gentoo resync : 04.08.2018

12 files changed, 312 insertions, 453 deletions

diff --git a/sys-apps/proot/Manifest b/sys-apps/proot/Manifest
index 2e2ae20236a2..d7192faf9bb2 100644
--- a/sys-apps/proot/Manifest
+++ b/sys-apps/proot/Manifest
@@ -1,15 +1,6 @@
-AUX proot-2.3.1-lib-paths-fix.patch 700 BLAKE2B eace0a2dbd277197961992ff0e94ebd8aa466808f0714d74ffabca632d62aadc27a2786b48e5840ea55696f66313e2a04df927947fc5b077393cffe32f25628c SHA512 90c5b6fa8d9e98de79d2c1344508a82be22ccc334cfcf8b6d60a2004a445a1c683fa538dd57958ba6491e26a1997fcfa8daa44f3a8001424470c85ece56c34a9
-AUX proot-3.2.1-makefile.patch 327 BLAKE2B 202b3180885595c18264e26dc78e71ca0ea33b07eb309688831f82629c739ea14508ac6bf6b7e79a7da765630aa667089e277760920510a07bcc369fa0cb67ed SHA512 8c1614b5c47ffddbbf59f1a47d60d7fa43c03a31612a1b8c699c8ea9c0a4f319ab326bb713e0c0dc6bcb8d7b38282a181e89f7429c7aaccc7340da0769235a57
-AUX proot-3.2.2-build-care.patch 630 BLAKE2B 90f6e8d0cfa544cec4207a7fa1f9cb3024bb19da7d0d551976144094cd8873a6e542514a9984cdf506b3b6bc0132251c4db7284aaa37da726995a235fd60c74e SHA512 394d647a9b5054ca31b7c18a0993adb9d811123cc54fb9f9ea5560016562260966e61f73f3290697af1dc141482dd75d3bb4cbb7c84995af58e246f8977169b6
-AUX proot-4.0.1-argv.patch 3833 BLAKE2B 911d3299e62223a90bbb930c5a0b7b518d815120d97adb0b343f4942eda17c3b75c774378fbf7a4ecedd0ece6f28cb7e86981b71372fd1ef8920adde6de36923 SHA512 d0be9f636ecfd75fef3987d2ebb4c693aa134371e2fee6d975373ac89b0da79ad017301c388b4893667101db405f98d54a8de2cc851413356b1616337d274a14
-DIST proot-3.2.2.tar.gz 171047 BLAKE2B a99f7e27e57bc63508cd31b39d15cade0ffadc6b92a4f9acdf92d41afcbc9e294962d8f7b0114eade568f15b0262065ae20b3308f5b5d03a973c896ecffecaea SHA512 baf8df06a463978f0faf36f9d81935d6583b99b7e8c54b8ac330478ed92bb3a5d5cd624e028247c50bb9bc6fbe1300c5736a38c0aff250b23614aa52f922dfdd
-DIST proot-4.0.1.tar.gz 218732 BLAKE2B 2df499190bf4ffc2c60a9b4dcff21b21aa23647e958c49731679d0a8ca4ac33f8ffb2c52729179efd4dd6d0df78c92861e17061145527f0bc1aba574350a45c4 SHA512 df6ea412856268af65ed5fd3ede8ae099c70e9b08d7875e3e2d8e44e9d4288de93e3844aa361db0b7b579b68b5e7a983989ec0742a6d31d7bef889f739db2158
-DIST proot-4.0.3.tar.gz 222716 BLAKE2B 40a0f99926db386f4018612035812246b67e2070ebd343183dfc6f1e5a53f1c3718352e1042e9727d9e617c0591b6fdcb90745d8d359d607dec95e015ac2704e SHA512 1c74219d44ea79a4573c6dd21a5b62df8e93522886cadb1175044b782f40a711193af348763663d24ab634fbe13b67264f0bff061a980947810e38850d0133f8
-DIST proot-5.0.0.tar.gz 250005 BLAKE2B 89b4f9cb5507b87ae52e82502846fa66a0083618672599068620f7f21ea750524f56f9159e81e1e96bee2ac476b1c49aeb58429178b70c01f26f34065f443fdf SHA512 0617142d5bfe40329c12f5cbe3c850d01b82f10a8b44d63acb64e7e880af652fb60d05610fb91ce317353986eb30f031d82114661e5d58a38696d242ccd366ee
+AUX proot-2.3.1-lib-paths-fix.patch 704 BLAKE2B 2ec5d90122914299dd892001a2b100b7b263dc83f9a43533ee5d7ee7575f9a33e6703265da58d04b68c2f84d511e0206b43dbb4d5e8d9366c6bb52fbaa3ded88 SHA512 be372a1f7865a22f76f6eddcd348806a4c5351d4a9ffc4657ad41826ceadcb6f6cc3987d8e81ccaa022df01567066c9d5b450f315bb29cd01a266f8ae9141306
+AUX proot-5.1.0-loader.patch 8308 BLAKE2B 097a5a3dbf46160a940acf194004443529b720fd8d323bb39057263cb294905e729f0d441a80bc52427e1108a9c1c4fe7dea7e84d39064258d98a3e832522ae0 SHA512 6c3018a4b44149260f2d9f9b8f892f972c0f85482fdc6b7d2858ab6ad16fdc68a9ea619dbcb80c1cb7b4a6d0af2b90329b4560f44baaf3fae29f3c624966ef12
+AUX proot-5.1.0-makefile.patch 779 BLAKE2B a70e16c8f61501253adcd4cb40f69e315548d4394828af537c646fd46878ec75a5f3d24270458a1dfcb9bc70c2468efbcc6e629f848172a678fea27e9f4a5e2c SHA512 3ee5566e2209e0c3cc12ba9dbbbbc93d0080e66039aacbdc3c30974acf5380d4f855bee81a49976ea9c0a67f904456104a2d18777e5c0c10f530debae6e42df7
