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gcc: Allow the user to build non-PI executables

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* CC1_SPEC: Remove non-existent "no-fpic" command-line option; add
  "fno-PIC" and "fno-PIE" as options that disable the generation of
  position-independent code; use "-fPIC" by default.
* LINK_SPEC: Pass "-shared" to the linker only if it was passed to gcc; output
  position-independent executables by default; when linking executables, allow
  undefined symbols in shared libraries and export all symbols (to match the
  behaviour of "-shared").

Signed-off-by: Jérôme Duval <jerome.duval@gmail.com>
This commit is contained in:
Simon South 2015-10-22 02:38:57 -04:00 committed by Jérôme Duval
parent f625dd9f94
commit 419211519c
7 changed files with 8 additions and 8 deletions
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2
gcc/gcc/config/arm/haiku.h
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@ -75,6 +75,6 @@
/* If ELF is the default format, we should not use /lib/elf. */
#undef LINK_SPEC
#define LINK_SPEC "%{!o*:-o %b} -m armelf %{!r:-shared} %{nostart:-e 0} %{shared:-e 0} %{!shared: %{!nostart: -no-undefined}}\
#define LINK_SPEC "%{!o*:-o %b} -m armelf %{shared|r|pie|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-pie --allow-shlib-undefined --export-dynamic} %{nostart:-e 0} %{shared:-shared -e 0} %{!shared: %{!nostart: -no-undefined}}\
%{mbig-endian:-EB} %{mlittle-endian:-EL} -X"

2
gcc/gcc/config/haiku.h
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@ -46,7 +46,7 @@ Boston, MA 02111-1307, USA. */
user explicitly asks for the warnings with -Wmultichar. Note that
CC1_SPEC is used for both cc1 and cc1plus. */
#undef CC1_SPEC
#define CC1_SPEC "%{!no-fpic:%{!fno-pic:%{!fno-pie:%{!fpie:%{!fPIC:%{!fPIE:-fpic}}}}}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
#define CC1_SPEC "%{fpic|fPIC|fpie|fPIE|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-fPIC} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
#undef CC1PLUS_SPEC
#define CC1PLUS_SPEC "%{!Wctor-dtor-privacy:-Wno-ctor-dtor-privacy}"

2
gcc/gcc/config/i386/haiku.h
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@ -53,7 +53,7 @@ Boston, MA 02111-1307, USA. */
/* If ELF is the default format, we should not use /lib/elf. */
#undef LINK_SPEC
#define LINK_SPEC "-m elf_i386_haiku %{!r:-shared} %{nostart:-e 0} %{shared:-e 0} %{!shared: %{!nostart: -no-undefined}}"
#define LINK_SPEC "-m elf_i386_haiku %{shared|r|pie|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-pie --allow-shlib-undefined --export-dynamic} %{nostart:-e 0} %{shared:-shared -e 0} %{!shared: %{!nostart: -no-undefined}}"
/* A C statement (sans semicolon) to output to the stdio stream
FILE the assembler definition of uninitialized global DECL named

2
gcc/gcc/config/i386/haiku64.h
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@ -65,7 +65,7 @@ Boston, MA 02111-1307, USA. */
#undef LINK_SPEC
#define LINK_SPEC "%{" SPEC_64 ":-m elf_x86_64} %{" SPEC_32 ":-m elf_i386_haiku} \
%{!r:-shared} %{nostart:-e 0} %{shared:-e 0} %{!shared: %{!nostart: -no-undefined}}"
%{shared|r|pie|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-pie --allow-shlib-undefined --export-dynamic} %{nostart:-e 0} %{shared:-shared -e 0} %{!shared: %{!nostart: -no-undefined}}"
/* A C statement (sans semicolon) to output to the stdio stream
FILE the assembler definition of uninitialized global DECL named

2
gcc/gcc/config/m68k/haiku.h
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@ -108,7 +108,7 @@ Boston, MA 02110-1301, USA. */
#undef LINK_SPEC
/*#define LINK_SPEC "%{!o*:-o %b} -m elf_m68k_haiku -shared -no-undefined %{nostart:-e 0}"*/
#define LINK_SPEC "%{!o*:-o %b} -m m68kelf %{!r:-shared} -no-undefined %{nostart:-e 0}"
#define LINK_SPEC "%{!o*:-o %b} -m m68kelf %{shared|r|pie|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-pie --allow-shlib-undefined --export-dynamic} -no-undefined %{nostart:-e 0}"
/* XXX: not sure for the rest there... */

2
gcc/gcc/config/mips/haiku.h
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@ -40,5 +40,5 @@ Boston, MA 02111-1307, USA. */
while (0)
#undef LINK_SPEC
#define LINK_SPEC "%{!o*:-o %b} -m elf_mipsel_haiku %{!r:-shared} %{nostart:-e 0}"
#define LINK_SPEC "%{!o*:-o %b} -m elf_mipsel_haiku %{shared|r|pie|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-pie --allow-shlib-undefined --export-dynamic} %{nostart:-e 0}"

4
gcc/gcc/config/rs6000/haiku.h
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@ -53,7 +53,7 @@ Boston, MA 02111-1307, USA. */
/* If ELF is the default format, we should not use /lib/elf. */
#undef LINK_SPEC
#define LINK_SPEC "%{!o*:-o %b} -m elf32ppchaiku %{!r:-shared} %{nostart:-e 0} %{shared:-e 0} %{!shared: %{!nostart: -no-undefined}}"
#define LINK_SPEC "%{!o*:-o %b} -m elf32ppchaiku %{shared|r|pie|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-pie --allow-shlib-undefined --export-dynamic} %{nostart:-e 0} %{shared:-shared -e 0} %{!shared: %{!nostart: -no-undefined}}"
#undef CC1_SPEC
#define CC1_SPEC "%{!no-fpic:%{!fno-pic:%{!fno-pie:%{!fpie:%{!fPIC:%{!fPIE:-fPIC}}}}}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
#define CC1_SPEC "%{fpic|fPIC|fpie|fPIE|fno-pic|fno-PIC|fno-pie|fno-PIE:;:-fPIC} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"