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contrib/elf2dmp: Fix error reporting style in addrspace.c

Browse source 
include/qapi/error.h says:
> We recommend
> * bool-valued functions return true on success / false on failure,
> ...

Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Viktor Prutyanov <viktor.prutyanov@phystech.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240307-elf2dmp-v4-5-4f324ad4d99d@daynix.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Akihiko Odaki 2024-03-07 19:20:48 +09:00 • committed by Peter Maydell
parent 262a0ff880
commit a15f974949
3 changed files with 28 additions and 31 deletions
Download patch file Download diff file Expand all files Collapse all files

8
contrib/elf2dmp/addrspace.c
View file

@ -226,8 +226,8 @@ void *va_space_resolve(struct va_space *vs, uint64_t va)
return pa_space_resolve(vs->ps, pa); return pa_space_resolve(vs->ps, pa);
} }
int va_space_rw(struct va_space *vs, uint64_t addr, bool va_space_rw(struct va_space *vs, uint64_t addr,
void *buf, size_t size, int is_write) void *buf, size_t size, int is_write)
{ {
while (size) { while (size) {
uint64_t page = addr & ELF2DMP_PFN_MASK; uint64_t page = addr & ELF2DMP_PFN_MASK;
@ -238,7 +238,7 @@ int va_space_rw(struct va_space *vs, uint64_t addr,
ptr = va_space_resolve(vs, addr); ptr = va_space_resolve(vs, addr);
if (!ptr) { if (!ptr) {
return 1; return false;
} }
if (is_write) { if (is_write) {
@ -252,5 +252,5 @@ int va_space_rw(struct va_space *vs, uint64_t addr,
addr += s; addr += s;
} }
return 0; return true;
} }

4
contrib/elf2dmp/addrspace.h
View file

@ -39,7 +39,7 @@ void pa_space_destroy(struct pa_space *ps);
void va_space_create(struct va_space *vs, struct pa_space *ps, uint64_t dtb); void va_space_create(struct va_space *vs, struct pa_space *ps, uint64_t dtb);
void va_space_set_dtb(struct va_space *vs, uint64_t dtb); void va_space_set_dtb(struct va_space *vs, uint64_t dtb);
void *va_space_resolve(struct va_space *vs, uint64_t va); void *va_space_resolve(struct va_space *vs, uint64_t va);
int va_space_rw(struct va_space *vs, uint64_t addr, bool va_space_rw(struct va_space *vs, uint64_t addr,
void *buf, size_t size, int is_write); void *buf, size_t size, int is_write);
#endif /* ADDRSPACE_H */ #endif /* ADDRSPACE_H */