 DIST proot-5.1.0.tar.gz 253251 BLAKE2B 8dc147d6c6ee303baf0c86f2fa4a8c17a58e76d9da9432635fc70ee06a65aa748ad617735012a1a18a520775fbe38c2264dcccefb681e8e829a5e7e1ddb05cca SHA512 26be26d405a8bcbe94377c3e9c18a571e4b61e3074f0716b0db3517d147d9d4a07c80f7312171cf9580ac7748e72e688efaf1b8e4a0ca3bfc31c802aa351346f
-EBUILD proot-3.2.2-r1.ebuild 1675 BLAKE2B d219c5565aaa7ce20f3ec6d3dc674d302b484120411f03224a895f1a07304aa457e264f28109e3c209630c0dabb5522e0aa6db5d2418f3aeff896dd735f3b38d SHA512 0b15670f67c14e86cd3af2238412d8a3d2c86a252d3228666497633096344eed528da23e6701ae06fb1f9190e0a3fc8f2f8493535b11369eea203a54cdc5bd5a
-EBUILD proot-4.0.1.ebuild 1616 BLAKE2B bc34c263697ee1eefb81576421d29ae3344494e896c576d6b8a7df8392101a5304fc32ea91fc1c5fd5a46153d81aac74d5794efcc19e005f22006689558d109c SHA512 8a6b2da2143283965926b722a661fdf820da7f868a347667c0d7e8ffd00e0dee2d9085861358accceb0e4461eb52f114b6e944ba8ab2adea937a43eb33eaed17
-EBUILD proot-4.0.3.ebuild 1563 BLAKE2B 5b1a8c584360ddcd0219d97527c40c886bda2be3bbe4bc250ca97989996a59d04dee5f54a82090865dbee6e9ce171d3b2787cec7d07efb2b0aff61146a13dc58 SHA512 a8f5aba5498c1bdb6f2d74574a5a53408b6be26164137be29bfd20760767b374470f8c7f28d1c9393d0737548a689df11881c9ed09cb0b97e4eae7fbd37fa1bc
-EBUILD proot-5.0.0.ebuild 1563 BLAKE2B 5b1a8c584360ddcd0219d97527c40c886bda2be3bbe4bc250ca97989996a59d04dee5f54a82090865dbee6e9ce171d3b2787cec7d07efb2b0aff61146a13dc58 SHA512 a8f5aba5498c1bdb6f2d74574a5a53408b6be26164137be29bfd20760767b374470f8c7f28d1c9393d0737548a689df11881c9ed09cb0b97e4eae7fbd37fa1bc
-EBUILD proot-5.1.0.ebuild 1563 BLAKE2B 5b1a8c584360ddcd0219d97527c40c886bda2be3bbe4bc250ca97989996a59d04dee5f54a82090865dbee6e9ce171d3b2787cec7d07efb2b0aff61146a13dc58 SHA512 a8f5aba5498c1bdb6f2d74574a5a53408b6be26164137be29bfd20760767b374470f8c7f28d1c9393d0737548a689df11881c9ed09cb0b97e4eae7fbd37fa1bc
+EBUILD proot-5.1.0-r1.ebuild 1744 BLAKE2B 4494e0f0c9eafc9f36e75f9e48f30126d65476b0067472325cd5168d5920b7bb6d552274b96dd314f7c05b0efc1e8932b8adb0d037acead4bf80b75122d927ae SHA512 fe10a94938cb13d4140b6a7633794d756f04ebb84f04494d53f44443727e9530c596bd91ed2b9660a31063cbf2cc5b150820b689516b9497ce261d4ab8405a13
 MISC metadata.xml 969 BLAKE2B 23deaf1895522b9bddab5b184c088b74b0ca883ccd1a28bd925418203c4cd5c1ddf3dba7f395828ce198ea4e3bbcedd14539ad1268e6bf10cc52624f5d334635 SHA512 447fb399976f554931c6983af60c33567518fa21e40ef4b1732c9e7615dcf9796ab8bc1356b84eef947455f8e25111bdee0dfc5025d686fe978aa6f6e7343145
diff --git a/sys-apps/proot/files/proot-2.3.1-lib-paths-fix.patch b/sys-apps/proot/files/proot-2.3.1-lib-paths-fix.patch
index 43c0d03d978a..647f19183a9d 100644
--- a/sys-apps/proot/files/proot-2.3.1-lib-paths-fix.patch
+++ b/sys-apps/proot/files/proot-2.3.1-lib-paths-fix.patch
@@ -1,5 +1,5 @@
---- src/execve/ldso.c	2013-01-23 16:22:37.870287856 +0400
-+++ src/execve/ldso.c	2013-01-23 16:31:40.219283675 +0400
+--- a/src/execve/ldso.c	2013-01-23 16:22:37.870287856 +0400
++++ b/src/execve/ldso.c	2013-01-23 16:31:40.219283675 +0400
 @@ -285,16 +285,10 @@
  	/* 6. /lib, /usr/lib + /usr/local/lib  */
  	if (IS_CLASS32(elf_header))
diff --git a/sys-apps/proot/files/proot-3.2.1-makefile.patch b/sys-apps/proot/files/proot-3.2.1-makefile.patch
deleted file mode 100644
index 854c48ef0817..000000000000
--- a/sys-apps/proot/files/proot-3.2.1-makefile.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- src/GNUmakefile.orig	2013-12-06 10:47:18.554784621 +0400
-+++ src/GNUmakefile	2013-12-06 10:47:43.129785804 +0400
-@@ -9,7 +9,7 @@
- CC       = gcc
- LD       = $(CC)
- CPPFLAGS += -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -I. -I$(VPATH)
--CFLAGS   += -Wall -Wextra -O2
-+CFLAGS   += -Wall -Wextra
- LDFLAGS  += -ltalloc
- 
- OBJECTS = \
diff --git a/sys-apps/proot/files/proot-3.2.2-build-care.patch b/sys-apps/proot/files/proot-3.2.2-build-care.patch
