAL on
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symbolP as well as for names with a leading dot. Use ACONCAT.
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(md_apply_fix): For branch relocations, only replace value
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with fixP->fx_offset (under #ifdef OBJ_ELF) when !fixP->fx_done.
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(arm_force_relocation): Remove #ifdef OBJ_ELF case.
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* config/tc-arm.h (LOCAL_LABEL): Remove unnecessary parentheses.
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(LOCAL_LABEL_PREFIX): Don't define.
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2005-06-10 Alan Modra <amodra@bigpond.net.au>
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* config/tc-hppa.c (pa_block): Allocate just one byte for the
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@ -1414,15 +1414,15 @@ find_real_start (symbolS * symbolP)
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if (name == NULL)
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abort ();
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/* Names that start with '.' are local labels, not function entry points.
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The compiler may generate BL instructions to these labels because it
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needs to perform a branch to a far away location. */
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if (name[0] == '.')
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/* The compiler may generate BL instructions to local labels because
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it needs to perform a branch to a far away location. These labels
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do not have a corresponding ".real_start_of" label. We check
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both for S_IS_LOCAL and for a leading dot, to give a way to bypass
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the ".real_start_of" convention for nonlocal branches. */
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if (S_IS_LOCAL (symbolP) || name[0] == '.')
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return symbolP;
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real_start = malloc (strlen (name) + strlen (STUB_NAME) + 1);
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sprintf (real_start, "%s%s", STUB_NAME, name);
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real_start = ACONCAT ((STUB_NAME, name, NULL));
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new_target = symbol_find (real_start);
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if (new_target == NULL)
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@ -1431,8 +1431,6 @@ find_real_start (symbolS * symbolP)
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new_target = symbolP;
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}
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free (real_start);
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return new_target;
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}
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@ -10513,7 +10511,8 @@ md_apply_fix (fixS * fixP,
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#define SEXT24(x) ((((x) & 0xffffff) ^ (~ 0x7fffff)) + 0x800000)
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#ifdef OBJ_ELF
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value = fixP->fx_offset;
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if (!fixP->fx_done)
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value = fixP->fx_offset;
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#endif
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/* We are going to store value (shifted right by two) in the
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@ -10583,7 +10582,8 @@ md_apply_fix (fixS * fixP,
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newval = md_chars_to_number (buf, INSN_SIZE);
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#ifdef OBJ_ELF
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value = fixP->fx_offset;
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if (!fixP->fx_done)
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value = fixP->fx_offset;
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#endif
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hbit = (value >> 1) & 1;
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value = (value >> 2) & 0x00ffffff;
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@ -10742,7 +10742,8 @@ md_apply_fix (fixS * fixP,
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if (diff & 0x400000)
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diff |= ~0x3fffff;
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#ifdef OBJ_ELF
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value = fixP->fx_offset;
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if (!fixP->fx_done)
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value = fixP->fx_offset;
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#endif
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value += diff;
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@ -11353,13 +11354,6 @@ arm_force_relocation (struct fix * fixp)
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if (fixp->fx_r_type == BFD_RELOC_RVA)
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return 1;
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#endif
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#ifdef OBJ_ELF
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if (fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BRANCH
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|| fixp->fx_r_type == BFD_RELOC_ARM_PCREL_BLX
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|| fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BLX
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|| fixp->fx_r_type == BFD_RELOC_THUMB_PCREL_BRANCH23)
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return 1;
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#endif
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/* Resolve these relocations even if the symbol is extern or weak. */
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if (fixp->fx_r_type == BFD_RELOC_ARM_IMMEDIATE
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@ -127,8 +127,8 @@ struct fix;
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#define OPTIONAL_REGISTER_PREFIX '%'
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#define LOCAL_LABEL(name) (name[0] == '.' && (name[1] == 'L'))
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#define LOCAL_LABELS_FB 1
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#define LOCAL_LABEL(name) (name[0] == '.' && name[1] == 'L')
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#define LOCAL_LABELS_FB 1
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/* This expression evaluates to true if the relocation is for a local
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object for which we still want to do the relocation at runtime.
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@ -168,7 +168,6 @@ struct fix;
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# define md_elf_section_change_hook() arm_elf_change_section ()
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# define md_elf_section_type(str, len) arm_elf_section_type (str, len)
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# define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
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# define LOCAL_LABEL_PREFIX '.'
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# define TC_SEGMENT_INFO_TYPE struct arm_segment_info_type
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enum mstate
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@ -1,3 +1,8 @@
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2005-06-13 Zack Weinberg <zack@codesourcery.com>
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* gas/arm/thumb.s: Only branch to labels defined in this file.
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* gas/arm/thumb.d, gas/arm/thumb32.d: Adjust expected output.
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2005-06-01 Maciej W. Rozycki <macro@linux-mips.org>
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* gas/mips/ldstla-32-1.l: Update to handle leading zeroes.
