From 054565943aa9abff8ffa9ab848eeae3873f27395 Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Thu, 26 Jul 2012 13:43:24 +0000 Subject: [PATCH] PR ld/14397 * elf32-arm.c (elf32_arm_finish_dynamic_sections): Report an error if a required section is missing from the linker script. * ld-arm/arm-elf.exp: Add tests of linking without .rel.plt. * ld-arm/arm-no-rel-plt.out: Linker script without .rel.plt section. * ld-arm/arm-no-rel-plt.out: Expected output. --- bfd/ChangeLog | 7 + bfd/elf32-arm.c | 9 +- ld/testsuite/ChangeLog | 7 + ld/testsuite/ld-arm/arm-elf.exp | 8 ++ ld/testsuite/ld-arm/arm-no-rel-plt.ld | 233 +++++++++++++++++++++++++++++++++ ld/testsuite/ld-arm/arm-no-rel-plt.out | 2 + 6 files changed, 265 insertions(+), 1 deletion(-) create mode 100644 ld/testsuite/ld-arm/arm-no-rel-plt.ld create mode 100644 ld/testsuite/ld-arm/arm-no-rel-plt.out diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 3ed8a84..d350f0c 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,10 @@ +2012-07-26 Meador Inge + Nick Clifton + + PR ld/14397 + * elf32-arm.c (elf32_arm_finish_dynamic_sections): Report an error + if a required section is missing from the linker script. + 2012-07-24 Jan Waclawek PR 13899 * elf32-avr.c (elf32_avr_relax_delete_bytes): Call diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c index 1bbd96c..4f2d00e 100644 --- a/bfd/elf32-arm.c +++ b/bfd/elf32-arm.c @@ -14083,7 +14083,14 @@ elf32_arm_finish_dynamic_sections (bfd * output_bfd, struct bfd_link_info * info name = RELOC_SECTION (htab, ".plt"); get_vma: s = bfd_get_section_by_name (output_bfd, name); - BFD_ASSERT (s != NULL); + if (s == NULL) + { + /* PR ld/14397: Issue an error message if a required section is missing. */ + (*_bfd_error_handler) + (_("error: required section '%s' not found in the linker script"), name); + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } if (!htab->symbian_p) dyn.d_un.d_ptr = s->vma; else diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog index 6896b96..410143e 100644 --- a/ld/testsuite/ChangeLog +++ b/ld/testsuite/ChangeLog @@ -1,3 +1,10 @@ +2012-07-26 Meador Inge + + PR ld/14397 + * ld-arm/arm-elf.exp: Add tests of linking without .rel.plt. + * ld-arm/arm-no-rel-plt.out: Linker script without .rel.plt section. + * ld-arm/arm-no-rel-plt.out: Expected output. + 2012-07-13 Hans-Peter Nilsson * ld-elf/foo0.s: Use ARM-compatible .section syntax. diff --git a/ld/testsuite/ld-arm/arm-elf.exp b/ld/testsuite/ld-arm/arm-elf.exp index 3f6f1a0..3f2bf92 100644 --- a/ld/testsuite/ld-arm/arm-elf.exp +++ b/ld/testsuite/ld-arm/arm-elf.exp @@ -283,6 +283,14 @@ set armelftests_nonacl { {"Simple dynamic application" "tmpdir/arm-lib.so" "" {arm-app.s} {{objdump -fdw arm-app.d} {objdump -Rw arm-app.r}} "arm-app"} + {"Simple static application without .rel.plt in linker script" + "-T arm-no-rel-plt.ld" "" {arm-static-app.s} + {{objdump -fdw arm-static-app.d} {objdump -rw arm-static-app.r}} + "arm-static-app"} + {"Simple dynamic application without .rel.plt in linker script" + "tmpdir/arm-lib.so -T arm-no-rel-plt.ld" "" {arm-app.s} + {{ld arm-no-rel-plt.out}} + "arm-app"} {"Non-pcrel function reference" "tmpdir/arm-lib.so" "" {arm-app-abs32.s} {{objdump -fdw arm-app-abs32.d} {objdump -Rw arm-app-abs32.r}} "arm-app-abs32"} diff --git a/ld/testsuite/ld-arm/arm-no-rel-plt.ld b/ld/testsuite/ld-arm/arm-no-rel-plt.ld new file mode 100644 index 0000000..439909c --- /dev/null +++ b/ld/testsuite/ld-arm/arm-no-rel-plt.ld @@ -0,0 +1,233 @@ +/* Script for -z combreloc: combine and sort reloc sections */ +OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", + "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SEARCH_DIR("/home/meadori/Code/install/arm-none-eabi/lib"); 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We want to adjust up to + the same address within the page on the next page up. */ + . = ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)); + /* Exception handling */ + .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } + .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } + .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } + /* Thread Local Storage sections */ + .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } + .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } + .preinit_array : + { + PROVIDE_HIDDEN (__preinit_array_start = .); + KEEP (*(.preinit_array)) + PROVIDE_HIDDEN (__preinit_array_end = .); + } + .init_array : + { + PROVIDE_HIDDEN (__init_array_start = .); + KEEP (*(SORT(.init_array.*))) + KEEP (*(.init_array)) + PROVIDE_HIDDEN (__init_array_end = .); + } + .fini_array : + { + PROVIDE_HIDDEN (__fini_array_start = .); + KEEP (*(SORT(.fini_array.*))) + KEEP (*(.fini_array)) + PROVIDE_HIDDEN (__fini_array_end = .); + } + .ctors : + { + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + KEEP (*crtbegin.o(.ctors)) + KEEP (*crtbegin?.o(.ctors)) + /* We don't want to include the .ctor section from + the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + } + .dtors : + { + KEEP (*crtbegin.o(.dtors)) + KEEP (*crtbegin?.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + } + .jcr : { KEEP (*(.jcr)) } + .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) } + .dynamic : { *(.dynamic) } + .got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) } + .data : + { + __data_start = . ; + *(.data .data.* .gnu.linkonce.d.*) + SORT(CONSTRUCTORS) + } + .data1 : { *(.data1) } + _edata = .; PROVIDE (edata = .); + . = .; + __bss_start = .; + __bss_start__ = .; + .bss : + { + *(.dynbss) + *(.bss .bss.* .gnu.linkonce.b.*) + *(COMMON) + /* Align here to ensure that the .bss section occupies space up to + _end. Align after .bss to ensure correct alignment even if the + .bss section disappears because there are no input sections. + FIXME: Why do we need it? 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