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Add -mrelax-relocations= to x86 assembler
The x86 relax relocations introduced in binutils 2.26 aren't supported by linker on Solaris older than Solaris 12. To use x86 assembler with older Solaris linker, this patch adds 1. A command line option -mrelax-relocations= to x86 assembler to control whether to generate relax relocations. 2. A configure option --enable-x86-relax-relocations to decide whether x86 assembler should generate relax relocations by default. It is defaulted to yes, except for x86 Solaris targets older than Solaris 12. gas/ PR gas/19520 * NEWS: Mention new command line option -mrelax-relocations and new configure option --enable-x86-relax-relocations for x86 target. * config.in: Regenerated. * configure.ac: Add --enable-x86-relax-relocations. (ac_default_x86_relax_relocations): New. Default to 1 except for x86 Solaris targets older than Solaris 12. (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS): Define. * configure: Likewise. * config/tc-i386.c (generate_relax_relocations): New. (OPTION_MRELAX_RELOCATIONS): Likewise. (output_disp): Don't generate relax relocations if generate_relax_relocations is 0. (md_longopts): Add -mrelax-relocations. (md_show_usage): Likewise. (md_parse_option): Handle OPTION_MRELAX_RELOCATIONS. * doc/c-i386.texi: Document -mrelax-relocations=. * testsuite/gas/i386/got-no-relax.d: New file. * testsuite/gas/i386/x86-64-gotpcrel-no-relax.d: Likewise. * testsuite/gas/i386/got.d: Pass -mrelax-relocations=yes to as. * testsuite/gas/i386/localpic.d: Likewise. * testsuite/gas/i386/mixed-mode-reloc32.d: Likewise. * testsuite/gas/i386/reloc32.d: Likewise. * testsuite/gas/i386/x86-64-gotpcrel.d: Likewise. * testsuite/gas/i386/x86-64-localpic.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-gotpcrel.d: Likewise. * testsuite/gas/i386/ilp32/x86-64-localpic.d: Likewise. * testsuite/gas/i386/i386.exp: Run got-no-relax and x86-64-gotpcrel-no-relax. ld/ PR gas/19520 * testsuite/ld-i386/branch1.d: Pass -mrelax-relocations=yes to as. * testsuite/ld-i386/call1.d: Likewise. * testsuite/ld-i386/call2.d: Likewise. * testsuite/ld-i386/call3a.d: Likewise. * testsuite/ld-i386/call3b.d: Likewise. * testsuite/ld-i386/call3c.d: Likewise. * testsuite/ld-i386/call3d.d: Likewise. * testsuite/ld-i386/call3e.d: Likewise. * testsuite/ld-i386/call3f.d: Likewise. * testsuite/ld-i386/call3g.d: Likewise. * testsuite/ld-i386/call3h.d: Likewise. * testsuite/ld-i386/jmp1.d: Likewise. * testsuite/ld-i386/jmp2.d: Likewise. * testsuite/ld-i386/lea1c.d: Likewise. * testsuite/ld-i386/load1.d: Likewise. * testsuite/ld-i386/load2.d: Likewise. * testsuite/ld-i386/load3.d: Likewise. * testsuite/ld-i386/load4a.d: Likewise. * testsuite/ld-i386/load5a.d: Likewise. * testsuite/ld-i386/mov2b.d: Likewise. * testsuite/ld-i386/mov3.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-5r-local-x86-64.d: Likewise. * testsuite/ld-x86-64/call1a.d: Likewise. * testsuite/ld-x86-64/call1b.d: Likewise. * testsuite/ld-x86-64/call1c.d: Likewise. * testsuite/ld-x86-64/call1d.d: Likewise. * testsuite/ld-x86-64/call1e.d: Likewise. * testsuite/ld-x86-64/call1f.d: Likewise. * testsuite/ld-x86-64/call1h.d: Likewise. * testsuite/ld-x86-64/call1i.d: Likewise. * testsuite/ld-x86-64/load1a.d: Likewise. * testsuite/ld-x86-64/load1b.d: Likewise. * testsuite/ld-i386/got1a.S: Load GOT into %ecx and use it. * testsuite/ld-i386/got1.dd: Updated. * testsuite/ld-i386/got1d.S (1): Removed. * testsuite/ld-i386/i386.exp: Add -Wa,-mrelax-relocations=yes. * testsuite/ld-x86-64/x86-64.exp: Likewise.
This commit is contained in:
H.J. Lu
@ -2,6 +2,39 @@
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* config/tc-msp430.h (DWARF2_ADDR_SIZE): Set to 4.