deleted file mode 100644
index c52a39cf787b..000000000000
--- a/sys-apps/proot/files/proot-3.2.2-build-care.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-Skip check for building care, patch by Patrick Lauer <patrick AT gentoo.org>
-
---- src/GNUmakefile   2014-02-25 16:42:04.336863622 +0800
-+++ src/GNUmakefile.new       2014-02-25 16:42:26.063050467 +0800
-@@ -54,15 +54,6 @@
- all: proot
- 
- ######################################################################
--# Sanity checks
--
--ifneq (,$(findstring care,$(MAKECMDGOALS)))
--ifneq ($(CARE_BUILD_ENV),ok)
--$(error care is supposed to be built with: http://build.reproducible.io)
--endif
--endif
--
--######################################################################
- # Beautified output
- 
- quiet_GEN = @echo "  GEN       $@"; $(GEN)
diff --git a/sys-apps/proot/files/proot-4.0.1-argv.patch b/sys-apps/proot/files/proot-4.0.1-argv.patch
deleted file mode 100644
index df580563458c..000000000000
--- a/sys-apps/proot/files/proot-4.0.1-argv.patch
+++ /dev/null
@@ -1,125 +0,0 @@
-commit 520fa3601c36dd0a3c84e310bd2a1189259000bd
-Author: Cédric VINCENT <cedric.vincent@st.com>
-Date:   Thu Aug 7 14:29:37 2014 +0200
-
-    Don't dereference argv[0] when launching a script through a symlink.
-    
-    Reported-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
-    Ref: https://bugs.gentoo.org/show_bug.cgi?id=517496
-    
-    Also, don't complain about non-regular or non-executable files that
-    are not explicitely candidates.
-
-diff --git a/src/path/path.c b/src/path/path.c
-index 4225876..ecdef70 100644
---- a/src/path/path.c
-+++ b/src/path/path.c
-@@ -219,17 +219,21 @@ int which(Tracee *tracee, const char *paths, char host_path[PATH_MAX], char *con
- 	/* Is the command available without any $PATH look-up?  */
- 	status = realpath2(tracee, host_path, command, true);
- 	if (status == 0 && stat(host_path, &statr) == 0) {
--		if (!S_ISREG(statr.st_mode)) {
-+		if (is_explicit && !S_ISREG(statr.st_mode)) {
- 			notice(tracee, ERROR, USER, "'%s' is not a regular file", command);
- 			return -EACCES;
- 		}
- 
--		if ((statr.st_mode & S_IXUSR) == 0) {
-+		if (is_explicit && (statr.st_mode & S_IXUSR) == 0) {
- 			notice(tracee, ERROR, USER, "'%s' is not executable", command);
- 			return -EACCES;
- 		}
- 
- 		found = true;
-+
-+		/* Don't dereference the final component to preserve
-+		 * argv0 in case it is a symlink to script.  */
-+		(void) realpath2(tracee, host_path, command, false);
- 	}
- 	else
- 		found = false;
-@@ -274,8 +278,12 @@ int which(Tracee *tracee, const char *paths, char host_path[PATH_MAX], char *con
- 		if (status == 0
- 		    && stat(host_path, &statr) == 0
- 		    && S_ISREG(statr.st_mode)
--		    && (statr.st_mode & S_IXUSR) != 0)
--				return 0;
-+		    && (statr.st_mode & S_IXUSR) != 0) {
-+			/* Don't dereference the final component to preserve
-+			 * argv0 in case it is a symlink to script.  */
-+			(void) realpath2(tracee, host_path, path, false);
-+			return 0;
-+		}
- 	} while (*(cursor - 1) != '\0');
- 
- not_found:
-diff --git a/src/tracee/event.c b/src/tracee/event.c
-index 70668d6..5905c43 100644
---- a/src/tracee/event.c
-+++ b/src/tracee/event.c
-@@ -92,7 +92,7 @@ int launch_process(Tracee *tracee)
- 		 * guest rootfs.  Note: Valgrind can't handle execve(2) on
- 		 * "foreign" binaries (ENOEXEC) but can handle execvp(3) on such
- 		 * binaries.  */
--		execvp(tracee->exe, tracee->cmdline);
-+		execv(tracee->exe, tracee->cmdline);
- 		return -errno;
- 
- 	default: /* parent */
-diff --git a/tests/test-713b6910.sh b/tests/test-713b6910.sh
-new file mode 100644
-index 0000000..82e01fd
---- /dev/null
