PR25243, static linking with exceptions and iostream is broken on ARM

	PR 25243
	* emulparams/armelf.sh (OTHER_READONLY_SECTIONS): Move definition
	of __exidx_start and __exidx_end into ARM.exidx.
	* emulparams/armelf_linux_eabi.sh (OTHER_READONLY_SECTIONS): Likewise.
	* emulparams/armsymbian.sh (OTHER_READONLY_SECTIONS): Similarly.
	* emulparams/elf32_tic6x_le.sh (OTHER_READONLY_SECTIONS): Similarly.
	* emulparams/armelf_fuchsia.sh: Source armelf_linux_eabi.sh,
	just redefining TEXT_START_ADDR.
	* emulparams/armelf_linux_fdpiceabi.sh: Source armelf_linux_eabi.sh,
	adding to OTHER_READONLY_SECTIONS.

7 files changed, 42 insertions, 52 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 15b2d80..b3318cb 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,18 @@
 2019-12-05  Alan Modra  <amodra@gmail.com>
 
+	PR 25243
+	* emulparams/armelf.sh (OTHER_READONLY_SECTIONS): Move definition
+	of __exidx_start and __exidx_end into ARM.exidx.
+	* emulparams/armelf_linux_eabi.sh (OTHER_READONLY_SECTIONS): Likewise.
+	* emulparams/armsymbian.sh (OTHER_READONLY_SECTIONS): Similarly.
+	* emulparams/elf32_tic6x_le.sh (OTHER_READONLY_SECTIONS): Similarly.
+	* emulparams/armelf_fuchsia.sh: Source armelf_linux_eabi.sh,
+	just redefining TEXT_START_ADDR.
+	* emulparams/armelf_linux_fdpiceabi.sh: Source armelf_linux_eabi.sh,
+	adding to OTHER_READONLY_SECTIONS.
+
+2019-12-05  Alan Modra  <amodra@gmail.com>
+
 	PR 25244
 	* ldlang.c (lang_print_memory_usage): Don't print percent used
 	when length is zero.
diff --git a/ld/emulparams/armelf.sh b/ld/emulparams/armelf.sh
index 0e3147c..24ca8ed 100644
--- a/ld/emulparams/armelf.sh
+++ b/ld/emulparams/armelf.sh
@@ -26,9 +26,12 @@ OTHER_SECTIONS='
 ATTRS_SECTIONS='.ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) }'
 OTHER_READONLY_SECTIONS="
   .ARM.extab ${RELOCATING-0} : { *(.ARM.extab${RELOCATING+* .gnu.linkonce.armextab.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
-  .ARM.exidx ${RELOCATING-0} : { *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }"
+  .ARM.exidx ${RELOCATING-0} :
+    {
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_start = .);}
+      *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*})
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_end = .);}
+    }"
 
 DATA_START_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__data_start = .${CREATE_SHLIB+)};"
 
diff --git a/ld/emulparams/armelf_fuchsia.sh b/ld/emulparams/armelf_fuchsia.sh
index 823ddf5..f67ebd7 100644
--- a/ld/emulparams/armelf_fuchsia.sh
+++ b/ld/emulparams/armelf_fuchsia.sh
@@ -1,32 +1,3 @@
-ARCH=arm
-SCRIPT_NAME=elf
-OUTPUT_FORMAT="elf32-littlearm"
-BIG_OUTPUT_FORMAT="elf32-bigarm"
-LITTLE_OUTPUT_FORMAT="elf32-littlearm"
-MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
-COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
-TEMPLATE_NAME=elf
-EXTRA_EM_FILE=armelf
-GENERATE_SHLIB_SCRIPT=yes
-GENERATE_PIE_SCRIPT=yes
-
-DATA_START_SYMBOLS='PROVIDE (__data_start = .);';
-OTHER_TEXT_SECTIONS='*(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)'
-OTHER_BSS_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__bss_start__ = .${CREATE_SHLIB+)};"
-OTHER_BSS_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}_bss_end__ = .${CREATE_SHLIB+)}; ${CREATE_SHLIB+PROVIDE (}__bss_end__ = .${CREATE_SHLIB+)};"
-OTHER_END_SYMBOLS="${CREATE_SHLIB+PROVIDE (}__end__ = .${CREATE_SHLIB+)};"
-OTHER_SECTIONS='.note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }'
+source_sh ${srcdir}/emulparams/armelf_linux_eabi.sh
 
