9342e73ae1
Previously we used --sysroot to set the sysroot explicitly. Unfortunately, this flag is not used directly by Clang to set the include path (<sysroot>/include) but is instead interpreted by the toolchain code. This means that even when the toolchain is explicitly set (using the --sysroot parameter), it may still decide to use a different include path such as <sysroot>/usr/include (such as on baremetal aarch64). This commit uses the Clang-internal -internal-isystem flag which sets the include directory directly (as a system include path). This should be more robust. The reason the --sysroot parameter has so far worked is that all existing targets happened to add <sysroot>/include as an include path. The relevant Clang code is here: https://github.com/llvm/llvm-project/blob/release/9.x/clang/lib/Driver/Driver.cpp#L4693-L4739 So far, RISC-V is handled by RISCVToolchain, Cortex-M targets by BareMetal (which seems to be specific to ARM unlike what the name says) and aarch64 fell back to Generic_ELF.
127 строки
2,9 КиБ
Go
127 строки
2,9 КиБ
Go
package builder
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import (
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"path/filepath"
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"github.com/tinygo-org/tinygo/goenv"
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)
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// Picolibc is a C library for bare metal embedded devices. It was originally
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// based on newlib.
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var Picolibc = Library{
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name: "picolibc",
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cflags: func() []string {
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picolibcDir := filepath.Join(goenv.Get("TINYGOROOT"), "lib/picolibc/newlib/libc")
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return []string{"-Werror", "-Wall", "-std=gnu11", "-D_COMPILING_NEWLIB", "-nostdlibinc", "-Xclang", "-internal-isystem", "-Xclang", picolibcDir + "/include", "-I" + picolibcDir + "/tinystdio", "-I" + goenv.Get("TINYGOROOT") + "/lib/picolibc-include"}
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},
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sourceDir: "lib/picolibc/newlib/libc",
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sources: func(target string) []string {
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return picolibcSources
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},
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}
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var picolibcSources = []string{
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"string/bcmp.c",
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"string/bcopy.c",
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"string/bzero.c",
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"string/explicit_bzero.c",
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"string/ffsl.c",
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"string/ffsll.c",
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"string/fls.c",
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"string/flsl.c",
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"string/flsll.c",
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"string/gnu_basename.c",
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"string/index.c",
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"string/memccpy.c",
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"string/memchr.c",
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"string/memcmp.c",
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"string/memcpy.c",
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"string/memmem.c",
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"string/memmove.c",
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"string/mempcpy.c",
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"string/memrchr.c",
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"string/memset.c",
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"string/rawmemchr.c",
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"string/rindex.c",
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"string/stpcpy.c",
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"string/stpncpy.c",
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"string/strcasecmp.c",
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"string/strcasecmp_l.c",
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"string/strcasestr.c",
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"string/strcat.c",
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"string/strchr.c",
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"string/strchrnul.c",
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"string/strcmp.c",
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"string/strcoll.c",
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"string/strcoll_l.c",
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"string/strcpy.c",
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"string/strcspn.c",
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"string/strdup.c",
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"string/strerror.c",
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"string/strerror_r.c",
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"string/strlcat.c",
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"string/strlcpy.c",
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"string/strlen.c",
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"string/strlwr.c",
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"string/strncasecmp.c",
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"string/strncasecmp_l.c",
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"string/strncat.c",
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"string/strncmp.c",
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"string/strncpy.c",
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"string/strndup.c",
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"string/strnlen.c",
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"string/strnstr.c",
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"string/strpbrk.c",
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"string/strrchr.c",
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"string/strsep.c",
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"string/strsignal.c",
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"string/strspn.c",
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"string/strstr.c",
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"string/strtok.c",
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"string/strtok_r.c",
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"string/strupr.c",
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"string/strverscmp.c",
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"string/strxfrm.c",
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"string/strxfrm_l.c",
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"string/swab.c",
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"string/timingsafe_bcmp.c",
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"string/timingsafe_memcmp.c",
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"string/u_strerr.c",
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"string/wcpcpy.c",
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"string/wcpncpy.c",
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"string/wcscasecmp.c",
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"string/wcscasecmp_l.c",
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"string/wcscat.c",
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"string/wcschr.c",
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"string/wcscmp.c",
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"string/wcscoll.c",
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"string/wcscoll_l.c",
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"string/wcscpy.c",
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"string/wcscspn.c",
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"string/wcsdup.c",
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"string/wcslcat.c",
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"string/wcslcpy.c",
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"string/wcslen.c",
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"string/wcsncasecmp.c",
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"string/wcsncasecmp_l.c",
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"string/wcsncat.c",
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"string/wcsncmp.c",
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"string/wcsncpy.c",
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"string/wcsnlen.c",
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"string/wcspbrk.c",
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"string/wcsrchr.c",
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"string/wcsspn.c",
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"string/wcsstr.c",
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"string/wcstok.c",
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"string/wcswidth.c",
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"string/wcsxfrm.c",
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"string/wcsxfrm_l.c",
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"string/wcwidth.c",
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"string/wmemchr.c",
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"string/wmemcmp.c",
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"string/wmemcpy.c",
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"string/wmemmove.c",
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"string/wmempcpy.c",
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"string/wmemset.c",
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"string/xpg_strerror_r.c",
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}
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