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infra: move ccache handling to the toolchain wrapper

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Since we always have a toolchain wrapper now, we can move the ccache
call to the toolchain wrapper.

The hostcc ccache handling obviously stays.

The global addition of ccache to TARGET_CC/CXX is removed, but many
individual packages and infras still add it. This means we have a
chain like this: ccache -> toolchain-wrapper -> ccache -> gcc
However, this is fairly harmless: for cache misses, the inner ccache
just adds overhead and for cache hits, the inner ccache is never
called. Later patches will remove these redundant ccache calls.

As a side effect, perl now supports ccache as well.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Cc: Danomi Manchego <danomimanchego123@gmail.com>
Cc: Károly Kasza <kaszak@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Arnout Vandecappelle
2015-10-04 16:23:56 +01:00
committed by Peter Korsgaard
parent 2f8dc29c1d
commit d82f69cf10
3 changed files with 18 additions and 6 deletions
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15
toolchain/toolchain-wrapper.c
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@@ -23,6 +23,9 @@
#include <stdlib.h>
#include <errno.h>
#ifdef BR_CCACHE
static char ccache_path[PATH_MAX];
#endif
static char path[PATH_MAX];
static char sysroot[PATH_MAX];
@@ -40,6 +43,9 @@ static char sysroot[PATH_MAX];
#define EXCLUSIVE_ARGS 3
static char *predef_args[] = {
#ifdef BR_CCACHE
ccache_path,
#endif
path,
"--sysroot", sysroot,
#ifdef BR_ABI
@@ -147,6 +153,13 @@ int main(int argc, char **argv)
perror(__FILE__ ": overflow");
return 3;
}
#ifdef BR_CCACHE
ret = snprintf(ccache_path, sizeof(ccache_path), "%s/usr/bin/ccache", absbasedir);
if (ret >= sizeof(ccache_path)) {
perror(__FILE__ ": overflow");
return 3;
}
#endif
ret = snprintf(sysroot, sizeof(sysroot), "%s/" BR_SYSROOT, absbasedir);
if (ret >= sizeof(sysroot)) {
perror(__FILE__ ": overflow");
@@ -251,7 +264,7 @@ int main(int argc, char **argv)
}
}
if (execv(path, args))
if (execv(args[0], args))
perror(path);
free(args);