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2016-02-03 H.J. Lu <hongjiu.lu@intel.com>
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PR gas/19520
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* NEWS: Mention new command line option -mrelax-relocations and
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new configure option --enable-x86-relax-relocations for x86
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target.
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* config.in: Regenerated.
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* configure.ac: Add --enable-x86-relax-relocations.
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(ac_default_x86_relax_relocations): New. Default to 1 except
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for x86 Solaris targets older than Solaris 12.
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(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS): Define.
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* configure: Likewise.
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* config/tc-i386.c (generate_relax_relocations): New.
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(OPTION_MRELAX_RELOCATIONS): Likewise.
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(output_disp): Don't generate relax relocations if
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generate_relax_relocations is 0.
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(md_longopts): Add -mrelax-relocations.
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(md_show_usage): Likewise.
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(md_parse_option): Handle OPTION_MRELAX_RELOCATIONS.
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* doc/c-i386.texi: Document -mrelax-relocations=.
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* testsuite/gas/i386/got-no-relax.d: New file.
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* testsuite/gas/i386/x86-64-gotpcrel-no-relax.d: Likewise.
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* testsuite/gas/i386/got.d: Pass -mrelax-relocations=yes to as.
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* testsuite/gas/i386/localpic.d: Likewise.
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* testsuite/gas/i386/mixed-mode-reloc32.d: Likewise.
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* testsuite/gas/i386/reloc32.d: Likewise.
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* testsuite/gas/i386/x86-64-gotpcrel.d: Likewise.
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* testsuite/gas/i386/x86-64-localpic.d: Likewise.
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* testsuite/gas/i386/ilp32/x86-64-gotpcrel.d: Likewise.
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* testsuite/gas/i386/ilp32/x86-64-localpic.d: Likewise.
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* testsuite/gas/i386/i386.exp: Run got-no-relax and
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x86-64-gotpcrel-no-relax.
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2016-02-03 H.J. Lu <hongjiu.lu@intel.com>
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* NEWS: Mention new command line option -mfence-as-lock-add=yes
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7
gas/NEWS
7
gas/NEWS
@ -1,5 +1,12 @@
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-*- text -*-
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* Add a configure option --enable-x86-relax-relocations to decide whether
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x86 assembler should generate relax relocations by default. Default to
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yes, except for x86 Solaris targets older than Solaris 12.
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* New command line option -mrelax-relocations= for x86 target to control
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whether to generate relax relocations.
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* New command line option -mfence-as-lock-add=yes for x86 target to encode
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lfence, mfence and sfence as "lock addl $0x0, (%[re]sp)".
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@ -39,6 +39,9 @@
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/* Define if you want compressed debug sections by default. */
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#undef DEFAULT_FLAG_COMPRESS_DEBUG
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/* Define to 1 if you want to generate x86 relax relocations by default. */
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#undef DEFAULT_GENERATE_X86_RELAX_RELOCATIONS
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/* Supported emulations. */
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#undef EMULATIONS
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@ -556,6 +556,11 @@ static int omit_lock_prefix = 0;
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"lock addl $0, (%{re}sp)". */
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static int avoid_fence = 0;
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/* 1 if the assembler should generate relax relocations. */
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static int generate_relax_relocations
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= DEFAULT_GENERATE_X86_RELAX_RELOCATIONS;
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static enum check_kind
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{
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check_none = 0,
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@ -7267,9 +7272,14 @@ output_disp (fragS *insn_start_frag, offsetT insn_start_off)
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/* Check for "call/jmp *mem", "mov mem, %reg",
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"test %reg, mem" and "binop mem, %reg" where binop
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is one of adc, add, and, cmp, or, sbb, sub, xor
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instructions. */
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if ((i.rm.mode == 2
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|| (i.rm.mode == 0 && i.rm.regmem == 5))
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instructions. Always generate R_386_GOT32X for
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"sym*GOT" operand in 32-bit mode. */
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if ((generate_relax_relocations
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|| (!object_64bit
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&& i.rm.mode == 0
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&& i.rm.regmem == 5))
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&& (i.rm.mode == 2
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|| (i.rm.mode == 0 && i.rm.regmem == 5))
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&& ((i.operands == 1
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&& i.tm.base_opcode == 0xff
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&& (i.rm.reg == 2 || i.rm.reg == 4))
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@ -9643,6 +9653,7 @@ const char *md_shortopts = "qn";
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#define OPTION_MAMD64 (OPTION_MD_BASE + 22)
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#define OPTION_MINTEL64 (OPTION_MD_BASE + 23)
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#define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24)
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#define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 25)
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struct option md_longopts[] =
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{
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@ -9675,6 +9686,7 @@ struct option md_longopts[] =
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#endif
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{"momit-lock-prefix", required_argument, NULL, OPTION_MOMIT_LOCK_PREFIX},
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{"mfence-as-lock-add", required_argument, NULL, OPTION_MFENCE_AS_LOCK_ADD},
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{"mrelax-relocations", required_argument, NULL, OPTION_MRELAX_RELOCATIONS},
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{"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG},
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{"mamd64", no_argument, NULL, OPTION_MAMD64},