-+++ b/tests/test-713b6910.sh
-@@ -0,0 +1,51 @@
-+if [ -z `which mcookie` ] || [ -z `which rm` ] || [ -z `which cat` ] || [ -z `which chmod` ] || [ -z `which ln` ] || [ -z `which grep` ] || [ -z `which mkdir` ] || [ ! -x  ${ROOTFS}/bin/readlink ]; then
-+    exit 125;
-+fi
-+
-+######################################################################
-+
-+TMP1=/tmp/$(mcookie)
-+TMP2=/tmp/$(mcookie)
-+TMP3=/tmp/$(mcookie)
-+TMP4=/tmp/$(mcookie)
-+
-+rm -fr ${TMP1} ${TMP2} ${TMP3} ${TMP4}
-+
-+######################################################################
-+
-+cat > ${TMP1} <<'EOF'
-+#!/bin/sh
-+echo $0
-+EOF
-+
-+chmod +x ${TMP1}
-+ln -s ${TMP1} ${TMP2}
-+
-+${PROOT} ${TMP2} | grep -v ${TMP1}
-+${PROOT} ${TMP2} | grep ${TMP2}
-+
-+######################################################################
-+
-+mkdir -p ${TMP3}
-+cd ${TMP3}
-+
-+ln -s $(which true) false
-+! ${PROOT} false
-+
-+echo "#!$(which false)" > true
-+chmod a-x true
-+${PROOT} true
-+
-+######################################################################
-+
-+ln -s ${ROOTFS}/bin/readlink ${TMP4}
-+
-+TEST1=$(${PROOT} ${ROOTFS}/bin/readlink /proc/self/exe)
-+TEST2=$(${PROOT} ${TMP4} /proc/self/exe)
-+
-+test "${TEST1}" = "${TEST2}"
-+
-+######################################################################
-+
-+cd /
-+rm -fr ${TMP1} ${TMP2} ${TMP3} ${TMP4}
diff --git a/sys-apps/proot/files/proot-5.1.0-loader.patch b/sys-apps/proot/files/proot-5.1.0-loader.patch
new file mode 100644
index 000000000000..e74cfaa7807b
--- /dev/null
+++ b/sys-apps/proot/files/proot-5.1.0-loader.patch
@@ -0,0 +1,272 @@
+commit 77d5ba4e5bb35f91d026a3240ad0a91a2d4b662a
+Author: Cédric VINCENT <cedric.vincent@st.com>
+Date:   Fri Feb 20 14:28:55 2015 +0100
+
+    Set tracee's stack executable when the loaded program requires this.
+    
+    This is required for UMEQ and for some older versions of PRoot.  For
+    example:
+    
+        $ proot -q umeq-arm64-dce01957 -R ~/gentoo-arm64-20140718
+    
+    Before:
+    
+        proot info: vpid 1 terminated with signal 11
+    
+    Now, it is OK.
+
+diff --git a/src/compat.h b/src/compat.h
+index 2b603f1..5009490 100644
+--- a/src/compat.h
++++ b/src/compat.h
+@@ -243,5 +243,17 @@
+ #    ifndef MAP_ANONYMOUS
+ #        define MAP_ANONYMOUS			0x20
+ #    endif
++#    ifndef PROT_READ
++#        define PROT_READ		0x1
++#    endif
++#    ifndef PROT_WRITE
++#        define PROT_WRITE		0x2
++#    endif
++#    ifndef PROT_EXEC
++#        define PROT_EXEC		0x4
++#    endif
++#    ifndef PROT_GROWSDOWN
++#        define PROT_GROWSDOWN		0x01000000
++#    endif
+ 
+ #endif /* COMPAT_H */
+diff --git a/src/execve/elf.h b/src/execve/elf.h
+index 3ced10c..a5b367b 100644
+--- a/src/execve/elf.h
++++ b/src/execve/elf.h
+@@ -108,7 +108,8 @@ typedef union {
+ typedef enum {
+ 	PT_LOAD    = 1,
+ 	PT_DYNAMIC = 2,
+-	PT_INTERP  = 3
++	PT_INTERP  = 3,
++	PT_GNU_STACK = 0x6474e551,
+ } SegmentType;
+ 
+ typedef struct {
+diff --git a/src/execve/enter.c b/src/execve/enter.c
+index cb84ec6..f0f3e7f 100644
+--- a/src/execve/enter.c
++++ b/src/execve/enter.c
+@@ -252,6 +252,11 @@ static int add_load_info(const ElfHeader *elf_header,
+ 			return status;
+ 		break;
+ 
++	case PT_GNU_STACK:
++		data->load_info->needs_executable_stack |=
++			((PROGRAM_FIELD(*elf_header, *program_header, flags) & PF_X) != 0);
++		break;
++
+ 	default:
+ 		break;
+ 	}
+diff --git a/src/execve/execve.h b/src/execve/execve.h
+index 11eca10..98b8d03 100644
+--- a/src/execve/execve.h
++++ b/src/execve/execve.h
+@@ -49,6 +49,7 @@ typedef struct load_info {
+ 	char *raw_path;
+ 	Mapping *mappings;
+ 	ElfHeader elf_header;
++	bool needs_executable_stack;
+ 
+ 	struct load_info *interp;
