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target/ppc/arch_dump: set prstatus pid to cpuid

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Every other architecture does this, and debuggers need it to be able to
identify which prstatus note corresponds to which CPU.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Harsh Prateek Bora <harshpb@linux.ibm.com>
Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
This commit is contained in:
Omar Sandoval 2024-07-19 11:39:05 -07:00 • committed by Nicholas Piggin
parent cfb52d07f5
commit 2587a57dbb
1 changed files with 15 additions and 9 deletions
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24
target/ppc/arch_dump.c
View file

@ -47,9 +47,14 @@ struct PPCUserRegStruct {
} QEMU_PACKED; } QEMU_PACKED;
struct PPCElfPrstatus { struct PPCElfPrstatus {
char pad1[112]; char pad1[32]; /* 32 == offsetof(struct elf_prstatus, pr_pid) */
uint32_t pid;
char pad2[76]; /* 76 == offsetof(struct elf_prstatus, pr_reg) -
offsetof(struct elf_prstatus, pr_ppid) */
struct PPCUserRegStruct pr_reg; struct PPCUserRegStruct pr_reg;
char pad2[40]; char pad3[40]; /* 40 == sizeof(struct elf_prstatus) -
offsetof(struct elf_prstatus, pr_reg) -
sizeof(struct user_pt_regs) */
} QEMU_PACKED; } QEMU_PACKED;
@ -96,7 +101,7 @@ typedef struct NoteFuncArg {
DumpState *state; DumpState *state;
} NoteFuncArg; } NoteFuncArg;
static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu) static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu, int id)
{ {
int i; int i;
reg_t cr; reg_t cr;
@ -109,6 +114,7 @@ static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu)
prstatus = &note->contents.prstatus; prstatus = &note->contents.prstatus;
memset(prstatus, 0, sizeof(*prstatus)); memset(prstatus, 0, sizeof(*prstatus));
prstatus->pid = cpu_to_dump32(s, id);
reg = &prstatus->pr_reg; reg = &prstatus->pr_reg;
for (i = 0; i < 32; i++) { for (i = 0; i < 32; i++) {
@ -127,7 +133,7 @@ static void ppc_write_elf_prstatus(NoteFuncArg *arg, PowerPCCPU *cpu)
reg->ccr = cpu_to_dump_reg(s, cr); reg->ccr = cpu_to_dump_reg(s, cr);
} }
static void ppc_write_elf_fpregset(NoteFuncArg *arg, PowerPCCPU *cpu) static void ppc_write_elf_fpregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id)
{ {
int i; int i;
struct PPCElfFpregset *fpregset; struct PPCElfFpregset *fpregset;
@ -146,7 +152,7 @@ static void ppc_write_elf_fpregset(NoteFuncArg *arg, PowerPCCPU *cpu)
fpregset->fpscr = cpu_to_dump_reg(s, cpu->env.fpscr); fpregset->fpscr = cpu_to_dump_reg(s, cpu->env.fpscr);
} }
static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu) static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id)
{ {
int i; int i;
struct PPCElfVmxregset *vmxregset; struct PPCElfVmxregset *vmxregset;
@ -178,7 +184,7 @@ static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu)
vmxregset->vscr.u32[3] = cpu_to_dump32(s, ppc_get_vscr(&cpu->env)); vmxregset->vscr.u32[3] = cpu_to_dump32(s, ppc_get_vscr(&cpu->env));
} }
static void ppc_write_elf_vsxregset(NoteFuncArg *arg, PowerPCCPU *cpu) static void ppc_write_elf_vsxregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id)
{ {
int i; int i;
struct PPCElfVsxregset *vsxregset; struct PPCElfVsxregset *vsxregset;
@ -195,7 +201,7 @@ static void ppc_write_elf_vsxregset(NoteFuncArg *arg, PowerPCCPU *cpu)
} }
} }
static void ppc_write_elf_speregset(NoteFuncArg *arg, PowerPCCPU *cpu) static void ppc_write_elf_speregset(NoteFuncArg *arg, PowerPCCPU *cpu, int id)
{ {
struct PPCElfSperegset *speregset; struct PPCElfSperegset *speregset;
Note *note = &arg->note; Note *note = &arg->note;
@ -211,7 +217,7 @@ static void ppc_write_elf_speregset(NoteFuncArg *arg, PowerPCCPU *cpu)
static const struct NoteFuncDescStruct { static const struct NoteFuncDescStruct {
int contents_size; int contents_size;
void (*note_contents_func)(NoteFuncArg *arg, PowerPCCPU *cpu); void (*note_contents_func)(NoteFuncArg *arg, PowerPCCPU *cpu, int id);
} note_func[] = { } note_func[] = {
{sizeof_field(Note, contents.prstatus), ppc_write_elf_prstatus}, {sizeof_field(Note, contents.prstatus), ppc_write_elf_prstatus},
{sizeof_field(Note, contents.fpregset), ppc_write_elf_fpregset}, {sizeof_field(Note, contents.fpregset), ppc_write_elf_fpregset},
@ -282,7 +288,7 @@ static int ppc_write_all_elf_notes(const char *note_name,
arg.note.hdr.n_descsz = cpu_to_dump32(s, nf->contents_size); arg.note.hdr.n_descsz = cpu_to_dump32(s, nf->contents_size);
strncpy(arg.note.name, note_name, sizeof(arg.note.name)); strncpy(arg.note.name, note_name, sizeof(arg.note.name));
(*nf->note_contents_func)(&arg, cpu); (*nf->note_contents_func)(&arg, cpu, id);
note_size = note_size =
sizeof(arg.note) - sizeof(arg.note.contents) + nf->contents_size; sizeof(arg.note) - sizeof(arg.note.contents) + nf->contents_size;