 TEXT_START_ADDR=0x00001000
-TARGET2_TYPE=got-rel
-
-# ARM does not support .s* sections.
-NO_SMALL_DATA=yes
-
-# Use the ARM ABI-compliant exception-handling sections.
-OTHER_READONLY_SECTIONS="
-  .ARM.extab ${RELOCATING-0} : { *(.ARM.extab${RELOCATING+* .gnu.linkonce.armextab.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
-  .ARM.exidx ${RELOCATING-0} : { *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }"
-
diff --git a/ld/emulparams/armelf_linux_eabi.sh b/ld/emulparams/armelf_linux_eabi.sh
index e1b6a11..312d006 100644
--- a/ld/emulparams/armelf_linux_eabi.sh
+++ b/ld/emulparams/armelf_linux_eabi.sh
@@ -3,7 +3,9 @@ source_sh ${srcdir}/emulparams/armelf_linux.sh
 # Use the ARM ABI-compliant exception-handling sections.
 OTHER_READONLY_SECTIONS="
   .ARM.extab ${RELOCATING-0} : { *(.ARM.extab${RELOCATING+* .gnu.linkonce.armextab.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
-  .ARM.exidx ${RELOCATING-0} : { *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }"
-
+  .ARM.exidx ${RELOCATING-0} :
+    {
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_start = .);}
+      *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*})
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_end = .);}
+    }"
diff --git a/ld/emulparams/armelf_linux_fdpiceabi.sh b/ld/emulparams/armelf_linux_fdpiceabi.sh
index 97d41f8..84e452b 100644
--- a/ld/emulparams/armelf_linux_fdpiceabi.sh
+++ b/ld/emulparams/armelf_linux_fdpiceabi.sh
@@ -1,15 +1,10 @@
-source_sh ${srcdir}/emulparams/armelf_linux.sh
+source_sh ${srcdir}/emulparams/armelf_linux_eabi.sh
 
 OUTPUT_FORMAT="elf32-littlearm-fdpic"
 BIG_OUTPUT_FORMAT="elf32-bigarm-fdpic"
 LITTLE_OUTPUT_FORMAT="elf32-littlearm-fdpic"
 
-# Use the ARM ABI-compliant exception-handling sections.
-OTHER_READONLY_SECTIONS="
-  .ARM.extab ${RELOCATING-0} : { *(.ARM.extab${RELOCATING+* .gnu.linkonce.armextab.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
-  .ARM.exidx ${RELOCATING-0} : { *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }
+OTHER_READONLY_SECTIONS="${OTHER_READONLY_SECTIONS}
   .rofixup : {
 	${RELOCATING+__ROFIXUP_LIST__ = .;}
 	*(.rofixup)
diff --git a/ld/emulparams/armsymbian.sh b/ld/emulparams/armsymbian.sh
index 1959685..f643165 100644
--- a/ld/emulparams/armsymbian.sh
+++ b/ld/emulparams/armsymbian.sh
@@ -13,10 +13,13 @@ EMBEDDED=yes
 # .ARM.exidx$${Base,Limit} symbols.
 OTHER_READONLY_SECTIONS="
   .ARM.extab ${RELOCATING-0} : { *(.ARM.extab${RELOCATING+* .gnu.linkonce.armextab.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (.ARM.exidx\$\$Base = .); }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
-  .ARM.exidx ${RELOCATING-0} : { *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }
-  ${RELOCATING+ PROVIDE_HIDDEN (.ARM.exidx\$\$Limit = .); }"
+  .ARM.exidx ${RELOCATING-0} :
+    {
+      ${RELOCATING+PROVIDE_HIDDEN (.ARM.exidx\$\$Base = .);}
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_start = .);}
+      *(.ARM.exidx${RELOCATING+* .gnu.linkonce.armexidx.*})
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_end = .);}
+      ${RELOCATING+PROVIDE_HIDDEN (.ARM.exidx\$\$Limit = .);}
+    }"
 
 MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
diff --git a/ld/emulparams/elf32_tic6x_le.sh b/ld/emulparams/elf32_tic6x_le.sh
index 7bf7bf1..9ef4c17 100644
--- a/ld/emulparams/elf32_tic6x_le.sh
+++ b/ld/emulparams/elf32_tic6x_le.sh
@@ -32,9 +32,12 @@ SBSS_NAME="bss"
 BSS_NAME="far"
 OTHER_READONLY_SECTIONS="
   .c6xabi.extab ${RELOCATING-0} : { *(.c6xabi.extab${RELOCATING+* .gnu.linkonce.c6xabiextab.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_start = .); }
-  .c6xabi.exidx ${RELOCATING-0} : { *(.c6xabi.exidx${RELOCATING+* .gnu.linkonce.c6xabiexidx.*}) }
-  ${RELOCATING+ PROVIDE_HIDDEN (__exidx_end = .); }"
+  .c6xabi.exidx ${RELOCATING-0} :
+    {
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_start = .);}
+      *(.c6xabi.exidx${RELOCATING+* .gnu.linkonce.c6xabiexidx.*})
+      ${RELOCATING+PROVIDE_HIDDEN (__exidx_end = .);}
+    }"
 OTHER_SDATA_SECTIONS=".rodata ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.*}) }"
 OTHER_READONLY_RELOC_SECTIONS="
   .rel.rodata   ${RELOCATING-0} : { *(.rel.rodata${RELOCATING+ .rel.rodata.*}) }