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Diffstat (limited to 'meta-microblaze/recipes-devtools/gcc/libgcc-initial.inc')
| -rw-r--r-- | meta-microblaze/recipes-devtools/gcc/libgcc-initial.inc | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/meta-microblaze/recipes-devtools/gcc/libgcc-initial.inc b/meta-microblaze/recipes-devtools/gcc/libgcc-initial.inc deleted file mode 100644 index 8251e3c2..00000000 --- a/meta-microblaze/recipes-devtools/gcc/libgcc-initial.inc +++ /dev/null | |||
| @@ -1,58 +0,0 @@ | |||
| 1 | # | ||
| 2 | # Notes on the way the OE cross toolchain now works | ||
| 3 | # | ||
| 4 | # We need a libgcc to build glibc. Tranditionally we therefore built | ||
| 5 | # a non-threaded and non-shared compiler (gcc-cross-initial), then use | ||
| 6 | # that to build libgcc-initial which is used to build glibc which we can | ||
| 7 | # then build gcc-cross and libgcc against. | ||
| 8 | # | ||
| 9 | # We were able to drop the glibc dependency from gcc-cross, with two tweaks: | ||
| 10 | |||
| 11 | # a) specify the minimum glibc version to support in a configure option | ||
| 12 | # b) create a dummy limits.h file so that later when glibc creates one, | ||
| 13 | # the headers structure has support for it. We can do this with a simple | ||
| 14 | # empty file | ||
| 15 | # | ||
| 16 | # Once gcc-cross is libc independent, we can use it to build both | ||
| 17 | # libgcc-initial and then later libgcc. | ||
| 18 | # | ||
| 19 | # libgcc-initial is tricky as we need to imitate the non-threaded and | ||
| 20 | # non-shared case. We can do that by hacking the threading mode back to | ||
| 21 | # "single" even if gcc reports "posix" and disable libc presence for the | ||
| 22 | # libgcc-intial build. We have to create the dummy limits.h to avoid | ||
| 23 | # compiler errors from a missing header. | ||
| 24 | # | ||
| 25 | # glibc will fail to link with libgcc-initial due to a missing "exception | ||
| 26 | # handler" capable libgcc (libgcc_eh.a). Since we know glibc doesn't need | ||
| 27 | # any exception handler, we can safely symlink to libgcc.a. | ||
| 28 | # | ||
| 29 | |||
| 30 | require libgcc-common.inc | ||
| 31 | |||
| 32 | DEPENDS = "virtual/${TARGET_PREFIX}gcc" | ||
| 33 | |||
| 34 | LICENSE = "GPL-3.0-with-GCC-exception" | ||
| 35 | |||
| 36 | PACKAGES = "" | ||
| 37 | |||
| 38 | EXTRA_OECONF += "--disable-shared" | ||
| 39 | |||
| 40 | inherit nopackages | ||
| 41 | |||
| 42 | # We really only want this built by things that need it, not any recrdeptask | ||
| 43 | deltask do_build | ||
| 44 | |||
| 45 | do_configure:prepend () { | ||
| 46 | install -d ${STAGING_INCDIR} | ||
| 47 | touch ${STAGING_INCDIR}/limits.h | ||
| 48 | sed -i -e 's#INHIBIT_LIBC_CFLAGS =.*#INHIBIT_LIBC_CFLAGS = -Dinhibit_libc#' ${B}/gcc/libgcc.mvars | ||
| 49 | sed -i -e 's#inhibit_libc = false#inhibit_libc = true#' ${B}/gcc/Makefile | ||
| 50 | } | ||
| 51 | |||
| 52 | do_configure:append () { | ||
| 53 | sed -i -e 's#thread_header = .*#thread_header = gthr-single.h#' ${B}/${BPN}/Makefile | ||
| 54 | } | ||
| 55 | |||
| 56 | do_install:append () { | ||
| 57 | ln -s libgcc.a ${D}${libdir}/${TARGET_SYS}/${BINV}/libgcc_eh.a | ||
| 58 | } | ||