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@ -119,68 +119,41 @@ Disassembly of section \.text:
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0+0de <[^>]+> 2f68 cmp r7, #104
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0+0e0 <[^>]+> 46c0 nop \(mov r8, r8\)
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0+0e2 <[^>]+> 46c0 nop \(mov r8, r8\)
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0+0e4 <[^>]+> ea000037 b 0+0e4 <[^>]+>
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e4: R_ARM_PC24 \.text
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0+0e8 <[^>]+> eafffffe b 0+000 <[^>]+>
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e8: R_ARM_PC24 \.wombat
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0+0ec <[^>]+> eb000037 bl 0+0e4 <[^>]+>
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ec: R_ARM_PC24 \.text
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0+0f0 <[^>]+> ebfffffe bl 0+000 <[^>]+>
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f0: R_ARM_PC24 \.wombat
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0+0e4 <[^>]+> eafffffe b 0+0e4 <[^>]+>
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0+0e8 <[^>]+> ea000011 b 0+134 <[^>]+>
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0+0ec <[^>]+> ebfffffc bl 0+0e4 <[^>]+>
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0+0f0 <[^>]+> eb00000f bl 0+134 <[^>]+>
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0+0f4 <[^>]+> e12fff10 bx r0
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0+0f8 <[^>]+> ef123456 swi 0x00123456
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0+0fc <[^>]+> a004 add r0, pc, #16 \(adr r0,0+110 <[^>]+>\)
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0+0fe <[^>]+> e77f b.n 0+000 <[^>]+>
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0+100 <[^>]+> e7fe b.n 0+000 <[^>]+>
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100: R_ARM_THM_JUMP11 \.wombat
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0+102 <[^>]+> f7ff fffe bl 0+000 <[^>]+>
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102: R_ARM_THM_CALL \.text
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0+106 <[^>]+> f7ff fffe bl 0+000 <[^>]+>
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106: R_ARM_THM_CALL \.wombat
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0+100 <[^>]+> e018 b.n 0+134 <[^>]+>
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0+102 <[^>]+> f7ff ff7d bl 0+000 <[^>]+>
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0+106 <[^>]+> f000 f815 bl 0+134 <[^>]+>
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0+10a <[^>]+> 4700 bx r0
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0+10c <[^>]+> dfff swi 255
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\.\.\.
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0+110 <[^>]+> d0fe beq.n 0+000 <[^>]+>
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110: R_ARM_THM_JUMP8 \.wombat
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0+112 <[^>]+> d1fe bne.n 0+000 <[^>]+>
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112: R_ARM_THM_JUMP8 \.wombat
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0+114 <[^>]+> d2fe bcs.n 0+000 <[^>]+>
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114: R_ARM_THM_JUMP8 \.wombat
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0+116 <[^>]+> d3fe bcc.n 0+000 <[^>]+>
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116: R_ARM_THM_JUMP8 \.wombat
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0+118 <[^>]+> d4fe bmi.n 0+000 <[^>]+>
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118: R_ARM_THM_JUMP8 \.wombat
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0+11a <[^>]+> d5fe bpl.n 0+000 <[^>]+>
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11a: R_ARM_THM_JUMP8 \.wombat
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0+11c <[^>]+> d6fe bvs.n 0+000 <[^>]+>
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11c: R_ARM_THM_JUMP8 \.wombat
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0+11e <[^>]+> d7fe bvc.n 0+000 <[^>]+>
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11e: R_ARM_THM_JUMP8 \.wombat
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0+120 <[^>]+> d8fe bhi.n 0+000 <[^>]+>
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120: R_ARM_THM_JUMP8 \.wombat
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0+122 <[^>]+> d9fe bls.n 0+000 <[^>]+>
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122: R_ARM_THM_JUMP8 \.wombat
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0+124 <[^>]+> dafe bge.n 0+000 <[^>]+>
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124: R_ARM_THM_JUMP8 \.wombat
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0+126 <[^>]+> dcfe bgt.n 0+000 <[^>]+>
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126: R_ARM_THM_JUMP8 \.wombat
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0+128 <[^>]+> dbfe blt.n 0+000 <[^>]+>
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128: R_ARM_THM_JUMP8 \.wombat
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0+12a <[^>]+> dcfe bgt.n 0+000 <[^>]+>
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12a: R_ARM_THM_JUMP8 \.wombat
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0+12c <[^>]+> ddfe ble.n 0+000 <[^>]+>
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12c: R_ARM_THM_JUMP8 \.wombat
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0+12e <[^>]+> d8fe bhi.n 0+000 <[^>]+>
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12e: R_ARM_THM_JUMP8 \.wombat
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0+130 <[^>]+> d3fe bcc.n 0+000 <[^>]+>
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130: R_ARM_THM_JUMP8 \.wombat
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0+132 <[^>]+> d3fe bcc.n 0+000 <[^>]+>
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132: R_ARM_THM_JUMP8 \.wombat
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0+134 <[^>]+> f000 fc9a bl 0+938 <[^>]+>
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134: R_ARM_THM_CALL \.text
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0+110 <[^>]+> d010 beq.n 0+134 <[^>]+>
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0+112 <[^>]+> d10f bne.n 0+134 <[^>]+>
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0+114 <[^>]+> d20e bcs.n 0+134 <[^>]+>
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0+116 <[^>]+> d30d bcc.n 0+134 <[^>]+>
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0+118 <[^>]+> d40c bmi.n 0+134 <[^>]+>
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0+11a <[^>]+> d50b bpl.n 0+134 <[^>]+>
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0+11c <[^>]+> d60a bvs.n 0+134 <[^>]+>
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0+11e <[^>]+> d709 bvc.n 0+134 <[^>]+>
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0+120 <[^>]+> d808 bhi.n 0+134 <[^>]+>
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0+122 <[^>]+> d907 bls.n 0+134 <[^>]+>
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0+124 <[^>]+> da06 bge.n 0+134 <[^>]+>
