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Add support for musl on ppc32
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
diff -Nur gcc-5.4.0.orig/gcc/config/rs6000/sysv4.h gcc-5.4.0/gcc/config/rs6000/sysv4.h
--- gcc-5.4.0.orig/gcc/config/rs6000/sysv4.h 2015-09-24 15:46:45.000000000 +0200
+++ gcc-5.4.0/gcc/config/rs6000/sysv4.h 2016-11-27 13:12:33.226953738 +0100
@@ -537,6 +537,9 @@
#ifndef CC1_SECURE_PLT_DEFAULT_SPEC
#define CC1_SECURE_PLT_DEFAULT_SPEC ""
#endif
+#ifndef LINK_SECURE_PLT_DEFAULT_SPEC
+#define LINK_SECURE_PLT_DEFAULT_SPEC ""
+#endif
/* Pass -G xxx to the compiler. */
#undef CC1_SPEC
@@ -757,17 +760,23 @@
#define LINK_START_LINUX_SPEC ""
+#define MUSL_DYNAMIC_LINKER_E ENDIAN_SELECT("","le","")
+
#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
#define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
+#define MUSL_DYNAMIC_LINKER \
+ "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
#if DEFAULT_LIBC == LIBC_UCLIBC
-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
+#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
+#elif DEFAULT_LIBC == LIBC_MUSL
+#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
#elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
+#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
#else
#error "Unsupported DEFAULT_LIBC"
#endif
#define GNU_USER_DYNAMIC_LINKER \
- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
%{rdynamic:-export-dynamic} \
@@ -889,6 +898,7 @@
{ "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \
{ "link_os_default", LINK_OS_DEFAULT_SPEC }, \
{ "cc1_secure_plt_default", CC1_SECURE_PLT_DEFAULT_SPEC }, \
+ { "link_secure_plt_default", LINK_SECURE_PLT_DEFAULT_SPEC }, \
{ "cpp_os_ads", CPP_OS_ADS_SPEC }, \
{ "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
{ "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
diff -Nur gcc-5.4.0.orig/gcc/config/rs6000/sysv4le.h gcc-5.4.0/gcc/config/rs6000/sysv4le.h
--- gcc-5.4.0.orig/gcc/config/rs6000/sysv4le.h 2015-09-24 15:46:45.000000000 +0200
+++ gcc-5.4.0/gcc/config/rs6000/sysv4le.h 2016-11-27 13:12:33.226953738 +0100
@@ -31,3 +31,5 @@
/* Little-endian PowerPC64 Linux uses the ELF v2 ABI by default. */
#define LINUX64_DEFAULT_ABI_ELFv2
+#undef MUSL_DYNAMIC_LINKER_E
+#define MUSL_DYNAMIC_LINKER_E ENDIAN_SELECT("","le","le")
diff -Nur gcc-5.4.0.orig/gcc/config.gcc gcc-5.4.0/gcc/config.gcc
--- gcc-5.4.0.orig/gcc/config.gcc 2015-09-10 16:17:53.000000000 +0200
+++ gcc-5.4.0/gcc/config.gcc 2016-11-27 13:14:17.149638148 +0100
@@ -2413,6 +2413,10 @@
powerpc*-*-linux*paired*)
tm_file="${tm_file} rs6000/750cl.h" ;;
esac
+ case ${target} in
+ powerpc*-*-linux*-musl*)
+ enable_secureplt=yes ;;
+ esac
if test x${enable_secureplt} = xyes; then
tm_file="rs6000/secureplt.h ${tm_file}"
fi
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