hare

commit 71be4f501fc5211cf67c77232cc7c879ee5a3b2e
parent 31551552a14960196c6b540fa9e842f9dc5ed993
Author: Mykyta Holubakha <hilobakho@gmail.com>
Date:   Thu, 18 Mar 2021 15:37:57 +0200

linux: new module for linux-specific stuff

Utility methods for getting auxv come first

Diffstat:
M
gen-stdlib
 | 
17
+++++++++++++++++
A
linux/env.ha
 | 
4
++++
A
linux/start.ha
 | 
10
++++++++++
M
stdlib.mk
 | 
54
++++++++++++++++++++++++++++++++++++++++++++++++++++++

4 files changed, 85 insertions(+), 0 deletions(-)
diff --git a/gen-stdlib b/gen-stdlib
@@ -340,6 +340,21 @@ io() {
 	gen_ssa io strings
 }
 
+linux() {
+	printf '# linux\n'
+	gen_srcs linux \
+		start.ha \
+		env.ha
+	gen_ssa linux format::elf
+}
+
+linux_vdso() {
+	printf '# linux::vdso\n'
+	gen_srcs linux::vdso \
+		vdso.ha
+	gen_ssa linux::vdso linux strings format::elf
+}
+
 math_random() {
 	printf '# math::random\n'
 	gen_srcs math::random \
@@ -507,6 +522,8 @@ hare_parse
 hash
 hash_fnv
 io
+linux
+linux_vdso
 math_random
 os
 os_exec
diff --git a/linux/env.ha b/linux/env.ha
@@ -0,0 +1,4 @@
+use format::elf;
+
+// System V auxillary vector for the current process
+export let auxv: *[*]format::elf::auxv64 = null: *[*]format::elf::auxv64;
diff --git a/linux/start.ha b/linux/start.ha
@@ -0,0 +1,10 @@
+use rt;
+use format::elf;
+
+@init fn init_linux() void = {
+	let i = 0;
+	for (rt::envp[i] != null) {
+		i += 1;
+	};
+	auxv = &rt::envp[i + 1]: *[*]elf::auxv64;
+};
diff --git a/stdlib.mk b/stdlib.mk
@@ -134,6 +134,12 @@ hare_stdlib_deps+=$(stdlib_hash_fnv)
 stdlib_io=$(HARECACHE)/io/io.o
 hare_stdlib_deps+=$(stdlib_io)
 
+stdlib_linux=$(HARECACHE)/linux/linux.o
+hare_stdlib_deps+=$(stdlib_linux)
+
+stdlib_linux_vdso=$(HARECACHE)/linux/vdso/linux_vdso.o
+hare_stdlib_deps+=$(stdlib_linux_vdso)
+
 stdlib_math_random=$(HARECACHE)/math/random/math_random.o
 hare_stdlib_deps+=$(stdlib_math_random)
 
@@ -420,6 +426,27 @@ $(HARECACHE)/io/io.ssa: $(stdlib_io_srcs) $(stdlib_rt) $(stdlib_strings)
 	@HARECACHE=$(HARECACHE) $(HAREC) $(HAREFLAGS) -o $@ -Nio \
 		-t$(HARECACHE)/io/io.td $(stdlib_io_srcs)
 
+# linux
+stdlib_linux_srcs= \
+	$(STDLIB)/linux/start.ha \
+	$(STDLIB)/linux/env.ha
+
+$(HARECACHE)/linux/linux.ssa: $(stdlib_linux_srcs) $(stdlib_rt) $(stdlib_format_elf)
+	@printf 'HAREC \t$@\n'
+	@mkdir -p $(HARECACHE)/linux
+	@HARECACHE=$(HARECACHE) $(HAREC) $(HAREFLAGS) -o $@ -Nlinux \
+		-t$(HARECACHE)/linux/linux.td $(stdlib_linux_srcs)
+
+# linux::vdso
+stdlib_linux_vdso_srcs= \
+	$(STDLIB)/linux/vdso/vdso.ha
+
+$(HARECACHE)/linux/vdso/linux_vdso.ssa: $(stdlib_linux_vdso_srcs) $(stdlib_rt) $(stdlib_linux) $(stdlib_strings) $(stdlib_format_elf)
+	@printf 'HAREC \t$@\n'
+	@mkdir -p $(HARECACHE)/linux/vdso
+	@HARECACHE=$(HARECACHE) $(HAREC) $(HAREFLAGS) -o $@ -Nlinux::vdso \
+		-t$(HARECACHE)/linux/vdso/linux_vdso.td $(stdlib_linux_vdso_srcs)
+
 # math::random
 stdlib_math_random_srcs= \
 	$(STDLIB)/math/random/random.ha
@@ -712,6 +739,12 @@ hare_testlib_deps+=$(testlib_hash_fnv)
 testlib_io=$(TESTCACHE)/io/io.o
 hare_testlib_deps+=$(testlib_io)
 
+testlib_linux=$(TESTCACHE)/linux/linux.o
+hare_testlib_deps+=$(testlib_linux)
+
+testlib_linux_vdso=$(TESTCACHE)/linux/vdso/linux_vdso.o
+hare_testlib_deps+=$(testlib_linux_vdso)
+
 testlib_math_random=$(TESTCACHE)/math/random/math_random.o
 hare_testlib_deps+=$(testlib_math_random)
 
@@ -1006,6 +1039,27 @@ $(TESTCACHE)/io/io.ssa: $(testlib_io_srcs) $(testlib_rt) $(testlib_strings)
 	@HARECACHE=$(TESTCACHE) $(HAREC) $(TESTHAREFLAGS) -o $@ -Nio \
 		-t$(TESTCACHE)/io/io.td $(testlib_io_srcs)
 
+# linux
+testlib_linux_srcs= \
+	$(STDLIB)/linux/start.ha \
+	$(STDLIB)/linux/env.ha
+
+$(TESTCACHE)/linux/linux.ssa: $(testlib_linux_srcs) $(testlib_rt) $(testlib_format_elf)
+	@printf 'HAREC \t$@\n'
+	@mkdir -p $(TESTCACHE)/linux
+	@HARECACHE=$(TESTCACHE) $(HAREC) $(TESTHAREFLAGS) -o $@ -Nlinux \
+		-t$(TESTCACHE)/linux/linux.td $(testlib_linux_srcs)
+
+# linux::vdso
+testlib_linux_vdso_srcs= \
+	$(STDLIB)/linux/vdso/vdso.ha
+
+$(TESTCACHE)/linux/vdso/linux_vdso.ssa: $(testlib_linux_vdso_srcs) $(testlib_rt) $(testlib_linux) $(testlib_strings) $(testlib_format_elf)
+	@printf 'HAREC \t$@\n'
+	@mkdir -p $(TESTCACHE)/linux/vdso
+	@HARECACHE=$(TESTCACHE) $(HAREC) $(TESTHAREFLAGS) -o $@ -Nlinux::vdso \
+		-t$(TESTCACHE)/linux/vdso/linux_vdso.td $(testlib_linux_vdso_srcs)
+
 # math::random
 testlib_math_random_srcs= \
 	$(STDLIB)/math/random/random.ha