binutils-gdb/ld/testsuite/ld-linkonce/zeroeh.ld

SECTIONS {
 .text 0xa00 : { *(.text); *(.gnu.linkonce.t.*) }
 .gcc_except_table 0x2000 : { *(.gcc_except_table) }
 .eh_frame 0x4000 : { *(.eh_frame) }
  /DISCARD/ : { *(.note.gnu.property) }
}
* ld-linkonce/linkonce.exp: New file. * ld-linkonce/x.s, ld-linkonce/y.s, ld-linkonce/zeroeh.ld, ld-linkonce/zeroehl32.d: New test. 2001-09-29 21:01:17 +08:00			`SECTIONS {`
			`.text 0xa00 : { (.text); (.gnu.linkonce.t.*) }`
* ld-linkonce/x.s: Use .gcc_except_table instead of .eh_frame to test that entry for deleted function is zeroed. Add a somewhat closer to normal .eh_frame to test that fde for deleted function is removed. * ld-linkonce/y.s: Likewise. * ld-linkonce/zeroeh.ld: Place .gcc_except_table too. * ld-linkonce/zeroehl32.d: Update. 2007-04-24 12:29:03 +08:00			`.gcc_except_table 0x2000 : { *(.gcc_except_table) }`
			`.eh_frame 0x4000 : { *(.eh_frame) }`
x86: Add a GNU_PROPERTY_X86_ISA_1_USED note if needed When -z separate-code, which is enabled by default for Linux/x86, is used to create executable, ld won't place any data in the code-only PT_LOAD segment. If there are no data sections placed before the code-only PT_LOAD segment, the program headers won't be mapped into any PT_LOAD segment. When the executable tries to access it (based on the program header address passed in AT_PHDR), it will lead to segfault. This patch inserts a GNU_PROPERTY_X86_ISA_1_USED note if there may be no data sections before the text section so that the first PT_LOAD segment won't be code-only and will contain the program header. Testcases are adjusted to either pass "-z noseparate-code" to ld or discard the .note.gnu.property section. A Linux/x86 run-time test is added. bfd/ PR ld/23428 * elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): If the separate code program header is needed, make sure that the first read-only PT_LOAD segment has no code by adding a GNU_PROPERTY_X86_ISA_1_USED note. ld/ PR ld/23428 * testsuite/ld-elf/linux-x86.S: New file. * testsuite/ld-elf/linux-x86.exp: Likewise. * testsuite/ld-elf/pr23428.c: Likewise. * testsuite/ld-elf/sec64k.exp: Pass "-z noseparate-code" to ld for Linux/x86 targets. * testsuite/ld-i386/abs-iamcu.d: Likewise. * testsuite/ld-i386/abs.d: Likewise. * testsuite/ld-i386/pr12718.d: Likewise. * testsuite/ld-i386/pr12921.d: Likewise. * testsuite/ld-x86-64/abs-k1om.d: Likewise. * testsuite/ld-x86-64/abs-l1om.d: Likewise. * testsuite/ld-x86-64/abs.d: Likewise. * testsuite/ld-x86-64/pr12718.d: Likewise. * testsuite/ld-x86-64/pr12921.d: Likewise. * testsuite/ld-linkonce/zeroeh.ld: Discard .note.gnu.property section. * testsuite/ld-scripts/print-memory-usage.t: Likewise. * testsuite/ld-scripts/size-2.t: Likewise. * testsuite/lib/ld-lib.exp (run_ld_link_exec_tests): Use ld to create executable if language is "asm". 2018-07-21 00:18:47 +08:00			`/DISCARD/ : { *(.note.gnu.property) }`
* ld-linkonce/linkonce.exp: New file. * ld-linkonce/x.s, ld-linkonce/y.s, ld-linkonce/zeroeh.ld, ld-linkonce/zeroehl32.d: New test. 2001-09-29 21:01:17 +08:00			`}`