From bb1cb422aef79013990a3331f837a8dd24d71165 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Tue, 13 Jul 2010 16:59:14 +0000 Subject: Support garbage collection against STT_GNU_IFUNC symbols. bfd/ 2010-07-13 H.J. Lu PR ld/11791 * elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Support garbage collection against STT_GNU_IFUNC symbols. * elf32-i386.c (elf_i386_get_local_sym_hash): Don't set elf.plt.offset/elf.got.offset to -1. (elf_i386_tls_transition): Skip TLS transition for functions. (elf_i386_gc_sweep_hook): Support STT_GNU_IFUNC symbols. * elf64-x86-64.c (elf64_x86_64_get_local_sym_hash): Don't set elf.plt.offset/elf.got.offset to -1. (elf64_x86_64_tls_transition): Skip TLS transition for functions. (elf64_x86_64_gc_sweep_hook): Support STT_GNU_IFUNC symbols. ld/testsuite/ 2010-07-13 H.J. Lu PR ld/11791 * ld-ifunc/ifunc-10-i386.d: New. * ld-ifunc/ifunc-10-i386.s: Likewise. * ld-ifunc/ifunc-10-x86-64.d: Likewise. * ld-ifunc/ifunc-10-x86-64.s: Likewise. * ld-ifunc/ifunc-11-i386.d: Likewise. * ld-ifunc/ifunc-11-i386.s: Likewise. * ld-ifunc/ifunc-11-x86-64.d: Likewise. * ld-ifunc/ifunc-11-x86-64.s: Likewise. --- ld/testsuite/ChangeLog | 12 ++++++++++++ ld/testsuite/ld-ifunc/ifunc-10-i386.d | 6 ++++++ ld/testsuite/ld-ifunc/ifunc-10-i386.s | 20 ++++++++++++++++++++ ld/testsuite/ld-ifunc/ifunc-10-x86-64.d | 6 ++++++ ld/testsuite/ld-ifunc/ifunc-10-x86-64.s | 20 ++++++++++++++++++++ ld/testsuite/ld-ifunc/ifunc-11-i386.d | 6 ++++++ ld/testsuite/ld-ifunc/ifunc-11-i386.s | 21 +++++++++++++++++++++ ld/testsuite/ld-ifunc/ifunc-11-x86-64.d | 6 ++++++ ld/testsuite/ld-ifunc/ifunc-11-x86-64.s | 21 +++++++++++++++++++++ 9 files changed, 118 insertions(+) create mode 100644 ld/testsuite/ld-ifunc/ifunc-10-i386.d create mode 100644 ld/testsuite/ld-ifunc/ifunc-10-i386.s create mode 100644 ld/testsuite/ld-ifunc/ifunc-10-x86-64.d create mode 100644 ld/testsuite/ld-ifunc/ifunc-10-x86-64.s create mode 100644 ld/testsuite/ld-ifunc/ifunc-11-i386.d create mode 100644 ld/testsuite/ld-ifunc/ifunc-11-i386.s create mode 100644 ld/testsuite/ld-ifunc/ifunc-11-x86-64.d create mode 100644 ld/testsuite/ld-ifunc/ifunc-11-x86-64.s (limited to 'ld') diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog index 463a14c..6755523 100644 --- a/ld/testsuite/ChangeLog +++ b/ld/testsuite/ChangeLog @@ -1,3 +1,15 @@ +2010-07-13 H.J. Lu + + PR ld/11791 + * ld-ifunc/ifunc-10-i386.d: New. + * ld-ifunc/ifunc-10-i386.s: Likewise. + * ld-ifunc/ifunc-10-x86-64.d: Likewise. + * ld-ifunc/ifunc-10-x86-64.s: Likewise. + * ld-ifunc/ifunc-11-i386.d: Likewise. + * ld-ifunc/ifunc-11-i386.s: Likewise. + * ld-ifunc/ifunc-11-x86-64.d: Likewise. + * ld-ifunc/ifunc-11-x86-64.s: Likewise. + 2010-07-06 Alan Modra * ld-powerpc/relax.s: Add branch back to _start. diff --git a/ld/testsuite/ld-ifunc/ifunc-10-i386.d b/ld/testsuite/ld-ifunc/ifunc-10-i386.d new file mode 100644 index 0000000..5f56b24 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-10-i386.d @@ -0,0 +1,6 @@ +#ld: -m elf_i386 -e bar --gc-sections +#as: --32 +#readelf: -r --wide +#target: x86_64-*-* i?86-*-* + +There are no relocations in this file. diff --git a/ld/testsuite/ld-ifunc/ifunc-10-i386.s b/ld/testsuite/ld-ifunc/ifunc-10-i386.s new file mode 100644 index 0000000..8411e81 