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{"mintel64", no_argument, NULL, OPTION_MINTEL64},
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@ -10003,6 +10015,15 @@ md_parse_option (int c, char *arg)
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as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg);
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break;
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case OPTION_MRELAX_RELOCATIONS:
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if (strcasecmp (arg, "yes") == 0)
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generate_relax_relocations = 1;
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else if (strcasecmp (arg, "no") == 0)
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generate_relax_relocations = 0;
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else
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as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg);
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break;
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case OPTION_MAMD64:
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cpu_arch_flags.bitfield.cpuamd64 = 1;
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cpu_arch_flags.bitfield.cpuintel64 = 0;
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@ -10187,6 +10208,9 @@ md_show_usage (FILE *stream)
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encode lfence, mfence and sfence as\n\
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lock addl $0x0, (%%{re}sp)\n"));
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fprintf (stream, _("\
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-mrelax-relocations=[no|yes]\n\
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generate relax relocations\n"));
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fprintf (stream, _("\
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-mamd64 accept only AMD64 ISA\n"));
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fprintf (stream, _("\
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-mintel64 accept only Intel64 ISA\n"));
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38
gas/configure
vendored
38
gas/configure
vendored
@ -765,6 +765,7 @@ enable_largefile
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enable_targets
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enable_checking
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enable_compressed_debug_sections
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enable_x86_relax_relocations
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enable_werror
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enable_build_warnings
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enable_nls
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@ -1415,6 +1416,8 @@ Optional Features:
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--enable-checking enable run-time checks
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--enable-compressed-debug-sections={all,gas,none}
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compress debug sections by default
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--enable-x86-relax-relocations
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generate x86 relax relocations by default
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--enable-werror treat compile warnings as errors
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--enable-build-warnings enable build-time compiler warnings
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--disable-nls do not use Native Language Support
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@ -10972,7 +10975,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<_LT_EOF
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#line 10975 "configure"
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#line 10978 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -11078,7 +11081,7 @@ else
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lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
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lt_status=$lt_dlunknown
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cat > conftest.$ac_ext <<_LT_EOF
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#line 11081 "configure"
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#line 11084 "configure"
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#include "confdefs.h"
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#if HAVE_DLFCN_H
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@ -11680,6 +11683,17 @@ if test "${enable_compressed_debug_sections+set}" = set; then :
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esac
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fi
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# PR gas/19520
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# Decide if x86 assembler should generate relax relocations.
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ac_default_x86_relax_relocations=unset
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# Provide a configure time option to override our default.
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# Check whether --enable-x86_relax_relocations was given.
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if test "${enable_x86_relax_relocations+set}" = set; then :
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enableval=$enable_x86_relax_relocations; case "${enableval}" in
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no) ac_default_x86_relax_relocations=0 ;;
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esac
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fi
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using_cgen=no
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@ -12085,6 +12099,17 @@ $as_echo "#define STRICTCOFF 1" >>confdefs.h
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;;
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i386-*-solaris2 \
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| x86_64-*-solaris2 \
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| i386-*-solaris2.[0-9] \
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| i386-*-solaris2.1[01] \
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| x86_64-*-solaris2.1[01])
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if test ${this_target} = $target \
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&& test ${ac_default_x86_relax_relocations} = unset; then
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ac_default_x86_relax_relocations=0
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fi
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;;
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i860-*-*)
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{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: GAS support for ${generic_target} is preliminary and a work in progress" >&5
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$as_echo "$as_me: WARNING: GAS support for ${generic_target} is preliminary and a work in progress" >&2;}
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@ -12505,6 +12530,15 @@ _ACEOF
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done
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if test ${ac_default_x86_relax_relocations} = unset; then
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ac_default_x86_relax_relocations=1
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fi
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cat >>confdefs.h <<_ACEOF
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#define DEFAULT_GENERATE_X86_RELAX_RELOCATIONS $ac_default_x86_relax_relocations
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_ACEOF
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if test x$ac_default_compressed_debug_sections = xyes ; then
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$as_echo "#define DEFAULT_FLAG_COMPRESS_DEBUG 1" >>confdefs.h
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@ -77,6 +77,17 @@ AC_ARG_ENABLE(compressed_debug_sections,
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*) ac_default_compressed_debug_sections=unset ;;
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esac])dnl
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# PR gas/19520
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# Decide if x86 assembler should generate relax relocations.
