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Message-Id: <20200903112309.102601-4-sorear@fastmail.com>
Date: Thu, 3 Sep 2020 07:22:58 -0400
From: Stefan O'Rear <sorear@...tmail.com>
To: musl@...ts.openwall.com
Cc: Stefan O'Rear <sorear@...tmail.com>
Subject: [PATCH 03/14] time64: Only getrlimit/setrlimit if they exist
riscv32 and future architectures only provide prlimit64.
---
src/misc/getrlimit.c | 6 +++++-
src/misc/setrlimit.c | 6 +++++-
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/src/misc/getrlimit.c b/src/misc/getrlimit.c
index 2ab2f0f4..bf676307 100644
--- a/src/misc/getrlimit.c
+++ b/src/misc/getrlimit.c
@@ -6,12 +6,13 @@
int getrlimit(int resource, struct rlimit *rlim)
{
- unsigned long k_rlim[2];
int ret = syscall(SYS_prlimit64, 0, resource, 0, rlim);
if (!ret) {
FIX(rlim->rlim_cur);
FIX(rlim->rlim_max);
}
+#ifdef SYS_getrlimit
+ unsigned long k_rlim[2];
if (!ret || errno != ENOSYS)
return ret;
if (syscall(SYS_getrlimit, resource, k_rlim) < 0)
@@ -21,6 +22,9 @@ int getrlimit(int resource, struct rlimit *rlim)
FIX(rlim->rlim_cur);
FIX(rlim->rlim_max);
return 0;
+#else
+ return ret;
+#endif
}
weak_alias(getrlimit, getrlimit64);
diff --git a/src/misc/setrlimit.c b/src/misc/setrlimit.c
index 7a66ab29..62eba5f3 100644
--- a/src/misc/setrlimit.c
+++ b/src/misc/setrlimit.c
@@ -8,7 +8,6 @@
static int __setrlimit(int resource, const struct rlimit *rlim)
{
- unsigned long k_rlim[2];
struct rlimit tmp;
if (SYSCALL_RLIM_INFINITY != RLIM_INFINITY) {
tmp = *rlim;
@@ -17,10 +16,15 @@ static int __setrlimit(int resource, const struct rlimit *rlim)
rlim = &tmp;
}
int ret = __syscall(SYS_prlimit64, 0, resource, rlim, 0);
+#ifdef SYS_setrlimit
+ unsigned long k_rlim[2];
if (ret != -ENOSYS) return ret;
k_rlim[0] = MIN(rlim->rlim_cur, MIN(-1UL, SYSCALL_RLIM_INFINITY));
k_rlim[1] = MIN(rlim->rlim_max, MIN(-1UL, SYSCALL_RLIM_INFINITY));
return __syscall(SYS_setrlimit, resource, k_rlim);
+#else
+ return ret;
+#endif
}
struct ctx {
--
2.25.4
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