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Make setjmp()/longjmp() use sigprocmask.

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This commit is contained in:
Olivier Houchard 2004-09-23 23:13:46 +00:00
parent 05a07e2bda
commit 3d90a3cd91
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=135685
1 changed files with 9 additions and 9 deletions
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18
lib/libc/arm/gen/setjmp.S
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@ -48,16 +48,14 @@ __FBSDID("$FreeBSD$");
ENTRY(setjmp)
/* Block all signals and retrieve the old signal mask */
stmfd sp!, {r0, r14}
mov r0, #0x00000000
add r2, r0, #4 /* oset */
mov r0, #0x00000001 /* SIG_BLOCK */
mov r1, #0 /* set */
bl PIC_SYM(_C_LABEL(sigblock), PLT)
mov r1, r0
bl PIC_SYM(_C_LABEL(sigprocmask), PLT)
ldmfd sp!, {r0, r14}
/* Store signal mask */
str r1, [r0, #(25 * 4)]
ldr r1, .Lsetjmp_magic
str r1, [r0], #4
@ -88,14 +86,16 @@ ENTRY(__longjmp)
bne botch
/* Fetch signal mask */
ldr r2, [r0, #(25 * 4)]
add r2, r0, #4
/* Set signal mask */
stmfd sp!, {r0, r1, r14}
sub sp, sp, #4 /* align the stack */
mov r0, r2
bl PIC_SYM(_C_LABEL(sigsetmask), PLT)
mov r1, r2
mov r0, #3 /* SIG_SETMASK */
mov r2, #0
bl PIC_SYM(_C_LABEL(sigprocmask), PLT)
add sp, sp, #4 /* unalign the stack */
ldmfd sp!, {r0, r1, r14}