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ac_default_x86_relax_relocations=unset
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# Provide a configure time option to override our default.
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AC_ARG_ENABLE(x86_relax_relocations,
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AS_HELP_STRING([--enable-x86-relax-relocations],
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[generate x86 relax relocations by default]),
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[case "${enableval}" in
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no) ac_default_x86_relax_relocations=0 ;;
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esac])dnl
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using_cgen=no
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AM_BINUTILS_WARNINGS
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@ -168,6 +179,17 @@ for this_target in $target $canon_targets ; do
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AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
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;;
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i386-*-solaris2 \
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| x86_64-*-solaris2 \
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| i386-*-solaris2.[[0-9]] \
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| i386-*-solaris2.1[[01]] \
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| x86_64-*-solaris2.1[[01]])
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if test ${this_target} = $target \
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&& test ${ac_default_x86_relax_relocations} = unset; then
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ac_default_x86_relax_relocations=0
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fi
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;;
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i860-*-*)
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AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
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;;
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@ -549,6 +571,13 @@ changequote([,])dnl
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done
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if test ${ac_default_x86_relax_relocations} = unset; then
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ac_default_x86_relax_relocations=1
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fi
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AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
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$ac_default_x86_relax_relocations,
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[Define to 1 if you want to generate x86 relax relocations by default.])
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if test x$ac_default_compressed_debug_sections = xyes ; then
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AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
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fi
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@ -339,6 +339,18 @@ sfence as @samp{lock addl $0x0, (%rsp)} in 64-bit mode and
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@option{-mfence-as-lock-add=@var{no}} will encode lfence, mfence and
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sfence as usual, which is the default.
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@cindex @samp{-mrelax-relocations=} option, i386
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@cindex @samp{-mrelax-relocations=} option, x86-64
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@item -mrelax-relocations=@var{no}
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@itemx -mrelax-relocations=@var{yes}
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These options control whether the assembler should generate relax
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relocations, R_386_GOT32X, in 32-bit mode, or R_X86_64_GOTPCRELX and
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R_X86_64_REX_GOTPCRELX, in 64-bit mode.
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@option{-mrelax-relocations=@var{yes}} will generate relax relocations.
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@option{-mrelax-relocations=@var{no}} will not generate relax
