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| author | Martin Liska <mliska@suse.cz> | 2022-08-09 13:59:36 +0200 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2022-08-10 13:12:23 +0200 |
| commit | 53e3b2bf16a486c15c20991c6095f7be09012b55 (patch) | |
| tree | 0cee0eea3b24ffd003f90559d788411079a5439e /gcc | |
| parent | 1270ccda70ca09f7d4fe76b5156dca8992bd77a6 (diff) | |
| download | gcc-53e3b2bf16a486c15c20991c6095f7be09012b55.zip gcc-53e3b2bf16a486c15c20991c6095f7be09012b55.tar.gz gcc-53e3b2bf16a486c15c20991c6095f7be09012b55.tar.bz2 | |
lto: support --jobserver-style=fifo for recent GNU make
gcc/ChangeLog:
* opts-jobserver.h: Add one member.
* opts-common.cc (jobserver_info::jobserver_info): Parse FIFO
format of --jobserver-auth.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/opts-common.cc | 17 | ||||
| -rw-r--r-- | gcc/opts-jobserver.h | 2 |
2 files changed, 17 insertions, 2 deletions
diff --git a/gcc/opts-common.cc b/gcc/opts-common.cc index 4d4f424..c2993f9 100644 --- a/gcc/opts-common.cc +++ b/gcc/opts-common.cc @@ -2010,8 +2010,14 @@ void prepend_xassembler_to_collect_as_options (const char *collect_as_options, jobserver_info::jobserver_info () { + /* Traditionally, GNU make uses opened pipes for jobserver-auth, + e.g. --jobserver-auth=3,4. + Starting with GNU make 4.4, one can use --jobserver-style=fifo + and then named pipe is used: --jobserver-auth=fifo:/tmp/hcsparta. */ + /* Detect jobserver and drop it if it's not working. */ string js_needle = "--jobserver-auth="; + string fifo_prefix = "fifo:"; const char *envval = getenv ("MAKEFLAGS"); if (envval != NULL) @@ -2020,8 +2026,15 @@ jobserver_info::jobserver_info () size_t n = makeflags.rfind (js_needle); if (n != string::npos) { - if (sscanf (makeflags.c_str () + n + js_needle.size (), - "%d,%d", &rfd, &wfd) == 2 + string ending = makeflags.substr (n + js_needle.size ()); + if (ending.find (fifo_prefix) == 0) + { + ending = ending.substr (fifo_prefix.size ()); + pipe_path = ending.substr (0, ending.find (' ')); + is_active = true; + } + else if (sscanf (makeflags.c_str () + n + js_needle.size (), + "%d,%d", &rfd, &wfd) == 2 && rfd > 0 && wfd > 0 && is_valid_fd (rfd) diff --git a/gcc/opts-jobserver.h b/gcc/opts-jobserver.h index 68ce188..98ea257 100644 --- a/gcc/opts-jobserver.h +++ b/gcc/opts-jobserver.h @@ -37,6 +37,8 @@ struct jobserver_info int rfd = -1; /* File descriptor for writing used for jobserver communication. */ int wfd = -1; + /* Named pipe path. */ + string pipe_path = ""; /* Return true if jobserver is active. */ bool is_active = false; }; |