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-10-i386.s @@ -0,0 +1,20 @@ + .section .text.foo,"ax",@progbits + .type foo, @function +foo: + .global foo + movl ifunc@GOT(%ecx), %eax + movl ifunc@GOTOFF(%ecx), %eax + call ifunc@PLT + call ifunc + ret + + .section .text.bar,"ax",@progbits + .type bar, @function +bar: + .global bar + ret + + .section .text.ifunc,"ax",@progbits + .type ifunc, @gnu_indirect_function +ifunc: + ret diff --git a/ld/testsuite/ld-ifunc/ifunc-10-x86-64.d b/ld/testsuite/ld-ifunc/ifunc-10-x86-64.d new file mode 100644 index 0000000..8ece379 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-10-x86-64.d @@ -0,0 +1,6 @@ +#ld: -m elf_x86_64 -e bar --gc-sections +#as: --64 +#readelf: -r --wide +#target: x86_64-*-* + +There are no relocations in this file. diff --git a/ld/testsuite/ld-ifunc/ifunc-10-x86-64.s b/ld/testsuite/ld-ifunc/ifunc-10-x86-64.s new file mode 100644 index 0000000..ea6f8c2 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-10-x86-64.s @@ -0,0 +1,20 @@ + .section .text.foo,"ax",@progbits + .type foo, @function +foo: + .global foo + movl ifunc@GOTPCREL(%rip), %eax + movl ifunc(%rip), %eax + call ifunc@PLT + call ifunc + ret + + .section .text.bar,"ax",@progbits + .type bar, @function +bar: + .global bar + ret + + .section .text.ifunc,"ax",@progbits + .type ifunc, @gnu_indirect_function +ifunc: + ret diff --git a/ld/testsuite/ld-ifunc/ifunc-11-i386.d b/ld/testsuite/ld-ifunc/ifunc-11-i386.d new file mode 100644 index 0000000..5f56b24 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-11-i386.d @@ -0,0 +1,6 @@ +#ld: -m elf_i386 -e bar --gc-sections +#as: --32 +#readelf: -r --wide +#target: x86_64-*-* i?86-*-* + +There are no relocations in this file. diff --git a/ld/testsuite/ld-ifunc/ifunc-11-i386.s b/ld/testsuite/ld-ifunc/ifunc-11-i386.s new file mode 100644 index 0000000..06f5924 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-11-i386.s @@ -0,0 +1,21 @@ + .section .text.foo,"ax",@progbits + .type foo, @function +foo: + .global foo + movl ifunc@GOT(%ecx), %eax + movl ifunc@GOTOFF(%ecx), %eax + call ifunc@PLT + call ifunc + ret + + .section .text.bar,"ax",@progbits + .type bar, @function +bar: + .global bar + ret + + .section .text.ifunc,"ax",@progbits + .type ifunc, @gnu_indirect_function + .global ifunc +ifunc: + ret diff --git a/ld/testsuite/ld-ifunc/ifunc-11-x86-64.d b/ld/testsuite/ld-ifunc/ifunc-11-x86-64.d new file mode 100644 index 0000000..8ece379 --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-11-x86-64.d @@ -0,0 +1,6 @@ +#ld: -m elf_x86_64 -e bar --gc-sections +#as: --64 +#readelf: -r --wide +#target: x86_64-*-* + +There are no relocations in this file. diff --git a/ld/testsuite/ld-ifunc/ifunc-11-x86-64.s b/ld/testsuite/ld-ifunc/ifunc-11-x86-64.s new file mode 100644 index 0000000..70d4fbf --- /dev/null +++ b/ld/testsuite/ld-ifunc/ifunc-11-x86-64.s @@ -0,0 +1,21 @@ + .section .text.foo,"ax",@progbits + .type foo, @function +foo: + .global foo + movl ifunc@GOTPCREL(%rip), %eax + movl ifunc(%rip), %eax + call ifunc@PLT + call ifunc + ret + + .section .text.bar,"ax",@progbits + .type bar, @function +bar: + .global bar + ret + + .section .text.ifunc,"ax",@progbits + .type ifunc, @gnu_indirect_function + .global ifunc +ifunc: + ret -- cgit v1.1