--- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -2122,6 +2122,10 @@ powerpc*-*-linux*) powerpc*-*-linux*paired*) tm_file="${tm_file} rs6000/750cl.h" ;; esac + case ${target} in + *-linux*-musl*) + enable_secureplt=yes ;; + esac if test x${enable_secureplt} = xyes; then tm_file="rs6000/secureplt.h ${tm_file}" fi --- a/gcc/config/rs6000/linux64.h +++ b/gcc/config/rs6000/linux64.h @@ -354,17 +354,21 @@ extern int dot_symbols; #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1" #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0" #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc%{msoft-float:-sf}.so.1" +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64.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_GLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}" +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}" +#elif DEFAULT_LIBC == LIBC_MUSL +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}" #else #error "Unsupported DEFAULT_LIBC" #endif #define GNU_USER_DYNAMIC_LINKER32 \ - CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32) + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32) #define GNU_USER_DYNAMIC_LINKER64 \ - CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64) + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64) #undef DEFAULT_ASM_ENDIAN #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) --- a/gcc/config/rs6000/secureplt.h +++ b/gcc/config/rs6000/secureplt.h @@ -18,3 +18,4 @@ along with GCC; see the file COPYING3. . */ #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt" +#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt" --- a/gcc/config/rs6000/sysv4.h +++ b/gcc/config/rs6000/sysv4.h @@ -550,6 +550,9 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF #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 and set correct endian mode. */ #define CC1_SPEC "%{G*} %(cc1_cpu)" \ @@ -600,7 +603,8 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF /* Override the default target of the linker. */ #define LINK_TARGET_SPEC \ - ENDIAN_SELECT("", " --oformat elf32-powerpcle", "") + ENDIAN_SELECT("", " --oformat elf32-powerpcle", "") \ + "%{!mbss-plt: %{!msecure-plt: %(link_secure_plt_default)}}" /* Any specific OS flags. */ #define LINK_OS_SPEC "\ @@ -778,15 +782,18 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF #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%{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} \ @@ -912,6 +919,7 @@ ncrtn.o%s" { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \ { "cc1_endian_default", CC1_ENDIAN_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 }, \