From afea16b8f752b3ccd3f66f9ac3890586d44cde69 Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Sat, 23 May 2020 21:17:15 +0200 Subject: musl: restore lock skipping for mostly-singlethreaded programs, and related patches The remainder of the patch series proposed by upstream [2] for the locking synchronization issue [1]. [1] https://www.openwall.com/lists/musl/2020/05/22/3 [2] https://www.openwall.com/lists/musl/2020/05/22/10 Signed-off-by: Matthias Schiffer --- ...cut-down-size-of-some-libc-struct-members.patch | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 toolchain/musl/patches/500-0003-cut-down-size-of-some-libc-struct-members.patch (limited to 'toolchain/musl/patches/500-0003-cut-down-size-of-some-libc-struct-members.patch') diff --git a/toolchain/musl/patches/500-0003-cut-down-size-of-some-libc-struct-members.patch b/toolchain/musl/patches/500-0003-cut-down-size-of-some-libc-struct-members.patch new file mode 100644 index 0000000000..6650434397 --- /dev/null +++ b/toolchain/musl/patches/500-0003-cut-down-size-of-some-libc-struct-members.patch @@ -0,0 +1,25 @@ +From f12888e9eb9eed60cc266b899dcafecb4752964a Mon Sep 17 00:00:00 2001 +From: Rich Felker +Date: Fri, 22 May 2020 17:25:38 -0400 +Subject: [PATCH 3/4] cut down size of some libc struct members + +these are all flags that can be single-byte values. +--- + src/internal/libc.h | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +--- a/src/internal/libc.h ++++ b/src/internal/libc.h +@@ -18,9 +18,9 @@ struct tls_module { + }; + + struct __libc { +- int can_do_threads; +- int threaded; +- int secure; ++ char can_do_threads; ++ char threaded; ++ char secure; + int threads_minus_1; + size_t *auxv; + struct tls_module *tls_head; -- cgit v1.2.3