From: H.J. Lu Date: Thu, 5 Jul 2018 16:24:07 +0000 (-0700) Subject: x86: Remove x86 ISA properties with empty bits X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=56ad703d56ffe5dc55d5e719a6ec41fd6cf9bfbe;p=binutils-gdb.git x86: Remove x86 ISA properties with empty bits There is no need to generate x86 ISA properties with empty bits in linker output. bfd/ PR ld/23372 * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Remove x86 ISA properties with empty bits. ld/ PR ld/23372 * testsuite/ld-i386/i386.exp: Run pr23372a and pr23372b. * testsuite/ld-i386/pr23372a.d: New file. * testsuite/ld-i386/pr23372a.s: Likewise. * testsuite/ld-i386/pr23372b.d: Likewise. * testsuite/ld-i386/pr23372b.s: Likewise. * testsuite/ld-i386/pr23372c.s: Likewise. * testsuite/ld-x86-64/pr23372a-x32.d: Likewise. * testsuite/ld-x86-64/pr23372a.d: Likewise. * testsuite/ld-x86-64/pr23372a.s: Likewise. * testsuite/ld-x86-64/pr23372b-x32.d: Likewise. * testsuite/ld-x86-64/pr23372b.d: Likewise. * testsuite/ld-x86-64/pr23372b.s: Likewise. * testsuite/ld-x86-64/pr23372c.s: Likewise. * testsuite/ld-x86-64/x86-64.exp: Run pr23372a, pr23372a-x32, pr23372b and pr23372b-x32. --- diff --git a/bfd/ChangeLog b/bfd/ChangeLog index ebc5eb725db..36e12e785dc 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2018-07-05 H.J. Lu + + PR ld/23372 + * elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Remove x86 + ISA properties with empty bits. + 2018-07-05 Nick Clifton * po/ru.po: Updated Russian translation. diff --git a/bfd/elfxx-x86.c b/bfd/elfxx-x86.c index 827bb6c1763..a2497aab863 100644 --- a/bfd/elfxx-x86.c +++ b/bfd/elfxx-x86.c @@ -2412,13 +2412,34 @@ _bfd_x86_elf_merge_gnu_properties (struct bfd_link_info *info, { number = aprop->u.number; aprop->u.number = number | bprop->u.number; - updated = number != (unsigned int) aprop->u.number; + /* Remove the property if ISA bits are empty. */ + if (aprop->u.number == 0) + { + aprop->pr_kind = property_remove; + updated = TRUE; + } + else + updated = number != (unsigned int) aprop->u.number; } else { - /* Return TRUE if APROP is NULL to indicate that BPROP should - be added to ABFD. */ - updated = aprop == NULL; + /* Only one of APROP and BPROP can be NULL. */ + if (aprop != NULL) + { + if (aprop->u.number == 0) + { + /* Remove APROP if ISA bits are empty. */ + aprop->pr_kind = property_remove; + updated = TRUE; + } + } + else + { + /* Return TRUE if APROP is NULL and ISA bits of BPROP + aren't empty to indicate that BPROP should be added + to ABFD. */ + updated = bprop->u.number != 0; + } } break; diff --git a/ld/ChangeLog b/ld/ChangeLog index a7143cdd453..d90c8d842f2 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,22 @@ +2018-07-05 H.J. Lu + + PR ld/23372 + * testsuite/ld-i386/i386.exp: Run pr23372a and pr23372b. + * testsuite/ld-i386/pr23372a.d: New file. + * testsuite/ld-i386/pr23372a.s: Likewise. + * testsuite/ld-i386/pr23372b.d: Likewise. + * testsuite/ld-i386/pr23372b.s: Likewise. + * testsuite/ld-i386/pr23372c.s: Likewise. + * testsuite/ld-x86-64/pr23372a-x32.d: Likewise. + * testsuite/ld-x86-64/pr23372a.d: Likewise. + * testsuite/ld-x86-64/pr23372a.s: Likewise. + * testsuite/ld-x86-64/pr23372b-x32.d: Likewise. + * testsuite/ld-x86-64/pr23372b.d: Likewise. + * testsuite/ld-x86-64/pr23372b.s: Likewise. + * testsuite/ld-x86-64/pr23372c.s: Likewise. + * testsuite/ld-x86-64/x86-64.exp: Run pr23372a, pr23372a-x32, + pr23372b and pr23372b-x32. + 2018-07-05 Nick Clifton * po/bg.po: Updated Bulgarian translation. diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp index bb91a760ca2..6d794fe653a 100644 --- a/ld/testsuite/ld-i386/i386.exp +++ b/ld/testsuite/ld-i386/i386.exp @@ -460,6 +460,8 @@ run_dump_test "pr22782" run_dump_test "pr22929" run_dump_test "pr23189" run_dump_test "pr23194" +run_dump_test "pr23372a" +run_dump_test "pr23372b" if { !