Luming Wang has uploaded this change for review. (
https://gem5-review.googlesource.com/c/public/gem5/+/53183 )
Change subject: sim: fix build error when glibc >= 2.34
......................................................................
sim: fix build error when glibc >= 2.34
Since glibc >= 2.34, MINSIGSTKSZ and SIGSTKSZ are no longer
constant on Linux. As a result, the definition
"fatalSigStack[2*SIGSTKSZ]" fails to be compiled.
Thus, we need to dynamically allocate it.
Change-Id: Ibccc367818483b9c94beda871d1d95367d1e8b04
---
M src/sim/init_signals.cc
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/src/sim/init_signals.cc b/src/sim/init_signals.cc
index cac0190..6f1490b 100644
--- a/src/sim/init_signals.cc
+++ b/src/sim/init_signals.cc
@@ -64,18 +64,24 @@
{
// Use an separate stack for fatal signal handlers
-static uint8_t fatalSigStack[2 * SIGSTKSZ];
+#define STKSZ (2 * SIGSTKSZ)
+static uint8_t *fatalSigStack;
static bool
setupAltStack()
{
+ static bool isFirstTime = true;
+ if (isFirstTime) {
+ fatalSigStack = new uint8_t[STKSZ];
+ isFirstTime = false;
+ }
stack_t stack;
#if defined(__FreeBSD__) && (__FreeBSD_version < 1100097)
stack.ss_sp = (char *)fatalSigStack;
#else
stack.ss_sp = fatalSigStack;
#endif
- stack.ss_size = sizeof(fatalSigStack);
+ stack.ss_size = STKSZ;
stack.ss_flags = 0;
return sigaltstack(&stack, NULL) == 0;
--
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Gerrit-Project: public/gem5
Gerrit-Branch: develop
Gerrit-Change-Id: Ibccc367818483b9c94beda871d1d95367d1e8b04
Gerrit-Change-Number: 53183
Gerrit-PatchSet: 1
Gerrit-Owner: Luming Wang <[email protected]>
Gerrit-MessageType: newchange
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