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relocations. The default can be controlled by a configure option
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@option{--enable-x86-relax-relocations}.
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@cindex @samp{-mevexrcig=} option, i386
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@cindex @samp{-mevexrcig=} option, x86-64
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@item -mevexrcig=@var{rne}
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31
gas/testsuite/gas/i386/got-no-relax.d
Normal file
31
gas/testsuite/gas/i386/got-no-relax.d
Normal file
@ -0,0 +1,31 @@
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#source: got.s
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#as: -mrelax-relocations=no
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#objdump: -dwr
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.*: +file format .*
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Disassembly of section .text:
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0+ <_start>:
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[ ]*[a-f0-9]+: b8 00 00 00 00 mov \$0x0,%eax 1: R_386_GOT32 foo
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[ ]*[a-f0-9]+: 8b 05 00 00 00 00 mov 0x0,%eax 7: R_386_GOT32X foo
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[ ]*[a-f0-9]+: 8b 80 00 00 00 00 mov 0x0\(%eax\),%eax d: R_386_GOT32 foo
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[ ]*[a-f0-9]+: 05 00 00 00 00 add \$0x0,%eax 12: R_386_GOT32 foo
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[ ]*[a-f0-9]+: 03 05 00 00 00 00 add 0x0,%eax 18: R_386_GOT32X foo
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[ ]*[a-f0-9]+: 03 80 00 00 00 00 add 0x0\(%eax\),%eax 1e: R_386_GOT32 foo
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[ ]*[a-f0-9]+: ff 15 00 00 00 00 call \*0x0 24: R_386_GOT32X foo
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[ ]*[a-f0-9]+: ff 90 00 00 00 00 call \*0x0\(%eax\) 2a: R_386_GOT32 foo
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[ ]*[a-f0-9]+: ff 25 00 00 00 00 jmp \*0x0 30: R_386_GOT32X foo
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[ ]*[a-f0-9]+: ff a0 00 00 00 00 jmp \*0x0\(%eax\) 36: R_386_GOT32 foo
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[ ]*[a-f0-9]+: b8 00 00 00 00 mov \$0x0,%eax 3b: R_386_GOT32 foo
|
||||
[ ]*[a-f0-9]+: 8b 05 00 00 00 00 mov 0x0,%eax 41: R_386_GOT32X foo
|
||||
[ ]*[a-f0-9]+: 8b 80 00 00 00 00 mov 0x0\(%eax\),%eax 47: R_386_GOT32 foo
|
||||
[ ]*[a-f0-9]+: 05 00 00 00 00 add \$0x0,%eax 4c: R_386_GOT32 foo
|
||||
[ ]*[a-f0-9]+: 03 05 00 00 00 00 add 0x0,%eax 52: R_386_GOT32X foo
|
||||
[ ]*[a-f0-9]+: 03 80 00 00 00 00 add 0x0\(%eax\),%eax 58: R_386_GOT32 foo
|
||||
[ ]*[a-f0-9]+: ff 90 00 00 00 00 call \*0x0\(%eax\) 5e: R_386_GOT32 foo
|
||||
[ ]*[a-f0-9]+: ff 15 00 00 00 00 call \*0x0 64: R_386_GOT32X foo
|
||||
[ ]*[a-f0-9]+: ff a0 00 00 00 00 jmp \*0x0\(%eax\) 6a: R_386_GOT32 foo
|
||||
[ ]*[a-f0-9]+: ff 25 00 00 00 00 jmp \*0x0 70: R_386_GOT32X foo
|
||||
#pass
|
||||
@ -1,3 +1,4 @@
|
||||
#as: -mrelax-relocations=yes
|
||||
#objdump: -dwr
|
||||
|
||||
.*: +file format .*
|
||||
|
||||
@ -408,6 +408,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_32_check]]
|
||||
run_dump_test "relax-4"
|
||||
|
||||
run_dump_test "got"
|
||||
run_dump_test "got-no-relax"
|
||||
|
||||
if {![istarget "*-*-nacl*"]} then {
|
||||
run_dump_test "iamcu-1"
|
||||
@ -788,6 +789,7 @@ if [expr ([istarget "i*86-*-*"] || [istarget "x86_64-*-*"]) && [gas_64_check]] t
|
||||
run_list_test "x86-64-branch-3" "-al -mintel64"
|
||||
|
||||
run_dump_test "x86-64-gotpcrel"
|
||||
run_dump_test "x86-64-gotpcrel-no-relax"
|
||||
}
|
||||
|
||||
set ASFLAGS "$old_ASFLAGS"
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
#source: ../x86-64-gotpcrel.s
|
||||
#as: --x32 -mrelax-relocations=yes
|
||||
#objdump: -dwr
|
||||
#name: x86-64 (ILP32) gotpcrel
|
||||
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
#source: ../x86-64-localpic.s
|
||||
#as: --x32 -mrelax-relocations=yes
|
||||
#readelf: -rsW
|
||||
#name: x86-64 (ILP32) local PIC
|
||||
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
#as: -mrelax-relocations=yes
|
||||
#readelf: -rs
|
||||
#name: i386 local PIC
|
||||
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
#as: -mrelax-relocations=yes
|
||||
#objdump: -r
|
||||
#source: mixed-mode-reloc.s
|
||||