+ } LoadInfo;
+diff --git a/src/execve/exit.c b/src/execve/exit.c
+index e6eff44..36cc51f 100644
+--- a/src/execve/exit.c
++++ b/src/execve/exit.c
+@@ -174,6 +174,9 @@ static void *transcript_mappings(void *cursor, const Mapping *mappings)
+ static int transfer_load_script(Tracee *tracee)
+ {
+ 	const word_t stack_pointer = peek_reg(tracee, CURRENT, STACK_POINTER);
++	static word_t page_size = 0;
++	static word_t page_mask = 0;
++
+ 	word_t entry_point;
+ 
+ 	size_t script_size;
+@@ -190,10 +193,22 @@ static int transfer_load_script(Tracee *tracee)
+ 	void *buffer;
+ 	size_t buffer_size;
+ 
++	bool needs_executable_stack;
+ 	LoadStatement *statement;
+ 	void *cursor;
+ 	int status;
+ 
++	if (page_size == 0) {
++		page_size = sysconf(_SC_PAGE_SIZE);
++		if ((int) page_size <= 0)
++			page_size = 0x1000;
++		page_mask = ~(page_size - 1);
++	}
++
++	needs_executable_stack = (tracee->load_info->needs_executable_stack
++				|| (   tracee->load_info->interp != NULL
++				    && tracee->load_info->interp->needs_executable_stack));
++
+ 	/* Strings addresses are required to generate the load script,
+ 	 * for "open" actions.  Since I want to generate it in one
+ 	 * pass, these strings will be put right below the current
+@@ -208,7 +223,7 @@ static int transfer_load_script(Tracee *tracee)
+ 			: strlen(tracee->load_info->raw_path) + 1);
+ 
+ 	/* A padding will be appended at the end of the load script
+-	 * (a.k.a "strings area") to ensure this latter is aligned on
++	 * (a.k.a "strings area") to ensure this latter is aligned to
+ 	 * a word boundary, for sake of performance.  */
+ 	padding_size = (stack_pointer - string1_size - string2_size - string3_size)
+ 			% sizeof_word(tracee);
+@@ -229,6 +244,7 @@ static int transfer_load_script(Tracee *tracee)
+ 			: LOAD_STATEMENT_SIZE(*statement, open)
+ 			+ (LOAD_STATEMENT_SIZE(*statement, mmap)
+ 				* talloc_array_length(tracee->load_info->interp->mappings)))
++		+ (needs_executable_stack ? LOAD_STATEMENT_SIZE(*statement, make_stack_exec) : 0)
+ 		+ LOAD_STATEMENT_SIZE(*statement, start);
+ 
+ 	/* Allocate enough room for both the load script and the
+@@ -266,6 +282,16 @@ static int transfer_load_script(Tracee *tracee)
+ 	else
+ 		entry_point = ELF_FIELD(tracee->load_info->elf_header, entry);
+ 
++	if (needs_executable_stack) {
++		/* Load script statement: stack_exec.  */
++		statement = cursor;
++
++		statement->action = LOAD_ACTION_MAKE_STACK_EXEC;
++		statement->make_stack_exec.start = stack_pointer & page_mask;
++
++		cursor += LOAD_STATEMENT_SIZE(*statement, make_stack_exec);
++	}
++
+ 	/* Load script statement: start.  */
+ 	statement = cursor;
+ 
+@@ -352,7 +378,7 @@ static int transfer_load_script(Tracee *tracee)
+ 	 *   | mmap file  |
+ 	 *   +------------+
+ 	 *   |   open     |
+-	 *   +------------+ <- stack pointer, sysarg1 (word aligned)
++	 *   +------------+ <- stack pointer, userarg1 (word aligned)
+ 	 */
+ 
+ 	/* Remember we are in the sysexit stage, so be sure the
+diff --git a/src/loader/assembly-arm.h b/src/loader/assembly-arm.h
+index ee5bb85..59a7fe0 100644
+--- a/src/loader/assembly-arm.h
++++ b/src/loader/assembly-arm.h
+@@ -89,4 +89,5 @@
+ #define EXECVE	11
+ #define EXIT	1
+ #define PRCTL	172
++#define MPROTECT 125
+ 
+diff --git a/src/loader/assembly-x86.h b/src/loader/assembly-x86.h
+index c83b3ef..4045144 100644
+--- a/src/loader/assembly-x86.h
++++ b/src/loader/assembly-x86.h
+@@ -65,3 +65,4 @@ extern word_t syscall_1(word_t number, word_t arg1);
+ #define EXECVE	11
+ #define EXIT	1
+ #define PRCTL	172
++#define MPROTECT 125
+diff --git a/src/loader/assembly-x86_64.h b/src/loader/assembly-x86_64.h
+index c581208..6f431be 100644
+--- a/src/loader/assembly-x86_64.h