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0+126 <[^>]+> dc05 bgt.n 0+134 <[^>]+>
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0+128 <[^>]+> db04 blt.n 0+134 <[^>]+>
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0+12a <[^>]+> dc03 bgt.n 0+134 <[^>]+>
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0+12c <[^>]+> dd02 ble.n 0+134 <[^>]+>
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0+12e <[^>]+> d801 bhi.n 0+134 <[^>]+>
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0+130 <[^>]+> d300 bcc.n 0+134 <[^>]+>
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0+132 <[^>]+> d3ff bcc.n 0+134 <[^>]+>
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0+134 <[^>]+> f000 fc00 bl 0+938 <[^>]+>
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\.\.\.
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0+938 <[^>]+> f000 f898 bl 0+134 <[^>]+>
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938: R_ARM_THM_CALL \.text
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0+938 <[^>]+> f7ff fbfc bl 0+134 <[^>]+>
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0+93c <[^>]+> 4801 ldr r0, \[pc, #4\] \(0+944 <[^>]+>\)
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0+93e <[^>]+> 4801 ldr r0, \[pc, #4\] \(0+944 <[^>]+>\)
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0+940 <[^>]+> 4801 ldr r0, \[pc, #4\] \(0+948 <[^>]+>\)
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@ -145,9 +145,9 @@ near:
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.arm
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.localbar:
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b .localbar
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b .wombat
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b .back
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bl .localbar
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bl .wombat
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bl .back
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bx r0
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swi 0x123456
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@ -159,33 +159,33 @@ morethumb:
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adr r0, forwardonly
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b .foo
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b .wombat
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b .back
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bl .foo
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bl .wombat
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bl .back
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bx r0
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swi 0xff
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.align 0
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forwardonly:
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beq .wombat
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bne .wombat
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bcs .wombat
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bcc .wombat
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bmi .wombat
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bpl .wombat
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bvs .wombat
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bvc .wombat
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bhi .wombat
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bls .wombat
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bge .wombat
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bgt .wombat
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blt .wombat
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bgt .wombat
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ble .wombat
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bhi .wombat
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blo .wombat
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bul .wombat
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beq .back
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bne .back
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bcs .back
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bcc .back
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bmi .back
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bpl .back
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bvs .back
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bvc .back
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bhi .back
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bls .back
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bge .back
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bgt .back
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blt .back
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bgt .back
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ble .back
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bhi .back
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blo .back
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bul .back
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.back:
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bl .local
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@ -295,14 +295,10 @@ Disassembly of section .text:
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0+3cc <[^>]+> f340 800c ble\.w 0+3e8 <[^>]+>
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0+3d0 <[^>]+> f7ff bfae b\.w 0+330 <[^>]+>
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0+3d4 <[^>]+> f000 b808 b\.w 0+3e8 <[^>]+>
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0+3d8 <[^>]+> f000 f996 bl 0+330 <[^>]+>
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3d8: R_ARM_THM_CALL \.text
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0+3dc <[^>]+> f000 f9f2 bl 0+3e8 <[^>]+>
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3dc: R_ARM_THM_CALL \.text
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0+3e0 <[^>]+> f000 e996 blx 0+330 <[^>]+>
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3e0: R_ARM_THM_XPC22 \.text
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0+3e4 <[^>]+> f000 e9f2 blx 0+3e8 <[^>]+>
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3e4: R_ARM_THM_XPC22 \.text
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0+3d8 <[^>]+> f7ff ffaa bl 0+330 <[^>]+>
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0+3dc <[^>]+> f000 f804 bl 0+3e8 <[^>]+>
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0+3e0 <[^>]+> f7ff efa6 blx 0+330 <[^>]+>
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0+3e4 <[^>]+> f000 e800 blx 0+3e8 <[^>]+>
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0+3e8 <[^>]+> 4748 bx r9
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0+3ea <[^>]+> 4780 blx r0
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0+3ec <[^>]+> 47c8 blx r9
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Loading…
Add table
Reference in a new issue