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minidump: Use provided msgbuf pointer

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Don't assume we are dumping the global message buffer, but use the one
provided by the state argument. While here, drop superfluous
cast to char *.

Reviewed by:	markj, jhb
MFC after:	2 weeks
Sponsored by:	Juniper Networks, Inc.
Sponsored by:	Klara, Inc.
Differential Revision:	https://reviews.freebsd.org/D31991
This commit is contained in:
Mitchell Horne 2021-11-17 11:34:13 -04:00
parent 681bd71047
commit 1d2d1418b4
7 changed files with 37 additions and 27 deletions
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8
sys/amd64/amd64/minidump_machdep.c
View File

@ -171,6 +171,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
int ii, j, k, n;
int retry_count;
struct minidumphdr mdhdr;
struct msgbuf *mbp;
retry_count = 0;
retry:
@ -252,8 +253,9 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
}
/* Calculate dump size. */
mbp = state->msgbufp;
dumpsize = pmapsize;
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(sizeof(dump_avail));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
VM_PAGE_DUMP_FOREACH(pa) {
@ -273,7 +275,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.pmapsize = pmapsize;
mdhdr.kernbase = VM_MIN_KERNEL_ADDRESS;
@ -299,7 +301,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
goto fail;
/* Dump msgbuf up front */
error = blk_write(di, (char *)msgbufp->msg_ptr, 0, round_page(msgbufp->msg_size));
error = blk_write(di, mbp->msg_ptr, 0, round_page(mbp->msg_size));
if (error)
goto fail;

9
sys/arm/arm/minidump_machdep.c
View File

@ -156,6 +156,7 @@ int
cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
{
struct minidumphdr mdhdr;
struct msgbuf *mbp;
uint64_t dumpsize, *dump_avail_buf;
uint32_t ptesize;
uint32_t pa, prev_pa = 0, count = 0;
@ -190,8 +191,9 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
}
/* Calculate dump size. */
mbp = state->msgbufp;
dumpsize = ptesize;
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(nitems(dump_avail) * sizeof(uint64_t));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
VM_PAGE_DUMP_FOREACH(pa) {
@ -209,7 +211,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.ptesize = ptesize;
mdhdr.kernbase = KERNBASE;
@ -235,8 +237,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
goto fail;
/* Dump msgbuf up front */
error = blk_write(di, (char *)msgbufp->msg_ptr, 0,
round_page(msgbufp->msg_size));
error = blk_write(di, mbp->msg_ptr, 0, round_page(mbp->msg_size));
if (error)
goto fail;

9
sys/arm64/arm64/minidump_machdep.c
View File

@ -151,6 +151,7 @@ int
cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
{
struct minidumphdr mdhdr;
struct msgbuf *mbp;
pd_entry_t *l0, *l1, l1e, *l2, l2e;
pt_entry_t *l3, l3e;
vm_offset_t va, kva_end;
@ -209,8 +210,9 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
}
/* Calculate dump size. */
mbp = state->msgbufp;
dumpsize = pmapsize;
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(sizeof(dump_avail));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
VM_PAGE_DUMP_FOREACH(pa) {
@ -227,7 +229,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.pmapsize = pmapsize;
mdhdr.kernbase = VM_MIN_KERNEL_ADDRESS;
@ -254,8 +256,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
goto fail;
/* Dump msgbuf up front */
error = blk_write(di, (char *)msgbufp->msg_ptr, 0,
round_page(msgbufp->msg_size));
error = blk_write(di, mbp->msg_ptr, 0, round_page(mbp->msg_size));
if (error)
goto fail;

9
sys/i386/i386/minidump_machdep_base.c
View File

@ -164,6 +164,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
pt_entry_t *pt, pte;
int j, k;
struct minidumphdr mdhdr;
struct msgbuf *mbp;
/* Snapshot the KVA upper bound in case it grows. */
kva_end = kernel_vm_end;
@ -212,8 +213,9 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
}
/* Calculate dump size. */
mbp = state->msgbufp;
dumpsize = ptesize;
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(sizeof(dump_avail));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
VM_PAGE_DUMP_FOREACH(pa) {
@ -232,7 +234,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.ptesize = ptesize;
mdhdr.kernbase = KERNBASE;
@ -257,7 +259,8 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
goto fail;
/* Dump msgbuf up front */
error = blk_write(di, (char *)msgbufp->msg_ptr, 0, round_page(msgbufp->msg_size));
error = blk_write(di, (char *)mbp->msg_ptr, 0,
round_page(mbp->msg_size));
if (error)
goto fail;