++++ b/src/loader/assembly-x86_64.h
+@@ -93,3 +93,4 @@
+ #define EXECVE	59
+ #define EXIT	60
+ #define PRCTL	157
++#define MPROTECT 10
+diff --git a/src/loader/loader.c b/src/loader/loader.c
+index 5b31b02..9c2037b 100644
+--- a/src/loader/loader.c
++++ b/src/loader/loader.c
+@@ -171,6 +171,14 @@ void _start(void *cursor)
+ 			cursor += LOAD_STATEMENT_SIZE(*stmt, mmap);
+ 			break;
+ 
++		case LOAD_ACTION_MAKE_STACK_EXEC:
++			SYSCALL(MPROTECT, 3,
++				stmt->make_stack_exec.start, 1,
++				PROT_READ | PROT_WRITE | PROT_EXEC | PROT_GROWSDOWN);
++
++			cursor += LOAD_STATEMENT_SIZE(*stmt, make_stack_exec);
++			break;
++
+ 		case LOAD_ACTION_START_TRACED:
+ 			traced = true;
+ 			/* Fall through.  */
+diff --git a/src/loader/script.h b/src/loader/script.h
+index bb48af5..6ae7621 100644
+--- a/src/loader/script.h
++++ b/src/loader/script.h
+@@ -42,6 +42,10 @@ struct load_statement {
+ 			word_t clear_length;
+ 		} mmap;
+ 
++		struct {
++			word_t start;
++		} make_stack_exec;
++
+ 		struct {
+ 			word_t stack_pointer;
+ 			word_t entry_point;
+@@ -67,7 +71,8 @@ typedef struct load_statement LoadStatement;
+ #define LOAD_ACTION_OPEN		1
+ #define LOAD_ACTION_MMAP_FILE		2
+ #define LOAD_ACTION_MMAP_ANON		3
+-#define LOAD_ACTION_START_TRACED	4
+-#define LOAD_ACTION_START		5
++#define LOAD_ACTION_MAKE_STACK_EXEC	4
++#define LOAD_ACTION_START_TRACED	5
++#define LOAD_ACTION_START		6
+ 
+ #endif /* SCRIPT */
+
+commit d649854ddb66779950954aac99d960379c631a71
+Author: Nicolas Cornu <ncornu@aldebaran.com>
+Date:   Wed Jul 29 14:52:57 2015 +0200
+
+    Fix use of size
+
+diff --git a/src/execve/enter.c b/src/execve/enter.c
+index 8f22d9c..4c163a1 100644
+--- a/src/execve/enter.c
++++ b/src/execve/enter.c
+@@ -454,10 +454,10 @@ static int expand_runner(Tracee* tracee, char host_path[PATH_MAX], char user_pat
+ }
+ 
+ extern unsigned char _binary_loader_exe_start;
+-extern unsigned char _binary_loader_exe_size;
++extern unsigned char _binary_loader_exe_end;
+ 
+ extern unsigned char WEAK _binary_loader_m32_exe_start;
+-extern unsigned char WEAK _binary_loader_m32_exe_size;
++extern unsigned char WEAK _binary_loader_m32_exe_end;
+ 
+ /**
+  * Extract the built-in loader.  This function returns NULL if an
+@@ -483,11 +483,11 @@ static char *extract_loader(const Tracee *tracee, bool wants_32bit_version)
+ 
+ 	if (wants_32bit_version) {
+ 		start = (void *) &_binary_loader_m32_exe_start;
+-		size  = (size_t) &_binary_loader_m32_exe_size;
++		size  = (size_t)(&_binary_loader_m32_exe_end-&_binary_loader_m32_exe_start);
+ 	}
+ 	else {
+ 		start = (void *) &_binary_loader_exe_start;
+-		size  = (size_t) &_binary_loader_exe_size;
++		size  = (size_t) (&_binary_loader_exe_end-&_binary_loader_exe_start);
+ 	}
+ 
+ 	status2 = write(fd, start, size);
diff --git a/sys-apps/proot/files/proot-5.1.0-makefile.patch b/sys-apps/proot/files/proot-5.1.0-makefile.patch
new file mode 100644
index 000000000000..414cb29010cb
--- /dev/null
+++ b/sys-apps/proot/files/proot-5.1.0-makefile.patch
@@ -0,0 +1,22 @@
+--- a/src/GNUmakefile	2018-08-01 16:30:00.957743804 +0300
++++ b/src/GNUmakefile	2018-08-01 16:30:34.876741798 +0300
+@@ -15,8 +15,8 @@
+ OBJDUMP  = $(CROSS_COMPILE)objdump
+ 
+ CPPFLAGS += -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -I. -I$(VPATH)
+-CFLAGS   += -Wall -Wextra -O2
+-LDFLAGS  += -ltalloc
++CFLAGS   += -Wall -Wextra
++LDFLAGS  += -ltalloc -Wl,-z,noexecstack
+ 
+ CARE_LDFLAGS = -larchive
+ 
+@@ -182,7 +182,7 @@
+ $(eval $(call define_from_arch.h,$1,LOADER_ADDRESS))
+ 
+ LOADER_CFLAGS$1  += -fPIC -ffreestanding $(LOADER_ARCH_CFLAGS$1)
+-LOADER_LDFLAGS$1 += -static -nostdlib -Wl$(BUILD_ID_NONE),-Ttext=$(LOADER_ADDRESS$1)
