toolchain/gcc/patches/5.5.0/201-musl_arm.patch

   1 From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
   2 Date: Wed, 27 May 2015 13:17:11 +0000 (+0000)
   3 Subject: [PATCH 4/13] arm musl support
   4 X-Git-Url: https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff_plain;h=de799bd087ab9a179768fea75bd195a31d3432a4
   5
   6 [PATCH 4/13] arm musl support
   7
   8 On behalf of szabolcs.nagy@arm.com
   9
  10 2015-05-27  Gregor Richards  <gregor.richards@uwaterloo.ca>
  11
  12         * config/arm/linux-eabi.h (MUSL_DYNAMIC_LINKER): Define.
  13
  14
  15 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223749 138bc75d-0d04-0410-961f-82ee72b054a4
  16 ---
  17
  18 --- a/gcc/config/arm/linux-eabi.h
  19 +++ b/gcc/config/arm/linux-eabi.h
  20 @@ -77,6 +77,23 @@
  21      %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
  22      %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
  23
  24 +/* For ARM musl currently supports four dynamic linkers:
  25 +   - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
  26 +   - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
  27 +   - ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
  28 +   - ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
  29 +   musl does not support the legacy OABI mode.
  30 +   All the dynamic linkers live in /lib.
  31 +   We default to soft-float, EL. */
  32 +#undef  MUSL_DYNAMIC_LINKER
  33 +#if TARGET_BIG_ENDIAN_DEFAULT
  34 +#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
  35 +#else
  36 +#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
  37 +#endif
  38 +#define MUSL_DYNAMIC_LINKER \
  39 +  "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
  40 +
  41  /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
  42     use the GNU/Linux version, not the generic BPABI version.  */
  43  #undef  LINK_SPEC