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From cb1b6f021d2ce82d7d0084758b7efaa3917640f5 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sun, 26 Aug 2018 22:43:19 -0700
Subject: [PATCH 3/3] llvm: Disable calls to *_finite and other glibc-only
functions on Musl.
glibc's finite lib calls are generated when possible.
However, they are not supported on Musl/linux. This change also
disables other functions not available on Musl.
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
lib/Analysis/TargetLibraryInfo.cpp | 29 +++++++++++++++--------------
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/lib/Analysis/TargetLibraryInfo.cpp b/lib/Analysis/TargetLibraryInfo.cpp
index 102135fbf31..5bc4d2b47f5 100644
--- a/lib/Analysis/TargetLibraryInfo.cpp
+++ b/lib/Analysis/TargetLibraryInfo.cpp
@@ -415,27 +415,28 @@ static void initialize(TargetLibraryInfoImpl &TLI, const Triple &T,
// The following functions are available on Linux,
// but Android uses bionic instead of glibc.
- if (!T.isOSLinux() || T.isAndroid()) {
+ if (!T.isOSLinux() || T.isAndroid() || T.isMusl()) {
TLI.setUnavailable(LibFunc_dunder_strdup);
TLI.setUnavailable(LibFunc_dunder_strtok_r);
TLI.setUnavailable(LibFunc_dunder_isoc99_scanf);
TLI.setUnavailable(LibFunc_dunder_isoc99_sscanf);
TLI.setUnavailable(LibFunc_under_IO_getc);
TLI.setUnavailable(LibFunc_under_IO_putc);
- // But, Android has memalign.
- if (!T.isAndroid())
+ // But, Android/Musl has memalign.
+ if (!T.isAndroid() || !T.isMusl() )
TLI.setUnavailable(LibFunc_memalign);
- TLI.setUnavailable(LibFunc_fopen64);
- TLI.setUnavailable(LibFunc_fseeko64);
- TLI.setUnavailable(LibFunc_fstat64);
- TLI.setUnavailable(LibFunc_fstatvfs64);
- TLI.setUnavailable(LibFunc_ftello64);
- TLI.setUnavailable(LibFunc_lstat64);
- TLI.setUnavailable(LibFunc_open64);
- TLI.setUnavailable(LibFunc_stat64);
- TLI.setUnavailable(LibFunc_statvfs64);
- TLI.setUnavailable(LibFunc_tmpfile64);
-
+ if (!T.isMusl()) {
+ TLI.setUnavailable(LibFunc_fopen64);
+ TLI.setUnavailable(LibFunc_fseeko64);
+ TLI.setUnavailable(LibFunc_fstat64);
+ TLI.setUnavailable(LibFunc_fstatvfs64);
+ TLI.setUnavailable(LibFunc_ftello64);
+ TLI.setUnavailable(LibFunc_lstat64);
+ TLI.setUnavailable(LibFunc_open64);
+ TLI.setUnavailable(LibFunc_stat64);
+ TLI.setUnavailable(LibFunc_statvfs64);
+ TLI.setUnavailable(LibFunc_tmpfile64);
+ }
// Relaxed math functions are included in math-finite.h on Linux (GLIBC).
TLI.setUnavailable(LibFunc_acos_finite);
TLI.setUnavailable(LibFunc_acosf_finite);
--
2.18.0
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