++LOADER_LDFLAGS$1 += -static -nostdlib -Wl$(BUILD_ID_NONE),-Ttext=$(LOADER_ADDRESS$1),-z,noexecstack
+ 
+ loader/loader$1.o: loader/loader.c
+ 	@mkdir -p $$(dir $$@)
diff --git a/sys-apps/proot/proot-3.2.2-r1.ebuild b/sys-apps/proot/proot-3.2.2-r1.ebuild
deleted file mode 100644
index ef14402f0834..000000000000
--- a/sys-apps/proot/proot-3.2.2-r1.ebuild
+++ /dev/null
@@ -1,72 +0,0 @@
-# Copyright 1999-2014 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=5
-MY_PN="PRoot"
-
-inherit eutils pax-utils toolchain-funcs
-
-DESCRIPTION="User-space implementation of chroot, mount --bind, and binfmt_misc"
-HOMEPAGE="https://proot-me.github.io/"
-SRC_URI="https://github.com/proot-me/${MY_PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="amd64 x86"
-IUSE="care test"
-
-RDEPEND="care? ( app-arch/libarchive:0= )
-	 sys-libs/talloc"
-DEPEND="${RDEPEND}
-	care? ( dev-libs/uthash )
-	test? ( dev-util/valgrind )"
-
-# Breaks sandbox
-RESTRICT="test"
-
-S="${WORKDIR}/${MY_PN}-${PV}"
-
-src_prepare() {
-	epatch  "${FILESDIR}/${PN}-3.2.1-makefile.patch" \
-		"${FILESDIR}/${PN}-2.3.1-lib-paths-fix.patch" \
-		"${FILESDIR}/${P}-build-care.patch"
-	epatch_user
-}
-
-src_compile() {
-	# build the proot and care targets
-	emake -C src V=1 \
-		CC="$(tc-getCC)" \
-		CHECK_VERSION="true" \
-		CAREBUILDENV="ok" \
-		proot $(usex care "care" "" "" "")
-}
-
-src_install() {
-	if use care; then
-		# Workaround for bug #493416
-		pax-mark -Emp src/care
-		dobin src/care
-	fi
-	# Workaround for bug #493416
-	pax-mark -Emp src/proot
-
-	dobin src/proot
-	doman doc/proot.1
-	dodoc doc/*.txt doc/articles/*
-}
-
-src_test() {
-	emake -C tests -j1 CC="$(tc-getCC)"
-}
-
-pkg_postinst() {
-	if use care; then
-		elog "You have enabled 'care' USE flag, that builds and installs"
-		elog "dynamically linked care binary."
-		elog "Upstream does NOT support such way of building CARE,"
-		elog "it provides only prebuilt binaries."
-		elog "CARE also has known problems on hardened systems"
-		elog "Please do NOT file bugs about them to https://bugs.gentoo.org"
-	fi
-}
diff --git a/sys-apps/proot/proot-4.0.1.ebuild b/sys-apps/proot/proot-4.0.1.ebuild
deleted file mode 100644
index 33b2ca7192b2..000000000000
--- a/sys-apps/proot/proot-4.0.1.ebuild
+++ /dev/null
@@ -1,67 +0,0 @@
-# Copyright 1999-2014 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=5
-MY_PN="PRoot"
-
-inherit eutils toolchain-funcs
-
-DESCRIPTION="User-space implementation of chroot, mount --bind, and binfmt_misc"
-HOMEPAGE="https://proot-me.github.io/"
-SRC_URI="https://github.com/proot-me/${MY_PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-IUSE="care test"
-
-RDEPEND="care? ( app-arch/libarchive:0= )
-	 sys-libs/talloc"
-DEPEND="${RDEPEND}
-	care? ( dev-libs/uthash )
-	test? ( dev-util/valgrind )"
-
-# Breaks sandbox
-RESTRICT="test"
-
-S="${WORKDIR}/${MY_PN}-${PV}"
-
-src_prepare() {
-	epatch  "${FILESDIR}/${PN}-3.2.1-makefile.patch" \
-		"${FILESDIR}/${PN}-2.3.1-lib-paths-fix.patch" \
-		"${FILESDIR}/${PN}-3.2.2-build-care.patch" \
-		"${FILESDIR}/${PN}-4.0.1-argv.patch"
-	epatch_user
-}
-
-src_compile() {
-	# build the proot and care targets
-	emake -C src V=1 \
-		CC="$(tc-getCC)" \
-		CHECK_VERSION="true" \
-		CAREBUILDENV="ok" \
-		proot $(use care && echo "care")
-}
-
-src_install() {
-	use care && dobin src/care
-	dobin src/proot
-	newman doc/proot/man.1 proot.1
-	dodoc doc/proot/*.txt
-	dodoc -r doc/articles
-}
-
-src_test() {
-	emake -C tests -j1 CC="$(tc-getCC)"
-}
-
-pkg_postinst() {
-	if use care; then
-		elog "You have enabled 'care' USE flag, that builds and installs"
-		elog "dynamically linked care binary."
-		elog "Upstream does NOT support such way of building CARE,"
-		elog "it provides only prebuilt binaries."