([istarget "i?86-*-linux*"] || [istarget "i?86-*-gnu*"] diff --git a/ld/testsuite/ld-i386/pr23372a.d b/ld/testsuite/ld-i386/pr23372a.d new file mode 100644 index 00000000000..b75523bdc38 --- /dev/null +++ b/ld/testsuite/ld-i386/pr23372a.d @@ -0,0 +1,5 @@ +#source: pr23372a.s +#source: pr23372b.s +#as: --32 +#ld: -r -m elf_i386 +#readelf: -n diff --git a/ld/testsuite/ld-i386/pr23372a.s b/ld/testsuite/ld-i386/pr23372a.s new file mode 100644 index 00000000000..9849d620a1d --- /dev/null +++ b/ld/testsuite/ld-i386/pr23372a.s @@ -0,0 +1,18 @@ + .section ".note.gnu.property", "a" + .p2align 2 + .long 1f - 0f /* name length. */ + .long 4f - 1f /* data length. */ + /* NT_GNU_PROPERTY_TYPE_0 */ + .long 5 /* note type. */ +0: + .asciz "GNU" /* vendor name. */ +1: + .p2align 2 + /* GNU_PROPERTY_X86_ISA_1_USED */ + .long 0xc0000000 /* pr_type. */ + .long 3f - 2f /* pr_datasz. */ +2: + .long 0x0 +3: + .p2align 2 +4: diff --git a/ld/testsuite/ld-i386/pr23372b.d b/ld/testsuite/ld-i386/pr23372b.d new file mode 100644 index 00000000000..a8e9c819a4f --- /dev/null +++ b/ld/testsuite/ld-i386/pr23372b.d @@ -0,0 +1,5 @@ +#source: pr23372a.s +#source: pr23372c.s +#as: --32 +#ld: -r -m elf_i386 +#readelf: -n diff --git a/ld/testsuite/ld-i386/pr23372b.s b/ld/testsuite/ld-i386/pr23372b.s new file mode 100644 index 00000000000..9849d620a1d --- /dev/null +++ b/ld/testsuite/ld-i386/pr23372b.s @@ -0,0 +1,18 @@ + .section ".note.gnu.property", "a" + .p2align 2 + .long 1f - 0f /* name length. */ + .long 4f - 1f /* data length. */ + /* NT_GNU_PROPERTY_TYPE_0 */ + .long 5 /* note type. */ +0: + .asciz "GNU" /* vendor name. */ +1: + .p2align 2 + /* GNU_PROPERTY_X86_ISA_1_USED */ + .long 0xc0000000 /* pr_type. */ + .long 3f - 2f /* pr_datasz. */ +2: + .long 0x0 +3: + .p2align 2 +4: diff --git a/ld/testsuite/ld-i386/pr23372c.s b/ld/testsuite/ld-i386/pr23372c.s new file mode 100644 index 00000000000..3470dce6490 --- /dev/null +++ b/ld/testsuite/ld-i386/pr23372c.s @@ -0,0 +1,18 @@ + .section ".note.gnu.property", "a" + .p2align 2 + .long 1f - 0f /* name length. */ + .long 4f - 1f /* data length. */ + /* NT_GNU_PROPERTY_TYPE_0 */ + .long 5 /* note type. */ +0: + .asciz "GNU" /* vendor name. */ +1: + .p2align 2 + /* GNU_PROPERTY_X86_ISA_1_NEEDED */ + .long 0xc0000001 /* pr_type. */ + .long 3f - 2f /* pr_datasz. */ +2: + .long 0x0 +3: + .p2align 2 +4: diff --git a/ld/testsuite/ld-x86-64/pr23372a-x32.d b/ld/testsuite/ld-x86-64/pr23372a-x32.d new file mode 100644 index 00000000000..9f936423644 --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372a-x32.d @@ -0,0 +1,5 @@ +#source: pr23372a.s +#source: pr23372b.s +#as: --x32 +#ld: -r -m elf32_x86_64 +#readelf: -n diff --git a/ld/testsuite/ld-x86-64/pr23372a.d b/ld/testsuite/ld-x86-64/pr23372a.d new file mode 100644 index 00000000000..ee688fc2e27 --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372a.d @@ -0,0 +1,5 @@ +#source: pr23372a.s +#source: