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| author | Rich Felker <dalias@aerifal.cx> | 2018-06-14 14:26:30 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2018-06-19 13:24:05 -0400 |
| commit | f81e44a0d96c88e052e51982f9fdd6fe0a212b46 (patch) | |
| tree | e8a21317b5af5a2d09543ffcb0fbf1f0a668b63a /arch/m68k/reloc.h | |
| parent | 18f02c42a2b5397e8541f4663eb6ca00c1a806dd (diff) | |
| download | musl-f81e44a0d96c88e052e51982f9fdd6fe0a212b46.tar.gz | |
add m68k port
three ABIs are supported: the default with 68881 80-bit fpu format and
results returned in floating point registers, softfloat-only with the
same format, and coldfire fpu with IEEE single/double only. only the
first is tested at all, and only under qemu which has fpu emulation
bugs.
basic functionality smoke tests have been performed for the most
common arch-specific breakage via libc-test and qemu user-level
emulation. some sysvipc failures remain, but are shared with other big
endian archs and will be fixed separately.
Diffstat (limited to 'arch/m68k/reloc.h')
| -rw-r--r-- | arch/m68k/reloc.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/m68k/reloc.h b/arch/m68k/reloc.h new file mode 100644 index 00000000..f920b39e --- /dev/null +++ b/arch/m68k/reloc.h @@ -0,0 +1,30 @@ +#if __HAVE_68881__ +#define FP_SUFFIX "" +#elif __mcffpu__ +#define FP_SUFFIX "-fp64" +#else +#define FP_SUFFIX "-sf" +#endif + +#define LDSO_ARCH "m68k" FP_SUFFIX + +#define TPOFF_K (-0x7000) + +#define REL_SYMBOLIC R_68K_32 +#define REL_OFFSET R_68K_PC32 +#define REL_GOT R_68K_GLOB_DAT +#define REL_PLT R_68K_JMP_SLOT +#define REL_RELATIVE R_68K_RELATIVE +#define REL_COPY R_68K_COPY +#define REL_DTPMOD R_68K_TLS_DTPMOD32 +#define REL_DTPOFF R_68K_TLS_DTPREL32 +#define REL_TPOFF R_68K_TLS_TPREL32 + +#define CRTJMP(pc,sp) __asm__ __volatile__( \ + "move.l %1,%%sp ; jmp (%0)" : : "r"(pc), "r"(sp) : "memory" ) + +#define GETFUNCSYM(fp, sym, got) __asm__ ( \ + ".hidden " #sym "\n" \ + "lea " #sym "-.-8,%0 \n" \ + "lea (%%pc,%0),%0 \n" \ + : "=a"(*fp) : : "memory" ) |