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6786948: SA on core file fails on solaris-amd64 if vm started with -XX:+StartAttachListener

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Reviewed-by: jjh, dcubed
This commit is contained in:
Swamy Venkataramanappa 2009-01-14 19:45:01 -08:00
parent 74a472983b
commit b15aadf61d
2 changed files with 16 additions and 10 deletions
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13
hotspot/agent/src/os/linux/ps_core.c
View file

@ -238,8 +238,8 @@ struct FileMapHeader {
// Ignore the rest of the FileMapHeader. We don't need those fields here.
};
static bool read_int(struct ps_prochandle* ph, uintptr_t addr, int* pvalue) {
int i;
static bool read_jboolean(struct ps_prochandle* ph, uintptr_t addr, jboolean* pvalue) {
jboolean i;
if (ps_pdread(ph, (psaddr_t) addr, &i, sizeof(i)) == PS_OK) {
*pvalue = i;
return true;
@ -295,7 +295,7 @@ static bool init_classsharing_workaround(struct ps_prochandle* ph) {
int fd = -1, m = 0;
uintptr_t base = 0, useSharedSpacesAddr = 0;
uintptr_t sharedArchivePathAddrAddr = 0, sharedArchivePathAddr = 0;
int useSharedSpaces = 0;
jboolean useSharedSpaces = 0;
map_info* mi = 0;
memset(classes_jsa, 0, sizeof(classes_jsa));
@ -306,12 +306,15 @@ static bool init_classsharing_workaround(struct ps_prochandle* ph) {
return false;
}
if (read_int(ph, useSharedSpacesAddr, &useSharedSpaces) != true) {
// Hotspot vm types are not exported to build this library. So
// using equivalent type jboolean to read the value of
// UseSharedSpaces which is same as hotspot type "bool".
if (read_jboolean(ph, useSharedSpacesAddr, &useSharedSpaces) != true) {
print_debug("can't read the value of 'UseSharedSpaces' flag\n");
return false;
}
if (useSharedSpaces == 0) {
if ((int)useSharedSpaces == 0) {
print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n");
return true;
}

13
hotspot/agent/src/os/solaris/proc/saproc.cpp
View file

@ -502,8 +502,8 @@ struct FileMapHeader {
};
static bool
read_int(struct ps_prochandle* ph, psaddr_t addr, int* pvalue) {
int i;
read_jboolean(struct ps_prochandle* ph, psaddr_t addr, jboolean* pvalue) {
jboolean i;
if (ps_pread(ph, addr, &i, sizeof(i)) == PS_OK) {
*pvalue = i;
return true;
@ -575,10 +575,13 @@ init_classsharing_workaround(void *cd, const prmap_t* pmap, const char* obj_name
}
// read the value of the flag "UseSharedSpaces"
int value = 0;
if (read_int(ph, useSharedSpacesAddr, &value) != true) {
// Since hotspot types are not available to build this library. So
// equivalent type "jboolean" is used to read the value of "UseSharedSpaces"
// which is same as hotspot type "bool".
jboolean value = 0;
if (read_jboolean(ph, useSharedSpacesAddr, &value) != true) {
THROW_NEW_DEBUGGER_EXCEPTION_("can't read 'UseSharedSpaces' flag", 1);
} else if (value == 0) {
} else if ((int)value == 0) {
print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n");
return 1;
}