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authorShahab Vahedi <shahab@synopsys.com>2020-07-30 18:40:41 +0200
committerClaudiu Zissulescu <claziss@gmail.com>2020-07-31 12:15:17 +0300
commit223d5266dec459e04d99d1140cfb7c28900e1507 (patch)
tree1e0dfb3bbd4cb5630c1d71ff4de8099418e4d8bf
parent15f2a3ede0b026887f861c8e9c23f82355289e46 (diff)
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ARC: Fix ld/pr24511 test
With this patch, ld/pr24511 test passes for ARC. At first glance, the test was failing because the order of "__init_array_start" and "__fini_array_start" weak symbols were reversed: $ nm -n dump.out expected output | real output 00002104 D __init_array_start | 00002104 D __fini_array_start 0000210c D __fini_array_start | 00002104 D __init_array_start The order of the symbols are different as a side effect of both symbols being mapped to the _same_ address (0x2104). Looking further into the mapping logs [1] revealed that the linker script must consider all instances of ".init_array" (in other words ".init_array.*") inside its relevant section. Same logic holds for ".fini_array". Therefore, adding "KEEP (*(SORT(.init_array.*)))" to the linker script, along with the one for ".finit_array.*", resolved the problem. While at it, I took the liberty of refactoring the script a little bit and made those pieces of script macros. [1] Linker's mapping for the relevant part of the test --------------------------------------------------------------- .init_array 0x2104 0x0 0x2104 PROVIDE (__init_array_start = .) *(.init_array) [!provide] PROVIDE (__init_array_end = .) .fini_array 0x2104 0x0 0x2104 PROVIDE (__fini_array_start = .) *(.fini_array) [!provide] PROVIDE (__fini_array_end = .) .data 0x2104 0x0 *(.data .data.* .gnu.linkonce.d.*) .data 0x2104 0x0 pr24511.o .init_array.01000 0x2104 0x8 .init_array.01000 0x2104 0x8 pr24511.o .fini_array.01000 0x210c 0x8 .fini_array.01000 0x210c 0x8 pr24511.o --------------------------------------------------------------- ld: * scripttempl/elfarc.sc (.init_array): Keep ".init_array.*". (.fini_array): Keep ".fini_array.*". Signed-off-by: Claudiu Zissulescu <claziss@gmail.com>
-rw-r--r--ld/ChangeLog5
-rw-r--r--ld/scripttempl/elfarc.sc24
2 files changed, 21 insertions, 8 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog
index 0e03aa1..13919b2 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,8 @@
+2020-07-31 Shahab Vahedi <shahab@synopsys.com>
+
+ * scripttempl/elfarc.sc (.init_array): Keep ".init_array.*".
+ (.fini_array): Keep ".fini_array.*".
+
2020-07-30 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* Makefile.am (AM_CPPFLAGS): Add LARGEFILE_CPPFLAGS.
diff --git a/ld/scripttempl/elfarc.sc b/ld/scripttempl/elfarc.sc
index 8851c77..ebf40b8 100644
--- a/ld/scripttempl/elfarc.sc
+++ b/ld/scripttempl/elfarc.sc
@@ -118,6 +118,20 @@ if test -z "${NO_SMALL_DATA}"; then
REL_SBSS2=".rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }
.rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"
fi
+INIT_ARRAY=".init_array ${RELOCATING-0} :
+ {
+ ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_start = .);}}
+ KEEP (*(SORT(.init_array.*)))
+ KEEP (*(.init_array))
+ ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_end = .);}}
+ }"
+FINI_ARRAY=".fini_array ${RELOCATING-0} :
+ {
+ ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_start = .);}}
+ KEEP (*(SORT(.fini_array.*)))
+ KEEP (*(.fini_array))
+ ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_end = .);}}
+ }"
CTOR=".ctors ${CONSTRUCTING-0} :
{
${CONSTRUCTING+${CTOR_START}}
@@ -314,14 +328,8 @@ cat <<EOF
${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_start = .);}}
.preinit_array ${RELOCATING-0} : { *(.preinit_array) }
${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_end = .);}}
-
- ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_start = .);}}
- .init_array ${RELOCATING-0} : { *(.init_array) }
- ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_end = .);}}
-
- ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_start = .);}}
- .fini_array ${RELOCATING-0} : { *(.fini_array) }
- ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_end = .);}}
+ ${RELOCATING+${INIT_ARRAY}}
+ ${RELOCATING+${FINI_ARRAY}}
.data ${RELOCATING-0} :
{