-		elog "CARE also has known problems on hardened systems"
-		elog "Please do NOT file bugs about them to https://bugs.gentoo.org"
-	fi
-}
diff --git a/sys-apps/proot/proot-5.0.0.ebuild b/sys-apps/proot/proot-5.0.0.ebuild
deleted file mode 100644
index 6e07802ddcba..000000000000
--- a/sys-apps/proot/proot-5.0.0.ebuild
+++ /dev/null
@@ -1,68 +0,0 @@
-# Copyright 1999-2015 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=5
-MY_PN="PRoot"
-
-inherit eutils toolchain-funcs
-
-DESCRIPTION="User-space implementation of chroot, mount --bind, and binfmt_misc"
-HOMEPAGE="https://proot-me.github.io/"
-SRC_URI="https://github.com/proot-me/${MY_PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-IUSE="care test"
-
-RDEPEND="care? ( app-arch/libarchive:0= )
-	 sys-libs/talloc"
-DEPEND="${RDEPEND}
-	care? ( dev-libs/uthash )
-	test? ( dev-util/valgrind )"
-
-# Breaks sandbox
-RESTRICT="test"
-
-S="${WORKDIR}/${MY_PN}-${PV}"
-
-src_prepare() {
-	epatch  "${FILESDIR}/${PN}-3.2.1-makefile.patch" \
-		"${FILESDIR}/${PN}-2.3.1-lib-paths-fix.patch"
-	epatch_user
-}
-
-src_compile() {
-	# build the proot and care targets
-	emake -C src V=1 \
-		CC="$(tc-getCC)" \
-		CHECK_VERSION="true" \
-		CAREBUILDENV="ok" \
-		proot $(use care && echo "care")
-}
-
-src_install() {
-	if use care; then
-		dobin src/care
-		dodoc doc/care/*.txt
-	fi
-	dobin src/proot
-	newman doc/proot/man.1 proot.1
-	dodoc doc/proot/*.txt
-	dodoc -r doc/articles
-}
-
-src_test() {
-	emake -C tests -j1 CC="$(tc-getCC)"
-}
-
-pkg_postinst() {
-	if use care; then
-		elog "You have enabled 'care' USE flag, that builds and installs"
-		elog "dynamically linked care binary."
-		elog "Upstream does NOT support such way of building CARE,"
-		elog "it provides only prebuilt binaries."
-		elog "CARE also has known problems on hardened systems"
-		elog "Please do NOT file bugs about them to https://bugs.gentoo.org"
-	fi
-}
diff --git a/sys-apps/proot/proot-4.0.3.ebuild b/sys-apps/proot/proot-5.1.0-r1.ebuild
index 6e07802ddcba..d8436f733386 100644
--- a/sys-apps/proot/proot-4.0.3.ebuild
+++ b/sys-apps/proot/proot-5.1.0-r1.ebuild
@@ -1,7 +1,7 @@
-# Copyright 1999-2015 Gentoo Foundation
+# Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=5
+EAPI=7
 MY_PN="PRoot"
 
 inherit eutils toolchain-funcs
@@ -26,11 +26,11 @@ RESTRICT="test"
 
 S="${WORKDIR}/${MY_PN}-${PV}"
 
-src_prepare() {
-	epatch  "${FILESDIR}/${PN}-3.2.1-makefile.patch" \
-		"${FILESDIR}/${PN}-2.3.1-lib-paths-fix.patch"
-	epatch_user
-}
+PATCHES=(
+	"${FILESDIR}/${PN}-5.1.0-makefile.patch"
+	"${FILESDIR}/${PN}-2.3.1-lib-paths-fix.patch"
+	"${FILESDIR}/${PN}-5.1.0-loader.patch"
+)
 
 src_compile() {
 	# build the proot and care targets
@@ -57,6 +57,11 @@ src_test() {
 }
 
 pkg_postinst() {
+	elog "If you have segfaults on recent (>4.8) kernels"
+	elog "try to disable seccomp support like so:"
+	elog "'export PROOT_NO_SECCOMP=1'"
+	elog "prior to running proot"
+
 	if use care; then
 		elog "You have enabled 'care' USE flag, that builds and installs"
 		elog "dynamically linked care binary."
diff --git a/sys-apps/proot/proot-5.1.0.ebuild b/sys-apps/proot/proot-5.1.0.ebuild
deleted file mode 100644
index 6e07802ddcba..000000000000
--- a/sys-apps/proot/proot-5.1.0.ebuild
+++ /dev/null
@@ -1,68 +0,0 @@
-# Copyright 1999-2015 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=5
-MY_PN="PRoot"
-
-inherit eutils toolchain-funcs
-
-DESCRIPTION="User-space implementation of chroot, mount --bind, and binfmt_misc"
-HOMEPAGE="https://proot-me.github.io/"
-SRC_URI="https://github.com/proot-me/${MY_PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-IUSE="care test"
-
-RDEPEND="care? ( app-arch/libarchive:0= )
-	 sys-libs/talloc"
-DEPEND="${RDEPEND}
-	care? ( dev-libs/uthash )
-	test? ( dev-util/valgrind )"
-
-# Breaks sandbox
-RESTRICT="test"
-
-S="${WORKDIR}/${MY_PN}-${PV}"
-
-src_prepare() {
-	epatch  "${FILESDIR}/${PN}-3.2.1-makefile.patch" \
-		"${FILESDIR}/${PN}-2.3.1-lib-paths-fix.patch"
-	epatch_user
-}
-
-src_compile() {
-	# build the proot and care targets
-	emake -C src V=1 \
-		CC="$(tc-getCC)" \
-		CHECK_VERSION="true" \
-		CAREBUILDENV="ok" \
-		proot $(use care && echo "care")
-}
-
-src_install() {
-	if use care; then
-		dobin src/care
-		dodoc doc/care/*.txt
-	fi
-	dobin src/proot
-	newman doc/proot/man.1 proot.1
-	dodoc doc/proot/*.txt
-	dodoc -r doc/articles
-}
-
-src_test() {
-	emake -C tests -j1 CC="$(tc-getCC)"
-}
-
-pkg_postinst() {
-	if use care; then
-		elog "You have enabled 'care' USE flag, that builds and installs"
-		elog "dynamically linked care binary."
-		elog "Upstream does NOT support such way of building CARE,"
-		elog "it provides only prebuilt binaries."
-		elog "CARE also has known problems on hardened systems"
-		elog "Please do NOT file bugs about them to https://bugs.gentoo.org"
-	fi
-}