pr23372b.s +#as: --64 -defsym __64_bit__=1 +#ld: -r -m elf_x86_64 +#readelf: -n diff --git a/ld/testsuite/ld-x86-64/pr23372a.s b/ld/testsuite/ld-x86-64/pr23372a.s new file mode 100644 index 00000000000..639fc26de4c --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372a.s @@ -0,0 +1,30 @@ + .section ".note.gnu.property", "a" +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif + .long 1f - 0f /* name length. */ + .long 4f - 1f /* data length. */ + /* NT_GNU_PROPERTY_TYPE_0 */ + .long 5 /* note type. */ +0: + .asciz "GNU" /* vendor name. */ +1: +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif + /* GNU_PROPERTY_X86_ISA_1_USED */ + .long 0xc0000000 /* pr_type. */ + .long 3f - 2f /* pr_datasz. */ +2: + .long 0x0 +3: +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif +4: diff --git a/ld/testsuite/ld-x86-64/pr23372b-x32.d b/ld/testsuite/ld-x86-64/pr23372b-x32.d new file mode 100644 index 00000000000..5b0cf98618c --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372b-x32.d @@ -0,0 +1,5 @@ +#source: pr23372a.s +#source: pr23372c.s +#as: --x32 +#ld: -r -m elf32_x86_64 +#readelf: -n diff --git a/ld/testsuite/ld-x86-64/pr23372b.d b/ld/testsuite/ld-x86-64/pr23372b.d new file mode 100644 index 00000000000..727afa8ab54 --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372b.d @@ -0,0 +1,5 @@ +#source: pr23372a.s +#source: pr23372c.s +#as: --64 -defsym __64_bit__=1 +#ld: -r -m elf_x86_64 +#readelf: -n diff --git a/ld/testsuite/ld-x86-64/pr23372b.s b/ld/testsuite/ld-x86-64/pr23372b.s new file mode 100644 index 00000000000..639fc26de4c --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372b.s @@ -0,0 +1,30 @@ + .section ".note.gnu.property", "a" +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif + .long 1f - 0f /* name length. */ + .long 4f - 1f /* data length. */ + /* NT_GNU_PROPERTY_TYPE_0 */ + .long 5 /* note type. */ +0: + .asciz "GNU" /* vendor name. */ +1: +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif + /* GNU_PROPERTY_X86_ISA_1_USED */ + .long 0xc0000000 /* pr_type. */ + .long 3f - 2f /* pr_datasz. */ +2: + .long 0x0 +3: +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif +4: diff --git a/ld/testsuite/ld-x86-64/pr23372c.s b/ld/testsuite/ld-x86-64/pr23372c.s new file mode 100644 index 00000000000..b4eaf697779 --- /dev/null +++ b/ld/testsuite/ld-x86-64/pr23372c.s @@ -0,0 +1,30 @@ + .section ".note.gnu.property", "a" +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif + .long 1f - 0f /* name length. */ + .long 4f - 1f /* data length. */ + /* NT_GNU_PROPERTY_TYPE_0 */ + .long 5 /* note type. */ +0: + .asciz "GNU" /* vendor name. */ +1: +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif + /* GNU_PROPERTY_X86_ISA_1_NEEDED */ + .long 0xc0000001 /* pr_type. */ + .long 3f - 2f /* pr_datasz. */ +2: + .long 0x0 +3: +.ifdef __64_bit__ + .p2align 3 +.else + .p2align 2 +.endif +4: diff --git a/ld/testsuite/ld-x86-64/x86-64.exp b/ld/testsuite/ld-x86-64/x86-64.exp index e6ec049994c..6edb9e86f45 100644 --- a/ld/testsuite/ld-x86-64/x86-64.exp +++ b/ld/testsuite/ld-x86-64/x86-64.exp @@ -399,6 +399,10 @@ run_dump_test "pr23189" run_dump_test "pr23194" run_dump_test "pr23324a" run_dump_test "pr23324b" +run_dump_test "pr23372a" +run_dump_test "pr23372a-x32" +run_dump_test "pr23372b" +run_dump_test "pr23372b-x32" if { ![istarget "x86_64-*-linux*"] && ![istarget "x86_64-*-nacl*"]} { return