47
contrib/elf2dmp/main.c
View file

@ -79,9 +79,9 @@ static KDDEBUGGER_DATA64 *get_kdbg(uint64_t KernBase, struct pdb_reader *pdb,
bool decode = false; bool decode = false;
uint64_t kwn, kwa, KdpDataBlockEncoded; uint64_t kwn, kwa, KdpDataBlockEncoded;
if (va_space_rw(vs, if (!va_space_rw(vs,
KdDebuggerDataBlock + offsetof(KDDEBUGGER_DATA64, Header), KdDebuggerDataBlock + offsetof(KDDEBUGGER_DATA64, Header),
&kdbg_hdr, sizeof(kdbg_hdr), 0)) { &kdbg_hdr, sizeof(kdbg_hdr), 0)) {
eprintf("Failed to extract KDBG header\n"); eprintf("Failed to extract KDBG header\n");
return NULL; return NULL;
} }
@ -97,8 +97,8 @@ static KDDEBUGGER_DATA64 *get_kdbg(uint64_t KernBase, struct pdb_reader *pdb,
return NULL; return NULL;
} }
if (va_space_rw(vs, KiWaitNever, &kwn, sizeof(kwn), 0) || if (!va_space_rw(vs, KiWaitNever, &kwn, sizeof(kwn), 0) ||
va_space_rw(vs, KiWaitAlways, &kwa, sizeof(kwa), 0)) { !va_space_rw(vs, KiWaitAlways, &kwa, sizeof(kwa), 0)) {
return NULL; return NULL;
} }
@ -122,7 +122,7 @@ static KDDEBUGGER_DATA64 *get_kdbg(uint64_t KernBase, struct pdb_reader *pdb,
kdbg = g_malloc(kdbg_hdr.Size); kdbg = g_malloc(kdbg_hdr.Size);
if (va_space_rw(vs, KdDebuggerDataBlock, kdbg, kdbg_hdr.Size, 0)) { if (!va_space_rw(vs, KdDebuggerDataBlock, kdbg, kdbg_hdr.Size, 0)) {
eprintf("Failed to extract entire KDBG\n"); eprintf("Failed to extract entire KDBG\n");
g_free(kdbg); g_free(kdbg);
return NULL; return NULL;
@ -286,7 +286,7 @@ static int fill_header(WinDumpHeader64 *hdr, struct pa_space *ps,
return 1; return 1;
} }
if (va_space_rw(vs, KdVersionBlock, &kvb, sizeof(kvb), 0)) { if (!va_space_rw(vs, KdVersionBlock, &kvb, sizeof(kvb), 0)) {
eprintf("Failed to extract KdVersionBlock\n"); eprintf("Failed to extract KdVersionBlock\n");
return 1; return 1;
} }
@ -352,8 +352,8 @@ static void fill_context(KDDEBUGGER_DATA64 *kdbg,
WinContext64 ctx; WinContext64 ctx;
QEMUCPUState *s = qe->state[i]; QEMUCPUState *s = qe->state[i];
if (va_space_rw(vs, kdbg->KiProcessorBlock + sizeof(Prcb) * i, if (!va_space_rw(vs, kdbg->KiProcessorBlock + sizeof(Prcb) * i,
&Prcb, sizeof(Prcb), 0)) { &Prcb, sizeof(Prcb), 0)) {
eprintf("Failed to read CPU #%d PRCB location\n", i); eprintf("Failed to read CPU #%d PRCB location\n", i);
continue; continue;
} }
@ -363,8 +363,8 @@ static void fill_context(KDDEBUGGER_DATA64 *kdbg,
continue; continue;
} }
if (va_space_rw(vs, Prcb + kdbg->OffsetPrcbContext, if (!va_space_rw(vs, Prcb + kdbg->OffsetPrcbContext,
&Context, sizeof(Context), 0)) { &Context, sizeof(Context), 0)) {
eprintf("Failed to read CPU #%d ContextFrame location\n", i); eprintf("Failed to read CPU #%d ContextFrame location\n", i);
continue; continue;
} }
@ -372,7 +372,7 @@ static void fill_context(KDDEBUGGER_DATA64 *kdbg,
printf("Filling context for CPU #%d...\n", i); printf("Filling context for CPU #%d...\n", i);
win_context_init_from_qemu_cpu_state(&ctx, s); win_context_init_from_qemu_cpu_state(&ctx, s);
if (va_space_rw(vs, Context, &ctx, sizeof(ctx), 1)) { if (!va_space_rw(vs, Context, &ctx, sizeof(ctx), 1)) {
eprintf("Failed to fill CPU #%d context\n", i); eprintf("Failed to fill CPU #%d context\n", i);
continue; continue;
} }
@ -396,8 +396,8 @@ static int pe_get_data_dir_entry(uint64_t base, void *start_addr, int idx,
return 1; return 1;
} }
if (va_space_rw(vs, base + dos_hdr->e_lfanew, if (!va_space_rw(vs, base + dos_hdr->e_lfanew,
&nt_hdrs, sizeof(nt_hdrs), 0)) { &nt_hdrs, sizeof(nt_hdrs), 0)) {
return 1; return 1;
} }
@ -406,9 +406,7 @@ static int pe_get_data_dir_entry(uint64_t base, void *start_addr, int idx,
return 1; return 1;
} }
if (va_space_rw(vs, if (!va_space_rw(vs, base + data_dir[idx].VirtualAddress, entry, size, 0)) {
base + data_dir[idx].VirtualAddress,
entry, size, 0)) {
return 1; return 1;
} }
@ -470,9 +468,8 @@ static bool pe_check_pdb_name(uint64_t base, void *start_addr,
return false; return false;
} }
if (va_space_rw(vs, if (!va_space_rw(vs, base + debug_dir.AddressOfRawData,
base + debug_dir.AddressOfRawData, rsds, sizeof(*rsds), 0)) {
rsds, sizeof(*rsds), 0)) {
eprintf("Failed to resolve OMFSignatureRSDS\n"); eprintf("Failed to resolve OMFSignatureRSDS\n");
return false; return false;
} }
@ -488,9 +485,9 @@ static bool pe_check_pdb_name(uint64_t base, void *start_addr,
return false; return false;
} }
if (va_space_rw(vs, base + debug_dir.AddressOfRawData + if (!va_space_rw(vs, base + debug_dir.AddressOfRawData +
offsetof(OMFSignatureRSDS, name), pdb_name, sizeof(PDB_NAME), offsetof(OMFSignatureRSDS, name),
0)) { pdb_name, sizeof(PDB_NAME), 0)) {
eprintf("Failed to resolve PDB name\n"); eprintf("Failed to resolve PDB name\n");
return false; return false;
} }
@ -556,8 +553,8 @@ int main(int argc, char *argv[])
printf("CPU #0 IDT is at 0x%016"PRIx64"\n", state->idt.base); printf("CPU #0 IDT is at 0x%016"PRIx64"\n", state->idt.base);
if (va_space_rw(&vs, state->idt.base, if (!va_space_rw(&vs, state->idt.base,
&first_idt_desc, sizeof(first_idt_desc), 0)) { &first_idt_desc, sizeof(first_idt_desc), 0)) {
eprintf("Failed to get CPU #0 IDT[0]\n"); eprintf("Failed to get CPU #0 IDT[0]\n");
goto out_ps; goto out_ps;
} }