#name: x86 mixed mode relocs (32-bit object)
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
#as: -mrelax-relocations=yes
|
||||
#objdump: -Drw
|
||||
#name: i386 relocs
|
||||
|
||||
|
||||
27
gas/testsuite/gas/i386/x86-64-gotpcrel-no-relax.d
Normal file
27
gas/testsuite/gas/i386/x86-64-gotpcrel-no-relax.d
Normal file
@ -0,0 +1,27 @@
|
||||
#source: x86-64-gotpcrel.s
|
||||
#as: -mrelax-relocations=no
|
||||
#objdump: -dwr
|
||||
|
||||
.*: +file format .*
|
||||
|
||||
|
||||
Disassembly of section .text:
|
||||
|
||||
0+ <_start>:
|
||||
[ ]*[a-f0-9]+: 48 c7 c0 00 00 00 00 mov \$0x0,%rax 3: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: 48 8b 04 25 00 00 00 00 mov 0x0,%rax b: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: 48 8b 05 00 00 00 00 mov 0x0\(%rip\),%rax # 16 <_start\+0x16> 12: R_X86_64_GOTPCREL foo-0x4
|
||||
[ ]*[a-f0-9]+: 48 8b 81 00 00 00 00 mov 0x0\(%rcx\),%rax 19: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: ff 15 00 00 00 00 callq \*0x0\(%rip\) # 23 <_start\+0x23> 1f: R_X86_64_GOTPCREL foo-0x4
|
||||
[ ]*[a-f0-9]+: ff 90 00 00 00 00 callq \*0x0\(%rax\) 25: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: ff 25 00 00 00 00 jmpq \*0x0\(%rip\) # 2f <_start\+0x2f> 2b: R_X86_64_GOTPCREL foo-0x4
|
||||
[ ]*[a-f0-9]+: ff a1 00 00 00 00 jmpq \*0x0\(%rcx\) 31: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: 48 c7 c0 00 00 00 00 mov \$0x0,%rax 38: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: 48 8b 04 25 00 00 00 00 mov 0x0,%rax 40: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: 48 8b 05 00 00 00 00 mov 0x0\(%rip\),%rax # 4b <_start\+0x4b> 47: R_X86_64_GOTPCREL foo-0x4
|
||||
[ ]*[a-f0-9]+: 48 8b 81 00 00 00 00 mov 0x0\(%rcx\),%rax 4e: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: ff 15 00 00 00 00 callq \*0x0\(%rip\) # 58 <_start\+0x58> 54: R_X86_64_GOTPCREL foo-0x4
|
||||
[ ]*[a-f0-9]+: ff 90 00 00 00 00 callq \*0x0\(%rax\) 5a: R_X86_64_GOTPCREL foo
|
||||
[ ]*[a-f0-9]+: ff 25 00 00 00 00 jmpq \*0x0\(%rip\) # 64 <_start\+0x64> 60: R_X86_64_GOTPCREL foo-0x4
|
||||
[ ]*[a-f0-9]+: ff a1 00 00 00 00 jmpq \*0x0\(%rcx\) 66: R_X86_64_GOTPCREL foo
|
||||
#pass
|
||||
@ -1,3 +1,4 @@
|
||||
#as: -mrelax-relocations=yes
|
||||
#objdump: -dwr
|
||||
|
||||
.*: +file format .*
|
||||
|
||||
@ -1,3 +1,4 @@
|
||||
#as: -mrelax-relocations=yes
|
||||
#readelf: -rsW
|
||||
#name: x86-64 local PIC
|
||||
|
||||
|
||||
43
ld/ChangeLog
43
ld/ChangeLog
@ -1,3 +1,46 @@
|
||||
2016-02-03 H.J. Lu <hongjiu.lu@intel.com>
|
||||
|
||||
PR gas/19520
|
||||
* testsuite/ld-i386/branch1.d: Pass -mrelax-relocations=yes to as.
|
||||
* testsuite/ld-i386/call1.d: Likewise.
|
||||
* testsuite/ld-i386/call2.d: Likewise.
|
||||
* testsuite/ld-i386/call3a.d: Likewise.
|
||||
* testsuite/ld-i386/call3b.d: Likewise.
|
||||
* testsuite/ld-i386/call3c.d: Likewise.
|
||||
* testsuite/ld-i386/call3d.d: Likewise.
|
||||
* testsuite/ld-i386/call3e.d: Likewise.
|
||||
* testsuite/ld-i386/call3f.d: Likewise.
|
||||
* testsuite/ld-i386/call3g.d: Likewise.
|
||||
* testsuite/ld-i386/call3h.d: Likewise.
|
||||
* testsuite/ld-i386/jmp1.d: Likewise.
|
||||
* testsuite/ld-i386/jmp2.d: Likewise.
|
||||
* testsuite/ld-i386/lea1c.d: Likewise.
|
||||
* testsuite/ld-i386/load1.d: Likewise.
|
||||
* testsuite/ld-i386/load2.d: Likewise.
|
||||
* testsuite/ld-i386/load3.d: Likewise.
|
||||
* testsuite/ld-i386/load4a.d: Likewise.
|
||||
* testsuite/ld-i386/load5a.d: Likewise.
|
||||
* testsuite/ld-i386/mov2b.d: Likewise.
|
||||
* testsuite/ld-i386/mov3.d: Likewise.
|
||||
* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
|
||||
* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
|
||||
* testsuite/ld-ifunc/ifunc-5r-local-x86-64.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1a.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1b.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1c.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1d.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1e.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1f.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1h.d: Likewise.
|
||||
* testsuite/ld-x86-64/call1i.d: Likewise.
|
||||
* testsuite/ld-x86-64/load1a.d: Likewise.
|
||||
* testsuite/ld-x86-64/load1b.d: Likewise.
|
||||
* testsuite/ld-i386/got1a.S: Load GOT into %ecx and use it.
|
||||
* testsuite/ld-i386/got1.dd: Updated.
|
||||
* testsuite/ld-i386/got1d.S (1): Removed.
|
||||
* testsuite/ld-i386/i386.exp: Add -Wa,-mrelax-relocations=yes.
