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build.plat: allow selecting a specific UNIX shell interpreter.

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Mostly because vendor tools have bashisms.
This commit is contained in:
whitequark 2019-08-04 13:18:29 +00:00
parent 34a97b2751
commit 5eb4e2ee51
1 changed files with 10 additions and 0 deletions
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10
nmigen/build/plat.py
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@ -221,11 +221,13 @@ class TemplatedPlatform(Platform):
toolchain = abstractproperty()
file_templates = abstractproperty()
command_templates = abstractproperty()
unix_interpreter = "sh"
build_script_templates = {
"build_{{name}}.sh": """
# {{autogenerated}}
set -e{{verbose("x")}}
{{emit_unix_interpreter()}}
[ -n "$NMIGEN_{{platform.toolchain}}_env" ] && . "$NMIGEN_{{platform.toolchain}}_env"
{{emit_commands("sh")}}
""",
@ -242,6 +244,13 @@ class TemplatedPlatform(Platform):
# and to incorporate the nMigen version into generated code.
autogenerated = "Automatically generated by nMigen {}. Do not edit.".format(__version__)
def emit_unix_interpreter():
if self.unix_interpreter == "sh":
return "# runs on any POSIX sh"
if self.unix_interpreter == "bash":
return """if [ -z "$BASH" ] ; then exec /bin/bash "$0" "$@"; fi"""
assert False
def emit_design(backend):
return {"rtlil": rtlil, "verilog": verilog}[backend].convert(fragment, name=name,
ports=list(self.iter_ports()), missing_domain=lambda name: None)
@ -308,6 +317,7 @@ class TemplatedPlatform(Platform):
return compiled.render({
"name": name,
"platform": self,
"emit_unix_interpreter": emit_unix_interpreter,
"emit_design": emit_design,
"emit_commands": emit_commands,
"get_tool": get_tool,