diff options
Diffstat (limited to 'system')
| -rw-r--r-- | system/musl/APKBUILD | 6 | ||||
| -rw-r--r-- | system/musl/dynamic-binary-stack-size.patch | 97 |
2 files changed, 101 insertions, 2 deletions
diff --git a/system/musl/APKBUILD b/system/musl/APKBUILD index 08f4342dd..dbbfe640c 100644 --- a/system/musl/APKBUILD +++ b/system/musl/APKBUILD @@ -2,7 +2,7 @@ # Maintainer: A. Wilcox <awilfox@adelielinux.org> pkgname=musl pkgver=1.1.20 -pkgrel=4 +pkgrel=5 pkgdesc="System library (libc) implementation" url="http://www.musl-libc.org/" arch="all" @@ -11,7 +11,7 @@ license="MIT" depends="" depends_dev="!uclibc-dev" makedepends="$depends_dev" -subpackages="$pkgname-dev $pkgname-dbg" +subpackages="$pkgname-dev" case "$BOOTSTRAP" in nocc) pkgname="musl-dev" subpackages="" @@ -32,6 +32,7 @@ source="http://www.musl-libc.org/releases/musl-$pkgver.tar.gz dcngettext-null-deref.patch getaddrinfo-regression.patch ppc64-atomic.patch + dynamic-binary-stack-size.patch ldconfig getent.c @@ -127,6 +128,7 @@ b967339d9048161583523e847be91779adb0e16cc225d6ff85ef51748269b2dab08a0b8e558ad014 a08d1b170356beea333ace1da12f8a8399ca80c5d9c32ff2fcd8562537a670214f566e4b1219a11b32129078e22fbf7009bb277b7de8550a89352a64b3b5090d dcngettext-null-deref.patch e3953a3a73ef11696dd3eb216e18b152ae35198d8bff686d157e27bc90fb558f9a0be518025a90534e9afd6ea1bf731ffdb6fcb202bb9368f2c8eec7ca886141 getaddrinfo-regression.patch aae9110eccb8cd7dcd3c957fcb01ed524598f79f7fa1a16b9993af40793545d1ec211e7e6aeabe7af7715d94cc26a473ea0acf6d6e66019bf65f03d4b8e24a4b ppc64-atomic.patch +654f76c96ed0e69e19b1a20569e83751bb207a8c181b26742f505638095dde3f4dd3f785deb92c49a603bd15cd8d4932129f567de8cd2edffdd8551c4dfd6976 dynamic-binary-stack-size.patch cce2f1eeb61e55674469c26871a573cce61d739c3defe9c8f56f2b774f6ba5435849ad542a6714120efddc98c297098e9c98a1a424ac593df2243d4aa479f9a9 ldconfig 378d70e65bcc65bb4e1415354cecfa54b0c1146dfb24474b69e418cdbf7ad730472cd09f6f103e1c99ba6c324c9560bccdf287f5889bbc3ef0bdf0e08da47413 getent.c 9d42d66fb1facce2b85dad919be5be819ee290bd26ca2db00982b2f8e055a0196290a008711cbe2b18ec9eee8d2270e3b3a4692c5a1b807013baa5c2b70a2bbf iconv.c" diff --git a/system/musl/dynamic-binary-stack-size.patch b/system/musl/dynamic-binary-stack-size.patch new file mode 100644 index 000000000..e2e3f12d3 --- /dev/null +++ b/system/musl/dynamic-binary-stack-size.patch @@ -0,0 +1,97 @@ +From 7b3348a98c139b4b4238384e52d4b0eb237e4833 Mon Sep 17 00:00:00 2001 +From: Rich Felker <dalias@aerifal.cx> +Date: Tue, 18 Sep 2018 23:54:18 -0400 +Subject: support setting of default thread stack size via PT_GNU_STACK header + +this facilitates building software that assumes a large default stack +size without any patching to call pthread_setattr_default_np or +pthread_attr_setstacksize at each thread creation site, using just +LDFLAGS. + +normally the PT_GNU_STACK header is used only to reflect whether +executable stack is desired, but with GNU ld at least, passing +-Wl,-z,stack-size=N will set a size on the program header. with this +patch, that size will be incorporated into the default stack size +(subject to increase-only rule and DEFAULT_STACK_MAX limit). + +both static and dynamic linking honor the program header. for dynamic +linking, all libraries loaded at program start, including preloaded +ones, are considered. dlopened libraries are not considered, for +several reasons. extra logic would be needed to defer processing until +the load of the new library is commited, synchronization woud be +needed since other threads may be running concurrently, and the +effectiveness woud be limited since the larger size would not apply to +threads that already existed at the time of dlopen. programs that will +dlopen code expecting a large stack need to declare the requirement +themselves, or pthread_setattr_default_np can be used. +--- + ldso/dynlink.c | 12 ++++++++++++ + src/env/__init_tls.c | 5 +++++ + 2 files changed, 17 insertions(+) + +diff --git a/ldso/dynlink.c b/ldso/dynlink.c +index e4829c3a..3ecbddfa 100644 +--- a/ldso/dynlink.c ++++ b/ldso/dynlink.c +@@ -22,6 +22,7 @@ + #include "dynlink.h" + + static void error(const char *, ...); ++extern size_t __default_stacksize; + + #define MAXP2(a,b) (-(-(a)&-(b))) + #define ALIGN(x,y) ((x)+(y)-1 & -(y)) +@@ -609,6 +610,12 @@ static void *map_library(int fd, struct dso *dso) + } else if (ph->p_type == PT_GNU_RELRO) { + dso->relro_start = ph->p_vaddr & -PAGE_SIZE; + dso->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE; ++ } else if (ph->p_type == PT_GNU_STACK) { ++ if (!runtime && ph->p_memsz > __default_stacksize) { ++ __default_stacksize = ++ ph->p_memsz < (8<<20) ? ++ ph->p_memsz : (8<<20); ++ } + } + if (ph->p_type != PT_LOAD) continue; + nsegs++; +@@ -1238,6 +1245,12 @@ static void kernel_mapped_dso(struct dso *p) + } else if (ph->p_type == PT_GNU_RELRO) { + p->relro_start = ph->p_vaddr & -PAGE_SIZE; + p->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE; ++ } else if (ph->p_type == PT_GNU_STACK) { ++ if (!runtime && ph->p_memsz > __default_stacksize) { ++ __default_stacksize = ++ ph->p_memsz < (8<<20) ? ++ ph->p_memsz : (8<<20); ++ } + } + if (ph->p_type != PT_LOAD) continue; + if (ph->p_vaddr < min_addr) +diff --git a/src/env/__init_tls.c b/src/env/__init_tls.c +index e0224243..96d0e284 100644 +--- a/src/env/__init_tls.c ++++ b/src/env/__init_tls.c +@@ -8,6 +8,8 @@ + #include "atomic.h" + #include "syscall.h" + ++extern size_t __default_stacksize; ++ + int __init_tp(void *p) + { + pthread_t td = p; +@@ -90,6 +91,11 @@ static void static_init_tls(size_t *aux) + base = (size_t)_DYNAMIC - phdr->p_vaddr; + if (phdr->p_type == PT_TLS) + tls_phdr = phdr; ++ if (phdr->p_type == PT_GNU_STACK && ++ phdr->p_memsz > __default_stacksize) ++ __default_stacksize = ++ phdr->p_memsz < (8<<20) ? ++ phdr->p_memsz : (8<<20); + } + + if (tls_phdr) { +-- +cgit v1.2.1 + |