|
||||
* testsuite/ld-x86-64/x86-64.exp: Likewise.
|
||||
|
||||
2016-02-02 H.J. Lu <hongjiu.lu@intel.com>
|
||||
|
||||
PR ld/18591
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -shared -melf_i386
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -shared -melf_i386
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=prefix-addr
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=prefix-nop
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=suffix-nop
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=prefix-0x67
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=prefix-0x90
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=suffix-0x90
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call3.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -z call-nop=suffix-144
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -10,6 +10,8 @@
|
||||
[ ]*[a-f0-9]+: ff d0 call \*%eax
|
||||
[ ]*[a-f0-9]+: [ a-f0-9]+ mov *0x[a-f0-9]+,%eax
|
||||
[ ]*[a-f0-9]+: ff d0 call \*%eax
|
||||
[ ]*[a-f0-9]+: [ a-f0-9]+ call [a-f0-9]+ <__x86.get_pc_thunk.cx>
|
||||
[ ]*[a-f0-9]+: [ a-f0-9]+ add \$0x[a-f0-9]+,%ecx
|
||||
[ ]*[a-f0-9]+: [ a-f0-9]+ lea *0x[a-f0-9]+,%ecx
|
||||
[ ]*[a-f0-9]+: ff d1 call \*%ecx
|
||||
[ ]*[a-f0-9]+: 83 ec 0c sub \$0xc,%esp
|
||||
|
||||
@ -12,10 +12,19 @@ main:
|
||||
call *%eax
|
||||
movl plt@GOT, %eax
|
||||
call *%eax
|
||||
movl foo@GOT(%ebx), %ecx
|
||||
call __x86.get_pc_thunk.cx
|
||||
addl $_GLOBAL_OFFSET_TABLE_, %ecx
|
||||
movl foo@GOT(%ecx), %ecx
|
||||
call *%ecx
|
||||
subl $12, %esp
|
||||
pushl $0
|
||||
pushl $0 # Push a dummy return address onto stack.
|
||||
jmp *myexit@GOT
|
||||
.size main, .-main
|
||||
.section .text.__x86.get_pc_thunk.cx,"axG",@progbits,__x86.get_pc_thunk.cx,comdat
|
||||
.globl __x86.get_pc_thunk.cx
|
||||
.hidden __x86.get_pc_thunk.cx
|
||||
.type __x86.get_pc_thunk.cx, @function
|
||||
__x86.get_pc_thunk.cx:
|
||||
movl (%esp), %ecx
|
||||
ret
|
||||
|
||||
@ -19,7 +19,6 @@ plt:
|
||||
pushl %esi
|
||||
pushl %ebx
|
||||
call __x86.get_pc_thunk.bx
|
||||
1:
|
||||
addl $_GLOBAL_OFFSET_TABLE_, %ebx
|
||||
subl $20, %esp
|
||||
leal __FUNCTION__.1866@GOTOFF(%ebx), %esi
|
||||
|
||||
@ -357,7 +357,7 @@ if { [isnative]
|
||||
[list \
|
||||
"Build libplt-main1.a" \
|
||||
"" \
|
||||
"-fPIC" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes" \
|
||||
{ plt-main1.c } \
|
||||
{{readelf {-Wr} plt-main1.rd}} \
|
||||
"libplt-main1.a" \
|
||||
@ -365,7 +365,7 @@ if { [isnative]
|
||||
[list \
|
||||
"Build libplt-main2.a" \
|
||||
"" \
|
||||
"-fPIC" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes" \
|
||||
{ plt-main2.c } \
|
||||
{{readelf {-Wr} plt-main2.rd}} \
|
||||
"libplt-main2.a" \
|
||||
@ -373,7 +373,7 @@ if { [isnative]
|
||||
[list \
|
||||
"Build libplt-main3.a" \
|
||||
"" \
|
||||
"-fPIC $PLT_CFLAGS" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes $PLT_CFLAGS" \
|
||||
{ plt-main3.c } \
|
||||
{{readelf {-Wr} plt-main3.rd}} \
|
||||
"libplt-main3.a" \
|
||||
@ -381,7 +381,7 @@ if { [isnative]
|
||||
[list \
|
||||
"Build libplt-main4.a" \
|
||||
"" \
|
||||
"-fPIC $PLT_CFLAGS" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes $PLT_CFLAGS" \
|
||||
{ plt-main4.c } \
|
||||
{{readelf {-Wr} plt-main4.rd}} \
|
||||
"libplt-main4.a" \
|
||||
@ -535,7 +535,7 @@ if { [isnative]
|
||||
[list \
|
||||
"Build gotpc1" \
|
||||
"tmpdir/got1d.so" \
|
||||
"" \
|
||||
"-Wa,-mrelax-relocations=yes" \
|
||||
{ got1a.S got1b.c got1c.c } \
|
||||
{{objdump {-dw} got1.dd}} \
|
||||
"got1" \
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -shared -melf_i386
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -shared -melf_i386
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: lea1.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386
|
||||
#objdump: -dw --sym
|
||||
#notarget: i?86-*-nacl* x86_64-*-nacl*