9
sys/mips/mips/minidump_machdep.c
View File

@ -109,6 +109,7 @@ int
cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
{
struct minidumphdr mdhdr;
struct msgbuf *mbp;
uint64_t *dump_avail_buf;
uint32_t ptesize;
vm_paddr_t pa;
@ -148,8 +149,9 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
}
/* Calculate dump size. */
mbp = state->msgbufp;
dumpsize = ptesize;
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(nitems(dump_avail) * sizeof(uint64_t));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
VM_PAGE_DUMP_FOREACH(pa) {
@ -167,7 +169,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.ptesize = ptesize;
mdhdr.kernbase = VM_MIN_KERNEL_ADDRESS;
@ -191,8 +193,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
goto fail;
/* Dump msgbuf up front */
error = write_buffer(di, (char *)msgbufp->msg_ptr,
round_page(msgbufp->msg_size));
error = write_buffer(di, mbp->msg_ptr, round_page(mbp->msg_size));
if (error)
goto fail;

11
sys/powerpc/powerpc/minidump_machdep.c
View File

@ -195,6 +195,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
int error, retry_count;
uint32_t pmapsize;
struct minidumphdr mdhdr;
struct msgbuf *mbp;
retry_count = 0;
retry:
@ -210,8 +211,9 @@ retry:
}
/* Calculate dump size */
mbp = state->msgbufp;
dumpsize = PAGE_SIZE; /* header */
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(sizeof(dump_avail));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
dumpsize += pmapsize;
@ -229,7 +231,7 @@ retry:
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
strncpy(mdhdr.mmu_name, pmap_mmu_name(), sizeof(mdhdr.mmu_name) - 1);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.pmapsize = pmapsize;
mdhdr.kernbase = VM_MIN_KERNEL_ADDRESS;
@ -260,9 +262,8 @@ retry:
dump_total("header", PAGE_SIZE);
/* Dump msgbuf up front */
error = blk_write(di, (char *)msgbufp->msg_ptr, 0,
round_page(msgbufp->msg_size));
dump_total("msgbuf", round_page(msgbufp->msg_size));
error = blk_write(di, mbp->msg_ptr, 0, round_page(mbp->msg_size));
dump_total("msgbuf", round_page(mbp->msg_size));
/* Dump dump_avail */
_Static_assert(sizeof(dump_avail) <= sizeof(pgbuf),

9
sys/riscv/riscv/minidump_machdep.c
View File

@ -158,6 +158,7 @@ cpu_minidumpsys(struct dumperinfo *di, const struct minidumpstate *state)
pd_entry_t *l1, *l2, l2e;
pt_entry_t *l3, l3e;
struct minidumphdr mdhdr;
struct msgbuf *mbp;
uint32_t pmapsize;
vm_offset_t va, kva_max;
vm_paddr_t pa;
@ -211,8 +212,9 @@ retry:
}
/* Calculate dump size */
mbp = state->msgbufp;
dumpsize = pmapsize;
dumpsize += round_page(msgbufp->msg_size);
dumpsize += round_page(mbp->msg_size);
dumpsize += round_page(sizeof(dump_avail));
dumpsize += round_page(BITSET_SIZE(vm_page_dump_pages));
VM_PAGE_DUMP_FOREACH(pa) {
@ -230,7 +232,7 @@ retry:
bzero(&mdhdr, sizeof(mdhdr));
strcpy(mdhdr.magic, MINIDUMP_MAGIC);
mdhdr.version = MINIDUMP_VERSION;
mdhdr.msgbufsize = msgbufp->msg_size;
mdhdr.msgbufsize = mbp->msg_size;
mdhdr.bitmapsize = round_page(BITSET_SIZE(vm_page_dump_pages));
mdhdr.pmapsize = pmapsize;
mdhdr.kernbase = KERNBASE;
@ -257,8 +259,7 @@ retry:
goto fail;
/* Dump msgbuf up front */
error = blk_write(di, (char *)msgbufp->msg_ptr, 0,
round_page(msgbufp->msg_size));
error = blk_write(di, mbp->msg_ptr, 0, round_page(mbp->msg_size));
if (error)
goto fail;