ulibc: #define TCC_UCLIBC and load elf_interp

Changelog

@@ -1,8 +1,10 @@
 version 0.9.25:
 
-- split tcc.c into tcc.h libtcc.c tccpp.c tccgen.c tcc.c
 - first support for x86-64 target (Shinichiro Hamaji)
+- support µClibc
+- split tcc.c into tcc.h libtcc.c tccpp.c tccgen.c tcc.c
 - improved preprocess output with linenumbers and spaces preserved
+- tcc_relocate now copies code into user buffer
 - fix bitfields with non-int types and in unions
 - improve ARM cross-compiling (Daniel Glöckner)
 - link stabstr sections from multiple objects

Makefile

@@ -58,6 +58,11 @@ endif
 endif
 endif
 
+ifneq ($(wildcard /lib/ld-uClibc.so.0),)
+NATIVE_TARGET+=-DTCC_UCLIBC
+BCHECK_O=
+endif
+
 ifdef CONFIG_USE_LIBGCC
 LIBTCC1=
 endif

tccelf.c

@@ -1272,17 +1272,17 @@ static void tcc_add_linker_symbols(TCCState *s1)
 }
 
 /* name of ELF interpreter */
-#ifdef __FreeBSD__
+#if defined __FreeBSD__
 static char elf_interp[] = "/usr/libexec/ld-elf.so.1";
-#else
-#ifdef TCC_ARM_EABI
+#elif defined TCC_ARM_EABI
 static char elf_interp[] = "/lib/ld-linux.so.3";
 #elif defined(TCC_TARGET_X86_64)
 static char elf_interp[] = "/lib/ld-linux-x86-64.so.2";
+#elif defined(TCC_UCLIBC)
+static char elf_interp[] = "/lib/ld-uClibc.so.0";
 #else
 static char elf_interp[] = "/lib/ld-linux.so.2";
 #endif
-#endif
 
 static void tcc_output_binary(TCCState *s1, FILE *f,
                               const int *section_order)