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -shared
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,3 +1,3 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386 -shared
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#source: load4.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -Bsymbolic -shared -melf_i386
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#source: load5.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -Bsymbolic -shared -melf_i386
|
||||
#error: direct GOT relocation R_386_GOT32X against `foo' without base register can not be used when making a shared object
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: mov2.s
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -pie -melf_i386
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#as: --32
|
||||
#as: --32 -mrelax-relocations=yes
|
||||
#ld: -melf_i386
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64
|
||||
#objdump: -dw
|
||||
#target: x86_64-*-*
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64
|
||||
#objdump: -dw
|
||||
#target: x86_64-*-*
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: ifunc-5-local-x86-64.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -r -melf_x86_64
|
||||
#readelf: -r --wide
|
||||
#target: x86_64-*-*
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=prefix-addr
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=prefix-nop
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=suffix-nop
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=prefix-0x67
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=prefix-0x90
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=suffix-0x90
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64 -z call-nop=suffix-144
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: call1.s
|
||||
#as: --x32
|
||||
#as: --x32 -mrelax-relocations=yes
|
||||
#ld: -melf32_x86_64 -z call-nop=suffix-0x90
|
||||
#objdump: -dw
|
||||
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: load1.s
|
||||
#as: --64
|
||||
#as: --64 -mrelax-relocations=yes
|
||||
#ld: -melf_x86_64
|
||||
#objdump: -dw --sym
|
||||
#notarget: x86_64-*-nacl*
|
||||
|
||||
@ -1,5 +1,5 @@
|
||||
#source: load1.s
|
||||
#as: --x32
|
||||
#as: --x32 -mrelax-relocations=yes
|
||||
#ld: -melf32_x86_64
|
||||
#objdump: -dw --sym
|
||||
#notarget: x86_64-*-nacl*
|
||||
|
||||
@ -392,7 +392,7 @@ if { [isnative] && [which $CC] != 0 } {
|
||||
[list \
|
||||
"Build libplt-main1.a" \
|
||||
"" \
|
||||
"-fPIC" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes" \
|
||||
{ plt-main1.c } \
|
||||
{{readelf {-Wr} plt-main1.rd}} \
|
||||
"libplt-main1.a" \
|
||||
@ -400,7 +400,7 @@ if { [isnative] && [which $CC] != 0 } {
|
||||
[list \
|
||||
"Build libplt-main2.a" \
|
||||
"" \
|
||||
"-fPIC" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes" \
|
||||
{ plt-main2.c } \
|
||||
{{readelf {-Wr} plt-main2.rd}} \
|
||||
"libplt-main2.a" \
|
||||
@ -408,7 +408,7 @@ if { [isnative] && [which $CC] != 0 } {
|
||||
[list \
|
||||
"Build libplt-main3.a" \
|
||||
"" \
|
||||
"-fPIC $PLT_CFLAGS" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes $PLT_CFLAGS" \
|
||||
{ plt-main3.c } \
|
||||
{{readelf {-Wr} plt-main3.rd}} \
|
||||
"libplt-main3.a" \
|
||||
@ -416,7 +416,7 @@ if { [isnative] && [which $CC] != 0 } {
|
||||
[list \
|
||||
"Build libplt-main4.a" \
|
||||
"" \
|
||||
"-fPIC $PLT_CFLAGS" \
|
||||
"-fPIC -Wa,-mrelax-relocations=yes $PLT_CFLAGS" \
|
||||
{ plt-main4.c } \
|
||||
{{readelf {-Wr} plt-main4.rd}} \
|
||||
"libplt-main4.a" \
|
||||
@ -546,7 +546,7 @@ if { [isnative] && [which $CC] != 0 } {
|
||||
[list \
|
||||
"Build gotpcrel1" \
|
||||
"tmpdir/gotpcrel1d.so" \
|
||||
"" \
|
||||
"-Wa,-mrelax-relocations=yes" \
|
||||
{ gotpcrel1a.S gotpcrel1b.c gotpcrel1c.c } \
|
||||
{{objdump {-dw} gotpcrel1.dd}} \
|
||||
"gotpcrel1" \
|
||||
|
||||
Reference in New Issue
Block a user